

2.5 Admins
The Late Night Linux Family
2.5 Admins is a podcast featuring two sysadmins called Allan Jude and Jim Salter, and a producer/editor who can just about configure a Samba share called Joe Ressington. Every week we get together, talk about recent tech news, and answer some of your admin-related questions.
Episodes
Mentioned books

May 5, 2022 • 32min
2.5 Admins 89: Warm Storage
How long optical disks last and why cold storage isn’t usually worth it, VM security, more thoughts on crypto nonsense, and more.
Plugs
Learning the Fundamentals of the FreeBSD Shell
Support us on patreon
Feedback
Twitter thread about optical media longevity
Qubes OS
Free Consulting
We were asked about exporting VMs.
Linode
Simplify your cloud infrastructure with Linode’s Linux virtual machines and develop, deploy, and scale your modern applications faster and more easily. Go to linode.com/25a and get started with $100 credit.
See our contact page for ways to get in touch.

Apr 28, 2022 • 30min
2.5 Admins 88: Great Scott
Musk buys Twitter, Ubuntu’s ZFS on root snapshot tool is put on the back burner, and setting up your own apt mirror.
Plugs
Build your own NAS, Part 2: Tuning
Support us on patreon
News
Elon Musk strikes deal to buy Twitter for $44bn
Tweet from Rik Mills (Ubuntu & Kubuntu developer)
Launchpad bug to remove ZFS-on-root from Ubiquity installer
zsys removed from the 22.04 installer
Free Consulting
We were asked about running setting up your own apt mirror.
Kolide
Endpoint Security for Teams That Slack – Try for Free Today! https://l.kolide.co/3LpQbqk
Linode
Simplify your cloud infrastructure with Linode’s Linux virtual machines and develop, deploy, and scale your modern applications faster and more easily. Go to linode.com/25a and get started with $100 credit.
See our contact page for ways to get in touch.

Apr 21, 2022 • 30min
2.5 Admins 87: Unplanned Obsolescence
Yet another IoT company abandons its customers, ridiculous “hard drives”, Postrges with containers, and cloud storage that isn’t quite as good as it sounds. With guest host Alex Kretzschmar from the Self-Hosted podcast.
Plugs
Building Your Own FreeBSD-based NAS with ZFS
Support us on patreon
News
Insteon looks dead—just like its users’ smart homes
Feedback
Harder Drive: Hard drives we didn’t want or need
Jottacloud
Free Consulting
We were asked about ZFS and multipath, and running Postgres with containers.
Linode
Simplify your cloud infrastructure with Linode’s Linux virtual machines and develop, deploy, and scale your modern applications faster and more easily. Go to linode.com/25a and get started with $100 credit.
See our contact page for ways to get in touch.

Apr 14, 2022 • 31min
2.5 Admins 86: Reluctant Sysadmin
The new features in OpenSSH, an embarrassing outage, the ugly side of Apple’s AirTags, and securing SSH keys when using Git. With guest host Dalton Durst from Linux After Dark.
Plugs
Improving Replication Security With OpenZFS Delegation
Support us on patreon
News
OpenSSH 9.0 released
At last, Atlassian sees an end to its outage – in two weeks
Police Records Show Women Are Being Stalked With Apple AirTags Across the Country
Apple: What to do if you get an alert that an AirTag is with you
AirGuard – AirTag protection
Tom Scott video
Free Consulting
We were asked about securing SSH keys when using Git.
Kolide
Endpoint Security for Teams That Slack – Try for Free Today! https://l.kolide.co/3LpQbqk
Linode
Simplify your cloud infrastructure with Linode’s Linux virtual machines and develop, deploy, and scale your modern applications faster and more easily. Go to linode.com/25a and get started with $100 credit.
See our contact page for ways to get in touch.

Apr 7, 2022 • 29min
2.5 Admins 85: Textbook Scam
CAPTCHAs in phishing attacks, Jim gets angry about Bitcoin propaganda in schools, and packet loss with UDP.
Plugs
Tuning OpenZFS Record size
Support us on patreon
Discussion
How CAPTCHA puzzles cloak phishing page URLs in emails
Jim gets mad about crypto propaganda in schools
Free Consulting
We were asked about packet loss with UDP.
Linode
Simplify your cloud infrastructure with Linode’s Linux virtual machines and develop, deploy, and scale your modern applications faster and more easily. Go to linode.com/25a and get started with $100 credit.
See our contact page for ways to get in touch.

Mar 31, 2022 • 32min
2.5 Admins 84: Open Source Sabotage
An open source dev goes rogue, a big single sign-on provider is compromised, self-hosting DNS, and more.
Plugs
Should I upgrade to OpenZFS 2.1?
Support us on patreon
News
BIG sabotage: Famous npm package deletes files to protest Ukraine war
The Fragile Open Source Ecosystem Isn’t Ready for ‘Protestware’
Okta Hack Exposes A Huge Hole In Tech Giant Security: Their Call Centers
Microsoft: Lapsus$ Used Employee Account to Steal Source Code
Lapsus$ found a spreadsheet of passwords as they breached Okta, documents show
Free Consulting
We were asked about switches, and self-hosting DNS.
Allan’s DNS Made easy affiliate link
Linode
Simplify your cloud infrastructure with Linode’s Linux virtual machines and develop, deploy, and scale your modern applications faster and more easily. Go to linode.com/25a and get started with $100 credit.
See our contact page for ways to get in touch.

Mar 24, 2022 • 32min
2.5 Admins 83: Solid State Bathtubs
SSD reliability, a huge potential amplification DDoS attack, and learning how a mail server works.
Plugs
Webinar: Improving Recovery Objectives with OpenZFS
Support us on patreon
News
Backblaze report finds SSDs as reliable as HDDs
New method that amplifies DDoSes by 4 billion-fold. What could go wrong?
Free Consulting
We were asked how to learn the inner workings of a mail server.
Postfix, Virtual Domain Setup
Linode
Simplify your cloud infrastructure with Linode’s Linux virtual machines and develop, deploy, and scale your modern applications faster and more easily. Go to linode.com/25a and get started with $100 credit.
See our contact page for ways to get in touch.

Mar 17, 2022 • 29min
2.5 Admins 82: Oil, Gold, and Firstborn
Our concerns about Google’s latest acquisition, the technical implications of the sanctions on Russia, more on VPNs and filesystem replacements, and using Nagios with Sanoid.
Plugs
Controlling Resource Limits with RCTL in FreeBSD
Support us on patreon
News
Google makes second-largest acquisition ever: $5.4 billion for Mandiant
Internet backbone Cogent cuts Russia connectivity
Internet backbone provider Lumen quits Russia
Another Step Towards The Russian Splinternet
Russia faces IT crisis with just two months of data storage left
Cloudflare, Akamai defend decision to stay in Russia
Free Consulting
We were asked about using Nagios with Sanoid.
Reddit thread
Linode
Simplify your cloud infrastructure with Linode’s Linux virtual machines and develop, deploy, and scale your modern applications faster and more easily. Go to linode.com/25a and get started with $100 credit.
See our contact page for ways to get in touch.

Mar 10, 2022 • 30min
2.5 Admins 81: Don’t Pay
How not to solve some of the problems with filesystems, why backups are only part of defending your data, and Allan finally tells us the difference between FreeBSD and OpenBSD.
Plugs
NFS Sharing with ZFS
Support us on patreon
Discussion
Backups ‘no longer effective’ for stopping ransomware attacks
Where Did I Put That File?
Free Consulting
We were asked about the difference between FreeBSD and OpenBSD.
Linode
Simplify your cloud infrastructure with Linode’s Linux virtual machines and develop, deploy, and scale your modern applications faster and more easily. Go to linode.com/25a and get started with $100 credit.
See our contact page for ways to get in touch.

Mar 3, 2022 • 29min
2.5 Admins 80: 100 Emoji
Browser version numbers might break websites, Samsung’s bad crypto implementation, more on Mazda and Caddy, the FreeBSD init system, and keeping VMs in sync between the two physical hosts.
Plugs
UNIX Philosophy: The ideas that made UNIX
Improving Recovery Objectives with OpenZFS
Support us on patreon
News
Three major browsers are about to hit version 100. Will websites cope?
Samsung shipped ‘100m’ Android phones with flawed encryption
Free Consulting
We were asked about the FreeBSD init system, and VMs in sync between the two physical hosts.
The FreeBSD Boot Process
reboot -r on untrusted system
Linode
Simplify your cloud infrastructure with Linode’s Linux virtual machines and develop, deploy, and scale your modern applications faster and more easily. Go to linode.com/25a and get started with $100 credit.
See our contact page for ways to get in touch.


