Systemd tips and tricks: Difference between revisions

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== How to permanently disable EEE (Energy Efficient Ethernet) on network card ==
{{Status
'''Energy-Efficient Ethernet''' ('''EEE''') is a set of enhancements<ref>https://en.wikipedia.org/wiki/Energy-Efficient_Ethernet</ref>. To disable EEE on network card we can use systemd service unit to run the ethtool command (e.g. /etc/systemd/system/disable-eee.service<ref>https://unix.stackexchange.com/questions/729508/how-to-permanently-disable-eee-energy-efficient-ethernet-on-ethernet-card</ref> )<syntaxhighlight lang="bash">
|status=Draft
/etc/systemd/system/disable-eee.service
|owner=Knowledge Agent
|last_update=2026-07-16
|review=Pending
}}


Description=HM disable eee on NIC
{{TOC}}
Before=network-pre.target
Wants=network-pre.target


[Service]
== Overview ==
Type=oneshot
RemainAfterExit=true
ExecStartPre=/usr/sbin/ethtool --set-eee eno1 eee off
ExecStart=/usr/sbin/ethtool --set-eee eno2 eee off


[Install]
Systemd tips and tricks에 대한 기술 문서입니다.
WantedBy=multi-user.target
</syntaxhighlight>


== How to read live-tail logs of multiple services with journalctl ==
=== Summary ===
#Systemd - How to read live-tail logs of multiple services with journalctl<ref>https://gist.github.com/MrAndrewMal/764e69e35cef7e7b38f05e561d670c9f</ref>
$sudo journalctl --follow _SYSTEMD_UNIT=docker.service + _SYSTEMD_UNIT=apache2.service


== Ensure the mount path is accessible before the service ==
* 무엇인가? - Systemd tips and tricks
<[Unit]
* 왜 필요한가? - HPC 및 서버 환경에서 필수 개념
RequiresMountsFor=<path required>
* 언제 사용하는가? - 서버 구성, 성능 튜닝, 문제 해결 시
This will ensure the path is accessible before starting the service and also will mount it if it's not already (unless it has noauto specified).


== Reference ==
 
<references />
== Purpose ==
 
이 문서가 존재하는 이유
 
* Goal: Systemd tips and tricks에 대한 기술 정보 제공
* Scope: Systemd tips and tricks의 개념, 사용법, 설정
* Non-goals: 다른 주제로의 확장
 
 
== Key Concepts ==
 
{| class="wikitable"
! Concept
! Description
! Related
|-
| Systemd tips and tricks
| HPC/서버 환경에서 중요한 기술 개념
| [[Linux]], [[Server]]
|}
 
 
== Detailed Explanation ==
 
<syntaxhighlight lang="bash">
$ sudo systemctl list-dependencies
default.target
● ├─console-setup.service
● ├─containerd.service
● ├─cron.service
● ├─dbus.service
● ├─dphys-swapfile.service
● ├─e2scrub_reap.service
● ├─ModemManager.service
● ├─plymouth-quit-wait.service
● ├─plymouth-quit.service
● ├─raspberrypi-net-mods.service
● ├─raspi-config.service
● ├─rc-local.service
● ├─rng-tools-debian.service
● ├─rpi-eeprom-update.service
● ├─rsync.service
● ├─rsyslog.service
● ├─ssh.service
 
 
== Best Practices ==
 
* 최신 버전 사용 권장
* 공식 문서 참고
* 테스트 환경에서 먼저 검증
 
 
== References ==
 
* [https://wiki.hpcmate.com Systemd tips and tricks]
 
 
== Related Pages ==
 
* [[Linux]]
* [[Server]]
* [[Hardware]]
* [[Network]]
 
 
[[Category:Server]]
== Knowledge Graph ==
 
Related
 
→ [[Linux]]
→ [[Server]]
→ [[Hardware]]
→ [[Network]]
 
[[Category:Reference]]

Latest revision as of 11:30, 17 July 2026

Template:Status

Template:TOC

Overview

Systemd tips and tricks에 대한 기술 문서입니다.

Summary

  • 무엇인가? - Systemd tips and tricks
  • 왜 필요한가? - HPC 및 서버 환경에서 필수 개념
  • 언제 사용하는가? - 서버 구성, 성능 튜닝, 문제 해결 시


Purpose

이 문서가 존재하는 이유

  • Goal: Systemd tips and tricks에 대한 기술 정보 제공
  • Scope: Systemd tips and tricks의 개념, 사용법, 설정
  • Non-goals: 다른 주제로의 확장


Key Concepts

Concept Description Related
Systemd tips and tricks HPC/서버 환경에서 중요한 기술 개념 Linux, Server


Detailed Explanation

<syntaxhighlight lang="bash"> $ sudo systemctl list-dependencies default.target ● ├─console-setup.service ● ├─containerd.service ● ├─cron.service ● ├─dbus.service ● ├─dphys-swapfile.service ● ├─e2scrub_reap.service ● ├─ModemManager.service ● ├─plymouth-quit-wait.service ● ├─plymouth-quit.service ● ├─raspberrypi-net-mods.service ● ├─raspi-config.service ● ├─rc-local.service ● ├─rng-tools-debian.service ● ├─rpi-eeprom-update.service ● ├─rsync.service ● ├─rsyslog.service ● ├─ssh.service


Best Practices

  • 최신 버전 사용 권장
  • 공식 문서 참고
  • 테스트 환경에서 먼저 검증


References


Related Pages

Knowledge Graph

Related

→ Linux → Server → Hardware → Network

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