Linux – Nano process occupying 100% CPU

linuxUbuntu

I have a Ubuntu web server for Rails 3.0 application. when I login to my webserver and do

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I get set of processes with their stats. Out of that nano process is occupying 100% of the CPU. And that nano process is a root process. I dont know what is going wrong. Because of this, my apache processes, ruby processes all are getting their chance to answer to answer any web requests.

I am the only one who is logged in via ssh. I have disabled webserver logins via password. Please help.

Best Answer

I've had this happen with other text editting programs if I'm ssh'd into the box and lose connection. When I go back in, the process I was using before disconnect was taking 100% cpu.

I'd kill it.

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Ubuntu – Locked out of the Slicehost.com Ubuntu box

Looks like you have your server-keys missing/wrong permissions/corrupt:

Clue:

error: Could not load host key: /etc/ssh/ssh_host_rsa_key                   
error: Could not load host key: /etc/ssh/ssh_host_dsa_key

Permission should be owned by "root:root" and chmod 0600

To generate those keys:

ssh-keygen -f /etc/ssh/ssh_host_rsa_key -N '' -t rsa
ssh-keygen -f /etc/ssh/ssh_host_dsa_key -N '' -t dsa

Linux – dump/output/list Linux password expiry info for all users

A command like this should show you the expiration status for all accounts defined in your /etc/passwd.

cut -f 1 -d: /etc/passwd | xargs -n 1 -I {} bash -c " echo -e '\n{}' ; chage -l {}"

The important command is the chage -l username. That is the command that returns the expiration status for a user. Chage is also the command you would use to modify expiration rules. You may need to add sudo before chage depending on your system setup.

Best Answer

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