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Old 06-13-2002, 02:04 PM   #1
KevStA
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Registered: Dec 2001
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Unhappy Stupid telnet question


Hi guys,

I got a fairly stupid telnet question, I've got a spair machine on my network, which is setup with telnet for a friend so that he can mess about with it for a bit...e.g. some linux commands etc. Anyway, i setup my router to forward port 23 traffic into my network. Theres only one thing that i would like to change though.

When i login, i see

Quote:
Red Hat Linux release 7.2 (Enigma)
Kernel 2.4.7-10 on an i686
login:
How do i change this?

There is no specific reason why i want to change this, i just feel like it


Thanks.

Last edited by KevStA; 06-13-2002 at 02:05 PM.
 
Old 06-13-2002, 02:13 PM   #2
neo77777
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edit /etc/issue and/or /etc/issue.net

Last edited by neo77777; 06-13-2002 at 02:16 PM.
 
Old 06-13-2002, 02:30 PM   #3
KevStA
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hehehe, I tried /etc/issue which didn'n't work, and then I realised your edited you post and /etc/issue.net worked.

Thanks for your help.

Edit: Grammar, *need to slow down when replying *

Last edited by KevStA; 06-13-2002 at 02:32 PM.
 
Old 06-13-2002, 02:42 PM   #4
sewer_monkey
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Be careful, though, I've seen RedHat 7.x overwrite both of these files on startup (I think the script responsible for this is /etc/init.d/network, if I am not mistaken)... This behavour might have been removed from 7.2 and 7.3, though...
 
Old 06-13-2002, 02:47 PM   #5
KevStA
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Thanks for the advise sewer_monkey, i did it and seemed to work perfect...so we'll see when i shut down and power backup
 
Old 06-13-2002, 03:03 PM   #6
KevStA
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In /etc/issue.net i put

welcome to my telnet server.
etc

How can i show the ip of the person trying to connect, e.g. if i connect from one of my nodes on my network. i want it to say:

welcome to my telnet server <IP of the node that is trying to connect>
etc.

How Would i do this?

Thank you for your help and patience
 
Old 06-13-2002, 05:05 PM   #7
wartstew
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Running telnet on the public internet these days is a security risk. You should look into using SSH (Secure Shell) instead.
 
Old 06-13-2002, 05:19 PM   #8
KevStA
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Yes, i am fully aware of that, like i said. Its being port forwarded to a machine, that i do not use thus not bothering me. I researched into possible attacks etc. This is why the machine is only being turned on, when my friend asks.
 
Old 06-13-2002, 06:48 PM   #9
sewer_monkey
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Quote:
Originally posted by KevStA
In /etc/issue.net i put

welcome to my telnet server.
etc

How can i show the ip of the person trying to connect, e.g. if i connect from one of my nodes on my network. i want it to say:

welcome to my telnet server <IP of the node that is trying to connect>
etc.

How Would i do this?

Thank you for your help and patience
Hmmmm... I think you're just stuck with the possibilities listed in the issue.net man page. For some reason http://man.linuxquestions.org/ lacks that particular man page, but here it is in all it's glory:
Code:
ISSUE.NET(5)              System File Formats Manual              ISSUE.NET(5)

NAME
     issue.net - identification file for telnet sessions

DESCRIPTION
     The file /etc/issue.net is a text file which contains a message or system
     identification to be printed before the login prompt of a telnet session.
     It may contain various `%-char' (or, alternatively, '\-char') sequences.
     The following sequences are supported by telnetd:
           %l     - show the current tty
           %h, %n
                  - show the system node name (FQDN)
           %D, %o
                  - show the name of the NIS domain
           %d, %t
                  - show the current time and date
           %s     - show the name of the operating system
           %m     - show the machine (hardware) type
           %r     - show the operating system release
           %v     - show the operating system version
           %%     - display a single '%' character

FILES
     /etc/issue.net

SEE ALSO
     telnetd(8)

Linux NetKit (0.17)              May 22, 1994              Linux NetKit (0.17)
 
Old 06-13-2002, 07:31 PM   #10
KevStA
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Thanks for the help sewer_monkey

Edit: i didn't think of doing man issue.net, although i did do man /etc/issue.net which showed whats in the file.

Last edited by KevStA; 06-13-2002 at 07:34 PM.
 
  


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