Hi,
It's just past 3am and for the past 6 hours I've been
configuring a secondary name server to replace one that just crashed.
My problem appears to be that port 53 is not open for some reason on my
server even though I have this:
[root at tribe etc]# netstat -an | grep ":53 "
tcp 0 0 205.211.154.3:53
0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:53
0.0.0.0:* LISTEN
udp 0 0 205.211.154.3:53 0.0.0.0:*
udp 0 0 127.0.0.1:53 0.0.0.0:*
udp 0 0 205.211.154.3:53 0.0.0.0:*
udp 0 0 127.0.0.1:53 0.0.0.0:*
udp 0 0 205.211.154.3:53 0.0.0.0:*
udp 0 0 127.0.0.1:53 0.0.0.0:*
udp 0 0 205.211.154.3:53 0.0.0.0:*
udp 0 0 127.0.0.1:53 0.0.0.0:*
udp 0 0 205.211.154.3:53 0.0.0.0:*
udp 0 0 127.0.0.1:53 0.0.0.0:*
udp 0 0 205.211.154.3:53 0.0.0.0:*
udp 0 0 127.0.0.1:53 0.0.0.0:*
But with a test from
http://www.yougetsignal.com/tools/open-ports/
it says port 53 is closed.
I'm using CentOS 6.0 and BIND 9.7.3-P3-RedHat-9.7.3-8.P3.el6_2.2
I'm not using iptables (well I didn't configure any)
[root at tribe log]# iptables --line-numbers -n -L
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state
RELATED,ESTABLISHED
2 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
4 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state
NEW tcp dpt:22
5 REJECT all -- 0.0.0.0/0 0.0.0.0/0
reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 REJECT all -- 0.0.0.0/0 0.0.0.0/0
reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
Currently this server is not behind any type of firewall.
Can someone suggest something I have forgotten?
TIA,
Shane