BGP.guru

BGP.guru

Nerd blog.

12 Feb 2016

Filtering with BGP Communities

Otherwise known as Filtering BGP Advertisements Using BGP Communities For Fun and Profit but that made the layout terrible.
07 Feb 2016

HTML Email with Nagios

But can you make the alerts look nicer?
21 Jan 2016

How I Use Nagios

I have been using Nagios extensively to monitor infrastructure that I am interested in for about 10 years now, and each time I build a new system I version the configuration. I am up to Generation 4 now.
01 Jan 2016

MikroTik and Hairpin NAT

I recently renamed my internal LAN domain name. For some crazy reason I'd thought .int was not a public TLD and didn't check at all before using that before the last time I renamed my internal LAN. I had no issues for several years, but I felt with the holidays it was time to move away from this invalid domain internally to something valid.
14 Dec 2015

ipquail-go

I've been waiting to add some features to ipquail.com for a while, but the way in which I was handling API endpoints at the moment needed to change before I could accommodate anything fancier -- at the moment I was using simple Server Side Includes ("SSI" in 90's Apache web server terminology) and some mime-type modifications to fake API endpoints. This needed to change.