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So when doing this:

ssh -l root myKVMinstance.domain.com

i get this:

ssh: connect to host myKVMinstance.domain.com port 22: Operation timed out

at the same time while that is happening, i am able to ping, connect to apache and tomcat, and those display what i'd expect [the test pages].

Then, after a while, the server is reachable again, as if nothing ever were.

If i was connected via ssh, it would kick me out of my session with a

"Write failed: Broken pipe" error.

I am constantly pinging that box, and i get very few packets lost, mostly a single one, and then a large amount of successfully returned ones.

Please help!

This is occuring on a KVM instance, the KVM host os remains reachable throughout the instance's "outage".

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1 Answer 1

Seems like the sshd process is dying on you. Try to update or reinstall it using your package manager, or download it from http://www.openssh.org/portable.html

e.g.,

yum -y update openssh-server

yum -y remove openssh-server

yum -y install openssh-server

etc.

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tried that. Also trying a mtr -i 0.01 xxx.xxx.xxx.xxx to see if i can spot some packet loss. Will wait and see until it happens again. –  user436118 Jul 21 '12 at 2:35
    
Does the KVM host OS have SSH? can you connect from the host to the instance? –  mik Jul 23 '12 at 18:37

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