Difference between revisions of "HiveSSH"
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== Control a group of hosts from one shell == | == Control a group of hosts from one shell == | ||
| − | This lets you SSH to a group of servers and control them as if they were one. | + | This lets you SSH to a group of servers and control them as if they were one. Each command you enter is run on each host in parallel. The response of each host is collected and printed. In normal synchronous mode Hive will wait for each host to return the shell command line prompt. The shell prompt is used to sync output. |
| − | Each command you enter is run on each host in parallel. The response of each | + | |
| − | host is collected and printed. In normal synchronous mode Hive will wait for | + | The goal of this tool is similar to `cssh` (Cluster SSH), but `cssh` runs in X Windows and is much nicer. |
| − | each host to return the shell command line prompt. The shell prompt is used | ||
| − | to | ||
=== Download === | === Download === | ||
| Line 17: | Line 15: | ||
=== Notes === | === Notes === | ||
| − | This is a stable beta. I plan to improve the user interface. | + | This is a stable beta. I plan to improve the user interface. I might get rid of the synchronous mode so that hosts can repond in their own time. Another idea is to build a curses interface so that you can sequence through all the different host output screens. |
| − | I might get rid of the synchronous mode so that hosts can | ||
| − | repond in their own time. Another idea is to build a curses interface | ||
| − | so that you can sequence through all the different host output screens. | ||
=== Example === | === Example === | ||
This shows hivessh connecting to two servers and running uptime. | This shows hivessh connecting to two servers and running uptime. | ||
| + | |||
<pre> | <pre> | ||
$ ./hivessh.py host1.example.com host2.example.net | $ ./hivessh.py host1.example.com host2.example.net | ||
| Line 45: | Line 41: | ||
======================================================================= | ======================================================================= | ||
</pre> | </pre> | ||
| + | |||
Usage: | Usage: | ||
| + | |||
<pre> | <pre> | ||
hivessh.py host1 host2 host3 ... hostN | hivessh.py host1 host2 host3 ... hostN | ||
</pre> | </pre> | ||
| + | |||
You will be asked for your username and password. | You will be asked for your username and password. | ||
It is assumed that these will be the same for all hosts | It is assumed that these will be the same for all hosts | ||
Revision as of 22:49, 30 January 2008
Control a group of hosts from one shell
This lets you SSH to a group of servers and control them as if they were one. Each command you enter is run on each host in parallel. The response of each host is collected and printed. In normal synchronous mode Hive will wait for each host to return the shell command line prompt. The shell prompt is used to sync output.
The goal of this tool is similar to `cssh` (Cluster SSH), but `cssh` runs in X Windows and is much nicer.
Download
Download the from here:
SourceForge
Notes
This is a stable beta. I plan to improve the user interface. I might get rid of the synchronous mode so that hosts can repond in their own time. Another idea is to build a curses interface so that you can sequence through all the different host output screens.
Example
This shows hivessh connecting to two servers and running uptime.
$ ./hivessh.py host1.example.com host2.example.net
username: noah
password:
connecting to host1.example.com - OK
connecting to host2.example.net- OK
targetting hosts: 192.168.1.1 192.168.1.2
CMD (? for help) > uptime
=======================================================================
host1.example.com
-----------------------------------------------------------------------
uptime
23:49:55 up 74 days, 5:14, 2 users, load average: 0.15, 0.05, 0.01
=======================================================================
host2.example.net
-----------------------------------------------------------------------
uptime
23:53:02 up 1 day, 13:36, 2 users, load average: 0.50, 0.40, 0.46
=======================================================================
Usage:
hivessh.py host1 host2 host3 ... hostN
You will be asked for your username and password. It is assumed that these will be the same for all hosts or that you have key pairs registered for each host.
--askall : This tells Hive that you want to be prompted for your
username and password separately for all machines.
This is useful if you have differnet usernames and
passwords on each host. This can even be used to connect
to different user accounts on a single host. For example:
hive.py --askall host1 host1 host1
