Welcome to a new season of our SysAdvent Blog!

This december, the staff at Redpill Linpro runs an advent calendar with sysadmin-related content!

Our season two of the SysAdvent Calendar kicked off, as expected, on December 1st.

As with the original sysadvent blog, the article contents this year will be a bit longer compared to last year, ranging from ONIE switches through S3 website buckets to Vagrant usage.

Head on over to the sysadvent calendar for the articles!

Lars Olafsen

Operations Manager at Redpill Linpro

Lars has been in the IT business for around two decades now, working initially both as a developer and systems administrator. He's been with Redpill Linpro for 9 years, and in addition to being one of our operations managers, he still gets the time to solder together pieces of code.

Validating SSH host keys with DNSSEC

We have all done it. When SSH asks us this familiar question:

$ ssh redpilllinpro01.ring.nlnog.net The authenticity of host 'redpilllinpro01.ring.nlnog.net (2a02:c0:200:104::1)' can't be established. ECDSA key fingerprint is SHA256:IM/o2Qakw4q7vo9dBMLKuKAMioA7UeJSoVhfc5CYsCs. Are you sure you want to continue connecting (yes/no/[fingerprint])? 

…we just answer yes - without bothering to verify the fingerprint shown.

Many of us will even automate answering yes to this question by adding StrictHostKeyChecking accept-new to our ~/.ssh/config ... [continue reading]

Single node Kubernetes setup

Published on April 04, 2019

Configure Alfresco 5.2.x with SAML 2.0

Published on March 25, 2019