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How to Secure Your Apache Web Server

Sep 06, 2011, 20:00 (0 Talkback[s])

[ Thanks to Lee Schlesinger for this link. ]

Linux kernel hardening The kernel is the most frequent target for attackers. Having access to the kernel is the easiest way to escalate users' privileges. Depending on the operating system, Apache runs by default as the limited user nobody (on Red Hat-based distributions such as CentOS) or www-data (on Debian-based distros, including Ubuntu). Every attacker's aim is to break out of the limited user and gain root access by exploiting a vulnerability in the kernel.

Patching your kernel with grsecurity ensures that you stay protected even against zero-day vulnerabilities. In addition, Ksplice ensures that you apply all kernel updates on time to minimize security risks.

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