Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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I need to know how to turn off certain ports off completely, for example, i went into the /etc/services file and commented our certain ports like telnet, smtp and a few others and rebooted but when I had my firewall tested, it said the ports were open, I tried telneting from another machine to my firewall and I get connection refused, so what i dont understand, why is the test saying telnet port is open if i commented it out from /etc/services file. This is what I did:
if you can't connect to with telnet yourself and get a connection refused sort of message your probably save. Download nmap to do your own port scan on yourself.
Thanks for the info Scotty, I ran nmap and for some reason i still have sunrpc, smtp, auth, and a few others opened even though i commented them out in /etc/services file. Is there another file that opens them?
use ntsysv to turn off those services. or go to /etc/rc.d/rc*.d (whatever runlevel your in) and rename the S**whatever** to .S**whatever**, your simply hiding the files from the init scripts. Reboot.
If you are going to rename the files in the /etc/rc.d/rc#.d directories, the better way to do it is rename from S##file to K##file. The K files are ignored, while the S files are parsed at startup and shutdown of the system.
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