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When I run the command:

pdsh -w host1,host2 tail -f /var/log/apache.log

I get the following error:

pdsh@myhost: host2: rcmd: socket: Permission denied
pdsh@myhost: host1: rcmd: socket: Permission denied

Any ideas?

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2 Answers 2

Found the answer. rcmd_default needs an entry:

echo "ssh" > /etc/pdsh/rcmd_default

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Don't know why this was downvoted. It solves the issue for me. If it didn't work for the downvoter then they should have made a comment. – Brendan Maguire Dec 9 '13 at 13:55
Agreed. This also worked for me. – simao Feb 5 '14 at 13:28

You can use PDSH_RCMD_TYPE=ssh like:

PDSH_RCMD_TYPE=ssh pdsh -w host1,host2 tail -f /var/log/apache.log

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