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...

NetData is a real-time system monitor great for visualizing performance data. Instances of netdata run independently on monitored systems. The results can be accessed remotely and...

Just a little bit of fun with Bash: a loan payment calculator. Nothing fancy here. Maybe I'll add the amortization schedule to it later... #!/bin/bash principal=$(echo...

The little script (dns_qpm2) below will look through your BIND query logs and calculate average query-per-minute rate for the given clients.e Nothing fancy, but...

I just built a new CentOS box and needed to make sure it had all the same packages installed as one of my other...

This is a common question: how can I run nohup without creating the annoying nohup.out ? And the common answer is: you can't. But this is...

This is a small collection of useful ss (written by Alexey Kuznetsov of the Russian Nuclear Research Institute) syntax examples that go beyond the basics covered by other...

Think of osync as a kind of rsync that is more suited for making backups. While rsync certainly has more options, osync takes a lot of the complexity...