[ubuntu-uk] Security Updates Production Servers

[Jon Farmer]

Hi

I have recently started using Ubuntu Server on a couple of my
production machines. When I log in I get messages saying there are
updates available. So my question is how do I know if the updates are
critical or security updates as opposed to just updates generally. The
machines are offering telephone services and so need to be highly
available and so I don't want to do unnecessary reboots.

Any thoughts welcome.

Regards

Jon

-- 
Jon Farmer
Tel 07795 118140