Security Audit for Linux
When it comes to networking in computers, it is essential that you ensure the integrity of your networking. You don’t want confidential information to into bad hand or unintended recipients. While using Linux, it is important that you have a security audit system which will ensure that your system is secure and that there are no chances of security breaches.
One of the main security audits which are critical for Linux users is testing the technical mechanisms used in the security of the host and the network while working. The basic reasons for checking on this security of both the host and the network include:
Detection of Security Breach
Nothing is ever guaranteed, and even though Linux is one of the most secure OS, you need to carry out an audit which can be able to detect chances of hacking into the network. Basically you will be checking on the integrity of the both system, such as monitoring the log files and also you will need to implement an intrusion system which will be able to detect and report back immediately if there is an unauthorized person who wants to hack into the system.
While reporting cases of breach, the system should also have a capability of restoring files that had been backed up but got lost during the attack for easier access.
Prevention of Future Attacks
A security system comes in hand in helping to prevent any attack. If you have suffered an attack before, it is paramount that you carry out an audit to detect what could have induced the attack to happen and then focus on implementing a security system which prevents further attacks in the future.
This may include enforcing stronger passwords, having a clear file authorization mechanism as well as blocking potential threats, either temporarily or permanently.
Implementing Security Tests
First you need to have a cheat sheet which details the entire network, network devices such as routers etc, host as well as the internet connection that you are using in networking. Make sure that you are able to ascertain how each of these components link to one another and which are authorized to access certain files and which are not.
Testing the Host
You will then need to test the host(s). If you have several hosts you will need to test each host individually. Determine which hosts are important such as those that contain corporate database and then check them according to the level of their importance. You will be checking for system of files and determine if an unauthorized parson tried logging in as well as the user password and their strength. If there is a password that you feel can be easily compromised, email the user to rest the password. You may as well as determine the password strength that you need each user to create.
Test the Network
The best way to test a network and the connections involved is to try to infringe on the network and hack into its defenses from another system. Your firewall should be able to block such an intrusion and if not, check to ensure that you have configured it properly. Then try to infringe the network again to ensure that all is well.
Then you will have to analyze all the results from the host and network as well as other components in networking that you have tested so that you can determine the areas of vulnerability.