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Systems Administration

Practical systems administration notes for production infrastructure work.

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Systems Administration Articles

Technical notes and guides tagged under Systems Administration.

ZFS failed to read pad2 area of primary vdev

There are number of issues that can lead to this error when trying to boot a FreeBSD server with ZFS as root / zroot: ZFS failed to read pad2 area of...

  • FreeBSD
  • partitioning
  • systems administration
  • ZFS
  • ZFS Boot
  • zroot
Published
Reading time
1 minute

FreeBSD OS Update Mirroring (freebsd-update)

Currently there is unfortunately no official way to mirror the OS updates that the freebsd-update downloads, however we have just open sourced our tool...

  • FreeBSD
  • freebsd-update
  • maintenance
  • systems administration
Published
Reading time
1 minute

MariaDB vs MySQL: Which Relational Database Should You Use?

MariaDB vs MySQL: Which Relational Database Should You Use? MariaDB and MySQL are both popular relational databases, and they are both similar in how they...

  • MariaDB
  • MySQL
  • systems administration
  • UNIX
Published
Reading time
5 minutes

What is Redis and Why You Should Use It

What is Redis and Why You Should Use It If you’re new to Redis, you may be wondering what exactly it is and who should use it. So, we spent some time...

  • database
  • Redis
  • systems administration
  • UNIX
Published
Reading time
7 minutes

Rocky Linux Makes a Comeback as a CentOS Alternative

Rocky Linux Makes a Comeback as a CentOS Alternative With CentOS 8 upgrades and support set to be discontinued at the end of December 2021, current users...

  • Linux
  • systems administration
Published
Reading time
6 minutes

What is Linux? Open Source 101 with A-Team Systems

What is Linux? Open Source 101 with A-Team Systems If you’re new to open source software, you’ve probably wondered “What is Linux?” There’s...

  • Linux
  • systems administration
  • UNIX
Published
Reading time
9 minutes

FreeBSD vs Linux: Which Open Source OS is Superior?

FreeBSD vs Linux: Which Open Source OS is Superior? FreeBSD vs Linux, which is superior? The answer isn’t so simple. Both have their strengths and...

  • FreeBSD
  • Linux
  • Performance
  • systems administration
Published
Reading time
10 minutes

SOLVED: FreeBSD + pip + virtualenv = file not found

We love python virtual environments, but under FreeBSD we occasionally see issues where pip is not correctly using the /usr/local/include and...

  • FreeBSD
  • Python
  • systems administration
Published
Reading time
1 minute

FreeBSD / pfSense on a Zotac ZBox: link state down and ‘re0: watchdog timeout’ errors

Recently we purchased a Zotac ZBOX-CI321NANO to replace our existing pfSense PC which was in a much larger case. There are a few variations but ours has...

  • firewall
  • FreeBSD
  • networking
  • pfSense
  • systems administration
Published
Reading time
1 minute

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