I'm writing some bash on a linux server, and there's one concept I'm trying to get my head around.
Given a domain name, can I tell if it's pointing to the current server? Bearing in mind that the server may have multiple ip addresses.
My current plan is to loop all ip addresses from the 'ip addr' command, and see if the 'host example.com' returns one of them.
Any better ideas?
I have a tool which outputs four columns of data with a space between each. However, the data items are variable length, and it's hard to read what's going on.
Is there a way I can line the output up using linux utilities to tabulate it for easy reading?
A remote linux web/db server stopped responding, and the hosting company just rebooted it. What steps should I take to find out what went wrong?