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1. Name

ssh [man page] - OpenSSH SSH client (remote login program)

2. Synopsis

ssh [-1246AaCfgKkMNnqsTtVvXxY] [-b bind_address]
         [-c cipher_spec] [-D [bind_address:]port]
         [-e escape_char] [-F configfile]
         [-i identity_file] [-L  [bind_address:]
         port:host:hostport] [-l login_name]
         [-m mac_spec] [-O ctl_cmd] [-o option]
         [-p port] [-R [bind_address:]
         port:host:hostport] [-S ctl_path]
         [-w tunnel:tunnel] [user@]hostname
         [command] 

3. Frequently used options

-l      login_name
-v      Verbose mode.  Causes ssh to print debugging
        messages about its progress.  This is helpful
        in debugging connection, authentication, 
        and configuration problems.  Multiple 
        -v options increase the verbosity. 
        The maximum is 3. 

4. Examples

ssh to a box with an IP Address 192.168.148.142 and as user root:

ssh -l root 192.168.148.142 

or

ssh  

Feel free to specify host name instead of IP address. To ssh to linuxconfig.org_remote as a root user we can use:

ssh _remote 

For troubleshooting your ssh service use -vvv option as follows:

ssh -vvv _remote 

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