Table of Contents

The most popular Linux distribution

sysadmin no trabajar demasiado

advanced-ssh-config

t-shirt size

zdnet_it_on_cloud

julias_drawings

linux_foundation_video kernel-training-video linux_cloud_tutorials_video nixcraft_video tecmint_video sysadmin_howto_video
climagi_video linux_skill_video opensource_com_video systems_engineer_video unixmen_video empty_youtube_channel

Sysadmin Blogs

handbook_servers_checklist

sysadmin_skills_in_demand

systemcodegeeks

Sysadmin Forums

being_sysadmin_like_riding_bike


Linux

dont let friends chmod 777


Linux is user friendly


Linux and FOSS Blogs and Forums

Best Linux Blogs

tecmint logo

nixcraft logo

learn_it_guide

unixmen

linuxsay

linux_dot_com_logo

Alternatives

Spanish Linux Blogs

FOSS youtube channels

Linux on Twitter


Linux in 2016

PHP 7

Linux web tools

transfer_sh

BashHub Bash History in the Cloud

Linux storage

Linux LVM Logical Volume Management and FileSystems

Linux processes

Linux System Calls

Linux user accounts. Active Directory Domain

Linux backups

Package Management


Downgrade or Rollback Updates


man pages on steroids with examples

Linux Shells

Linux Automation and Clustering Tools

PAC Manager

PSSH

Linux bash

Linux Tips

Command line text manipulation tools


Linux Terminals

TTY subsystem. Session management and line discipline

Terminal Multiplexers

tmux


Linux Virtualization

FOSS Software

Device files

Linux Kernel


Linux Performance Monitoring

tier1app_twitter

gceasy

fastthread

htop and top

http://nixcraft.tumblr.com/post/139101622517/htop-version-20-released-for-linux-os-x-freebsd

Glances

glances ubuntu output



Netdata

netdata-Real-Time-Linux-Performance-Monitoring

BCC Dynamic Tracing Tools

Berkeley Packet Filter BPF

Init Systems. Boot scripts

SysVinit

SystemD

JournalD

Control Groups. Managing resources or performance

Linux Networking

Networking FOSS Tools

http://securityreactions.tumblr.com/post/136893048895/how-sysadmins-view-people-scanning-the-net-with


OpenVPN

Networking CLI and settings


Linux Security

Sudo

Linux SSH

SSH Tunnels




Denyhosts intrusion prevention security tool

Rsync

iptables and firewalld

FirewallD

ModSecurity Web Application Level Firewall

  • modsecurity.org ModSecurity is an open source, cross-platform web application firewall (WAF) module. Known as the "Swiss Army Knife" of WAFs, it enables web application defenders to gain visibility into HTTP(S) traffic and provides a power rules language and API to implement advanced protections.

modsecurity_logo


OPNsense Firewall

Endian Firewall


Untangle Firewall

IPFire Firewall

SELinux, AppArmor and OpenSCAP

last command

How to block an IP address with ufw on Ubuntu Linux server



pfSense firewall

Integrate DRBD with Pacemaker Clusters

Vim and Emacs

Vim

vim cheatsheet


Emacs

Jed

Python Idle

vim,emacs,nano

Ubuntu

ArchLinux

Linux interview questions



Apple OS X



the taste example