Clusterssh – Administer multiple ssh or rsh shells simultaneously
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The command opens an administration console and an xterm to all specified hosts. Any text typed into the administration console is replicated to all windows. All windows may also be typed into directly.
This tool is intended for (but not limited to) cluster administration where the same configuration or commands must be run on each node within the cluster. Performing these commands all at once via this tool ensures all nodes are kept in sync.
Connections are opened using ssh which must be correctly installed and configured.
Extra caution should be taken when editing files as lines may not necessarily be in the same order; assuming line 5 is the same across all servers and modifying that is dangerous. It's better to search for the specific line to be changed and double-check all terminals are as expected before changes are committed.
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Post tags: clusterssh 21.04, desktop, multiple ssh sessions ubuntu 21.04, open multiple ssh sessions ubuntu
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Source: Ubuntu Geek