Aaron's Worthless Words

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linux

Netbox Upgrade Play-by-play

I just upgraded my Netbox server from v2.7.6 to v3.4.8. This is just a record of what I did in case anyone want to know how I did it. Environment * The source v2.7.6 server is an Ubuntu 18.04 VM. Yes, both are very

A Quick Intro to Google's Capirca

Yeled left a comment earlier this week asking if I’d seen Google’s Capirca. I’d heard of it and checked out some presentation slides on it, but I’d never actually tried it out, so, in keeping with the script, I downloaded it to see what it could

An Interesting Problem with Multiple DCs on a Stick

We talked about running multiple data centers on a stick back in August, which is where you have multiple logical pairs of client and server VLANs on a single CSM for different tiers or functions. The big point of the article was that you had to do some fancy forwarding

VLANs on Linux

My home network has a Linux box running IPTables as it’s center point, and, since there are four networks, it has 4 NICs and 4 cables into the switch. I kept running into problems with the NICs (they would reorder depending on what flavor of Linux was installed), so

Unix Epoch + 1234567890 = Next Friday

I’m kind of an obsessive-compulsive when it comes to numbers (1, 2, 3, 4, 5…), so I’m fairly excited about next Friday (..6, 7, 8, 9, 10…) when Epoch time reaches 1234567890 at 18:31:30 on 13 February(…11, 12, 13, 14, 15…). I’m sure my

Leap Second

Did anyone notice (or care about) the leap second? I did neither. Here’s some cool output from Kevin Oberman on the NANOG list, though. bash-2.05b# date Thu Jan 1 00:59:58 CET 2009 bash-2.05b# date Thu Jan 1 00:59:59 CET 2009 bash-2.05b# date

Free and Awesome Network Tools

We all have limited budgets these days. Long gone are the days of unlimited resources and uncontrollable expansion of the network, so it’s important that any network dude or dudette pay attention to the open-source world. Below is a list of stuff I use at the office and at