Best Firewall for Your Laptop

While we have something for you laptop, you must be very sensitive to it. Being the most sophisticated machine of the lesser evil can lead to a big problem for you. And if outside the warranty period, and then disappeared. You should always keep an eye on your laptop. Now, having the best firewall for your laptop is difficult to be carried. As the laptop is in the interference of many networks and depending on their use always try to change the network to take complete protection from hackers and script is very harmful to your laptop while online should have a good firewall installed on your laptop. So be careful when using different networks to connect to the Internet.

The other thing you can do is have a good firewall installed on your laptop that continually monitors incoming and outgoing packets on the network and warns that "every bit" suspect transferred from your laptop or system. There are many of them available in freeware shareware. The most popular category is freeware Comodo Firewall, which has the highest efficiency to block all traffic from the suspect system.

In fact many of the freeware Comodo stroller as we are, but stayed out of these. On the other hand, many anti-virus programs and firewalls are also installed in them, but not very effective in stopping the suspect script. I always try to have a good firewall and a good antivirus software installed on your laptop so your laptop is completely free of any attacks from hackers.

Choosing The Best Antivirus Firewall Software

Today, more and more people use computers for their work. The popularity and capacity of this machine is so phenomenal, it is not surprising that many of the threats such as viruses, are constantly growing, alteration and destruction of computer systems. Worse, it could also ruin the lives of innocent people, to some extent. What was a luxury, for years, buying and installing a firewall, antivirus software has become rudimentary for anyone who wants to make sure their computers and life-are safe from hackers.

If you are one of the millions who surf the web regularly, you should consider installing antivirus software firewall that protects your computer and provide online security. However, many are at a loss when it comes to choosing which software to buy. To help you make better decisions, to read some useful guidelines for the purchase of this software.

The first thing to do is ask friends and colleagues for referrals. Information on their personal assessments and reviews with the brand of software they are using before you buy. Their responses are guaranteed honest and impartial, and you have a first hand account of how the work of different antivirus firewall software. You can use your opinions to decide which software is best for your team based on your lifestyle and habits and attitudes toward computers. You can also check Web sites that offer online comments on the best software on the market.

Be sure to look for software that is compatible with the operating system of the machine. Many software can work well for many operating systems, while others have specific requirements for your operating system. Having a firewall and antivirus software is not fully compatible with your computer only cause unnecessary costs, even if the software is intended to be the best among the pack.

Before deciding to buy the firewall is recommended antivirus software, consider downloading a trial version of software from the site of the brand. Most of these vendors offer trial versions of a month, and be an enterprising person who is, in doing so takes more time in the careful analysis software works best for your team.

When purchasing antivirus software, firewalls, prefer a genre that has an optimal security fund. This simply means that after installing the software, if not always on hand to scan and detect virus threats. Also opt for sophisticated software and updated and accurate that you can start the automatic updates so you can ensure that you are always protected against the latest threats. More importantly, the control software
manuals and information guides for the certification of products, the establishment of standards bodies.

If you're not a techie person, also prefer to buy and install antivirus software firewall that ensures ease of use. Before installing the software, be sure to read and understand the manual very well. It is useless to buy software not being able to fully utilize in the long run if you do not know how to apply the process of its operation.

Not all antivirus software firewalls available on the market today can provide 100 percent protection against online threats and risks, but still, it should have one installed on your computer that does not have any protection.

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Firewall Bypass Software

If you use the Windows XP firewall, then you do not have adequate protection, since it does not offer any outbound protection. The situation with Windows Vista is not much better, since it seems to be agreement that the construction Windows Vista Firewall offers no outlet for safety. This is a real surprise in what has long been recognized that the XP firewall was pretty useless for the same reason and now they have had years to improve this feature. This can be resolved sometime in the future, but meanwhile you need a firewall can protect against the vulnerability of input and output. Consider trying one of the following three free firewall.

Although it can be annoying a lot of time working offline, and always work on your software is available online open.Spy Several can be downloaded.

Then you will see a simple scenario of Internet access, which will help us understand the basic steps required to configure an ASA 5510. Suppose you assigned a static public IP address 100.100.100.1 of our ISP. Also part of the internal network subnet 192.168.10.0/24. Interface ethernet 0 / 0 is connected to the outside (the ISP) and ethernet0 1 / is connected to the internal LAN switch.

The computer may slow the activity of unwanted CPU, disk usage and traffic is not produces that.Your computer may become unstable and may be an accident.

For a more technical definition, a firewall is software or hardware designed to filter online information from the web to your computer. When you go to a website to send information from your computer to the Internet. This information is considered as special commands. Any special command (data) is sent via packets. Packages sent need to respect the rules that are roughly in line together. If a package does not respect, it will be discarded in the network, ie not reach its destination. Firewall is designed to operate in this way. I will not allow unauthorized packets for network transition, without complying with the Protocol.

Through ad-funded websites, where advertising revenue is paid by legitimate site.Spyware a matter of time.

For example, if our internal interface connects to the internal network 192.168.1.0/24, this means that packets reach the firewall's internal interface should be a source address in the 192.168.1.0/24 range otherwise be discarded (if IP spoofing is configured).

When the search is different website.So lists in a sense, this is just a list, and the list different.But is informative and does not allow users to see what some others decided. As a result, there are many places that are positive feedback and negative feedback to the ground as well.



Many security programs that could be used eventually.These are some of the ten anti-virus tools as listed website.Make sure to read all information provided on the site to determine if the site can be a legitimate check, because otherwise you must be careful when downloading any software from the Internet in their computer.There is a risk if you arent sure of the program.

Firewalls can also be based on certain rules or filters to block the movement of incoming and outgoing data inappropriate. You can benefit from the option of Internet Protocol (IP), for example, and to keep existing staff in the network protocol addresses specific access via the Internet or receiving emails from them. Firewalls can also block the movement of data across the network using a unique identifier, the title to access control (MAC). Many firewalls can control the data using keyword filters or scope, and allows the data that is aimed at a particular location. The firewall also allows the creation of more sophisticated to make the rules more complex data.

How many computers do you use? Not all computers have malware protection? Did you know that sometimes you need to install and use more than one product? Arm yourself: Make sure your Internet security software installed on your computer.Purchase security software on your computer, but also a very good free antivirus and malware removal available in Internet.Temptation not fall into pop-ups ads promising free cash or products! Do not click on pop-up saying the computer is not click on links in e-mail infected.Do.

CiscoASA5500 (config) # ip verify reverse path interface INTERFACE_NAME "For example, to enable IP spoofing on the internal interface, use the following command: CiscoASA5500 (config) # ip verify reverse path interface inside

So look for that search for web hosting three points are the technical requirements for below.Characteristics website hosting is the most important point to be considered, including:) server platform and hardware requirements Think It is necessary, for example, to create a website that uses programming environments such as Active Server Pages (ASP), Visual Basic scripts, Cold Fusion or Microsoft Access and SQL database, you need web hosting service to support Windows platform as Windows NT or Windows 2000 servers.Similarly, programming languages such as Perl, CGI, SSI, PHP and MySQL database, all web hosting / Linux Unix platform support can be useful.

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Prevent Identity Theft With A Firewall

A firewall can be a hardware or software program that is designed to prevent outsiders from accessing your computer or network, and in some cases, used to prevent applications already located on your computer to access the Internet to transmit back to a host. These applications can be understood as a relationship / server to the client. The program is installed on your computer can be referred to the client, and where the client gets the information that is designed for capturing, connects to the server to transmit data.

Some of the programs installed on your computer, such as free software that enables P2P to share music or movies, usually referred to as adware or spyware, and which gather information about you such as geographic location, websites that you visit After age and sex, and then determined based advertising on this information. Some programs are more insidious to the point of capture credit card numbers, social security numbers, birth dates and account numbers and try to convey this information to a server computer.

Ideally, you will want a firewall that blocks not only Internet connections, but also alerts you if a program already on your computer is trying to connect to the Internet. Some of the programs installed would of course have a valid reason to try to connect to the Internet, such as an antivirus program that needs to connect to a server to download the latest definitions to protect your computer against the latest types of infections. You may also have an operating system that is needed to connect to the server manufacturer to download the latest security fixes or patches.

There is a wide range of firewall available to consumers, both hardware and software based. Research is as much as possible and check with reliable sources and product or set of products that best fit your needs. My personal advice is to stay away from small companies and start-ups, instead of using one of the leading companies that are recognized as authorities. For example, Symantec and Network Associates are keenly aware of both companies to Norton and McAfee products. For hardware, you can look like Linksys or Netgear solid products created for use with daily average consumer. Again, these are just examples of personal taste, so do as much research as possible solution would be to determine which meet your needs if you own a home or a laptop with wireless WAN computer security manager with 1,500.

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Firewalls of Linux

Firewalls are necessary for the teams, if we connect to the Internet. There are several methods of work such as firewall and verify incoming information. At the same time, the firewall stops it being opened. Provides security for your computer and protects against system failures. For personal computers may be all that useful, but the networks do not.
Linux uses iptables filter to give greater protection and security. S is a base Linux software packages. We can determine exactly how you want to control incoming traffic through this program. We can define the criteria for each port, services, and we can define our strict rules for our inbound traffic.
By level of network security firewall, there are several distributions. IPCop is one of them. It 's just for safety. We need a computer running IPCop, and there are some basic activities such as painting, network connectivity and routing. Linux distributions like SuSE or Fedora for desktop use graphic editor and other software
in IPCop but there are only these core activities and iptables mentioned very important. It is our firewall between your network and the Internet does not work on it.
You need a more complicated setup, but worth it because it gives strong protection to our network.

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Bypass Your School or Workplace Firewall With School Proxy Sites

What is a proxy for school? 'S the answer to every problem the student? To understand what the school is a proxy, we take a closer look because there first. Let's talk a little history of the school 'proxy and how you can learn to use this type of instrument to suit your needs.

Most of the time, many people have a difficulty with access to your favorite sites such as Facebook, MySpace, Friendster or many other social networking sites because they are behind a firewall when they are at school or in an institution.

The reason this happens is because most educational institutions do not want their students to become addicted to Facebook or other sites that 'waste' valuable time study students. They want the children to concentrate on their studies and get good grades. They do not want people to waste their time playing computer games meaningless. Another reason why you want to block people from these sites is because they want to discourage them to stop the school server. When they do everything at once, it could cause a lot of time waiting for people who actually use the Internet to find information online.

Consequently, most adolescents or young adults who are in school facilities are unable to access sites and are always looking for alternatives when it comes to "turn around" the problem of firewalls.

The answer to this is the agent of the school. Is the response of the Internet firewall from school upset. Many students will be able to enjoy freedom of navigation provided to all sites that can master the tools.

When you look closely at a computer network, a proxy server is a computer or simply an application program that the customer requests transmission service requests to other servers. It also serves as an intelligent gateway as well.

A proxy is a web proxy that will allow the school trains students to bypass the restrictions of a firewall at school. These proxy sites allow free flow to navigate and access your Facebook profile with ease.

When it comes to finding the right school proxy, you must choose between a long list. The reason is that the firewall might even ban certain proxy sites once they are detected.

There are many ways you can use this to their advantage. All you have to do is get the right kind of information and know how to make full use of it easily. There are many other uses of the representation of the school. You can play your favorite games on the network, network with other friends and people around the world. You can play Diablo 2, Starcraft, Red Alert, Warcraft 3, Dota, Dawn of War and all sorts of other massively multiplayer role-playing games online, such as Ragnarok, Word of Warcraft, Age of Conan and many other games that are blocked by the school or firewall.

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Home Networking - Firewalls

Contractors use the word firewall for a physical barrier to keep the fire from spreading from one room to another. Home networks also have (or should have) firewalls. These hardware, software or a combination that protects a network from unauthorized access and malicious software.

computer firewall that protects the system in two ways. You can keep the programs to make Internet connections, which maintains an infected program or a virus spreading. More commonly, however, the purpose of the network firewall at home to keep the system safe outside attempts to access it. unauthorized access attempts can be obtained from the Internet, other computers on your home network or even "wardrivers" (hackers go through the computer without cables) that can simply be guided by a virus and networking.

Protect the network from certain types of access may make it harder for them even if they can access their course network.Of, blocking all traffic in both directions would be a useless network. Network security is a balance between maintaining some of the traffic to allow access to the traffic you want. Where exactly this balance is a difficult question. A number of more or less standard items that people should be careful when trying to implement effective systems of firewalls. The two most common are TCP and UDP protocols.

UDP is a transmission protocol and does not require any two-way connection. TCP, but is two directions. UDP can be input or output, for example when you ping a server. To open a port on the firewall, it is usually necessary to specify both the port number and protocol. What we should aim to close the doors we do not know for sure that you need to open. Only open ports or allow certain protocols in the direction you need - and only when you know what you do. Closed in both directions must be the rule, unless it is necessary.

HTTP: This is the standard protocol used for data applications on the Internet and send (upload) or receive (web pages, downloading). Your system should have opened port 80 for HTTP firewall. Secure HHTP (or HTTPS) uses port 443 instead. Port 8080 is also common to HTTP connections.

FTP is commonly used to transfer files across networks, you must open the port 20 to this Protocol.

Uses SMTP to send and receive email, this protocol requires port 25 to be opened.

POP3: Used for many email systems. Open port 110 for incoming POP3 traffic.

DNS: DNS needs to send and receive, to perform the function of translating IP addresses to domain names. Open port 53 in both directions for this important functionality.

DHCP: If your IP address is assigned dynamically, not static must open the door 68 to allow this protocol.

DOOM: If you play Doom, you'll have to open port 666. Otherwise, as with any other port that is not used, is closed in both directions.

Many other ports are used for various services, such as port 1433 (Microsoft SQL Server requires this). Any program that needs a particular port must be mentioned in the documentation. Be careful when you configure the network firewall system, why do provide good security for you!

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Firewall Spam – Get Rid of Those Malicious Spams!

Cyberspace is now attacked by viruses, spam, Trojan, spy items, etc with the main aim of causing problems for Internet users. Internet users thus feel very insecure and always in fear against this software, entering the operating system or the mailbox without your permission. The need for updated and efficient spam blockers, spam firewall, anti virus and pop-ups are very important to ensure the safety and protection against these hawkers. The latest products and powerful to eliminate the spam that are programmed to keep the spam mails at bay, but only the spam filter.

And the establishment of computer firewall blocks insecure and doubtful websites also discovered a spam firewall to block all spam mail to reach the inbox of users. spam messages are sent primarily for business purposes. But they can also transmit deadly virus and spy products, which could cause rupture of the system, or help transform the high-security information to anyone outside the computer that might misuse their personal information.

Spam can be sent to the mass of electronic identification that sellers receive various means. Most of them are useless and irrelevant ads ads. Whether they are relevant, or dangerous to be addressed in time with a firewall and spam should be kept away, and will save much of your valuable time. Anti spam exchange server are also useful for spam and firewall protection and keep out spam. These anti-spam application are also available as a free good. But if the utility is required for a wider problem, as a corporate environment, it is always good to buy business software companies that deal specifically with this software experts.

Spam Firewall can protect and prevent the mail that do not belong to your contacts list. They are also more efficient than general software, anti-spam filtering is just spam. But the application of Spam Firewall is much more potent in blocking or stop spam and allow only actual messages in your inbox. These applications can also collect mail from the spam that you might have accidentally touched the case. Spam Firewall new update is definitely a safe and guaranteed to protect your computer and your spam mailbox irrelevant. So, without wasting time, manage your inbox a firewall spam protection free download from the Internet. So, get up and run!

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Why Should You Install a Firewall in Your Computer

You think your PC is secure because only you have access to it. You visit only secure sites. You do not open an email attachment without checking it for virus. Think again. Without proper protection for your system, when you go online, you are running the risk of malware and virus attacks. When you are online, clicking on that seemingly innocuous looking "check your computer for viruses" may lead to system malfunction, data theft and worse - losing your precious data for ever. For most of such ads are viruses and spyware in disguise waiting to take control of your system. When you use the search engines too the scores of sites that are listed may not be authentic ones. They may be designed to install a malware once you click anywhere in that site.

You cannot stop using the Internet, for the Internet holds large amounts of information and you use it at home and in business. Intelligence lies in knowing you are vulnerable when you connect to the Internet and taking precautions to protect your system.

So, what do you need to protect your data and system?

A firewall. A firewall can help you protect your system against hostile intrusions from the Internet by preventing unauthorized access to your system.

As you know, the Internet is a network of networks, and thousands of computers have access to your computer when you are online. Viruses can be written by anyone who has some programming skills. And you will have hundreds of them out there who think creating a virus is accomplishing something. So they spread the virus in the network and without a firewall in place, they have direct access to anyone on the Internet.

But with a firewall in your system, those malicious programs will have to return disappointed. For a firewall inspects and filters the information and all traffic routed between the Internet and your system to see if it meets certain security criteria. If it does, it is allowed otherwise it does not. A firewall is literally a protective fence that keeps off malicious programs from your system. That's why it s called a firewall.

Installing a firewall is easy and they are highly configurable. Sometimes it's frustrating to install a new program that you are not familiar with. In that case, you can get assistance from technical support providers for firewall installation and configuration. That shouldn't be costing you much. And once installed, they don't require much change in the settings - for most of us home users, it s safe enough to work with the default settings provided by the firewall program unless there is a specific need to change it.

With your PC protected by a firewall, you can relax, your PC is highly protected and there are no more security holes in your system to be exploited. You are secure!

Written by Thendral

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Checklist for Internet Security Software and Firewall

If you connect an unprotected computer or computer without any security software to the internet, cyber criminals, hackers or identity thieves can attack your computer within seconds. So, to avoid such security problems and identity theft, you should have security software with at a minimum, firewall, antispyware and antivirus protection.

There are various internet security softwares available on the internet with basic firewall protection. However you should also look at the additional security tools and features available with these softwares for complete security on internet. The checklist below can help you to select the proper security software for your computer, so that you can go online and surf the internet with confidence.

Firewall:

Firewall is necessary to block the unauthorized access to your computer data. It monitors the inbound and outbound traffic from your computer to the internet and blocks any suspicious traffic coming to your computer. Firewall could be network and program firewall and operating system firewall.

Network and program firewall:

Internet security softwares provide network and program firewall to protect your network from suspicious traffic and to shield your programs from malware. It should be a multi-layer firewall or with multiple layer of security for high level of security.

Operating system firewall:

Some internet security software also provides operating system firewall to protect your operating system. This tool blocks any malicious software from causing damage to files in your core windows operating system. It also blocks entry of hard to remove spyware with kernel-level threats to computer to protect your operating system from any damage.

Full Stealth Mode:

This feature is required to make you invisible to hackers, so that you can surf the internet without any fear of getting hacked.

Antivirus:

Antivirus is necessary to protect your computer from damages by viruses, worms and trojans. You should never connect your computer to the internet without updated antivirus program with the latest definition files.

Antispyware:

Integrated antispyware is required to protect your computer from spywares and intruders to protect your personal information. Spywares get installed on your computer without your knowledge and gather your personal data, information and web activities and transmit that data to others.

Complete Spy Site Blocking:

Spyware distribution websites are the main source for spywares. This feature blocks these websites and also blocks you from visiting these sites by mistake or redirection to websites, which distribute spywares.

Identity theft protection:

Identity theft protection is necessary to protect your identity and personal information on your computer. With increase in e-commerce, online buying and credit card usage on internet, identity theft could be major problem. So, nowadays, protection against identity theft is must while accessing the internet.

Real time updates:

Real-time security updates for protection against any new possible attacks and viruses.

Anti Spam and Anti Phishing and Email protection:

It protects you from phishing e-mails and e-mail fraud.

Instant messaging protection:

IM protection protects your instant messaging session from hackers, spammers, spywares and virus attacks. You can also use this tool to restrict your kid to use instant messengers only with trusted people.

Parental control:

This feature is necessary to prevent your kids from accessing inappropriate websites and objectionable content on web sites.

Credit Card Monitoring alerts:

Some internet security software provides credit card monitoring alerts which alert you if your credit card number appears online. This tool is very useful if you use your credit card on internet for transactions.

Although firewall, antispyware and antivirus protection is must in any internet security software, but additional security tools can also help you to improve your security on internet. With this checklist you can make the right choice for your security software program.

For more information on internet security softwares with all these features for complete security, please visit www.truevalue4money.com/pcprotect.html website.

Written by Stephen Thomson

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Broadband - How Firewall's Work

If you are a regular internet user, be it at home or at work, chances are you have heard the term “firewall”. When asked what exactly a firewall is though, many people have a limited amount of knowledge, knowing only that it is something that protects computer systems.

Quite simply, this is correct; the basic principle behind a firewall is to act as a barrier between the internet and a local computer
. This local computer can either be a standalone system, part of a home network or a larger office network.

Regardless, a firewall works the same way by keeping out unwanted hackers and/or preventing users from performing certain actions (e.g. viewing offensive websites or downloading programmes).

A firewall can either be located on a computer system, (known as a software firewall), within a network router, (known as a hardware firewall), or both.

Nearly all of today’s network routers have built in firewalls which can be configured via the computers internet browser to which they are connected. Most home computer systems are pre-installed with a software firewall; there is also a great deal of free firewalls available on the internet.

Both hardware and software firewalls work in similar ways to keep your system secure and for maximum security a combination of the two is recommended. In order to protect your system a firewall uses one or both of the following methods:

* Packet Filtering is used to compare data (or packets) that reach the firewall to predefined filters, if the data complies with the filters then it is allowed through, otherwise it is dropped.

* Stateful inspection is a newer technology which unlike packet filtering does not analyse the whole packet, but just key parts. Specific characteristics of outbound packets are compared to inbound packets and if the comparison is acceptable the data is allowed into the network, otherwise it is dropped.

By using the above technologies users are able to allow or deny traffic into and out of their network based upon IP addresses, domain names, protocols and ports.

Having a firewall set up on your broadband connection protects you from a whole host of problems such as remote login, virus's, DOS attacks etc. By protecting your broadband connection you can make your browsing experience much safer and faster. If you feels as though you could be getting a better a deal elsewhere then compare broadband online today.

Written by Liam G

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How Firewalls Work?

At their most basic, firewalls work like a filter between your computer/network and the Internet. You can program what you want to get out and what you want to get in. Everything else is not allowed. There are several different methods firewalls use to filter out information, and some are used in combination. These methods work at different layers of a network, which determines how specific the filtering options can be.

Firewalls can be used in a number of ways to add security to your home or business. Large corporations often have very complex firewalls in place to protect their extensive networks. On the outbound side, firewalls can be configured to prevent employees from sending certain types of emails or transmitting sensitive data outside of the network. On the inbound side, firewalls can be programmed to prevent access to certain websites (like social networking sites). Additionally, firewalls can prevent outside computers from accessing computers inside the network. A company might choose to designate a single computer on the network for file sharing and all other computers could be restricted. There is no limit to the variety of configurations that are possible when using firewalls. Extensive configurations typically need to be handle and maintained by highly trained IT specialists, however.

For home use, firewalls work much more simply. The main goal of a personal firewall is to protect your personal computer and private network from malicious mischief. Malware, malicious software, is the primary threat to your home computer. Viruses are often the first type of malware that comes to mind. A virus can be transmitted to your computer through email or over the Internet and can quickly cause a lot of damage to your files. Other malware includes Trojan horse programs and spyware. These programs are usually designed to acquire your personal information for the purposes of identity theft of some kind. There are two ways a firewall can prevent this from happening. It can allow all traffic to pass through except data that meets a predetermined set of criteria, or it can prohibit all traffic unless it meets a predetermined set of criteria.

Comodo Firewall Pro uses the latter way to prevent malware from installing on your computer. This Free Firewall Software, from a leading global security solutions provider and certification authority, use the patent pending “Clean PC Mode” to prohibit any applications from being installed on your computer unless it meets one of two criteria. Those criteria are a) the user gives permission for the installation and b) the application is on an extensive list of approved applications provided by Comodo. With this feature, you don’t have to worry about unauthorized programs installing on your computer without your knowledge.

Comodo Firewall Pro is rated as Top Firewall recommended for both beginners and advanced users. It has a number of unique features including “Defense +,” an advanced Host Intrusion Prevention system (HIPS), which prevents changes to critical system resources. This software is highly customizable, so that you can adjust it to suit your specific needs.

Written by Vijayanand

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Best Free Firewall Software

You don’t have to spend a fortune to protect your home or business network from hacker intrusions. Comodo Firewall Pro is a free firewall software program that offers all of the security features of expensive and best firewall programs and then some. Comodo Firewall Pro provides complete protection from a variety of malware (malicious software) programs including spyware, Trojan horses, viruses, worms and more.

Unlike many other types of free firewall software, Comodo Firewall Pro works proactively to prevent malware from ever installing on your computer. Many other programs only work after the fact to discover malware that has already been installed on your computer. Between the time that the malware is discovered and you can purge it from your system, however, significant damage can be done. A savvy hacker can gain access to your sensitive information in very little time. The only way to be completely protected from such damage is to prevent such malicious software from ever gaining access to your computer.

Comodo Firewall Pro uses the patent pending “Clean PC Mode” to register your existing applications as safe. From then on, it only allows applications that either you specifically allow or are listed in Comodo’s “White List Database” of trusted applications to be installed on your computer. That database contains over 1 million applications and continues to grow. The Clean PC Mode prevents virtually all types of malware from being installed on your computer and keeps your personal information safe from prying eyes.

This Free Firewall Software program also boasts a suite of other valuable features including on of the most advanced Host Intrusion Prevention Systems (HIPS) available. This system, called “Defense +” prevents all levels of intrusion into your computer system including unauthorized changes made to your operating system files and registry entries. Complemented by an intuitive user interface and highly customizable configurations, Comodo Firewall Pro is easily one of the best firewalls on the market.

Comodo Firewall Pro is completely free with no license fees ever. Comodo can afford to provide this powerful software to consumers at no charge because Comodo’s main revenue comes from providing SSL certificates (proof of web authentication) to web businesses. Providing free firewall software is Comodo’s way of increasing the customer pool for the businesses it serves. Customers who are more confident in the security of their networks are more likely to shop online, which will in turn create more business that require web authentication. Essentially, Comodo provides one of the best firewalls available for free as an incentive for consumers to participate more in e-commerce.

While the Comodo Firewall Pro software is a complete Firewall solution, you can upgrade to Comodo Firewall Pro Plus for installation and configuration by Comodo security experts for a small fee. In addition, Comodo also offers other free desktop security solutions. If you take the time to download and install these simple preventative applications, you can rest easy that the next time you surf the Internet, no one else is watching.

Written by Vijayanand

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Network Security: Firewalls

What is the purpose of a Firewall?

Firewalls are absolutely vital for keeping network security in force. The firewall stops and controls the traffic that comes between your network and the different sites you go to. A firewall is a constituent of a company's network protection, and it acts to keep in force the network security policy. It can log inter-network activity with efficiency. It can also reduce a network's vulnerability. Whenever an organization is connected to the Internet but is not using a firewall, any host on the network has direct access to all resources on the internet. If you don't have a firewall, every host online can attack every host in your network.

What is a Firewall Incapable of Doing?

Firewalls can't always detect malicious data. For the most part they cannot offer any protection against an attack from inside, although they may log network activity should the criminal use the Internet gateway. A connection that doesn't go through a firewall cannot be protected by a firewall. To put it another way, if you connect directly to the internet via modem, there is no way the network firewall can protect you. Some firewalls cannot protect from viruses. Firewalls also cannot totally protect against previously unknown attacks; while a simple firewall provides little protection against computer viruses.

Firewall User Authentication or Verification

You establish a claimed identity's validity via user authentication. The use of a password and user name can provide this authentication; however, it is not really strong authentication. When you use a public connection, for example if you have a connection to the Internet that is not encrypted, your user name and password can easily be copied by other people and replayed. Powerful user authentication makes use of cryptography, for example SSL certificates. A certificate of this sort can prevent "replay attacks" from occurring. A replay attack happens when a user name and password are captured and used again to gain unauthorized access.

Firewall-to-firewall encryption

A connection that is encrypted is sometimes called a VPN, or Virtual Private Network. Cryptography makes this more or less private. Of course it isn't really private. The information may be private but it is sent on a public network -- the Internet. While VPNs were available before firewalls were, they became more common when they began running on firewalls. Today, most firewall vendors offer a VPN option.

Additional Purposes of Firewalls

* Increasingly, firewalls are being used for purposes of content filtration. Virus scanning is a common addition to firewalls in this area as well. Though this may be a waste of resources, because filtering for viruses needs to be carried out by every computer since information might be transmitted to these computers via routes besides through the firewall itself - for example, via separate disks.
* URL Screening: Firewall regulated accessibility to the internet as well as content filtering of both files and messages appears to be a practical extension of a firewall. The drawback of utilizing a firewall for URL or content filtering is minimized performance.
* To restrict the size of network space that any single user can occupy, or restrict the amount of the network's bandwidth that may be utilized for given purposes.

Written by Stephen Grisham Sr.

Read more: http://www.articlesbase.com/security-articles/network-security-firewalls-810920.html

Juniper Networks

Juniper Networks, Inc. (NYSE:JNPR) is an information technology and computer networking products multinational company, founded in 1996. It is headquartered in Sunnyvale, California, USA. The company designs and sells high-performance Internet Protocol network products and services. Juniper's main products include T-series, M-series, E-series, MX-series, and J-series families of routers, EX-series Ethernet switches and SRX-series security products. JUNOS , Juniper's network operating system runs on most of the Juniper products. In 2009, Juniper made its debut on Fortune Magazine's 100 Best Companies to Work for Juniper ranked 4 in Fortune Magazine's World's Most Admired Companies list in Networking Communications category in 2009.

Products

Network Operating Systems

JUNOS is the Operating System that runs on most of Juniper's networking equipment.[37] It is Juniper's single in-house network operating system spanning routing, switching and security platforms on its router products. Juniper JUNOS was the first commercially available full-fledged modular OS with full memory protection available on the routing products, which greatly impacted competitive landscape. Initially, the biggest competitor of JUNOS was Cisco Systems's IOS, but now JUNOS mainly competes against other modular systems, such as Cisco IOS-XR and Alcatel-Lucent SR-OS. JUNOS features both vertical and horizontal modularity, and provides API for third-party applications (known as "JUNOS Space"). Although JUNOS was originally derived from FreeBSD, subsequent product development resulted in major kernel and infrastructure improvements (like In-Service Software Upgrade and real-time packet forwarding plane).

Router Products

M40 of M-series was the first product by Juniper Networks, which was released in 1998. The M40 was the first of its kind product, capable of forwarding packets in entirely silicon, without support from the general-purpose CPUs. This was achieved by using a proprietary chipset codenamed "ABC". The chipset consisted of three ASIC types, "A", for high-speed switching, "B" for L2 processing and memory interface and "C" for L3 services, together forming a packet processing engine (PFE). The PFE also included shared packet memory, a single packet forwarding table, and a one-write, one-read architecture.The entire PFE was capable of forwarding at 40 Mpps, a capacity more than 100 times faster than that of any other available router architectures at that time. Many features of M40 (such as separation of control and forwarding plane and modular OS) has formed the industry standard.

* E-series routers are broadband edge routers. The E series was developed by Unisphere, which Juniper acquired in 2002.

The E series routers run the JUNOSe operating system inherited from acquisition of Unisphere.
* J-Series routers are small customer-premises equipment or enterprise routers.
* M-series routers are multiservice edge routers.
* T-series routers are large core routers.
* MX-series routers are Ethernet services routers.

The J, M, T, and MX series routers run JUNOS.

While the E, M, and T series are all high speed ASIC based devices capable of terminating multiple broadband optical connections, the J series forwarding plane is partially software-driven. Capable of terminating DS3 (45 Mbit/s) and slower lines, the J-series product line heavily draws from the modern multicore CPU technology and is aimed at corporate branch offices and service provider premise equipment. In the fall of 2006, the J series got a refresh of the modular products offering significantly increased performance to meet updated WAN technologies requirements. In the same announcement Juniper shared that it would co-operate with Avaya to integrate Avaya IP Telephony in the J series of routers.

Switch Products

* EX Series Switches - Juniper's switch line-up was introduced in 2008 and runs JUNOS. Available in fixed and modular form factors with full or partial PoE functionality, EX family represents Juniper's bid for enterprise and cost-optimized Ethernet markets, augmenting the "One Operating System" strategy and generating $74 million in revenue during 4Q2009.
Security Products

# SRX Series Dynamic Service Gateways. A series of security services devices running JUNOS. Ranging from branch-office models to the SRX 5800, the world's fastest firewall. Combines Security (S) Routing (R) and Switching (X) in one chassis. Security features include the full UTM functionality previously found on ScreenOS, including web filtering, IDP and antivirus.

# NetScreen SSG Series and ISG Series firewalls - The SSG Series runs the ScreenOS operating system and provide firewall, anti-virus, intrusion protection and VPN services. Added to the product lineup after purchase of the NetScreen Technologies company, they do not run the JUNOS that the higher-end products do. Instead they run ScreenOS which provides a sophisticated mid-tier level of service. While capable of complex configurations, these are targeted mostly to small and medium sized business. The ISG series is capable of more advanced IDP and virtualisation functionality and higher performance.

# Secure Access SSL VPN gateways — Secure Access products provide SSL based VPN services to remote users without specialized clients.

# NSM Network and Security Manager (formerly Netscreen Security Manager, renamed Aug. 2008) - This is an enterprise-wide management tool for Juniper devices which allows for a single-point bastion control over multiple Juniper devices as well as serving as a syslog host & configuration backup repository, as well as the NSMXpress appliance that furthermore provides distributed hierarchical features.

# IDP Intrusion detection and prevention appliances

Source from Wikipedia - http://en.wikipedia.org/wiki/Juniper_Networks

Juniper J-Series, Juniper Router Review

Juniper J-Series The Juniper J-Series Routers range consists of the following models:

* Juniper J-Series J2300
* Juniper J-Series J2320
* Juniper J-Series J2350
* Juniper J-Series J4350

The Juniper J-Series routers offer the most advanced set of security features to protect from outside threats. Even while under attacks the Juniper J-Series routers gives staff complete control through the console port, allowing users to constantly add new filters and policies.

Computrad has been established since 1992 and since our inception we have been working with our enterprise clients as a trusted advisor to help shape their network infrastructure. Our current clients have had enormous benefits from this approach with organisations ranging from the US Federal Government for which we are one of Europe's only approved networking solution provider to smaller SME's. Our client base includes the US Navy, US Army, US Airforce and many other bluechip enterprises included within the FTSE 100.

The Juniper J-Series offers unmatched value as no licensing fees are required for advanced services such as IPv6, MPLs, IPSec and stateful firewall.
The Fault-protected and modular design of the JUNOS operating system delivers high levels of stability and resiliency unlike traditional routers where any small bug can quickly spread into a bigger problem. Juniper J-series Services Routers are available in three models of increasing bandwidth

Juniper Networks is an information technology company based in Sunnyvale, California and founded in 1996. The company designs and sells Internet Protocol network products and services. Juniper also partners with Nokia Siemens Networks, Ericsson, and Alcatel-Lucent to provide IP/MPLS network solutions to customers. Juniper's products include T-series, M-series, E-series, MX-series, and J-series families of routers, EX-series Ethernet switches, WX-series WAN optimization devices, and SRC Session and Resource Control appliances. All J-series Services Routers run on the JUNOS software and are reachable through the J-Web browser interface on the JUNOS command-line interface

Juniper J2300

The Juniper J2300 comes with a Smaller chassis (1 U) with a nonredundant AC power supply, 256 MB to 512 MB of RAM, and a Universal Serial Bus (USB) port for external storage. Three available versions have two Fast Ethernet LAN interfaces plus one of the following sets of fixed WAN interfaces: This can handle up to 4 Mbps 20,000 to 50,000 packets per second (pps)

The Juniper J-Series routers include the most advanced set of features for protecting routers from outside threats, the JUNOS software offers high levels of resiliency, stability and uptime.

Juniper J4300

Larger chassis (2 U) with a nonredundant AC power supply, 256 MB to 512 MB of memory, and a Universal Serial Bus (USB) port for external storage. In addition to two Fast Ethernet LAN interfaces, this model has six open slots for the following WAN Physical Interface Modules (PIMs):Up to 16 Mbps 50,000 to 80,000 pps

Juniper J6300

Larger chassis (2 U) with a redundant AC power supply, 256 MB to 1 GB of memory, and a Universal Serial Bus (USB) port for external storage. In addition to two Fast Ethernet LAN interfaces, this model has six open slots for the following WAN Physical Interface Modules (PIMs): Up to 90 Mbps 100,000 to 150,000 pps.

Written by Parmy Stevens

Article Source: http://EzineArticles.com/?expert=Parmy_Stevens

Security EQ, New site offering deep discounts on security products; Firewalls, Anti-virus, Intrusion Detection and Prevention

Today marked the debut of securityeq.com, a new shopping site for network security products. This is a site for shoppers looking for industry leading products at great discounts. Shoppers can sort through the products from companies such as Juniper Networks, Fortinet, Blue Coat, TippingPoint, TopLayer, Bradford Networks, ESET, Kaspersky, and more through an addictively easy web experience. The site gives consumers the ability to compare prices not typically posted to the public so they can avoid the harassing sales person and empowers the shopper to make informed, economical choices.

With security breaches making headlines daily and the risk of compromise and data loss threatening IT infrastructures and data assets, securityeq.com brings together the technical and budgetary information at the shopper’s fingertips. With the strongest security products around, securityeq.com has the right solution at the right prices. Backed by their parent company founded in 1989, securityeq.com is an authorized reseller of the most complete line of network security products available anywhere. Their certified solution consultants and experienced engineers are ready to assist with product and pricing questions.

Some of the hottest products include the new Juniper SRX series of firewalls. Gartner has placed the new SRX Series as a Leader in the magic quadrant for Enterprise Firewalls. ESET recently released 4.0 of their flagship product, NOD32. With the most VirusBulletin 100 ratings of any other antivirus manufacturer around, this product will add the protection required on Workstations and Servers to combat today’s ever elusive malware. Visit them today at http:www.securityeq.com for all your security needs.

Written by Juan

Read more: http://www.articlesbase.com/security-articles/security-eq-new-site-offering-deep-discounts-on-security-products-firewalls-antivirus-intrusion-detection-and-prevention-1142038.html

The Need For Basic Internet Security

With the number of businesses that are connecting to the Internet and using cable modems, DSL lines, and T1 circuits, the need to secure their connections is not only necessary but also simply due diligence on the part of the company. Businesses rely on their Internet connection to send credit card payments through, to run their VoIP phones, and even to host their webpage. If Internet connectivity is disrupted then business can not operate as usual.

In order to insure that the connection to the Internet is secure there are some basic methods that can be utilized that are fairly cheap and will more than pay for themselves with the increased security and uptime of the Internet connection. A business does not need to make sure their network is as tight as an Army base; they just need to make sure they are more secure than others so that attackers will target the easier sites and leave theirs alone.

The very first thing that needs to be put in place at each and every Internet connection is a firewall. All businesses should have a hardware firewall that protects and separates their business from the Internet. A cable modem with built-in firewall may be adequate for a household, but a business should look at a commercially available firewall such as a Juniper firewall 5 series, a SonicWall firewall, or even a Cisco SOHO. These are all inexpensive and are easy to manage and configure. A firewall is the first step of protection that keeps out those who do not need to have access to the internal business network. Essentially installing a firewall is similar to installing locks on a house. Only those with the proper keys can access the house just as only those who have been specifically granted access can access the network behind the firewall.

Once a firewall has been installed, configured, and is working properly a business is going to want to look at the computers themselves. There are two things that need to be done on all the machines that will insure that the machines stay up and operational longer than those that are left unprotected. The two things are necessary are: patching the machines for the latest updates for both the operating system (OS) and the applications, and then installing antivirus software.

The patching of the systems will insure that the vulnerabilities that virus/worm writers are using to exploit and take over machines will not be effective against a patched machine. By patching the machine the entry door is closed and the worm will not be able to gain access. Application patches update their tools and software being used on the machine. With the latest patches this too will make it more difficult for attackers to exploit machines and gain entry to them.

Antivirus software is an absolute necessity on machines. System administrators and users can become annoyed with it as it is a resource hog but that is because the software is tasked with protecting the system and they continually scan the system for infections. When used in "real-time" mode each file is scanned before downloading, uploading, or being saved to the disk. This is important when reading emails, sending emails, or even surfing on the Internet.

There are many other steps that can be taken to give a business a stricter security posture. However, by taking the above steps a business can rest assure that they have taken the due diligence and installed the most basic security measures in their business that will make it difficult for an attacker to gain unauthorized access to a business's network.

Article Source: http://EzineArticles.com/?expert=Benjamin_Corll

Written by Benjamin corll