hi anurag,

Thanks for the code actually I wanted to have a script in perl or shell as i dont knw python. It will be something like this if the server is up work on it else goto next one in list.

Thanks, King

--- Anurag anurag@hbcse.tifr.res.in wrote:

King wrote:

...

Hi guys ,

I want to write a script that will check the

ssh

...

connection can u suggest me best method to do that apart from ping (telnet ) on the ssh port or nmap

i

...

knw that but anything better than this ...

Why do you want to do so? telnet is a neat way for checking it. However if you must use some script then try this python script:

---

#!/usr/bin/env python """ File: sshtest.py Usage: $ python sshtest.py """

import socket,os server='gnu.hbcse' port=22 srv=socket.socket(socket.AF_INET,socket.SOCK_STREAM) try: srv.connect((server,port)) print('port '+str(port)+' @ '+server+' open') srv.close() except Exception: print('port '+str(port)+' @ '+server+' closed')

---

-Anurag

--

    __                                  __

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Thanks for the info dude, What i did was i used Net SSH Perl module to login to server and check the connection (with keys).Need to do error handliing now :(

Thanks. King

--- Anurag anurag@hbcse.tifr.res.in wrote:

On Mon, 10 Jan 2005 20:16:10 -0800 (PST), "King" nightlife_king@yahoo.com said:

...

hi anurag,

Thanks for the code actually I wanted to have

a

...

script in perl or shell as i dont knw python. It

will

...

be something like this if the server is up work on

it

...

else goto next one in list.

Save this shell script and execute.

#!/bin/bash ssh -X foo.bar ssh -X server.home ssh -X something.nothing ssh -X gnu.hbcse

---

This will try to connect to your ssh servers in that order. If it connects then it will ask for your password. You can enable public key authentication for use with ssh so that it does not ask for any password and uses your public key instead.

Generate ssh keys and copy them to ~/.ssh/ directory of server. then sign your key using: $ ssh-agent > /tmp/f $ source /tmp/f $ ssh-add

-Anurag

--

  __                                  __

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hi,

THe senario is that we update data on our servers through rsync (through ssh ) and a shell scripts is used to do that but the problem is if one server is down (connection fails) the script dies so rest servers (after the down server ) dont get updated. So what i was trying was to check the proper ssh connections to the server and supply the working server list to this script.

King...

--- Anurag anurag@hbcse.tifr.res.in wrote:

On Tue, 11 Jan 2005 20:47:04 -0800 (PST), "King" nightlife_king@yahoo.com said:

...

Thanks for the info dude, What i did was i used

Net

...

SSH Perl module to login to server and check the connection (with keys).Need to do error handliing

now

...

:(

http://www.perldoc.com/perl5.8.4/pod/perl.html

btw, what are you trying to do exactly? I couldn't understand anything from your past three mails...

-Anurag

--

  __                                  __

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