Top 10 Firewall Tips
What is a Firewall? In simple terms, a firewall is a set of filters and rules (more like a virtual wall) that guards your computer from other computers on the internet.
Firewalls monitor the data that is sent to and from the network.
You can either have a firewall installed as software or have it as a separate hardware unit.
Firewalls provide an improved and advanced form of security. Here are a few helpful tips to manage firewalls efficiently:
1. Keep your firewall always turned ON
The first obvious step is to keep the firewall protection always ‘ON’.
If you are doing some specific work like installing a software or troubleshooting, you may temporarily disable your firewall but this practice is not always recommended because it may end up disastrous in case malware are involved.
2. Firewall software/hardware should be secluded
You should protect the firewall from direct attack especially direct attacks when your firewall is a hardware unit.
It means you should not allow communication flow between your firewall and unauthorized sources.
3. Keep your OS updated
Updating to the latest Operating System software version for your firewall is a must.
4. Well-define your ‘rule base’
Keep the rule base simple.
When a packet reaches the firewall it checks against the rule base.
So it is best to place the most accessed rule at the top so that the firewall need not match against all the rules in the rule base.
This would in turn reduce the load on your firewall.
5. Deny the suspicious requests to circumvent your firewall
Deny, deny and deny.
This is a rule that should be followed when you are in doubt about the authenticity of the request.
You can always allow the blocked connection later when needed or authenticated.
6. Lock down VPN access
7. Run firewall vulnerability scans regularly
Instill the practice of testing and auditing your firewall for vulnerabilities.
This will help you update your firewall protection as and when required.
8. Block and entire country if under attack
Easily block all attacks from a specific country like China
9. Update Firewall regularly
It is necessary that you keep your firewall software updated to be certain that you have not left any loopholes that would compromise your safety.
Out-dated security softwares are almost useless because attacks on security are progressing and evolving on daily-basis.
10. Monitor user access to firewall settings
In corporate networks, joint firewalls are commonly used to provide first line of defense to the network but the network owner should keep in check that who has access to firewall’s settings and what type of access it is, as you do not want someone changing the configuration to make them vulnerable intentionally or unintentionally.
With these simple tips you should be able to utilize your firewall easily and effectively. Safe surfing!
What is a Firewall?
A firewall is a security measure that ensures a PC or a PC system from unapproved access.
Sadly, there are a ton of shrewd programmers working industriously to get to PC data in today's PC world.
While already, the objectives were extensive establishments, today's programmers search out a wide range of individual data, including information from regular home PC clients.
A firewall can be programming, equipment, or a blend of both.
A decent firewall will keep programmers from getting to a PC.
It will likewise keep data from being conveyed from your PC without your insight. It will keep individual data safe.
Firewalls don't anticipate infection assaults however in a few circumstances they can prevent infections from sending data from a tainted PC.
Firewall for Broadband Connection
In the event that you utilize a broadband association with the Internet like DSL or link, you ought to unquestionably get a firewall.
Such broadband associations are dependably on shared systems.
It is simpler for an interloper to break into your PC in the event that you are utilizing one of these associations.
So it is fundamental to have a firewall on a PC that uses DSL or link to unite with the Internet.
(Note: If you utilize a customary phone line and you tap on a symbol on your PC desktop to start your Internet association, then you have a dial-up association.)
This is on the grounds that there are projects like spyware and adware that are security attacking projects that piggyback on other programming that you download from the Internet.
A decent firewall will caution you when an exchange of data that you have not started tries to happen, keeping spyware and adware from finishing their insidious assignments.
Do you dislike spam? Well, some spammers are currently hijacking individual computers and using them to send out some of that aggravating spam.
This can be done completely without your knowledge.
This little ploy covers the tracks of the spammer and makes it easier for him to get his message out.
A good firewall will alert you when something like this happens so you can keep your computer protected.
You will, however, have to check before you obtain the firewall software to make sure that it is this type of two-directional firewall.
Some firewalls only alert you when some unauthorized person is trying to enter your computer to access information.
These one-directional firewalls do not check for unauthorized information that may be leaving your computer.