PSA Labs

proxmox: NIC issues with e1000e network adapters

Sun, 08 Feb 2026 00:00:00 +0000

Summary

Some Intel onboard NICs using the e1000e driver can intermittently lose network connectivity on Proxmox VE and repeatedly log errors like:

e1000e … Detected Hardware Unit Hang

This can cascade into Linux bridge ports being disabled (VM connectivity loss) and may trigger reboot/recovery automation if present.

A commonly used mitigation is to disable specific NIC offloads (especially TSO) and disable EEE (Energy Efficient Ethernet), then re-apply those settings on every boot using a systemd unit.

ubuntu: general maintenance

Sat, 07 Feb 2026 00:00:00 +0000

General Updates

Update One-liner

To Update without further confirmation:

sudo apt update -y && sudo apt upgrade -y

sudo apt update -y && sudo apt upgrade -y

Remove the -y flag to manually confirm actions

Fix Update Problems

Removes bad cached packages and re-download

sudo rm -f /var/cache/apt/archives/linux-headers-6.8.0-94_*.deb
sudo apt clean
sudo apt update
sudo apt --fix-broken install

sudo rm -f /var/cache/apt/archives/linux-headers-6.8.0-94_*.deb
sudo apt clean
sudo apt update
sudo apt --fix-broken install

If this has run successfully you can trigger updates, I had best success with removing obsolete packages beforehand

ubuntu: podman & podman compose

Sat, 07 Feb 2026 00:00:00 +0000

Choose the right container Setup

In the past i used docker a lot. Since they moved on more to please enterprises I prefer to use podman and podman compose.

Install Commands for podman & podman compose

sudo apt update
sudo apt install -y podman podman-compose
podman --version
podman compose version || podman-compose --version
systemctl --user enable --now podman.socket

sudo apt update
sudo apt install -y podman podman-compose
podman --version
podman compose version || podman-compose --version
systemctl --user enable --now podman.socket

Optional: make sure your user has a subuid/subgid range (needed for rootless features)

Code of Conduct

Wed, 21 Jan 2026 00:00:00 +0000

PSA Labs is a privacy-first, security-minded project. This page sets expectations for how we treat each other and how content is created.

Be respectful

Assume good intent, but be direct and constructive.
No harassment, hate speech, doxxing, threats, or personal attacks.
Keep discussions focused on the topic and the learning outcome.

Privacy-first by default

Don’t share personal data (yours or anyone else’s) in comments, issues, or submissions.
If you reference logs/screenshots, redact secrets, tokens, email addresses, IPs, and identifiers.
If a topic involves exploitation, keep it educational and defensive. No “how to break into X” content.

AI usage & transparency

AI may be used as a tool to improve clarity and speed up writing, but we do not publish unverified AI output.

macOS seamless authentication

Wed, 21 Jan 2026 00:00:00 +0000

If you do anything admin-related on macOS, you know the drill: a random dialog pops up, you type your password, you continue… and repeat that 20 times a day.

GUI prompts (System Settings, installers, “needs your password”, …) can use Touch ID and often Apple Watch confirmation.
Terminal sudo can be upgraded to use Touch ID as well (so you don’t have two authentication experiences).

Clamshell reality check:

Touch ID for sudo only works when a Touch ID sensor is available. With the MacBook lid closed, the built-in Touch ID button isn’t usable — you’ll need an external Touch ID keyboard. Apple Watch can approve many GUI prompts, but it won’t replace the password prompt for sudo.

Impressum

Tue, 20 Jan 2026 00:00:00 +0000

English version: Legal Notice (EN)

Angaben gemäß § 5 TMG

[Name / Firma] [Rechtsform, falls zutreffend] [Straße + Hausnummer] [PLZ Ort] [Land]

Kontakt

E-Mail: [E-Mail-Adresse]
Telefon: [Telefonnummer] (optional)

Vertretungsberechtigte Person(en)

[Geschäftsführer:in / Inhaber:in / Vertretungsberechtigte:r] (falls zutreffend)

Registereintrag (falls zutreffend)

Registergericht: [Registergericht]
Registernummer: [HRB/HRA/etc.]

Umsatzsteuer-ID (falls zutreffend)

Umsatzsteuer-Identifikationsnummer gemäß § 27a UStG: [USt-IdNr.]

Verantwortlich i.S.d. § 18 Abs. 2 MStV

[Name der verantwortlichen Person] [Anschrift]

Datenschutz / Privacy

Informationen zum Datenschutz und zur Website-Analyse findest du in unserer Privacy Policy. Wir verwenden Simple Analytics für eine datenschutzfreundliche Website-Analyse (wird nur nach Einwilligung geladen).

Legal Notice

Tue, 20 Jan 2026 00:00:00 +0000

German version: Impressum

Provider information (Sec. 5 TMG)

[Name / Company]
[Legal form, if applicable]
[Street + No.]
[Postal code, City]
[Country]

Contact

E-mail: [E-mail address]
Phone: [Phone number] (optional)

Authorized representative(s)

[Managing director / owner / authorized representative] (if applicable)

Company register (if applicable)

VAT ID (if applicable)

VAT identification number according to Sec. 27a UStG: [VAT ID]

Responsible for content (Sec. 18(2) MStV)

[Responsible person’s name]
[Address]*

Data protection / privacy

Information about data protection and website analytics can be found in our Privacy Policy. We use Simple Analytics for privacy-friendly website analytics (loaded only after consent).

Privacy Policy

Tue, 20 Jan 2026 00:00:00 +0000

This privacy policy explains how we process personal data when you use psalabs.eu.~~~~

1. Controller (data protection contact)

Controller within the meaning of Art. 4(7) GDPR:

[Name / Company] [Street + No.] [Postal code, City] [Country]

E-mail: [E-mail address] Website: https://psalabs.eu

2. Scope

This privacy policy explains how we process personal data when you:

visit this website,
contact us (e.g., by e-mail),
follow external links (e.g., to GitHub or YouTube),
and, if applicable in the future, interact with ads or tracking that we may add later.

We follow a privacy-first approach and, for the site itself, avoid third-party assets by default. See also: External Sources & Licenses.

Why you should care about IT-Security

Tue, 20 Jan 2026 00:00:00 +0000

Security is for everyone

In 2026, the digital world is connected more than ever. Everybody has a computer; they are just not the traditional computer anymore.

Yes, your smartphone on which you are currently reading this counts as a computer. Maybe in a more stretched way, but still, your device computes.

You doomscroll on it, communicate with friends and family over it, and you do your daily business with it.

About

Thu, 01 Jan 2026 00:00:00 +0000

Welcome to my Blog. I’m Pabu and this is my first public project to track everything that is relevant for my Job as a IT Security Analyst, Homelabber and Tech Inthusiast.

In the past I spent 10 Years as an IT System Administrator. I can’t stop tinkering with IT Infrastructure that’s why my Homelab is still my offside project.

Inspired from YouTubers like NetworkChuck, David Bombal and Christian Lempa I want to contribute to this world of cyber and tech.

External Sources & Licenses

Thu, 01 Jan 2026 00:00:00 +0000

This page lists third‑party components used by this website and links to their license texts.

Photography

Pexels — Pexels License License: https://www.pexels.com/license/ Notes: Individual photo credits are shown on the relevant article pages.

Fonts

JetBrains Mono — OFL 1.1 License: /licenses/jetbrains-mono-OFL.txt
IBM Plex Sans — OFL 1.1 License: /licenses/ibm-plex-sans-OFL.txt
IBM Plex Mono — OFL 1.1 License: /licenses/ibm-plex-mono-OFL.txt

Icons

Tabler Icons — MIT License: /licenses/tabler-icons-LICENSE.txt

Theme

Hugo Neso theme — MIT License: /licenses/hugo-neso-LICENSE.txt Notes: PSA Labs theme derives from the Hugo Neso base.

Tooling (build-time)

Hugo — Apache-2.0 License: /licenses/hugo-LICENSE.txt
Tailwind CSS — MIT License: /licenses/tailwindcss-LICENSE.txt
Fuse.js — Apache-2.0 License: /licenses/fusejs-LICENSE.txt