You can use lsof to find the application and other details that's bound to the port.
#lsof -i :21 Did you try connecting to the FTP port just to see the welcome message? On Mon, Jun 8, 2009 at 09:12, Iris Lames<[email protected]> wrote: > Hi, > > I have a squid with ldap auth; dansguardian; sarg and httpd running on > CentOS 5.3. I'm worried when I nmap this server and found out that port 21 > (ftp) is open. I dont install any ftp application. Any ideas what may have > caused it and how could i close it? Please help. > > #nmap myserver > PORT STATE SERVICE > 21/tcp open ftp > 22/tcp filtered ssh > 80/tcp filtered http > 389/tcp filtered ldap > 443/tcp filtered https > 993/tcp filtered imaps > 8080/tcp filtered http-proxy > > #rpm -qa | grep ftp > answer none > > #netstat -nap > [r...@pusit ~]# netstat -aunt | grep LISTEN > tcp 0 0 0.0.0.0:8080 0.0.0.0:* > LISTEN > tcp 0 0 0.0.0.0:3128 0.0.0.0:* > LISTEN > tcp 0 0 :::80 :::* > LISTEN > tcp 0 0 :::22 :::* > LISTEN > tcp 0 0 :::443 :::* > LISTEN > tcp 0 0 :::8443 :::* > LISTEN > > > # chkconfig --list | grep 3:on > crond 0:off 1:off 2:on 3:on 4:on 5:on 6:off > dansguardian 0:off 1:off 2:on 3:on 4:on 5:on 6:off > haldaemon 0:off 1:off 2:off 3:on 4:on 5:on 6:off > httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off > iptables 0:off 1:off 2:on 3:on 4:on 5:on 6:off > kudzu 0:off 1:off 2:off 3:on 4:on 5:on 6:off > lvm2-monitor 0:off 1:on 2:on 3:on 4:on 5:on 6:off > mcstrans 0:off 1:off 2:on 3:on 4:on 5:on 6:off > messagebus 0:off 1:off 2:off 3:on 4:on 5:on 6:off > netfs 0:off 1:off 2:off 3:on 4:on 5:on 6:off > network 0:off 1:off 2:on 3:on 4:on 5:on 6:off > restorecond 0:off 1:off 2:on 3:on 4:on 5:on 6:off > squid 0:off 1:off 2:on 3:on 4:on 5:on 6:off > sshd 0:off 1:off 2:on 3:on 4:on 5:on 6:off > syslog 0:off 1:off 2:on 3:on 4:on 5:on 6:off > > #service xinetd status > xinetd: unrecognized service > > > Please help. > > Thanks. > > -- > Iris > > _________________________________________________ > Philippine Linux Users' Group (PLUG) Mailing List > http://lists.linux.org.ph/mailman/listinfo/plug > Searchable Archives: http://archives.free.net.ph > _________________________________________________ Philippine Linux Users' Group (PLUG) Mailing List http://lists.linux.org.ph/mailman/listinfo/plug Searchable Archives: http://archives.free.net.ph
