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Harden Network Using SYSCTL

Linux is a pretty secure OS but if your running a server you might want to harden its security. I have done a few posts about securing your linux installation and this page will show how to configure you sysctl.conf file so that your system is less susceptible to attacks
Backup And Open Your sysctl.conf
When the file opens on screen use the following as a guide. Change any entires
that are in your sysctl.conf to the following. Some of the following you may
not have in your file. If they are not in your file add them. If for some reason
you have problem with your system after these updates you can restore your
origional sysctl.conf with "sudo cp /etc/sysctl.conf_BU /etc/sysctl.conf" and rebooting
Once you have the edits made save the file and exit the text editor.
Comit The System Changes