Archive for the ‘*nix-tools’ Category
Posted by jpluimers on 2024/11/18
Never too old to learn:
- [Wayback/Archive.is] Quit Nested SSH Sessions
works with ssh as well but is much simpler: press as many ~ as level of nest before . (by default, ~ is the escape character while . is to terminate ssh).
- [Wayback/Archive.is] How can I break out of ssh when it locks? – Ask Ubuntu
Notice that because hitting ~~ causes ssh to send the ~ instead of intercepting it, you can address N nested ssh connections by hitting ~ N times. (This only applies to ~s that directly follow an Enter.) That is to say that Enter~~~~~. terminates an ssh session 5 layers deep and keeps the other 4 intact.
So this is basically an extension of my 2017 blog post OpenSSH Escape Sequences (aka Kill Dead SSH Sessions) – The Lone Sysadmin (:
–jeroen
Posted in *nix, *nix-tools, Power User, ssh/sshd | Leave a Comment »
Posted by jpluimers on 2024/10/09
Note that the below methods likely will cause security warnings if a Windows machine has been properly configured, but in most cases at least one of them works.
- using cURL (Widows 10 and up)
curl --url https://speed.hetzner.de/100MB.bin --output %TEMP%\100MB.bin
- using [Wayback/Archive]
certutil | Microsoft Docs (at least Windows 7 and up; needs UAC elevation)
certutil.exe -urlcache -split -f https://speed.hetzner.de/100MB.bin %TEMP%\100MB.bin
- using PowerShell (at least Windows Vista and up)
powershell.exe -Command (New-Object System.Net.WebClient).DownloadFile('https://speed.hetzner.de/100MB.bin','%TEMP%\100MB.bin')
I think it works for all versions of curl, certutil, and PowerShell though I did not have anything older than up-to-date Windows 7 (having PowerShell version 3) and recent to test on.
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Posted in *nix, *nix-tools, .NET, Batch-Files, CommandLine, cURL, Development, Power User, PowerShell, PowerShell, Scripting, Software Development, Windows, Windows 10, Windows 11, Windows 7, Windows 8, Windows 8.1, Windows Development, Windows Vista | Leave a Comment »
Posted by jpluimers on 2024/09/10
Cover of “LaTeX: A Document Preparation System, 2nd edition”, Published by Addison-Wesley Professional (June 30, 1994) © 1994, authored by Leslie Lamport
LaTeX was slightly later than the 1992 Turbo Pascal 7.0 Language Guide having both entry in the manual about Recursion (“recursive loop, see recursive loop”) which of course is similar to “infinite loop” and entries for “infinite loop See loop, infinite” and “loop, infinite See infinite loop”.
So what is LaTeX?
Where Donald Knuth created the typesetting program TeX (visually TeX), Leslie created a set of macros for it, later named LaTeX (visually LaTeX) and wrote the first (still famous) book – cover on the right – on it: [Wayback/Archive] LaTeX: A Document Preparation System by Leslie Lamport, second edition, printed in 1994 back then by Addison-Wesley (now Pearson Education, subsidiary of Pearson plc) with ISBN 9780201529838.
It’s gimmick was at page 252, inside the index referring “infinite loop” to page 252 itself.
Many people keep posting screenshots of the page without referencing where it is from. That’s a bit sad, as these gimmicks are an important part of history where programming books were as much about explaining features of computing environment, as well as explaining underlying concepts like recursion.
So this 2024 post finally made me write this blog post: [Wayback/Archive] vx-underground on X: “HELP!”
[Wayback/Archive] GTv89dwWsAM05wM.jpg (552×639)
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Posted in *nix, *nix-tools, ffmpeg, History, ImageMagick, LaTeX, pandoc document converter, Power User, Typesetting | Leave a Comment »
Posted by jpluimers on 2024/09/05
It was about 2 years ago that Jilles reminded me I had a flight case with gadgets too.
Back when I assembled it in 2018, I had big plans for showing private “cloud” container experimentation and gadget stuff at conferences. Then 2019 kicked in with rectum cancer.
So it was good that he helped me motivating to get it working again, especially as the time around assembling it so much fun and working on it brought back those days.
Here are the pictures:
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Posted in *nix, *nix-tools, Cloud, Cloud Development, Containers, Debian, Development, Docker, GL-AR300M, GL.iNet, Hardware Development, Infrastructure, Kubernetes (k8n), Linux, openSuSE, Power User, Raspberry Pi, Raspbian, Software Development, SuSE Linux | Leave a Comment »
Posted by jpluimers on 2024/08/28
This is a really cool interactive [Wayback/Archive] nginx playground!
It starts with a default nginx configuration which you can edit and spins up a docker container for each run showing the results of that configuration.
How cool is that to learn how nginx works (:
This is how I found out about it:
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Posted in *nix, *nix-tools, Conference Topics, Conferences, Development, Event, nginx, Power User, Software Development, Web Development | Leave a Comment »
Posted by jpluimers on 2024/08/07
At the time of writing a lot of this might be more recent, but for quite some time codepoints.net had not been updated with code point information newer Unicode releases.
Basically it was stuck at Unicode version 8.0 with some 120k glyphs. At the time of writing Unicode version 15.0 is in beta and the difference between 15.0 and 8.0 is some 24k glyphs.
So I had a quick twitter chat with the author and jotted down the links in this blog post so I won’t forget them.
There I learned it was open source (I think it is the only Unicode codepoint site that is).
Here it goes:
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Posted in *nix, *nix-tools, Apache2, codepoints.net, Conference Topics, Conferences, Database Development, Debian, Development, DVCS - Distributed Version Control, Encoding, Event, GitHub, Linux, MySQL, PHP, Power User, Scripting, Software Development, Source Code Management, Unicode, Web Development | Leave a Comment »
Posted by jpluimers on 2024/07/23
Posted in *nix, *nix-tools, cron, Development, Hardware Development, Linux, Power User, Python, Raspberry Pi, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2024/07/12
Reminder to self to play around with [Wayback/Archive] Tailscale SSH · Tailscale
Tailscale SSH allows Tailscale to manage the authentication and authorization of SSH connections on your tailnet.
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Posted in *nix, *nix-tools, Hardware, Network-and-equipment, Power User, ssh/sshd, Tailscale, VPN, Wireguard | Leave a Comment »
The Wiert Corner - irregular stream of stuff 