mssh

Connect to multiple SSH servers

$ mssh [user@host1] [user@host2] [user@host3]

$ mssh -a [alias_name]

$ mssh [user@host1:2222] [user@host2:22]

mssh [options] (-a alias | hosts[:port])

mssh (MultiSSH) is a GTK+ based SSH client for issuing commands to multiple servers simultaneously. It displays multiple terminal windows in a grid layout, allowing administrators to type commands once and have them executed across all connected hosts.
The interface supports navigation between terminals, individual or grouped input, and predefined server groups through the configuration file.

-a, --alias _alias_

Open hosts associated with named alias from configuration

Display help and exit

Output version information and exit

Modifier + Arrow keys

Navigate between terminal windows

Toggle terminal maximization

Open dialog to add new hosts

Configuration file: ~/.mssh_clusters
Aliases map to space-separated host lists:

$ webservers = web1.example.com web2.example.com web3.example.com
dbservers = db1.example.com db2.example.com

$ {uptime} = uptime
{df} = df -h

Requires a graphical display (X11 or Wayland with XWayland). Commands are sent to all terminals by default; use mouse click to select individual terminals. Host aliases must be defined in ~/.mssh_clusters before use.

mssh was originally created by Bradley Smith in 2009 and is currently maintained by Héctor García. It provides a graphical alternative to text-based multi-SSH tools like cssh and pdsh.

ssh(1), cssh(1), tmux(1)