rebooting bio.cc?

Dan Bolser

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Dec 21, 2010, 2:25:04 PM12/21/10

to BiO.CC server interface

Has anyone done it remotely?

Any hints?

We were seeing some sshd processes that were using 100% CPU (three of
them). These likely represent TCP based DoS attacks. I killed the
processes and updated the kernel (just in case).

I guess the next thing is to reboot?

Should we also consider updating from F10? I think the problem last
time was that we landed on PHP 5.3.1, which breaks MediaWiki... It's
not urgent, but we don't get any security updates I think...

Cheers,
Dan.

Jose M. Duarte

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Dec 21, 2010, 2:27:25 PM12/21/10

to Dan Bolser, BiO.CC server interface

There's also an rpcbind at 100%. Is that normal?

Jose

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Dan Bolser

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Dec 21, 2010, 2:29:26 PM12/21/10

to Jose M. Duarte, BiO.CC server interface

IIRC it's the NFS process, so, assuming there is any IO, it's
normal... I think...

Jose M. Duarte

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Dec 21, 2010, 4:33:28 PM12/21/10

to Dan Bolser, BiO.CC server interface

It seems a bit too high to have it at 100% all the time.

That's strange (it's been a few hours like that) unless somebody is being hitting NFS really badly all this time. I saw it already 6 hours ago like that together with the sshd processes.

Jose

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