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sysctl -p

How Do I Disable The Ping Response On Linux?

by lifeLinux on January 4, 2012

Sometimes you may want to disable ping response for many reasons, may be for a security reason… This article explains how do I disable the ping response on Linux ?


How To Enable IP Forwarding On CentOS / RedHat

by lifeLinux on May 11, 2011

By default, Linux distribution such as Redhat, CentOS, and Fedora will have IP Forwarding disabled. The need to forward IP packets from one source to another using linux as the default gateway or linux router, IP forwarding should be enabled from this considerations. There are several techniques to enable IP Forwarding.


How to disable ICMP echo responses in Linux

by lifeLinux on May 2, 2011

Many malicious attacks begin with a ping scan. Disabling ICMP echo requests prevents your system’s discovery with a ping. Disable ICMP echo responses temporarily You can temporarily disable the ICMP using the following method but this setting will be erased after the reboot. [email protected]:~# echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all