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Linux Tutorial :: View topic - how to know which ip addresses connected through ssh
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how to know which ip addresses connected through ssh

 
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wshamroukh
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Joined: Jul 06, 2006
Posts: 39
PostPosted: Mon Mar 24, 2008 7:55 am    Post subject: how to know which ip addresses connected through ssh Reply with quote
Hello All

can anybody tell me how to know the IP address of who connects or connected to a linux machine through ssh?

Thanx in advance
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ffreeloader
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Joined: Aug 10, 2005
Posts: 483
PostPosted: Mon Mar 24, 2008 11:34 pm    Post subject: Re: how to know which ip addresses connected through ssh Reply with quote
wshamroukh wrote:
Hello All

can anybody tell me how to know the IP address of who connects or connected to a linux machine through ssh?

Thanx in advance


By default Debian logs all ssh connections to /var/log/auth.log. I would imagine most distros do things quite similarly. Take a look at the configuration files in /etc/ssh to see where your distro logs ssh connections. In Debian the file is sshd_config. Your distro will probably have a similar naming convention.
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wshamroukh
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Joined: Jul 06, 2006
Posts: 39
PostPosted: Tue Mar 25, 2008 8:29 am    Post subject: Reply with quote
thanx for the help.. i found it in /var/log/secure.... my distribution is FC... when i deleted the IP address i of the machine i connect from to the linux machine... but still when i connect to linux machine i will get notification of the last IP address who connected to this linux machine through ssh.. why?
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ffreeloader
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Joined: Aug 10, 2005
Posts: 483
PostPosted: Tue Mar 25, 2008 9:25 am    Post subject: Reply with quote
wshamroukh wrote:
thanx for the help.. i found it in /var/log/secure.... my distribution is FC... when i deleted the IP address i of the machine i connect from to the linux machine... but still when i connect to linux machine i will get notification of the last IP address who connected to this linux machine through ssh.. why?


You need to look through the ssh server config files for that. That data has to be stored in the log somewhere, and the ssh server has to be configured to do that. Try commenting out the "PrintLastLog yes" line, or change the yes to no, in /etc/ssh/sshd_config. At least that's the file path and name Debian uses.
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wshamroukh
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Joined: Jul 06, 2006
Posts: 39
PostPosted: Tue Mar 25, 2008 1:58 pm    Post subject: Reply with quote
thanks again for ur help... it did work Smile
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