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173 total results found
Logging
Server log configuration and management
WordPress
Useful WordPress-related topics
Package Managers
==================================================================================== YUM (Yellowdog Update Manager) & DNF Both yum and DNF are found on RedHat based systems, and are pretty much interchangable. -----------------------------------------------...
Compiling from source
Compiling an application from source essentially means that you are manually creating a package using the source code. In this example, I'm compiling the John the Ripper password cracker from source, on an Ubuntu machine. To being, ensure that the required p...
Linux Filesystem (FHS), Storage Concepts, LVM, & Disks
Disk and filesystem management
Networking Commands
==================================================================================== Show networking information show current networking configuration and status ip a Show IPv4 or IPv6 specifically ip -4 a ip -6 a Show IPs assigned to interfaces in si...
Bash
Command man pages.
Network Managers
==================================================================================== Ubuntu - Netplan Before making changes to the network configuration on an Ubuntu machine, ensure that Cloud-init isn't enabled. Cloud-init is essentially Canonicals attempt ...
SSL
SSL validation, installation, and verification
DNS and Hosts Resolution
==================================================================================== DNS and Hosts Testing ------------------------------------------------------------------------------------------------------------------------------------------------ dig d...
cPanel
General cPanel-related topics
GRUB - Grand Unified Boot Loader
==================================================================================== GRUBs responsibility in the boot process ==================================================================================== GRUB Configuration Options There are 2 direct...
PHP
Installation, upgrades, configuration
File Transfers, Synchronisation & Shared Storage
Unison, NFS, rSync, SCP
Kernel, Modules, Tunables & initrd (Initialisation RAM Disk)
Kernel ==================================================================================== What is a Linux Kernel? The Linux kernel is the core software that acts as an interface between the hardware and various software applications running on your system...
Containerisation & Automation
Docker, Kubernetes, Ansible
Linux System Variables
Date, time, language
Check devices and connections
List disks lsblk List PCI controller connections: lspci List CPU details lscpu List USB bus devices lsusb
Vulnerabilities, Patching, and Security
SELinux, AppArmor, CVE
Linux Firewalls
UFW, IPTables, Firewalld