open ports... how do i close them?

prodigius · 01-17-2002, 07:45 PM

open ports... how do i close them?

on nmap localhost i get the following:

Interesting ports on localhost.localdomain (127.0.0.1):
(The 1541 ports scanned but not shown below are in state: closed)
Port State Service
53/tcp open domain
80/tcp open http
111/tcp open sunrpc
139/tcp open netbios-ssn
631/tcp open cups
901/tcp open samba-swat
953/tcp open rndc
6000/tcp open X11

how do i shut these off?

at http://grc.com i only show the netbios one open

help! before i become another statistic!

theFuzzyOne · 01-17-2002, 08:46 PM

there have been many discussions here about this.. search for ports or iptables or firewall in this forum.

keep in mind that if you nmap you pc from itself.. it has full access (as it should be). scan from another networked machine - that's what shield's up does.

you can close port 80 by diabling your web server (remove it from system services that start on boot). you can close a couple more by disabling the samba server. You should check your inetd/xinetd for more things you can disable.

anoop_chandran · 01-18-2002, 02:07 AM

HI,

i found this:

security.norton.com/default.asp?langid=us&venid=sym

they "say" they give a thorough check ,
my results

1.Network Vulnerability Scan
At Risk:
open ports:
telnet,http,ident/authentication
stealth:
icmp
closd:
ftp,smtp,pop etc
2.NetBIOS Availability Scan
Safe

3.Active Trojan Horse Scan
Safe

has anyone used it before?check it out...

bye

slackdaddy · 01-18-2002, 08:35 AM

If your running ipchains or iptables what port localhost shows open are of little concern.

If you want ports closed vi /etc/services or /etc/xinitd.conf