SysteMajik Consulting

Month: June 2016

  • Command Line Arguments in Python

    When I need a new tool, I often code it in Python. Often, command-line options are useful. Sometimes it is possible to have a fixed set of parameters, but this is not very flexible. Fortunately, Python has standard libraries to handle parsing command lines. Three libraries provide varying capabilities. Some of the systems I run on have older versions like Jython 2.1 or Python 2.6. This limits which libraries I can use without backporting libraries

    This document provides examples of four command-line processing options. The examples are for a program that processes files and has an optional argument to report the execution time.

    (more…)

  • MX on a Dynamic IP Address

    I often see posts asking about running a mail server on a Dynamic IP address. Twenty years ago I started running my server on a dynamic IP address. However, times have changed, and it is more difficult to do so. Stil, there are mail server roles that work reasonably well on a dynamic IP address.  

    (more…)