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Add entry '2023-01-23' to sysadmin journal

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Gabriel Arazas 2023-01-28 11:42:54 +08:00
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notebook/journals.learning-how-to-sysadmin.org
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:END:
#+title: Journals: Learning how to sysadmin
#+date: 2022-11-10 14:14:04 +08:00
#+date_modified: 2023-01-23 09:20:34 +08:00
#+date_modified: 2023-01-28 11:42:37 +08:00
#+language: en
@ -1115,3 +1115,15 @@ These options include subnet mask, certain IP address, or the various URLs for t
These may be used for more complex setups.
I've learned how to look at debug logs from the =systemd-networkd.service= especially that it can show the requests and responses of the DHCP client.
* 2023-01-23
I became frustrated as I clearly don't understanding about networking so I took a [[https://www.coursera.org/learn/computer-networking/][networking course from Google IT specialization]] on it for at least 2 hours.
More specifically, on the Week 1 material.
Because of this understanding, I also simplified the networking setup of my server which is relieving.
This misunderstanding basically leads to a distratrous chain of events such as possible misconfigurations with subnetting, Wireguard not working properly, and the private network not exactly configured as I would like to be in several interfaces.
Ehhh, anyways, I've continued the course and it gave some more context but not enough.
I'm continuing it all the way through from start to finish though despite looking for certain information to have a stronger foundational knowledge on networking.
Really made me stumped for it.