This guide lists essential considerations to harden (enhance) a Linux server to reduce the attack surface, reduce the impact or […]
Setting Up the Linux Firewall IPFire
IPFire is a hardened open-source Linux distribution that routes and offers firewall features to a physical or virtual network. Available […]
Most Common Linux File Systems – EXT vs XFS vs ZFS vs Btrfs
Basically, in all file systems, the first block is used for the Boot Sector and the second block is used […]
Managing Containers with LXD – Cheat Sheet
Linux Containers (LXC) are managed by LXD as if they were Virtual Machines, allowing them to take snapshots, have distinct IPs, and […]
High Performance Encrypted Proxy with ShadowSocks
ShadowSocks is an opensource server-client based solution created to circumvent state censorship by mimicking a normal HTTPS connection. It is […]
Network Bridge, Link Aggregation, and VLAN in Linux
On-prem servers must deal with different challenges that Cloud providers magically take care of and make it look very easy. […]
File Permissions and Proprieties in Linux
File (and directory) permissions in Linux and Unix-based systems define what the owner, the group and the others can or […]
Sandboxing Applications with AppArmor, Firejail and More
Sandboxing is a tecnique for confining application to access specific resources and protect the operating system from vulnerabilities and threats. […]
Setting Up a FreedomBox on a VM or RPi
FreedomBox is a Debian-based self-hosting server that allows the quick deployment of many applications and services with a single click […]
VLM Cheat Sheet
Logical Volume Management (LVM) is a method of space allocating on mass-storage devices. It can provide superior features to the […]