This option will alert you to all bad error messages in your network.
Add the above commands to the
/etc/rc.d/rc.local script file and you'll not have to type it again the next time you
reboot your system.
Edit the /etc/sysctl.conf file and add the following line:
# Enable bad error message Protection
net.ipv4.icmp_ignore_bogus_error_responses = 1
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You must restart your network for the change to take effect. The command to manually restart the network is the following:
[[email protected]] /# /etc/rc.d/init.d/network restart
Setting network parameters [ OK ]
Bringing up interface lo [ OK ]
Bringing up interface eth0 [ OK ]
Bringing up interface eth1 [ OK ]
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