Activity for Michaelâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Answer | — |
A: Nerf an SSH login outside expected IP range authorizedkeys You can make restrictions, but it's clunky and not well-standardized. A `command` stanza on an authorized key works like the `ForceCommand` on SSHD Config. It runs the one specified command instead of your requested command or interactive session and then closes the connection. Obvi... (more) |
— | 11 months ago |
| Edit | Post #291361 | Initial revision | — | 11 months ago |
| Question | — |
Nerf an SSH login outside expected IP range Can I restrict myself from certain actions when I SSH in from outside a certain IP range? For instance no `sudo`? Maybe with /.ssh/authorizedkeys having a `from="!1.2.3.4/26"` option with some kind of `command="???"`? (more) |
— | 11 months ago |
| Comment | Post #291359 |
That user is the same one that posted
> Cat abuse refers to any harmful or cruel treatment of cats, such as physical violence, neglect, or abandonment. […]
on your [What is cat abuse/useless use of cat?](https://linux.codidact.com/posts/291136) question. I would take their commentary wi... (more) |
— | 11 months ago |
| Edit | Post #290797 |
Post edited: Newlines |
— | 12 months ago |
| Comment | Post #291289 |
Is `yq` the reaction to "they wouldn't let me put YAML into [`jq`'s I/O](https://jqlang.github.io/jq/manual/#io)?" (more) |
— | 12 months ago |
| Suggested Edit | Post #282528 |
Suggested edit: Link Canina. Move some parentheticals to footnotes. Minor grammar improvements. (more) |
helpful | 12 months ago |
| Edit | Post #291122 |
Post edited: More formatting inside quote block |
— | about 1 year ago |
| Edit | Post #291122 |
Post edited: Main section headings. Link hwdb(7). |
— | about 1 year ago |
| Edit | Post #291122 | Initial revision | — | about 1 year ago |
| Answer | — |
A: How do you remap mouse buttons? Wayland, ideally If you are on Wayland, the blessed way is to use the configuration for your desktop environment (DE) to map mouse keys and other input devices, except for a couple well-known options (eg left-handed mode and middle mouse emulation). Wayland, via `hwdb` If your DE doesn't hav... (more) |
— | about 1 year ago |
| Comment | Post #290163 |
Makes sense to me. It could save some poor sod from thinking you could pipe to `test` like this:
```sh
false | test || echo 'False!'
! false | test && echo 'True!'
```
You're inverting the exit code of `test`, not inverting `false` as someone might imagine. (Is this contrived? Yes, very. Is ... (more) |
— | about 1 year ago |
| Comment | Post #291099 |
From the question title, I thought you meant _syntax highlighting_ in the shell, which you can do with [`bat`](https://github.com/sharkdp/bat). Pipe your pretty (or existing) output to `bat` for colors. (more) |
— | about 1 year ago |
| Suggested Edit | Post #284502 |
Suggested edit: Fix Puppy link. Move all the links to a bibliography at the end. (more) |
helpful | about 1 year ago |
| Edit | Post #290990 |
Post edited: Links! |
— | about 1 year ago |
| Comment | Post #290987 |
You didn't ask for this, but there's also a tool I use for SSH: [`ssh-audit`](https://github.com/jtesta/ssh-audit). It's perhaps a little too opinionated about NIST curves and the NSA (but if you're concerned about the NSA, maybe that's important). Otherwise pretty helpful. (more) |
— | about 1 year ago |
| Edit | Post #290990 |
Post edited: Specifically mention crypto, because that's a main feature. |
— | about 1 year ago |
| Edit | Post #290990 |
Post edited: Rearrange the chart. Editorialize. |
— | about 1 year ago |
| Edit | Post #290990 |
Post edited: Table formatting on real site different from preview. |
— | about 1 year ago |
| Edit | Post #290990 | Initial revision | — | about 1 year ago |
| Answer | — |
A: How do I diagnose TLS errors? Over some period of time, I have used a couple tools for local TLS scans and diagnostics. One of them may include pointers for whatever situation you have. | Tool | Description | From | Current? | |------|-------------|------|----------| | `sslyze` | TLS analysis by protocol | | ✓ | | `ci... (more) |
— | about 1 year ago |
| Edit | Post #290475 |
Post edited: Hey look, another one. |
— | about 1 year ago |
| Edit | Post #290797 |
Post edited: Different run styles |
— | about 1 year ago |
| Comment | Post #290797 |
True. If your file was made with \*Nix-y tools, it probably has the trailing newline, though. (more) |
— | about 1 year ago |
| Edit | Post #290108 |
Post edited: Yet more ASCII chart tweaking |
— | about 1 year ago |
| Edit | Post #290108 |
Post edited: Better ascii art |
— | about 1 year ago |
| Edit | Post #290797 | Initial revision | — | about 1 year ago |
| Answer | — |
A: How to count the lines of a file? I think the typical way to do this uses `wc` ("word count") with the `-l` ("lines") option. ```sh $ wc -l /path/to/file 47 /path/to/file $ wc -l </path/to/file 47 $ cat /path/to/file | wc -l 47 ``` `wc` with no options prints the number of lines, words, and bytes, but `-l` can li... (more) |
— | about 1 year ago |
| Edit | Post #290544 |
Post edited: |
— | about 1 year ago |
| Edit | Post #290544 | Initial revision | — | about 1 year ago |
| Answer | — |
A: How do I safely replace brew on Big Sur? If you just want the minimal set of top-level packages to install on your new system, `brew leaves` is less verbose than CodeFarmer's `brew deps --installed`. You get a nice concise list of the packages that are not needed as dependencies by any other package. Edit: This is mentioned in the com... (more) |
— | about 1 year ago |
| Edit | Post #290108 |
Post edited: Diagram |
— | about 1 year ago |
| Edit | Post #290475 |
Post edited: Add another |
— | over 1 year ago |
| Edit | Post #290475 | Initial revision | — | over 1 year ago |
| Answer | — |
A: How to find your public IP address from command-line? There are probably myriad services for echoing your IP back over HTTP. Here are a couple: ```sh curl https://api.ipify.org curl https://ip.me curl https://icanhazip.com ``` (more) |
— | over 1 year ago |
| Edit | Post #282493 |
Post edited: Tag ssh |
— | over 1 year ago |
| Edit | Post #290108 |
Post edited: Workshop the first sentence some more. |
— | over 1 year ago |
| Edit | Post #290108 |
Post edited: Mention port forwarding, in case it's important to someone. |
— | over 1 year ago |
| Edit | Post #290108 |
Post edited: Mention multiple hops. |
— | over 1 year ago |
| Edit | Post #290108 |
Post edited: floating "them" -> actual concrete noun. |
— | over 1 year ago |
| Edit | Post #290108 |
Post edited: Add version where ProxyJump was introduced |
— | over 1 year ago |
| Edit | Post #290108 | Initial revision | — | over 1 year ago |
| Answer | — |
A: How to forward SSH access of one machine, through another, to the rest of a network? Grove's answer is likewise good, but OpenSSH introduced `ProxyJump` (`-J`) in 2016 with v7.3, making it even easier to chain SSH hosts together: ```bash ssh -J user@interstitial.example me@destination.example ``` "Real" port forwarding like Canina's answer still has important uses,[^1] but chai... (more) |
— | over 1 year ago |
| Suggested Edit | Post #282493 |
Suggested edit: Tag ssh (more) |
helpful | over 1 year ago |
| Comment | Post #289952 |
So you're just injecting the `-o` args on the next connection after a VPS reprovision? Not every time, yes? (more) |
— | over 1 year ago |
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