Linux Administration: The Complete Linux Bootcamp

Getting Started
1 Course Outline
2 IMPORTANT. Please read!
3 How to Get the Most Out of This Course
4 Join Our Online Community!

Setting Up the Environment
5 Linux Distributions
6 Installing Ubuntu in a VM
7 Things to Do After Installing Ubuntu
8 Installing CentOS in a VM
9 Ubuntu and CentOS Download Links (OVA Files)
10 Migrating to Linux

The Linux Terminal In Depth
11 Terminals, Consoles, Shells and Commands
12 Linux Command Structure
13 Getting Help, Man Pages (man, type, help, apropos)
14 Commands – Getting Help
15 Mastering the Terminal The TAB Key
16 Mastering the Terminal Keyboard Shortcuts
17 Commands – Keyboard Shortcuts
18 Mastering the Terminal The Bash History
19 Running Commands Without Leaving a Trace
20 Recording the Date and Time for Each Line in History
21 Commands – The Bash History
22 root vs. Non-privileged Users. Getting root Access (sudo, su, passwd)
23 Commands – Getting root access

Challenges – The Linux Terminal
24 Challenges – The Linux Terminal

The Linux File System
25 Intro to The Linux Files System
26 The Filesystem Hierarchy Standard (FHS)
27 Absolute vs. Relative Paths. Walking through the File System (pwd, cd, tree)
28 Commands – Paths
29 The LS Command In Depth (ls)
30 Commands – ls
31 Understanding File Timestamps atime, mtime, ctime (stat, touch, date)
32 Sorting Files by Timestamp
33 File Types in Linux (ls -F, file)
34 Commands – File Types and Timestamps
35 Viewing Files – Part 1 (cat)
36 Viewing Files – Part 2 (less)
37 Viewing Files – Part 3 (tail, head, watch)
38 Commands – Viewing Files
39 Creating Files and Directories (touch, mkdir)
40 Copying Files and Directories (cp)
41 Moving and Renaming Files and Directories (mv)
42 Removing Files and Directories (rm, shred)
43 Commands – touch, mkdir, cp, mv, rm, shred
44 Working With Pipes in Linux (, wc)
45 Command Redirection (, , 2 &, cut, tee)
46 Commands – Piping and Redirection
47 Finding Files and Directories – Part 1 (locate, which)
48 Commands – locate, find
49 Finding Files and Directories – Part 2 (find)
50 Find and Exec
51 Searching for String Patterns in Text Files (grep)
52 Commands – grep
53 Searching for Strings in Binary Files (strings)
54 Comparing Files (cmp, diff, sha256)
55 The Basics of VIM Text Editor
56 The VIM Editor In Depth – Part 1
57 The VIM Editor In Depth – Part 2
58 Commands – VIM
59 Compressing and Archiving Files and Directories (tar, gzip)
60 Hard Links and the Inode Structure
61 Working With Symlinks. Symlinks vs. Hard Links

Challenges – The Linux File System
62 Challenges – Paths, ls, File Timestamps and Types, Viewing Files
63 Challenges – cp, mv, rm, shred
64 Challenges – tar, ln
65 Challenges – locate, find

User Account Management
66 Understanding passwd and shadow files
67 Understanding Linux Groups (groups, id)
68 Creating User Accounts (useradd)
69 Changing and Removing User Accounts (usermod, userdel)
70 Creating Admin Users
71 Group Management (groupadd, groupdel, groupmod)
72 User Account Monitoring (whoami, who am i, who, id, w, uptime, last)
73 Commands – Account Management

Challenges – User Account Management
74 Challenges – User Account Management

Linux File Permissions
75 Understanding File Permissions
76 Octal (Numeric) Notation of File Permissions
77 Changing File Permissions (chmod)
78 The Effect of Permissions on Directories
79 Combining Find and Chmod Commands Together
80 Changing File Ownership (chown, chgrp)
81 Understanding SUID (Set User ID)
82 Understanding SGID (Set Group ID)
83 Understanding the Sticky Bit
84 Umask
85 Understanding Files Attributes (lsattr, chattr)
86 Commands – File Permissions

Challenges – File Permissions
87 Challenges – File Permissions

Linux Process Management
88 Processes and The Linux Security Model
89 Listing Processes (ps, pstree)
90 Commands – ps, pstree, pgrep
91 Getting a Dynamic Real-Time View of the Running System (top, htop)
92 Commands – top
93 Signals and Killing Processes (kill, pkill, killall, pidof)
94 Foreground and Background Processes
95 Job Control (jobs, fg, bg)
96 Commands – kill, pkill, killall, jobs, fg, bg, nohup

Challenges – Process Management
97 Challenges – Processes

Networking on Linux
98 Getting Information about the Network Interfaces (ip, ifconfig)
99 Configuring the Network On The Fly (ifconfig, ip, route)
100 Commands – ifconfig, ip, route
101 Setting Up Static IP on Ubuntu (netplan)
102 Commands – netplan
103 Testing and Troubleshooting Network Connectivity
104 Using SSH
105 Troubleshooting SSH
106 Securing the OpenSSH Server (sshd)
107 Commands – SSH
108 Copying Files Over the Network (scp)
109 Synchronizing Files and Directories using rsync
110 Using rsync Over the Network
111 Commands – scp, rsync
112 Using wget
113 Checking for Listening Ports (netstat, ss, lsof, telnet, nmap)
114 Commands – wget, netstat, ss, nmap

Challenges – Networking in Linux
115 Challenges – Network Interfaces
116 Challenges – SSH, scp, rsync

Software Management
117 DPKG (Debian and Ubuntu Based Distros)
118 Intro to APT
119 Using APT (Advanced Package Tool)
120 Commands – dpkg, apt
121 Compiling Programs from Source Code vs. Package Manager
122 Compiling C Programs
123 Compiling Software From Source Code Lab ProFTPD

Challenges – Software Management
124 Challenges – dpkg, apt

System Administration
125 Task Automation and Scheduling Using Cron (crontab)
126 Commands – Cron
127 Scheduling Tasks Using Anacron (anacron)
128 Mounting and Unmounting File Systems (df, mount, umount, fdisk, gparted)
129 Working With Device Files (dd)
130 Getting System Hardware Information (lwhw, lscpu, lsusb, lspci,dmidecode,hdparm)
131 Commands – Getting Hardware Information
132 Intro to systemd
133 Service Management (systemd and systemctl)
134 Commands – systemd, systemctl

Challenges – System Administration
135 Challenges – System Administration

[EXTRA] Configure a Linux Server from Scratch (VPS,DNS,WEB,PHP,MySql,Wordpress)
136 Overview The Big Picture
137 Running a Linux Server in the Cloud
138 Securing SSH with Key Authentication
139 Getting a Domain Name
140 Diving into the DNS Protocol and Installing a DNS Server (Bind9)
141 Setting Up the Authoritative BIND9 DNS Server
142 Installing a Web Server (Apache2)
143 Setting Up Virtual Hosting
144 Securing Apache with OpenSSL and Digital Certificates
145 Installing PHP
146 Installing and Securing the MySql Server
147 Installing a Web Application (WordPress)
148 Securing WordPress

Bash Shell Scripting
149 Bash Aliases
150 Commands – Aliases
151 Intro to Bash Shell Scripting
152 The Bash Shebang and Comments
153 Running Scripts
154 Variables in Bash
155 Environment Variables
156 Getting User Input
157 Special Variables and Positional Arguments
158 Coding – Variables in Bash
159 If, Elif and Else Statements
160 Testing Conditions For Numbers
161 Multiple Conditions and Nested If Statements
162 Command Substitution
163 Comparing Strings in If Statements
164 Lab Testing Network Connections
165 Coding – If…Elif…Else Statements
166 For Loops
167 Lab Dropping a List of IP addresses Using a For Loop
168 While Loops
169 Case Statement
170 Functions in Bash
171 Variable Scope in Functions
172 Menus in Bash. The Select Statement
173 Lab System Administration Script using Menus
174 Running a DoS Attack Without root Access (ulimit)

Challenges – Bash Scripting
175 Bash Scripting Basics
176 Flow Control (if…elif…else) and Command Substitution
177 Loops in Bash for, while
178 Functions and Menus in Bash

[EXTRA] Security Information Gathering and Sniffing Traffic
179 Scanning Networks with Nmap
180 ARP Scanning (arp-scan and netdiscover)
181 Hacking Google Searches (Google Dorks)
182 Using Wireshark for Packet Sniffing and Analyzing
183 Capture Traffic Using tcpdump

[EXTRA] IPFS – The Interplanetary File System
184 What is IPFS and How It Works
185 Installing IPFS on Linux
186 Running an IPFS Node on Linux
187 Pinning Objects

[EXTRA] Security Netfilter and Iptables Firewall
188 Introduction to Netfilter and Iptables
189 Chain Traversal in a Nutshell
190 Iptables Basic Usage
191 Iptables Options (Flags) – Part 1
192 Iptables Options (Flags) – Part 2
193 Where Do We Write Iptables Rules
194 Setting the Default Policy
195 Deleting the Firewall
196 Filter by IP Address
197 Filter by Port
198 Intro to Stateful Firewalls (Connection Tracking)
199 Implementing Stateful Firewalls with Iptables
200 Filter by MAC Address
201 Match by Date and Time
202 The ACCEPT and DROP Targets
203 The LOG Target

Challenges – Netfilter and Iptables
204 Challenges – Netfilter and Iptables

[EXTRA] Security SSH Public Key Authentication
205 SSH Public Key Authentication Overview
206 Generating SSH Key Pair on Windows
207 What about MacOS
208 Generating SSH Key Pair on Linux
209 Configuring SSH Public Key Authentication on Linux

Where To Go From Here
210 What’s Next

Course Completion
211 I’m Asking For Your Opinion
212 Congratulations
213 BONUS