Linux Server Security Hardening

There are many aspects to linux security including linux system hardening auditing and compliance.

Linux server security hardening. Avoid legacy communication services. Maintain user accounts and password policy. Hardening your linux server can be done in 15 steps. Patch third party applications.

Encrypt data communication for linux server. To improve the security level of a system we take different types of measures. Disable remote root access. If you are using a cloud server then your neighbor systems might not be as friendly as the ones in your own home network.

The following instructions assume that you are using centos rhel or ubuntu debian based linux distribution. Enable and configure firewall. All data transmitted over a network is open to monitoring. Disabling selinux means removing security mechanism from the system.

So it is wise to filter out unwanted network traffic or better only allow wanted traffic. Most people assume that linux is already secure and that s a false assumption. Patch the operating system. Security enhanced linux selinux is a compulsory access control security mechanism provided in the kernel.

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. Users for these tools include auditors security professionals system administrators. Think twice carefully before removing if your system is attached to internet and accessed by the public then think some more on it. Read more in the article below which was originally published here on networkworld.

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. Encrypt transmitted data whenever possible with password or using keys certificates. Secure bios and disable usb booting. Here are 23 security tips to guide you through hardening your linux operating system.

Linux hardening tools are typically used for configuration audit and system hardening. Linux server hardening security tips and checklist. What is system hardening. Keep kernel and packages up to date.

This could be the removal of an existing system service or uninstall some software components. You should install aide software before connecting the system to a network if possible. Don t fall for this assumption and open yourself up to a potentially costly security breach.