Linux Server Security Hardening

Patch third party applications.

Linux server security hardening.

Here are 23 security tips to guide you through hardening your linux operating system. Disable root console access. So it is wise to filter out unwanted network traffic or better only allow wanted traffic. Users for these tools include auditors security professionals system administrators.

Security enhanced linux selinux is a compulsory access control security mechanism provided in the kernel. Linux hardening security tips for professionals. There are many aspects to linux security including linux system hardening auditing and compliance. Most people assume that linux is already secure and that s a false assumption.

What is system hardening. Linux server hardening security tips and checklist. Disabling selinux means removing security mechanism from the system. Enable and configure firewall.

This could be the removal of an existing system service or uninstall some software components. Encrypt data communication for linux server. The following instructions assume that you are using centos rhel or ubuntu debian based linux distribution. To improve the security level of a system we take different types of measures.

Don t fall for this assumption and open yourself up to a potentially costly security breach. All data transmitted over a network is open to monitoring. You should install aide software before connecting the system to a network if possible. If you are using a cloud server then your neighbor systems might not be as friendly as the ones in your own home network.

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. Maintain user accounts and password policy. Patch the operating system. 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.

Linux hardening tools are typically used for configuration audit and system hardening. Secure bios and disable usb booting. Read more in the article below which was originally published here on networkworld. When hardening a linux system one of the first steps is to look at the network traffic that comes in and goes out.

Encrypt transmitted data whenever possible with password or using keys certificates. Hardening your linux server can be done in 15 steps. Keep kernel and packages up to date.