Repeating Ourselves Less with M4

Table of Contents 1. An extremely fast primer on Macros 2. Enter m4 3. Shortening httpd.conf 4. The final config file 5. Should you do this? In my previous post about migrating my websites over to an OpenBSD VPS I lamented the fact that I had to repeat identical blocks of code quite a few times to achieve blocking of malicious routes. However, while httpd indeed doesn't come with any built-in…