由 Snoopy 在 12-19-2003 18:41 发表:
转发时端口的问题??
[root@Snooopy opt]# nmap 192.168.206.8
Starting nmap V. 3.00 ( www.insecure.org/nmap/ )
sendto in send_tcp_raw: sendto(3, packet, 40, 0, 192.168.206.8, 16) => Operation not permitted
sendto in send_tcp_raw: sendto(3, packet, 40, 0, 192.168.206.8, 16) => Operation not permitted
sendto in send_tcp_raw: sendto(3, packet, 40, 0, 192.168.206.8, 16) => Operation not permitted
sendto in send_tcp_raw: sendto(3, packet, 40, 0, 192.168.206.8, 16) => Operation not permitted
sendto in send_tcp_raw: sendto(3, packet, 40, 0, 192.168.206.8, 16) => Operation not permitted
sendto in send_tcp_raw: sendto(3, packet, 40, 0, 192.168.206.8, 16) => Operation not permitted
sendto in send_tcp_raw: sendto(3, packet, 40, 0, 192.168.206.8, 16) => Operation not permitted
Interesting ports on (192.168.206.8):
(The 1598 ports scanned but not shown below are in state: closed)
Port State Service
22/tcp open ssh
53/tcp open domain
80/tcp filtered http
Nmap run completed -- 1 IP address (1 host up) scanned in 4 seconds
[root@Snooopy opt]#
为什么80是过滤的 ??
[root@Snooopy opt]# iptables -t nat -A POSTROUTING -d 192.168.206.8 -p tcp --dport 80 -j SNAT --to 192.168.206.6:80
[root@Snooopy opt]# iptables -t nat -A