из под Центоса и РХ 5.5 (3 разных машины) делаю скан портов (iptables остановленны на всех без исключения хостах)
# nmap 192.168.1.15
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2010-07-14 16:29 VLAST
Interesting ports on 192.168.1.15:
Not shown: 1674 closed ports
PORT STATE SERVICE
22/tcp open ssh
111/tcp open rpcbind
855/tcp open unknown
5801/tcp open vnc-http-1
5901/tcp open vnc-1
6001/tcp open X11:1
MAC Address: 00:15:17:E6:AA:B0 (Intel Corporate)
Nmap finished: 1 IP address (1 host up) scanned in 1.354 seconds
# nmap 192.168.1.15
Starting Nmap 5.00 ( http://nmap.org ) at 2010-07-14 16:27 VLAST
Interesting ports on 192.168.1.15:
Not shown: 993 closed ports
PORT STATE SERVICE
22/tcp open ssh
111/tcp open rpcbind
5801/tcp open vnc-http-1
5901/tcp open vnc-1
6001/tcp open X11:1
8084/tcp open unknown
11111/tcp open unknown
MAC Address: 00:15:17:E6:AA:B0 (Intel Corporate)
Nmap done: 1 IP address (1 host up) scanned in 0.26 seconds