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Marcus Holtz

Welcome to the Holtzweb blog

This is where my notes and documentation for my projects live.


Create a new password for every service or website you visit

Unique passwords for every service or website

Let’s hash some information into a password The creation of different passwords for every service or website you’re using can become a pain. Using a repeatable method to generate these passwor...

Setup Ephemeral Links for Secure Communication and Sharing

Piping Server for an in-house Magic Wormhole

Piping Server for an in-house Magic Wormhole and more cool tricks Have you ever used Magic Wormhole? I mean, of course you have - but let me just say… Magic Wormhole lets you share things from o...

Setup VLANs on OpenWRT with DSA on OPNsense

OpenWRT with DSA setup VLAN on OPNsense

OpenWRT Setup with DSA VLANs So, you have an OPNsense firewall. You have some VLANS set up on that firewall. You want to send that segregated traffic to your access point - and, have your wirele...

Turn Your Network Services Off When They're Not Needed

Turning Network Services Off At Specified Time

5pm turn off services when business hours end or while asleep at home Homelab Your homelab should boast, at max, 80% uptime. If you’re asleep - unable to respond, why have services running? ...

MacVLAN bridge for Traefik reverse proxy to communicate with Authentik

Authentik on a MacVLAN bridge with Traefik

Setting Up Bridged Docker MacVLAN Network for Authentik to Access Traefik I want to keep Traefik on it’s own IP, but now I need host to container communication to allow Authentik to pass tokens. ...

How-to guide with screenshots for setting up HAProxy Proxy Protocol and DNS on OPNsense with multiple sites

Visual Guide to OPNsense multi-site with HAProxy, Unbound

Screenshot tutorial to use OPNsense for a Reverse Proxy using multiple domains with splitdns REMOTE LOCATION What is the current system these screen shots are from? I am using two different de...

HAProxy on OPNsense can use the Proxy Protocol to send full header information to selective backends

OPNsense HAProxy Proxy Protocol to Traefik with original IP

HAProxy proxy protocol section Different backends based on URL. Domain specific routing with selective backend endpoints. Using HAProxy to route traffic based on SNI headers. HAProxy to Traefik...

Using OPNSense to serve Multi-site Split-DNS on Unbound and DNSCrypt-Proxy

OPNsense Unbound Multi-site Split-DNS with DNSCrypt

OPNsense DNS-crypt setup Part 1: Why Set Up DNSCrypt-Proxy on OPNsense You know, you can setup DNS-Crypt on your PiHole too! But mysetup is as follows: Computer > DHCP (from OPNsense) > D...

Hosting a vanity .onion address on the Tor network using Docker

Tor network hidden service with vanity .onion address using Docker

Using Tor script to create a Tor network hidden service with vanity .onion address and export a service to the internet Tor is not hidden “In our experiments we collected 173667 unique .onion add...

MacVLAN for a Traefik reverse proxy analytics in Grafana dashboards

Docker MacVLAN for Traefik analytics in Grafana dashboards

Setting Up a Docker MacVLAN Network for Traefik Visitor Access Log Web Analytics in Promtail/Loki/Grafana for Dashboard Visualization: A Comprehensive Guide I am working to pass the source IPs com...