Hack 14. Debug SSH Client Session

    Sometimes it is necessary to view debug messages to troubleshoot any SSH connection issues. pass -v (lowercase v) option to the ssh as shown below to view the ssh debug messages.

    Example with SSH client debug message:

    1. locaclhost$ ssh -v -l jsmith remotehost.example.com
    2.  
    3.  
    4. debug: SshConfig/sshconfig.c:637/ssh_config_set_param_verbose: Setting variable ‘VerboseMode’ to ‘FALSE’.
    5.  
    6. debug: SshConfig/sshconfig.c:3130/ssh_config_read_file_ext: Read 17 params from config file.
    7. debug: Ssh2/ssh2.c:1707/main: User config file not found, using defaults. (Looked for ‘/home/jsmith/.ssh2/ssh2_config’)
    8.  
    9. debug: Connecting to remotehost.example.com, port 22… (SOCKS not used)
    10. warning: Connecting to remotehost.example.com failed: No address associated to the name