====== Sysctl ======

sysctl is an interface that allows you to make changes to a running Linux kernel. With /etc/sysctl.conf you can configure various Linux networking and system settings such as:

  * Limit network-transmitted configuration for IPv4
  * Limit network-transmitted configuration for IPv6
  * Turn on execshield protection
  * Prevent against the common ‘syn flood attack’
  * Turn on source IP address verification
  * Prevents a cracker from using a spoofing attack against the IP address of the server.
  * Logs several types of suspicious packets, such as spoofed packets, source-routed packets, and redirects.

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[[Ubuntu:Sysctl:Harden the system using sysctl|Harden the system using sysctl]]

[[Ubuntu:Sysctl:View sysctl values|View sysctl values]]