(This article is the essence of a post from this Redhat Archive and it goes as follows: Problem: You need to detect what deletes files on your Linux Solution: Using auditd, with the right flags, you could get a lot of information. In Practice: If the mount point/directory is /oracle, then: (as root:) auditctl –w /oracle -k whodeletedit -p…
Centreon is a nice GUI wrapper for Nagios. It is using MySQL as its configuration engine, and it functions quite well. One thing Cacti can do but Centreon can’t is mass automatic addition of servers. I have had a new site with an installed Centreon, and I wanted to add about 40 servers to be…
Unlike VMware Server, Xen’s HyperVisor does not allow an easy collection of performance information. The management machine, called “Domain-0” is actually a privileged virtual machine, and thus – get its own small share of CPUs and RAM. Collecting performance information on it will lead to, well, collecting performance information for a single VM, and not…
It is a question I’ve been asked a while back, and didn’t find the time to search for it. I have searched for an answer just now, and got to an answer given by one of the old-time gurus (most likely) in news servers (where the gurus lurk, usually). The answer is to use the…
