need to close ports to secure machine

VioLaToR · 05-06-2003, 06:29 AM

After scanning a couple internet servers and seeing they use only 2 or 3 open ports, i scanned my machine and here is the output:

Port State Service
21/tcp open ftp
22/tcp open ssh
25/tcp open smtp
37/tcp open time
79/tcp open finger
111/tcp open sunrpc
113/tcp open auth
515/tcp open printer
587/tcp open submission
6000/tcp open X11

This looks like way too many open ports for me. How do i close them all off except the needed ones.

I use eth0 for internet connection. I use pop3/smtp mail client. no ftp or web server, no shared printer. anything else you need to know before you can help close ports, just let me know.

acid_kewpie · 05-06-2003, 06:31 AM

use a firewall....

Toasti · 05-06-2003, 06:36 AM

stop the deamons

unSpawn · 05-06-2003, 07:03 AM

...and look at the security forums 1st thread on securing your boxen.

nakkaya · 05-06-2003, 04:42 PM

if you dont know iptables use firestarter(look at freshmeat) to close ports and also if you dont use them close the services running.