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тАО11-22-2004 06:25 AM
тАО11-22-2004 06:25 AM
Telnet
telnet host_name 2001
I think 2001 was the port used for telnet, now I am not connecting connection, i am getting connection refused. what could be the reson?
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тАО11-22-2004 06:29 AM
тАО11-22-2004 06:29 AM
Re: Telnet
Not all hosts run telnet on port 2001.
do telnet host
Anil
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тАО11-22-2004 06:32 AM
тАО11-22-2004 06:32 AM
Re: Telnet
The default port used by telnet is 23,
grep telnet /etc/services
Maybe the server on which you were trying to telnet using port 2001 was configured that way.
Normally you don't have to define the port, simply telnet host_name
Hope this helps.
regds
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тАО11-22-2004 06:35 AM
тАО11-22-2004 06:35 AM
Re: Telnet
telnet: Unable to connect to remote host: Connection refused.
Actually the remote host I am trying with
telnet 2001
was working & i believe configured to work on port 2001,
As it was working earlier, stopped now can u see any resons
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тАО11-22-2004 06:37 AM
тАО11-22-2004 06:37 AM
Re: Telnet
You are trying to conect to port 2001 (yes you are correct).
The reason may be among the following:
1) No service is set up on 2001 in /etc/services
2) The daemon set up to server port 2001 may be down. /etc/services will give you an idea where to work.
3) A firewall or other network configuration may be blocking that port.
You may find more information in /var/adm/syslog/syslog.log
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО11-22-2004 06:38 AM
тАО11-22-2004 06:38 AM
Re: Telnet
There could be any number of reasons why your telnet is not working.
Maybe telnet has been disabled. It is blocked by Firewall. Only certain ip subnets / hosts are allowed to do telnet.
Can you ping the server. Can you get console access. If you are not the primary admin for the server / speak to the primary admin.
Hope this helps.
Regds
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тАО11-22-2004 06:52 AM
тАО11-22-2004 06:52 AM
Re: Telnet
Look for a line containing 2001/tcp in /etc/services. The name can be anything:
anyname 2001/tcp
In addition to that entry there needs to be a corresponding entry in /etc/inetd.conf:
anyname stream tcp nowait root /usr/lbin/telnetd telnetd
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тАО11-22-2004 07:22 AM
тАО11-22-2004 07:22 AM
Re: Telnet
Bill Hassell, sysadmin
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тАО11-22-2004 11:04 AM
тАО11-22-2004 11:04 AM
Re: Telnet
Most likely you are using a 'terminal server'. I have seen some of the terminal servers allow only one connection to each port. So, if you have already connected to that port in some other session, make sure you disconnect from it. This is one of the issues of using terminal servers. We have made it a practice here to let SAs logon to a single system and then telnet to the terminal server from there. That way, one can keep track of the connections.
Or check with the network group that is maintaining the terminal servers to force disconnect the port 2001.
-Sri
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тАО11-22-2004 05:16 PM
тАО11-22-2004 05:16 PM