How can I set nic to not respond to ping?
I went to ShieldsUp and only had one port "0" that responded and did so with "closed" which I am assuming is the response to my guess is the ping.
How can I set the nic to not respond to ping?
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steve_v
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Re: How can I set the nic to not respond to ping?
By configuring your firewall of choice to drop ICMP echo requests.
Port 0 has nothing to do with ping. Port 0 is reserved, should never see any traffic at all, and is almost always blocked at your ISP. If it's not, you can use a firewall rule to drop that traffic as well.
Aside, the "stealth" test on GRC is pure paranoia. A closed port will not accept any connections and presents no security risk.
Once is happenstance. Twice is coincidence. Three times is enemy action. Four times is Official GNOME Policy.
Re: How can I set the nic to not respond to ping?
There is a cleaner way to do this.
Set in your /etc/sysctl.conf:
Set in your /etc/sysctl.conf:
Code: Select all
net.ipv4.icmp_echo_ignore_all = 1
net.ipv6.icmp.echo_ignore_all = 1