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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Systemd: Hidden Gems for a Better Linux (tadeubento.com)

submitted 1 year ago by TCB13 to c/[email protected]

88 comments fedilink hide all child comments

After a few conversations with people on Lemmy and other places it became clear to me that most aren't aware of what it can do and how much more robust it is compared to the usual "jankiness" we're used to.

In this article I highlight less known features and give out a few practice examples on how to leverage Systemd to remove tons of redundant packages and processes.

And yes, Systemd does containers. :)

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[–] Quazatron 21 points 1 year ago (1 children)

Very interesting article with lots of links that I'm sure to revisit often. I use Linux daily and was not aware of all the possibilities that systemd has to offer.

Some of the cruft I use nowadays to manage Linux machines can be optimized by simply moving over to the systemd equivalent. Of particular interest to me are: triggers, timers, file monitoring, and ntp.

[–] TCB13 6 points 1 year ago (2 children)

Thank you. NTP and DNS are the easiest to get into. Simply enable the services and move on.

[–] t0m5k1 5 points 1 year ago (1 children)

I stopped using resolved as it tends to ignore what I tell it to do and still grab DNS from the router which I don't want and can't disable on the proprietary router.

openresolv/Resolveconf was never broken in the first place so I'm not sure what systemd was trying to fix with this.

[–] TCB13 3 points 1 year ago* (last edited 1 year ago) (1 children)

That's most likely because... you didn't read the manual! :D

FallbackDNS= A space-separated list of IPv4 and IPv6 addresses to use as the fallback DNS servers. Please see DNS= for acceptable format of addresses. Any per-link DNS servers obtained from systemd-networkd.service(8) take precedence over this setting, as do any servers set via DNS= above or /etc/resolv.conf.

Assuming your network is DHCP, edit your config eg. /etc/systemd/network/10-eth0.network:

[DHCPv4]
UseNTP=no
UseDNS=no
UseHostname=no

Your system will not pick NTP and DNS servers and also ignore the hostname provided by the router. Also make sure you ln -sf /run/systemd/resolve/resolv.conf /etc/resolv.conf

https://www.freedesktop.org/software/systemd/man/systemd.network.html#%5BDHCPv4%5D%20Section%20Options

[–] [email protected] 1 points 1 year ago

not even that for ntp you just set it with timedatectl