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I've got IRCD-Hybrid installed with the following listen config:

/* listen {}: contain information about the ports ircd listens on (OLD P:) */
listen {
        /* port: the specific port to listen on.  if no host is specified
         * before, it will listen on all available IPs.
         *
         * ports are seperated via a comma, a range may be specified using ".."
         */

        /* port: listen on all available IPs, ports 6665 to 6669 */
        # host = "127.0.0.1";   # change this!
        #port = 6665 .. 6669;
        port = 6667;
};

and the following iptables -L output:

ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ircd

I can connect to the IRC server through irssi on the server, but when I try and connect from outside the server, I get "no route to host".

nmap confirms that the port is not open. What else can I try?

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Run iptables -nL. Is it allowing port 194 instead of 6667? What is your output of netstat -tan? –  ott-- Feb 2 '13 at 17:46
    
Shows 6667. netstat -tan here: pastebin.com/Kebdmb3V –  Randall Ma Feb 2 '13 at 19:25
    
Can you add the full iptables -nL output too? –  ott-- Feb 2 '13 at 20:00
    
pastebin.com/65wv8x68 –  Randall Ma Feb 2 '13 at 21:01
    
If the policy is always ACCEPT, you don't need rules. Is the client trying an IPv6 connection? Can you watch network traffic with tcpdump or wireshark? –  ott-- Feb 2 '13 at 21:19

1 Answer 1

up vote 0 down vote accepted

Did some more research: my VPS provider doesn't open all ports by default.

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