Re: [CentOS] Yes another "I can't open port 53 for Bind DNS"

On 02/01/2012 12:14 AM, Shane Bywater wrote:

I'm not using iptables (well I didn't configure any)

[root@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

You should figure out who/what did, then. Those rules don't look like they were created by Red Hat's tools (where you'd see RH-Firewall...), and won't be present by default. Something created rules and the rules don't allow access to TCP or UDP 53 (you need both).

For now, just flush the rules: iptables -F INPUT