By using personal security programs or personal firewalls, you can always keep a check on the incoming and outgoing traffic in the network. A firewall provides security to your network in terms of letting you access only relevant websites or servers that are not infected. Firewalls can be hardware devices or programs that act as a filter to the incoming and outgoing information.   To control the quality and quantity of traffic in the network, a firewall makes use of these methods:

• Proxy service- In this method, the Internet information requested by the clients is retrieved by the firewall and after scrutinizing it, the data is sent to the client nodes and vice versa.
• Stateful inspection – In this method, when the information is transferred from the firewall to the Internet, certain keywords or characteristics are recorded for confirmation. When the request flows into the firewall, the keywords or characteristics are compared. If they match, only then is the outside data allowed to be accessed by the clients in a network or else it is discarded.  
• Packet filtering- Data is transferred in terms of packets which is analyzed against a set of filters.

Despite their filtering features and new methodology to secure data transmission, your firewall can be susceptible to:  

• Incompatibility with other softwares
• Corruption/crashes
• Lock ups
• Memory leaks
• Operating system incompatibility
• Bugs
• Prone to virus attack through TCP/IP stacks etc

For that matter any software or hardware has both pros and cons. Some advantages that a firewall fetches are:  

• Prevents programs that can utilize your Internet connection
• Give you alerts if any malware activity is trying to set up on your PC
• Avoids intruder from gaining access to your PC
• Hides your PC from the other users who are attempting to hack your computer

Configuring your firewall is always a good practice owing to the security and protection that it gives. Using brands such as Zone Alarm, Tiny Personal Firewall, Sygate, or Conseal Firewall can ensure that your network is well protected. If you are using Microsoft Windows Vista or XP, your operating system already comprises of an in-built firewall and thus you do not require another third party tool. However, while some firewalls can be installed very instantly, others will need technical assistance.

Ask PC Experts can help you in installing powerful firewall and configure their settings such that they do not eat much of your computer’s memory, block Internet access, corrupt your web browser etc.  Their certified technicians can assist you in dealing with your security issues, browser issues, internet connectivity errors and installation of security programs. They offer annual and incidental plans for individuals and small businesses.

The annual plans comprise unlimited access to services throughout the year while incidental plans are meant for resolving single problem at a time! For individuals their annual plan costs only $69.95 and for a network of five computers, the yearly plan is for just $169.95 along with advanced system optimization and protection throughout the year! To check out their exciting offers and flexi-plans that can suit your needs, register online at their website or call their tech support at 1-888-889-335.