Copying a VM between VCenters
I had a little task: clone an operational VM from one VCenter to another. Normally, for such a task I would use the Standalone...
Agedu – Finding Old Files
I almost never delete anything (not on purpose anyway). Having said that, sometimes I do need to find old data on a server and...
Monitoring Solr Cores
The Cloud tab of the Solr Web UI is convenient, but not for monitoring purposes. Just like you, I hate XML and parsing it...
Tracking Emails in Postfix Logs
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...
Gather MX Records for a List of Domains
This is a simple one: get a list of MX records for the given domains and output into CSV file. Really, the only interesting...
Installing Alternative Java Versions on RHEL/CentOS
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...
Installing NetData on RHEL/CentOS
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...
Loan Payment Calculator in Bash
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...
BIND DNS Query Frequency Analysis
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...