today's howtos

posted by Roy Schestowitz on May 01, 2023

• How to install Cockpit for Linux

  While many Linux administrators work primarily with the command line interface, not every Linux admin is so confident with commands. Sysadmins with a Windows background or technicians that manage IoT devices may be more comfortable with a GUI such as Cockpit.

  Cockpit provides a graphical view of virtually all the monitoring tools admins might need and supports services such as virtualization and containerization. To install Cockpit, there are many installation options and multi-server use cases, including key-based authentication. Red Hat sponsors Cockpit, but it readily supports non-Red Hat-based distributions.

• How to Mirror Your Android Screen to PC or Mac Without Root [Ed: The headline does not match the summary, which also says "Linux". Stop calling Windows "PC".]

  Want to mirror your Android screen to a PC, Mac, or Linux? Here's a free and easy way to share your Android's screen on your computer.

• 2023-04-28 [Older] How to install Gnome 2048 on a Chromebook

• 2023-04-25 [Older] How to install the Brave Beta Browser on a Chromebook in 2023

• 2023-04-25 [Older] How to install CLion on Linux Lite 6.2

• 2023-04-24 [Older] How to install OpenTTD on Linux Lite 6.2

• 2023-04-24 [Older] How to install the Vivaldi Browser on a Chromebook in 2023

• 2023-04-22 [Older] How to install ONLYOFFICE on a Chromebook in 2023

• 2023-04-25 [Older] How to RMA Your Steam Deck When Something Goes Wrong

• 2023-04-28 [Older] Cow-encryptor Turns Your Secret Documents Into a Series of Moos

• Jon Chiappetta: Pseudo-Bridging Layer-2 ARP-Sync

  So back in the day I was trying to bridge two layer-2 networks over a wireless relay and I was using a TP-Link Archer C7V5 for the two routers. I initially tried out relayd however I found that it wasn’t doing a good job at managing the ARP/route table entries as they were getting out of sync and not being updated and refreshed properly. I tried modding the framework but eventually gave up and wrote my own solution in C because these router units had very limited RAM and CPU available. The original framework was called ARP-Relay-Bridge (arprb) and it did a lot of work to manage the ARP table, PING the clients, listen for ARP Requests, send Proxied Replies, manage the routing table

• Digital Aerochrome

  A long long time ago in the 70s there was a lot of interesting film being made. At this time film was used for everything, professional and consumer cameras, movies, aerial photography. A lot of time has gone into recreating film looks for digital cameras now to reproduce the color response of the old film cameras.

• Os.walk, the temptation of hammers, and the paralysis of choice

  I have a shell script to give me a hierarchical, du-like report of memory usage broken down by Linux cgroup. Even back when I wrote it, it really needed to be something other than a shell script, and a recent addition made it quite clear that the time had come (the shell script version is now both slow and inflexible). So as is my habit, I opened up a 'memdu.py' in my editor and started typing. Some initial functions were easy, until I got to here: [...]