Carlos Albornoz dubcl

## unlock_yubikey.md

      
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                dminca
                / unlock_yubikey.md
            
            
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              July 10, 2024 21:01
            
              
                YubiKey - unblock PIN after locking it with 3 wrong PIN attempts
              
          
    Unlock YubiKey ⚠️


After entering the wrong password 3 times your YubiKey is locked
in order to avoid brute-forcing the password. Luckily, there's a
way of unlocking yourself.


⚠️ you will lose all data on it

gpg2 --card-status
Application ID ...: D2760001240102010006042126520000

  
## .gitlab-ci.yml
# Update Jan 2024
# Deploying Cloud Functions is much simpler than it was 6 years ago.
# I'm leaving the gist in it's original 2018 state for now,
# but skip the the recent comments below for a simpler solution.

variables:
  GCP_ZONE: us-central1-a

stages:
  - npm-install

## arch_linux_installation.md

      
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                OdinsPlasmaRifle
                / arch_linux_installation.md
            
            
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              July 14, 2024 19:55
            
              
                LVM on LUKS Arch installation with systemd-boot
              
          
    Arch Linux Installation

LVM on LUKS Arch installation with systemd-boot
Sources:

https://wiki.archlinux.org/index.php/Installation_guide
https://wiki.archlinux.org/index.php/Dm-crypt/Encrypting_an_entire_system

Note: If you want a simpler encryption setup (with LUKS only), you can instead use the archinstall "guided" installer included with Arch since April 2021.

  
## ARCH_INSTALL.MD

      
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                heppu
                / ARCH_INSTALL.MD
            
            
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              February 27, 2022 17:01
            
              
                Installing Arch with GPT, dm-crypt, LUKS, LVM and systemd-boot
              
          
    Create bootable USB

dd bs=4M if=/path/to/archlinux.iso of=/dev/sdx status=progress oflag=sync
Boot from USB and set prepare system

loadkeys <your-keymap>

  
## networkmanager-wifi-powersave.md

      
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                jcberthon
                / networkmanager-wifi-powersave.md
            
            
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              July 24, 2024 08:59
            
              
                NetworkManager Wi-Fi powersaving configuration
              
          
    NetworkManager WiFi Power Saving

NetworkManager supports WiFi powersaving but the function is rather undocumented.
From the source code: wifi.powersave can have the following value:

NM_SETTING_WIRELESS_POWERSAVE_DEFAULT (0): use the default value
NM_SETTING_WIRELESS_POWERSAVE_IGNORE  (1): don't touch existing setting
NM_SETTING_WIRELESS_POWERSAVE_DISABLE (2): disable powersave


## kafka-cheat-sheet.md

      
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                ursuad
                / kafka-cheat-sheet.md
            
            
              Last active
              July 24, 2024 09:43
            
              
                Quick command reference for Apache Kafka
              
          
    Kafka Topics

List existing topics

bin/kafka-topics.sh --zookeeper localhost:2181 --list
Describe a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic mytopic 
Purge a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --alter --topic mytopic --config retention.ms=1000
... wait a minute ...

  
## purge-cloudstack.sh
/etc/init.d/cloud-management stop
mysql -ppassword -e 'drop database cloud'
mysql -ppassword -e 'drop database cloud_usage'

cloud-setup-databases cloud:password@localhost --deploy-as=root:password
rm -rf /var/log/cloud/management/*
cloud-setup-management
/etc/init.d/cloud-management start
	# Update Jan 2024
	# Deploying Cloud Functions is much simpler than it was 6 years ago.
	# I'm leaving the gist in it's original 2018 state for now,
	# but skip the the recent comments below for a simpler solution.

	variables:
	GCP_ZONE: us-central1-a

	stages:
	- npm-install
	/etc/init.d/cloud-management stop
	mysql -ppassword -e 'drop database cloud'
	mysql -ppassword -e 'drop database cloud_usage'

	cloud-setup-databases cloud:password@localhost --deploy-as=root:password
	rm -rf /var/log/cloud/management/*
	cloud-setup-management
	/etc/init.d/cloud-management start