What is system hardening.
Linux server security hardening.
Secure bios and disable usb booting.
There are many aspects to linux security including linux system hardening auditing and compliance.
Enable and configure firewall.
Read more in the article below which was originally published here on networkworld.
Think twice carefully before removing if your system is attached to internet and accessed by the public then think some more on it.
Don t fall for this assumption and open yourself up to a potentially costly security breach.
Maintain user accounts and password policy.
Keep kernel and packages up to date.
Disable remote root access.
All data transmitted over a network is open to monitoring.
You should install aide software before connecting the system to a network if possible.
Linux hardening tools are typically used for configuration audit and system hardening.
Disable root console access.
So it is wise to filter out unwanted network traffic or better only allow wanted traffic.
If you are using a cloud server then your neighbor systems might not be as friendly as the ones in your own home network.
Hardening your linux server can be done in 15 steps.
This could be the removal of an existing system service or uninstall some software components.
Security enhanced linux selinux is a compulsory access control security mechanism provided in the kernel.
Patch the operating system.
Most people assume that linux is already secure and that s a false assumption.
Linux server hardening security tips and checklist.
To improve the security level of a system we take different types of measures.
The following instructions assume that you are using centos rhel or ubuntu debian based linux distribution.
When hardening a linux system one of the first steps is to look at the network traffic that comes in and goes out.
For greater linux server security hardening it s recommended that you use integrity checking software before you take a system into a production environment online.
Linux security from the inside internal hardening generally lends itself to applications where users are allowed to execute programs within the system such as a shared hosting environment.
Disabling selinux means removing security mechanism from the system.
Patch third party applications.
Avoid legacy communication services.
Here are 23 security tips to guide you through hardening your linux operating system.
Users for these tools include auditors security professionals system administrators.
