LINUX: HOW TO PRINT SSH LOGIN VERBOSE INFORMATION FOR DEBUGGING AND TROUBLESHOOTING SSH ISSUES

Following is command to use.

ssh -vv root@<hostname>

Following is sample output of above command.

 debug1: Reading configuration data /etc/ssh/ssh_config 
debug1: Applying options for * 
debug2: ssh_connect: needpriv 0 
debug1: Connecting to etest-host [XX.XX.XX.XX] port 22. 
debug1: Connection established. 
debug1: identity file /home/appuser/.ssh/identity type -1 
debug1: identity file /home/appuser/.ssh/identity-cert type -1 
debug1: identity file /home/appuser/.ssh/id_rsa type -1 
debug1: identity file /home/appuser/.ssh/id_rsa-cert type -1 
debug1: identity file /home/appuser/.ssh/id_dsa type -1 
debug1: identity file /home/appuser/.ssh/id_dsa-cert type -1 
debug1: identity file /home/appuser/.ssh/id_ecdsa type -1 
debug1: identity file /home/appuser/.ssh/id_ecdsa-cert type -1 
debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3 

 

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Products to which Article Applies

All Linux Operating System 

Search Keywords: linux unix ssh login debug debugging verbose information troubleshooting command commands option options print printing

Article Author: Tarun Boyella