Ops

• Home Network

  Projects and links more related to home networking than professional ops Home Automation Ultimate Home Server - Massive Helm chart for a homelab, designed for a single-node k3s deploy

• ChromeOS Linux (Chrostini) Error 58

  With a recent update to 89.0.4389.82 of ChromeOS, there was also an update to the underlying container that hosts Linux. Normally if this happens it’s a relatively short process. However, a few days ago this took far longer, and ended up with a “Error starting penguin container: 58” message. Not helpful at all! Fortunately with some searching, I found the solution on Masaki Muranaka’s blog. The article is in Japanese, but fortunately Google translate was able to work well enough for me to get the steps necessary to fix the issue.

• Kubernetes Logging with Grafana's Loki

  Happy 2021! And to get the year started, let’s look at some modern logging stacks! I love modern application and stack observability. Anyone that remembers the old days of stringing together Nagios and Syslog into a cobbled-together stack can certainly sympathize. Now solutions exist that provide a more integrated experience across metrics, logs, and tracing. Today I’ll be concentrating on the logs component with Grafana’s Loki, and demonstrate that stack on a Civo k3s cluster.

• Proxy Server

  DNS Blacklists Not quite a proxy server, but similar functions with a little less configuration required for end clients: PiHole: Extremely popular drop-in to block Ads and Spyware. PiHole Blocklists: Github projects with various pre-compiled blocklists BlockWorkr: Unified blocklist service. DNSWarden Blocklist: DNS blocklist - no longer maintains, but could be good starting point. Proxy Server E2Guardian: Successor of Dansgaurdian, which I had good success filtering most “inappropriate” content for K12 Captive Portal In K12 environments, user accounts and authentications are generally useful to provide a method to control who has internet access.

• Hosted CLI

  Some interesting hosted CLI utilities (telnet/ssh): rainmaker.wunderground.com (Telnet): Has existed for longer then I can remember (at least the late 90s) wttr.in (HTTP) A super-nify text-based weather forcast netris.rocketnine.space (SSH): A text-based multi-user tetris clone. Source Time! Not really hosted, but NIST maintains an old-fasion “daytime” service. Example nc time.nist.gov 13