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I have two server with these specifications:

  1. IP address: 192.168.1.94

  2. IP address: 192.168.1.221

I want to telnet to the first one from the second one (to port 5029) but I get this error:

root@debian:~# telnet 192.168.1.94 5029 Trying 192.168.1.94... telnet: Unable to connect to remote host: Connection refused

I can telnet from 192.168.1.94 to itself. this means that a program is listening to 5029 port:

[root@myelastix ~]# telnet localhost 5029 Trying 127.0.0.1... Connected to myelastix.mohaymen.co (127.0.0.1). Escape character is '^]'.

I thought may be firewall is blocking connection in 192.168.1.94 server but these are firewall rules:

[root@myelastix ~]# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination

besides I stopped iptables also but nothing happens again:

[root@myelastix ~]# service iptables stop Flushing firewall rules: [ OK ] Setting chains to policy ACCEPT: filter [ OK ] Unloading iptables modules: [ OK ]

what is the problem?

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  • I just installed telnetd on my machine (Ubuntu 12.04) to try this and I can connect from both the localhost and from my server (after ssh-ing) into it. Please update your question with the distro and distro-version info, and possible which telnet daemon you installed. Commented Nov 10, 2014 at 9:03

1 Answer 1

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Can you do this?

[root@myelastix ~]# telnet 192.168.1.94 5029

If not, make sure telnetd is configured to listen on an external interface.

netstat -tulpn | grep :5029
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  • can't do telnet 192.168.1.94 5029 neither and the output of netstat is tcp 0 0 127.0.0.1:5029 0.0.0.0:* LISTEN 2848/voipmonitor Commented Nov 10, 2014 at 12:55
  • There you have it. telnetd is configured to only accept connections from localhost. Check /etc/xinetd.d/telnet file and add bind = 192.168.1.94 Commented Nov 10, 2014 at 15:04

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