René Mayrhofer
René Mayrhofer
Home
Publications
Presentations
Posts
Courses
Projects archive
Contact
Light
Dark
Automatic
Linux
Firewall throughput measurements: OPNsense on APU4d4, OPNsense in a Proxmox VM, and OpenWRT on Turris Omnia
Getting OPNsense to perform well on a low-powered CPU, e.g. the APU4d4 board, can be tricky. As there are some open questions, this post summarizes some measurements taken in a home lab setup.
Last updated on 2022-11-20
7 min read
A highly personal take on KDE vs. Gnome over two decades
I have been using KDE since 1998 and keep coming back to it even though I have tried Gnome in many versions and varients. A highly personal report why configurability is good for an expert work tool.
Last updated on 2020-11-20
8 min read
Settings for Flatpak sandboxing for the Zoom Linux client
The Flatpak package of the Zoom Linux client is better than installing native because of Flatpak sandboxing capabilites. This short post summarizes the settings I use to make it work.
Last updated on 2020-07-23
1 min read
Enabling per-device traffic analysis with separate VLANs, 802.1x MAC based authentication, and OpenWRT
Why For analysing what devices do on a network - specifically the shared medium of a wireless LAN - just packet tracing based on IP address is often not sufficient. There are multicasts, the initial DHCP requests, and potentially other types of traffic not captured by that.
Last updated on 2020-12-18
9 min read
Transparent Tor-ifying VLAN (separated WLAN SSID) with OpenWRT
Why Tor allows to anonymize Internet traffic through onion routing, typically via 3 separate hops. At INS, we run one of the fastest Tor exit nodes in Austria, and provide statistical data on its usage.
Last updated on 2019-04-11
6 min read
Gibraltar firewall
[Finished/closed] A Linux firewall/UTM distribution with read-only root file system.
Gibaltar product web page
Using the Austrian 'Buergerkarte' under Linux
Disclaimer This web page is written primarily in English, but uses German words originating from the Austrian law. There seems to be little point in artificially translating these terms when they are special definitions of a law written in German.
Last updated on 2022-11-20
24 min read
DVCS-Autosync
[Finished/stopped] A personal Dropbox replacement based on Git
IPsec/L2TP gateway for Android and iPhone clients on OpenWRT
How to set up an OpenWRT router/gateway as an IPsec/L2TP gateway for Andoid and iPhone clients The only “reasonable” (that is, not counting PPTP due to its known security issues) VPN protocol supported by default on non-rooted / non-jailbroken Android / iPhone phones as clients is the combination of IPsec and L2TP.
Last updated on 2019-03-24
7 min read
SSD Linux benchmarking: Comparing filesystems and encryption methods
Introduction After (again) suffering under KMail’s recent sluggishness when dealing with my email spool and general Eclipse slowness when run with many plugins (such as the excellent Android ADT or the still-to-mature Scala plugin), I decided that the best update for my Lenovo Thinkpad X201s laptop would be a solid state disk (SSD).
Last updated on 2019-03-24
13 min read
»
Cite
×