Posted by jpluimers on 2026/11/10
B0rk always has interesting blog posts. This time a Python based one: [Wayback/Archive] Behind “Hello World” on Linux.
It teaches a whole lot of process loading and execution on Linux.
Via [Wayback/Archive] 🔎Julia Evans🔍 on Twitter: “behind “hello world” on Linux”
–jeroen
Posted in *nix, *nix-tools, Debugging, Development, Linux, Power User, Python, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2026/11/04
Voor mijn link archief als ik er aan toe kom om ook een PQC web-site in te richten: [Wayback/Archive] Volledig Post-Quantum Cryptografie website, een mooi artikel van [Wayback/Archive] Harld (@harld@masto.ai) – Mastodon die sommigen kennen van een of meer van deze sites:
Via
Posted in *nix, *nix-tools, Apache2, Certificates, Development, Encryption, HTTPS/TLS security, PKI, Power User, PQC, Public Key Cryptography, Security, Software Development, Web Development | Leave a Comment »
Posted by jpluimers on 2026/10/21
This post is a reminder to self to really work on rsync backup of your ESXi box: How to make a statically linked rsync binary.
I’m still catching up on things that happened during my (recovery) of all the cancer treatments in the 2019-2022 time frame.
Which is why I missed two things (actually three if you count the long list of rsync changes up to the current version).
The first is to install the static rsync 3.1.3 binary that runs on ESXi (at least versions 5 through 7, likely 8 as well) on some of my various ESXi boxes.
This is how you get it: Read the rest of this entry »
Posted in *nix, *nix-tools, C, Development, ESXi5, ESXi6, ESXi6.5, ESXi6.7, ESXi7, ESXi8, gcc, Power User, rsync, Software Development, Virtualization, VMware, VMware ESXi | Leave a Comment »
Posted by jpluimers on 2026/10/20
I have been using rsync for years now to sync directories around on VMware ESXi systems with great success.
Usually when upgrading to new physical machines, I synced the things to migrate to a big disk, then physically mounted that disk in a new machine.
Not this time: because of an unscheduled event I had to bring up the target machine in a different place before I could assemble the data on the big disk.
But since there was a network tunnel between the networks of both ESXi machines, I wanted to transfer over ssh: a thing I had done numerous times between various Linux and unix machines.
The cool thing is that rsync supports remote connections over ssh out of the box. Between ESXi machines, I bumped into this error though:
sh: rsync: not found rsync: connection unexpectedly closed (0 bytes received so far) [Receiver] rsync error: error in rsync protocol data stream (code 12) at io.c(226) [Receiver=3.1.2] Command exited with non-zero status 12
The last three lines are collateral of the first line, which I queried [Wayback/Archive] “sh: rsync: not found” – Google Search. Further below I will go deeper into the rabbit-hole I took, but the actual solution was to Read the rest of this entry »
Posted in *nix, *nix-tools, ash/dash, ash/dash development, BusyBox, Development, ESXi6, ESXi6.5, ESXi6.7, man/manual pages, OpenSSH, Power User, rsync, Scripting, Software Development, SSH, ssh/sshd, Virtualization, VMware, VMware ESXi | Leave a Comment »
Posted by jpluimers on 2026/10/05
This archive seems to have very recent HTML5 renderings of many man pages from their troff or mdoc sources: [Wayback/Archive] Man Pages | ManKier.
I bumped into it via [Archive/Archive] ipmitool: utility for controlling IPMI-enabled devices | ipmitool Commands | Man Pages | ManKier when writing Some links on Dell R730xd fan noise.
The site is not only very up-to-date on rendered man pages, but the rendering has great features too. Read more on those at [Wayback/Archive] About | ManKier.
A nice history on how ManKier came to be is at [Wayback/Archive] Blog – ManKier. It’s less than a dozen posts, and recommended reading.
Oh, I almost forget: I have added the man search shortcut to my browsers; these two examples should get you going by adding www.mankier.com/?q=%s as a search template:
Posted in *nix, *nix-tools, Conference Topics, Conferences, Event, man/manual pages, mankier, Power User | Leave a Comment »
Posted by jpluimers on 2026/10/02
Some combinations of hardware/OS will result in high FAN speed despite low power usage on Dell R730/R730xd systems.
For me, altering the BIOS or iDRAC thermal settings did not solve it, nor did updating all firmwares to the most recent versions, so I went digging further.
Below are some links in case I want to resolve that (after figuring out that Dell R730 and R730xd are 13G systems).
There are lots of quotes in them as it will help me find back the information later on.
Note to self: I really wonder what the difference between raw 0x30 0xce and raw 0x30 0x30 is (I think 3rd party PCIe support and forced fan speed level) and how they differ from the system.thermalsettings.ThirdPartyPCIFanResponse setting.
Posted in *nix, *nix-tools, Dell PowerEdge R730, Hardware, man/manual pages, mankier, Power User | Leave a Comment »
Posted by jpluimers on 2026/09/29
Just in case I ever want to migrate a repository from SourceForge to GitHub: [Wayback/Archive] ipmitool/sf2gh: migrates tickets to GH from SF
This was developed for the Gene Ontology but is generic and will work for any project.
The project consists of two files, the extensive [Wayback/Archive] sf2gh/README.md at master · ipmitool/sf2gh · GitHub which has a very important tip:
Posted in cURL, Development, DVCS - Distributed Version Control, git, GitHub, JavaScript/ECMAScript, Perl, Software Development, Source Code Management, SourceForge | Leave a Comment »
Posted by jpluimers on 2026/09/28
Not using vim much, so every time I need it for more complex things than basic editing or leaving any vi based text editor (hello <Esc> :q!), I need a FAQ or cheat sheet.
I like this one the most as it has merged most if not all other cheat sheets in it: [Wayback/Archive] ikwyl6 vim cheat sheet.
The above page is the [Wayback/Archive] CDN for your source code | raw.githack.com hosted version of the HTML page in the repository [Wayback/Archive] GitHub – ikwyl6/vim-cheat-sheet-html: Collaboration of vim cheat sheets I’ve found and put them in a html file.
That means you can contribute to it with more vim features in case they become available.
By intent, the cheat sheet looks like [Wayback/Archive] Vim Cheat Sheet – vim.rtorr.com, but it omits the tips bits like:
Posted in *nix, *nix-tools, CDN (Content Delivery Network), Cloud, Hosting, Infrastructure, Power User, vi/vim | Leave a Comment »
Posted by jpluimers on 2026/09/21
I forgot to queue up what I figured out in 2017, so here it finally is: install [Wayback/Archive] lesspipe.sh, a preprocessor for less download | SourceForge.net and integrate it.
Posted in *nix, *nix-tools, Linux, openSuSE, Power User, SuSE Linux | Tagged: 305 | Leave a Comment »
Posted by jpluimers on 2026/09/17
For my future self: [Wayback/Archive] Jan-Piet Mens :: Deploying SSH host keys and certificates with Ansible
--jeroen
Posted in *nix, *nix-tools, Development, DevOps, Infrastructure, Power User, Scripting, Software Development, ssh/sshd, YAML | Leave a Comment »
