There are several tools you can use to verify access to a remote network port: nc, tcping, telnet. Unfortunately, nc from the netcat package has been...

This is a simple wrapper for the awesome rsync-time-backup script by Laurent Cozic. Through clever use of hard links rsync-time-backup greatly speeds up incremental backups and...

This is a small collection of tools and examples for working with IP addresses and ranges in Bash. This post is not meant to...

I had a little task: clone an operational VM from one VCenter to another. Normally, for such a task I would use the Standalone...

I almost never delete anything (not on purpose anyway). Having said that, sometimes I do need to find old data on a server and...

The Cloud tab of the Solr Web UI is convenient, but not for monitoring purposes. Just like you, I hate XML and parsing it...

Depending on your Postfix configuration, the same email may cycle through the postfix queue several times, changing it's queue ID and making it difficult to...

This is a simple one: get a list of MX records for the given domains and output into CSV file. Really, the only interesting...

Below is shorthand for installing alternative versions of Java on your RHEL/CentOS system. This may come in useful for the purposes of testing. # Set...