A few Linux commands offer different ways to see which users are logging into your Linux servers, how often they log in, and how long they’ve been active or idle. If you want to get a report to see ...

Jack Wallen walks you through the process of setting up a centralized Linux log server using syslog-ng. Let’s say your data center is filled with Linux servers and you need to administer them all.

In a column about syslog [see “syslog Configuration” in the December 2001 issue of LJ] I mentioned “stealth logging”--by running your central log server without an IP address, you can hide your ...

If you have Linux servers that allow remote connection via SSH, you might want to limit the number of users allowed to log in. Your Linux servers are probably ...