user123079's questions

I'm running an Ubuntu/WordPress server on Amazon EC2 which is experiencing problems every 24-48 hours: I get a CPU alarm from EC2, log into the server, and discover sshd is running at 99.9% CPU.

This is a public-facing WordPress server, so normally, I would assume the server has been compromised... except port 22 is enabled only to my IP, root login is disabled, passwords are disabled, I have the only key, and last and lastb show that I'm the only user who has ever logged into sshd.

When I kill the offending process or reboot the server, all is OK for 24-48 hours, then the problem recurs.

Any advice or pointers would be very appreciated because I can't find a problem.

Problem: Gmail (and only Gmail) quits working for a period of 5-10 mins only on one computer.

• Problem occurs several times daily
• Does not appear to be any "triggering event" - user is simply using Gmail normally when the problem arises
• User can access their Gmail from other computers on same LAN
• User can access all other sites, including other Google sites, from affected computer
• After several mins of outage, Gmail will spontaneously resume normal operation on affected computer
• The problem occurs in all browsers (Chrome, FF, Safari)
• Computer: MacBook Pro, OSX 10.7.3, latest browsers

I find this very baffling. Any advice welcome.