#TechTipThursday
To ensure condensate is safe to drain from your gas-fired unit, pass it through a condensate neutralizer.

Learn more: https://ow.ly/vsn151048Sf

#PVI #TechTipThursday #CondensateNeutralizer
November 5, 2026 at 3:19 PM
#TechTipThursday: tired of "divergent branches" on every pull?

git config --global pull.rebase true
git config --global rebase.autoStash true

Git asks every time because nobody ever told it the answer.

#Git #Linux #SysAdmin
November 5, 2026 at 3:11 PM
To avoid incomplete combustion and potentially hazardous operational issues, ensure your water heater has adequate air supply.

Learn more: https://ow.ly/yOaO50ZWWyS

#PVI #TechTipThursday #AirSupply
October 29, 2026 at 12:30 PM
#techtipthursday: stop re-running the same command to see if something changed.

watch -n 5 'df -h /var'

It reruns every 5 seconds and updates in place. Add -d to highlight what changed. Ctrl+C to stop. Your up arrow and Enter finger can take the afternoon off.

#linux #cli #sysadmin
October 22, 2026 at 3:15 PM
To achieve optimal efficiency and extend equipment life, ensure the combustion air that your unit receives is free of chemical contaminants like Chlorine and HFCs.

Learn more: https://ow.ly/T0vq50ZWWx9

#PVI #TechTipThursday #CombustionAir
October 22, 2026 at 1:25 PM
Keeping your water quality at an optimal level will help to ensure your water heater operates at peak efficiency.

Visit: https://ow.ly/uwyv50ZShjY

#PVI #TechTipThursday #WaterQuality
October 15, 2026 at 1:55 PM
#techtipthursday: stop stashing every time a hotfix lands.

git worktree add ../hotfix main

Checks out main in its own folder, same repo. Fix the bug there, come back, feature branch untouched.

Your stash was never meant to be a filing cabinet.

#git #devops #cli
October 15, 2026 at 2:05 PM
Incorporate manufacturer venting requirements in the early stages of a project to ensure proper routing space is available and avoid costly change orders.

Visit: https://ow.ly/gkCe50ZSglm

#PVI #TechTipThursday #VentingRequirements
October 8, 2026 at 2:25 PM
#techtipthursday: let git find the commit that broke it.

Something worked three weeks ago and doesn't now, and there are two hundred commits in between. Stop reading diffs:

git bisect start
git bisect bad
git bisect good abc1234

Git checks out the midpoint […]

[Original post on mastodon.social]
October 8, 2026 at 3:06 PM
#techtipthursday: stop committing five unrelated things at once.

You fixed a bug, renamed a variable, and left a debug line in there. git add . takes all of it. Instead:

git add -p

Git walks the change hunk by hunk and asks about each one. y to stage it, n […]

[Original post on mastodon.social]
October 1, 2026 at 2:08 PM
#techtipthursday: you didn't actually lose that commit.

Bad rebase, hard reset, deleted branch. Before you panic:

git reflog

It's a log of everywhere HEAD has been, including commits that aren't on any branch anymore. Find the hash from before things went […]

[Original post on mastodon.social]
September 24, 2026 at 2:07 PM
If your flue temperature is too hot, ensure the recirculation loop is connected to the provided port. Tying it into the cold line on a condensing unit can cause high exhaust temperatures and loss of efficiency.

Learn more: https://ow.ly/TE8h50ZIqus

#PVI #TechTipThursday #FlueTemperature
September 24, 2026 at 1:15 PM
Ensure your water heater has adequate air supply to avoid incomplete combustion and potentially hazardous operational issues.

Learn more: https://ow.ly/HqCV50ZIqsL

#PVI #TechTipThursday #AirSupply
September 17, 2026 at 2:15 PM
#techtipthursday: stop losing long jobs to a dropped SSH session.

Before you kick off that big rsync:

tmux new -s migration

It runs on the server, not in your terminal. Ctrl+b then d to detach, close the laptop, walk away. Come back with tmux attach -t […]

[Original post on mastodon.social]
September 17, 2026 at 2:05 PM
Stop drowning in logs:

journalctl -p err -b

Every error from the current boot, nothing else. Add -u nginx -f to follow one service live.

Logs are like receipts. Useless until you desperately need one.
#linux #sysadmin #techtipthursday
September 10, 2026 at 2:07 PM
If installed in a cold winter climate, either insulate or use double wall pipe for the intake combustion air to control the condensation of airborne moisture in the combustion air.

Learn more: https://ow.ly/WmfM50ZIqsn #PVI #TechTipThursday #CombustionAir
September 10, 2026 at 2:10 PM
#techtipthursday: installing NVIDIA drivers on Fedora.

Skip the .run file from NVIDIA's site. Enable RPM Fusion nonfree, then:

sudo dnf install akmod-nvidia

Give it a few minutes to build before you reboot. Secure Boot? You'll need to sign it.

#linux #fedora #nvidia
September 3, 2026 at 2:07 PM
When using a zero governing regulator in a water heater, a drop in supply gas pressure from static to dynamic greater than 1.5” may indicate an issue with the volume of gas supplied to the heater.

Learn more: https://ow.ly/GSHz50ZC18n

#PVI #TechTipThursday #ZeroGoverningRegulator
August 27, 2026 at 2:00 PM
Avoid short circuits on your water heater. When in doubt, always double-check the wiring diagram for your unit.

Learn more: https://ow.ly/4ss350ZwMbz #PVI #TechTipThursday #Wiring
August 20, 2026 at 2:20 PM
#techtipthursday: something's already on port 8080 and you don't know what.

ss -tulpn

Sockets, TCP, UDP, listening, with process name and PID. One command and you know exactly what's squatting on the port.

netstat's been deprecated for years. ss is faster and already installed.
#linux #sysadmin
August 20, 2026 at 2:26 PM
📲 #TechTipThursday

OneDrive or SharePoint? Think "my work" vs. "our work."

✅ OneDrive = personal drafts & work in progress
🤝 SharePoint = shared team files & final versions

Rule of thumb: Start in OneDrive, move to SharePoint when it becomes team content.

#Microsoft
July 16, 2026 at 6:56 PM
#TechTipThursday 🔐

Protect your accounts with MFA + passkeys.

Enable Multi-Factor Authentication (MFA) on every account, and use passkeys whenever possible. Together, they provide stronger protection against phishing and account takeovers than passwords alone.

#CyberSecurity
July 2, 2026 at 6:14 PM
#TechTipThursday: a few journalctl commands worth keeping handy on Rocky Linux.

journalctl -b -- current boot only
journalctl -f -- follow in real time
journalctl -u sshd -- filter by service
journalctl -p err -- errors and above

#RockyLinux #Linux #SysAdmin #systemd
June 18, 2026 at 3:12 PM
#TechTipThursday: before you disable SELinux on Rocky Linux, learn to read it.

getenforce -- check current mode
sudo ausearch -m avc -ts recent -- see recent denials
sudo setenforce 0 -- permissive mode for troubleshooting

#RockyLinux #Linux #SELinux #SysAdmin
June 11, 2026 at 7:35 PM
#TechTipThursday: pin packages to a specific version on Rocky Linux with dnf versionlock.

sudo dnf versionlock add -- lock it
sudo dnf versionlock list -- see what's pinned
sudo dnf versionlock delete -- release it

#RockyLinux #Linux #SysAdmin
June 4, 2026 at 3:05 PM