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Update wiki on various topics This update is too large, I made too many notes on stuff. Nonetheless, it is very nice to see progress. I've made note revisions on the following topics: - Learning - Writing - Various Linux-related stuff I've yet to start learning illustration but I'll be starting tomorrow for an update how do I keep in mind with those writings. There are still a lot of things to be processed from the backlog with yet more notes on learning but I keep having those perspectives whenever I practice so ehhh... Better have those than nothing? Furthermore, I've also updated the timestamp format. It is pretty simple to update all of the notes with a couple of `sed` calls. Aaaand, I've also changed the way how the assets stored with the folders only leaving it up for the generated files instead of enforcing it on every note. I create more visual aids and managing them is a pain for each note. This restructuring frees me of that burden.
2021-07-20 11:52:43 +00:00
:PROPERTIES:
:ID: 20830b22-9e55-42a6-9cef-62a1697ea63d
:END:
Update notebook as of 2021-11-06 - Some updates to pacman as I'm going to trying to use Open Build Service which apparently has support for publishing Arch Linux packages. Pretty nice! - Starting to take more notes for Git as I use it beyond the simple commit and push workflow. I mostly use it to create patches for packaging other applications. - Updates for Drawabox.
2021-11-06 04:06:25 +00:00
#+title: systemd
Update my notes on stuff Some CLI tools, also forgot to commit to move the exercise solutions of SICP where it should be. The usual hierarchy notebook update.
2021-05-31 15:37:32 +00:00
#+date: "2021-05-20 22:37:22 +08:00"
Update Linux-related notes
2022-11-23 09:57:59 +00:00
#+date_modified: "2022-09-29 12:21:34 +08:00"
Update my notes on stuff Some CLI tools, also forgot to commit to move the exercise solutions of SICP where it should be. The usual hierarchy notebook update.
2021-05-31 15:37:32 +00:00
#+language: en
Add notes on various programs and Udacity program Mainly on the SUSE cloud native fundamentals scholarship program from Udacity along with various CLI programs I learnt to use over the days trying to complete it piecewise... Offhand comment, it is pretty nice so far.
2021-06-13 04:20:18 +00:00
#+property: header-args :eval no
Update my notes on stuff Some CLI tools, also forgot to commit to move the exercise solutions of SICP where it should be. The usual hierarchy notebook update.
2021-05-31 15:37:32 +00:00
systemd is a big tool for a big system.
Let's explore some of them from a perspective of a wannabe power user.
Update notebook as of 2021-08-07 With the few updates on more learning, writing, and some forward calls for archiving which I'll be jotting down for some ideas soon.
2021-08-07 04:00:20 +00:00
Among other things, it has the following list of features.
- [[id:f1b21fc8-86a5-47cd-b3d8-da6ac7a34427][systemd timers]] which can replace cron for task scheduling.
- [[id:cd5f0d04-d9bb-44e8-a0f2-630ea58c1e94][systemd services]] along with the usual antics of a service manager such as managing dependencies and commands to run when killed.
- [[id:a602f900-cdcf-4090-9278-d5926d80eedc][systemd transient units]] for quickly creating and scheduling one-off services.
Modularize the systemd features into its own notes
2021-08-09 06:04:42 +00:00
- [[id:14b49597-011c-4da1-b955-bed6059af4a3][systemd unit templates]] is handy for managing units that have common structure, enabling to start them quickly and dynamically.
- [[id:3c67e623-c269-4c9b-9bdf-4ad677d46a35][systemd environment directives]] enable setting environment variables from a systemd-ful session.
- [[id:e4dba4ef-71dd-4d30-9a2c-4ad97223510b][systemd-networkd]] is the network configuration manager in case you want to do [[id:a208dd50-2ebc-404d-b407-3ec2f556535e][Network configuration in Linux]].
- [[id:8505f1f0-f15b-4b04-91fc-12be01913ce6][systemd-boot]] is a bootloader mainly for UEFI-based systems.
- [[id:d83c099a-fc11-4ccc-b265-4de97c85dcbe][systemd-journald]] is the system logging service providing a structured way to manage your logs from different units.
Update systemd- and Neovim-related notes
2022-04-20 11:05:37 +00:00
- [[id:7fce893f-418f-42aa-b2b1-59d9f0993406][systemd unit hardening]] can help your services secure.
Update notebook as of 2021-08-07 With the few updates on more learning, writing, and some forward calls for archiving which I'll be jotting down for some ideas soon.
2021-08-07 04:00:20 +00:00
Update my notes on stuff Some CLI tools, also forgot to commit to move the exercise solutions of SICP where it should be. The usual hierarchy notebook update.
2021-05-31 15:37:32 +00:00
* systemd at user-level
Update the notebook The topics I've covered so far for Linux, package managers, archiving, and learning. I also updated some formatting for other notes especially with the command line references.
2021-07-29 15:26:51 +00:00
:PROPERTIES:
:ID: c7edff80-6dea-47fc-8ecd-e43b5ab8fb1e
:END:
Update my notes on stuff Some CLI tools, also forgot to commit to move the exercise solutions of SICP where it should be. The usual hierarchy notebook update.
2021-05-31 15:37:32 +00:00
systemd has the ability to run at user-level empowering the user to manage their own system with their own settings.
It immensely helps separating user-specific settings from the system-wide settings.
systemd looks for the units from certain paths.
You can look for them from the =systemd.unit.5= manual page.
To run systemd as a user instance, simply add a =--user= flag beforehand for =systemctl= and other systemd binaries, if applicable.
#+begin_src shell :results none
Update the Cloud native fundamentals course notes
2021-06-20 02:24:05 +00:00
# See how different the output when run at user- and system-level.
Update my notes on stuff Some CLI tools, also forgot to commit to move the exercise solutions of SICP where it should be. The usual hierarchy notebook update.
2021-05-31 15:37:32 +00:00
systemctl --user show-units
Update the Cloud native fundamentals course notes
2021-06-20 02:24:05 +00:00
systemctl show-units
Update my notes on stuff Some CLI tools, also forgot to commit to move the exercise solutions of SICP where it should be. The usual hierarchy notebook update.
2021-05-31 15:37:32 +00:00
systemctl --user show-environment
Update the Cloud native fundamentals course notes
2021-06-20 02:24:05 +00:00
systemctl show-environment
Update my notes on stuff Some CLI tools, also forgot to commit to move the exercise solutions of SICP where it should be. The usual hierarchy notebook update.
2021-05-31 15:37:32 +00:00
systemctl --user start $SERVICE
#+end_src
Update the notebook Not all changes are here though.
2022-01-09 04:24:55 +00:00
Update Linux-related notes
2022-11-23 09:57:59 +00:00
* Navigating systemd documentation
:PROPERTIES:
:ID: 352629df-916a-442a-b81c-af71ef34a475
:END:
Because of the wide scope of the tool, it is best to know where you can find certain information.
Here's an exhaustive list of the locations.
- Most sensible distributions should include the manual pages from the software.
systemd has a lot of them from knowing [[id:f1b21fc8-86a5-47cd-b3d8-da6ac7a34427][systemd timers]] at =systemd.timers.5=, the unit formats and their locations at =systemd.unit.5=.
Update the notebook Not all changes are here though.
2022-01-09 04:24:55 +00:00
- =systemd.directives.7= is an index of configuration directives including unit keys, environment variables, and command line options for systemd-related things.
Also contains the related manual pages for a deeper references.
[fn:: How did I pass a year without knowing this?]
Update systemd- and Neovim-related notes
2022-04-20 11:05:37 +00:00
- On a similar note, =systemd.index.7= is an alphabetical index of the important keywords found in systemd.
Update Linux-related notes
2022-11-23 09:57:59 +00:00
* Extra information
Update the notebook Not all changes are here though.
2022-01-09 04:24:55 +00:00
- =systemd.mount= units require the filename to be the mountpoint.
Though, it has to be converted to what systemd accepts (e.g., =systemd-escape --path $PATH=).
Update Linux-related notes
2022-11-23 09:57:59 +00:00
- systemd has a few usual units such as =default.target= which is a target for the current environment of the user.
It can be get with =systemctl get-default= command.
More can be seen with =systemd.special.7= from the manual.
- Not all units are equal as systemd treats some units specially.
You can see what these specific units are and what it does with =systemd.special.7= from the manual.
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