if statement in Jinja2 templates with Ansible
Jenkins terms
C type casting
Working with lists in Ansible
vim save and quit
Find files and directories with nouser and nogroup
Go to beginning and end of the file in nano
Run the OOM adjustments on all php-fpm childs
Uninstall VMWare Workstation in Debian
Grab all urls from saved html file with python and beautifulsoup
Network card firmware install in Debian
Expire user password and force reset at next login
Display available versions of a package in Debian/Ubuntu
Set tab spaces to 2 in vim to edit yaml and python files
Ansible tasks plays and playbooks
Copy directory and preserve all permissions in Linux
YAML basics
Allow incoming SYN packets to all listening ports using iptables and Ansible
Uninstall validate_password plugin for MySQL
Lock user password
Enumerate fields for local credentials databases
Most used Desktop Environments
Linux boot process
Virtualbox replacement in Debian
Ansible role directory components
KVM clipboard sharing
Common tests in bash for conditional statements
REST clients
What is piping in bash
What is a Linux distribution
Suspend in older versions of Gnome
Init runlevels
Linux network commands
Enable windows title buttons (minimize, maximize) in Debian Gnome
Get help in Linux
View kernel messages in Linux
Listing devices in Linux
woeusb - burn Windows ISO to flash from Linux
Linux kernel modules tools
Download manager which monitors clipboard
Pseudo file systems in Linux
Create a temporary files in scripts
passwd shadow group files structure
Get the number of threads for a running process in Linux
bash wildcards
Brackets in bash
Simulate a package installation with apt
Convert to lower case with tr
Things to do after creating systemd unit file
How to enable debug in bash script
Single and double quotes in bash
Enable line wrapping in nano
Crontab for MySQL backup
How to kill nginx caching
Create a bash function with parameters
Generate a sequence of numbers in bash
Get a proper list of services which are currently running
Routers, hubs and switches
Rename multiple files by pattern in bash with find
Get instance metadata in AWS
Generate file contents using cat, here-document and environment variables
Over 300GB logs size due to "AER PCIe Bus" errors
Disable automatic sleep in Debian testing
Resizing AWS EC2 partition
Read yaml values from encrypted file with ansible-vault using python
Check if string is present in usernames in multiple AWS accounts using awscli and jq
Quick way to create a dababase and user with password for MySQL/MariaDB
Monitor page load with PhantomJS, Nagios and Ruby
Several methods to write ISO to flash drive
Drop multiple measurements from InfluxDB database using a pattern
Archive all directory logs except today with find and gzip
Format strings in Terraform
Save results of MongoDB query in a JSON file
Check Elasticsearch status from Nagios
Don't log commonly missing files in nginx
Pack and delete only specified log files by template with tar seq and printf
Convert a MongoDB cloned server from replica set to a stand alone server
How to scroll inside screen
How to retrieve entire site via command line using wget
How to reset the password for any RabbitMQ user
Batch change passwords on multiple AWS accounts
Restart Gnome-shell without killing running applications
Executing bash and groovy commands on a Jenkins node
Modify default autogen retention policy in InfluxDB
How to remove "Send to device" in Chrome right click
Delete artifact from Nexus repository using REST API
Get IP address from console
Take a screenshot of a specific area in Gnome
What is cloud computing
Check password protected certificate expiration date with OpenSSL
What is continuous integration
Linux add swap space oneliner