Telnet: No route to host

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Silva
Posts: 14
Joined: 2017/02/07 18:02:20

Telnet: No route to host

Post by Silva » 2019/01/15 15:31:52

Hello,

I'm having this error when I try to test the connection to the port 1521 in another server.

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telnet other_server 1521
Trying other_server ...
telnet: connect to address other_server: No route to host
Both firewallds are down

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service firewalld status
Redirecting to /bin/systemctl status firewalld.service
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
   Active: inactive (dead)
     Docs: man:firewalld(1)
The port is Listening

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netstat -anp | grep 1521
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 0.0.0.0:1521            0.0.0.0:*               LISTEN      14487/tnslsnr
tcp        0      0 172.16.207.6:1521       172.16.207.6:10512      ESTABLISHED 14487/tnslsnr
tcp        0      0 172.16.207.6:10512      172.16.207.6:1521       ESTABLISHED 5865/ora_pmon_prote
Also, PING and SSH worked fine, is the port 1521 that is not responding.

What else could be?

Regards

hunter86_bg
Posts: 2019
Joined: 2015/02/17 15:14:33
Location: Bulgaria
Contact:

Re: Telnet: No route to host

Post by hunter86_bg » 2019/01/26 09:06:26

Run 'iptables -L -n' on the destination and check the situation.

lightman47
Posts: 1521
Joined: 2014/05/21 20:16:00
Location: Central New York, USA

Re: Telnet: No route to host

Post by lightman47 » 2019/01/27 13:38:38

In addition, DNS ? (if you're trying to connect via names).

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