

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

Aug 19, 2021 • 28min
2.5 Admins 52: Notflix
Netflix blocking residential IPs, Intel’s upcoming discrete graphics cards, and the finer points of connecting disks to a RAID controller.
Plugs
Achieving RPO/RTO Objectives with ZFS – Part 2
Jim was a guest on Linux Unplugged 418 discussing WireGuardNT
Support us on patreon
News
Netflix is adding residential IP addresses to its VPN blocklists
Intel Introduces New High-Performance Graphics Brand: Intel Arc
Free Consulting
We were asked about RAID controllers.
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.
CBT Nuggets
This episode is sponsored by CBT Nuggets – training for IT professionals or anyone looking to build IT skills. Go to cbtnuggets.com/25admins and sign up for a 7-day free trial.
See our contact page for ways to get in touch.

Aug 12, 2021 • 30min
2.5 Admins 51: Goodbye LISA
Why a large sysadmin conference shut down and what it means, roaming between multiple wireless access points, sending ZFS snapshots to the cloud, best practice for tunnelling between home and the cloud, and a novel use for old hard disks.
Plugs
Achieving RPO/RTO Objectives with ZFS – Part 1
Support us on patreon
News/Discussion
LISA Community Message
Feedback
We mentioned Spinning Rust Records who are on Twitter and Bandcamp.
Checkmk
Checkmk is the best way to monitor your complex and hybrid IT infrastructure, bridging the gap between IT Ops and DevOps Teams. Go to checkmk.com/25admins and try out the open source or enterprise edition.
CBT Nuggets
Training for IT professionals or anyone looking to build IT skills. Go to cbtnuggets.com/25admins and sign up for a 7-day free trial.
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.

Aug 5, 2021 • 30min
2.5 Admins 50: Optimal Airtime
Huge improvements for WireGuard on Windows, and a brief update on the Framework Laptop. Plus why RAID is not a backup, when to use bare metal vs VMs, choosing database types, and more.
Plugs
Let’s Talk OpenZFS Snapshots
Support us on patreon
News
New WireGuardNT shatters throughput ceilings on Windows
Framework’s lightweight modular laptop is a winner
Free Consulting
We were asked about RAID and whether similar disks die at the same time, Samba speed differences, VMs vs bare metal, and databases.
Checkmk
Checkmk is the best way to monitor your complex and hybrid IT infrastructure, bridging the gap between IT Ops and DevOps Teams. Go to checkmk.com/25admins and try out the open source or enterprise edition.
CBT Nuggets
Training for IT professionals or anyone looking to build IT skills. Go to cbtnuggets.com/25admins and sign up for a 7-day free trial.
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.

Jul 29, 2021 • 31min
2.5 Admins 49: Cuddle the Pegasus
Why the Pegasus spyware isn’t really anything new, a Windows vulnerability sends Jim and Allan down memory lane, what to do with old hard disks, your feedback, and more.
Plugs
FreeBSD TCP performance system controls
Support us on patreon
News
Leak uncovers global abuse of cyber-surveillance weapon
This World of Ours
New Windows 10 vulnerability allows anyone to get admin privileges
Free Consulting
We were asked about paying for password leak notifications, and what to do with old small hard disks.
Checkmk
Checkmk is the best way to monitor your complex and hybrid IT infrastructure, bridging the gap between IT Ops and DevOps Teams. Go to checkmk.com/25admins and try out the open source or enterprise edition.
CBT Nuggets
Training for IT professionals or anyone looking to build IT skills. Go to cbtnuggets.com/25admins and sign up for a 7-day free trial.
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.

Jul 22, 2021 • 31min
2.5 Admins 48: PR Problem
Jim’s hands-on with the modular and upgradeable Framework laptop, the details of Muse Group’s latest controversy, and when backing up to a Pi in your friend’s basement sometimes makes sense.
Plugs
Managing Boot Environments
Support us on patreon
News
Framework Laptop
Audacity’s new owner is in another fight with the open source community
Free Consulting
We were asked about off-site backups.
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.
CBT Nuggets
This episode is sponsored by CBT Nuggets – training for IT professionals or anyone looking to build IT skills. Go to cbtnuggets.com/25admins and sign up for a 7-day free trial.
See our contact page for ways to get in touch.

Jul 15, 2021 • 32min
2.5 Admins 47: ZFS Rules, LTO Drools
The current and future states of system performance across the whole stack, and backing up to tapes. Plus your feedback about clustered filesystems, a ZFS success story, and IPv6 devices.
News/Discussion
Computing Performance: On the Horizon
Free Consulting
We were asked about backing up to magnetic tape.
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.
CBT Nuggets
This episode is sponsored by CBT Nuggets – training for IT professionals or anyone looking to build IT skills. Go to cbtnuggets.com/25admins and sign up for a 7-day free trial.
See our contact page for ways to get in touch.

Jul 8, 2021 • 30min
2.5 Admins 46: Not Actively Supported
Windows 11 has been announced but some key details are still unknown, why you shouldn’t connect consumer-grade network storage devices to the Internet, optimizing Windows guests on KVM hosts, and how to get started with Sanoid.
Plugs
History of FreeBSD: Net/1 and Net/2: Path to Freedom
Support us on patreon
News
WD My Book NAS devices are being remotely wiped clean worldwide Western Digital My Book NAS
Hackers exploited 0-day, not 2018 bug, to mass-wipe My Book Live devices
Western Digital Users Face Another RCE
Windows 11 is much more than a new theme slapped onto Windows 10
Free Consulting
We were asked about optimizing Windows guests on KVM hosts, and how to get started with Sanoid.
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.
CBT Nuggets
This episode is sponsored by CBT Nuggets – training for IT professionals or anyone looking to build IT skills. Go to cbtnuggets.com/25admins and sign up for a 7-day free trial.
See our contact page for ways to get in touch.

Jul 1, 2021 • 29min
2.5 Admins 45: Weapons grade insecurity
Potentially serious vulnerabilities in military systems, a new ZFS feature that’s mostly for home users, and IPv6 on your LAN.
Plugs
FreeBSD Performance Observability
Support us on patreon
News/Discussion
Vulnerabilities in Weapons Systems
ZFS fans, rejoice—RAIDz expansion will be a thing very soon
Free Consulting
We were asked about identifying devices with IPv6 addresses on a local network.
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.
CBT Nuggets
This episode is sponsored by CBT Nuggets – training for IT professionals or anyone looking to build IT skills. Go to cbtnuggets.com/25admins and sign up for a 7-day free trial.
See our contact page for ways to get in touch.

Jun 24, 2021 • 30min
2.5 Admins 44: ZF yes!
Supply chain problems causing a rise in counterfeit chips, busting the myth about ZFS and RAM, gold VM images, and x86 routers.
Plugs
Introduction to ZFS replication
Support us on patreon
News
Chip shortages lead to more counterfeit chips and devices
Free Consulting
We were asked about how much RAM ZFS needs, gold VM images, and homebrew x86 routers.
CBT Nuggets
This episode is sponsored by CBT Nuggets – training for IT professionals or anyone looking to build IT skills. Go to cbtnuggets.com/25admins and sign up for a 7-day free trial.
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/twoandahalf and get started with $100 credit.
See our contact page for ways to get in touch.

Jun 17, 2021 • 30min
2.5 Admins 43: Find my bandwidth
A potential order of magnitude increase in HDD sizes, Amazon Sidewalk, dying SSDs, planning new systems, ssh vs VPN logins, and more.
Plugs
History of ZFS: Part 2: Exploding in Popularity
Support us on patreon
News/Discussion
Ultra-high-density hard drives made with graphene store ten times more data
Amazon devices will soon automatically share your Internet with neighbors
Free Consulting
We were asked about dying SSDs, push and pull backups with third-party hosting, ssh and VPN logins, and planning new systems.
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/twoandahalf and get started with $100 credit.
CBT Nuggets
This episode is sponsored by CBT Nuggets – training for IT professionals or anyone looking to build IT skills. Go to cbtnuggets.com/25admins and sign up for a 7-day free trial.
See our contact page for ways to get in touch.


