Linux Administration & Server Hardening
Master Linux server administration, enterprise networking, Apache web hosting, DNS, DHCP, Samba, NFS, VPN, proxy servers, security hardening, monitoring, and infrastructure management with hands-on practical labs.
Duration
4 Months / 16 Weeks / 120 Hours
Level
Beginner to Advanced
Modules
18 Modules
Format
Hands-on Labs
What You'll Learn
The Enterprise Linux Server Administration and Networking program is designed to provide practical and industry-ready skills in Linux system administration and enterprise infrastructure management. This course covers Linux fundamentals and command-line administration, user and permission management, package and repository management, file system and storage administration, network configuration and troubleshooting, process management and system monitoring, enterprise security and firewall management, DNS and DHCP server configuration, Apache web server administration, FTP, Samba, NFS, and proxy server configuration, and PXE/TFTP deployment infrastructure.
// Prerequisites
- - Basic computer knowledge
- - Familiarity with operating systems
- - Basic networking knowledge (recommended)
- - No prior Linux experience required
$ armour --training linux-admin --info
[*] Course: Linux Administration & Server Hardening
[*] Duration: 4 Months / 16 Weeks / 120 Hours
[*] Level: Beginner to Advanced
[!] 18 modules | 150 topics
[+] Lab environment: READY
[+] Certification prep: INCLUDED
$ _
Complete Course Modules
Introduction to Linux
- > UNIX, Linux, and Open Source
- > What is Linux?
- > History and Evolution of Linux
- > Linux Kernel
- > Features of Linux
- > Linux Distributions
- > Linux Directory Structure
- > Linux Installation
- > Login Methods
- > Run Levels in Linux
Linux Basic Commands
- > File Navigation
- > File and Directory Management
- > Copying and Moving Files
- > Cat Command
- > Less and More Commands
- > Pipes and Redirects
- > Compression and Archiving
- > Symbolic Links
- > Linux Shortcuts
Text Editors
- > Cat editor usage
- > Nano editor
- > Vi/Vim editor mastery
- > Editor modes and navigation
- > Search and replace operations
- > Configuration file editing
String Processing & Finding Files
- > head and tail commands
- > wc (word count)
- > sort command
- > cut command
- > paste command
- > grep pattern matching
- > awk text processing
- > sed stream editor
- > tree command
- > find command
- > which and whereis commands
Users, Groups & Permissions
- > Types of Shells
- > Users and Groups
- > /etc/passwd file
- > /etc/shadow file
- > /etc/group file
- > /etc/gshadow file
- > User Management commands
- > Group Management commands
- > Root Access
- > su and sudo
- > File Permissions (rwx)
- > SUID, SGID, Sticky Bit
- > ACL Permissions
Package Management
- > RPM and SRPM Packages
- > Linux Architectures
- > RPM Package Installation and Management
- > Repositories and repo configuration
- > Yum Package Manager
File System & Disk Management
- > Types of Disks
- > Parted Utility
- > Fdisk Utility
- > Mounting File Systems
- > /etc/fstab configuration
- > Quota Management
- > SWAP configuration
- > RAID concepts
- > RAID Levels (0, 1, 5, 10)
- > Logical Volume Manager (LVM)
Network Configuration & Controlling Services
- > Network Configuration files
- > Network Tools (ifconfig, ip)
- > traceroute and tracepath
- > netstat and ss commands
- > SSH remote access
- > SCP secure file copy
- > FTP client usage
- > Wget downloads
- > Rsync synchronization
- > Managing Services with systemd
Security, Process Management & Monitoring
- > Securing SSH server
- > Changing Default SSH Port
- > Disabling Root Login via SSH
- > Public/Private Key Authentication
- > IP Allow and Deny (hosts.allow/deny)
- > Job Management (cron, at)
- > Process Management (ps, top, kill, nice)
- > Monitoring Tools (htop, iotop, vmstat)
- > Antivirus Software (ClamAV)
- > Linux Malware Detect (LMD)
- > IPTables firewall rules
- > UFW (Uncomplicated Firewall)
- > TCPdump packet capture
Dynamic Host Configuration Protocol (DHCP)
- > DHCP Overview and concepts
- > Installing DHCP Server
- > Configuring DHCP Scopes
- > Address Pools configuration
- > DHCP Reservations
- > MAC-Based Reservations
- > IP Exclusions
Domain Name System (DNS)
- > DNS Overview and architecture
- > Installing DNS Server (BIND)
- > Forward Lookup Zones
- > Reverse Lookup Zones
- > DNS Zone Transfers
- > DNS Client Tools (dig, nslookup)
- > Dynamic DNS configuration
Apache Web Server
- > Apache Web Server Overview
- > Apache Installation and startup
- > Apache Configuration Files (httpd.conf)
- > Virtual Hosts (Name and IP-based)
- > Website Binding
- > SSL Certificate Configuration
- > Authentication (Basic and Digest)
- > Apache Logging and Log Analysis
- > User Directories (public_html)
- > WebDAV configuration
- > CGI Scripts
FTP Server (VSFTPD)
- > FTP Protocol Overview
- > VSFTPD Installation
- > User and Group Management for FTP
- > FTP Client Configuration
- > Uploading and Downloading Files
- > File Operations and permissions
- > Anonymous FTP configuration
- > FTP security hardening
Samba/SMB/CIFS Server
- > SMB Protocol Overview
- > SMB Protocol Versions (v1, v2, v3)
- > Samba Installation and configuration
- > Shared Folder Configuration
- > User Access Permissions
- > SMB Authentication
- > SMB Client Utilities (smbclient, mount.cifs)
NFS Server
- > NFS Protocol Overview
- > Installing NFS Server
- > Configuring NFS Exports (/etc/exports)
- > Mounting NFS Shares on clients
- > NFS permissions and security
Telnet & Remote Desktop Server
- > Telnet Overview and risks
- > Telnet Server Configuration
- > Remote Desktop Protocol (RDP) concepts
- > Remote Desktop Installation (XRDP)
- > Remote Desktop Client Configuration
- > Secure alternatives (SSH, VNC)
Proxy Server
- > Proxy Server Overview and concepts
- > Installing Squid Proxy
- > Forward Proxy Configuration
- > Transparent Proxy setup
- > Content Filtering rules
- > Access Control Lists (ACLs)
TFTP & PXE Boot Server
- > TFTP Protocol Overview
- > PXE Boot Overview
- > Installing TFTP Server
- > PXE Boot Configuration
- > DHCP and TFTP Integration
- > Network OS deployment
Learning Outcomes
- Install and manage Linux servers in production environments
- Configure enterprise network services (DNS, DHCP, Web, FTP)
- Implement proper user, group, and permission management
- Manage disk storage with LVM, RAID, and quotas
- Configure and harden Linux firewalls (IPTables, UFW)
- Deploy Apache web servers with SSL and virtual hosts
- Set up enterprise file sharing (Samba, NFS)
- Configure proxy servers for content filtering and caching
- Automate server deployment with PXE/TFTP boot
- Monitor system performance and manage processes
- Secure SSH and implement key-based authentication
- Troubleshoot Linux server and network issues
Hands-On Labs
- Enterprise virtual lab environment
- Multiple Linux distributions (CentOS/RHEL, Ubuntu)
- Server farm with interconnected services
- DNS and DHCP server deployment labs
- Apache web hosting with SSL certificates
- Samba and NFS file sharing scenarios
- Squid proxy server configuration
- PXE network boot environment
- Firewall and security hardening exercises
- Performance monitoring and troubleshooting labs
- SSH hardening and key management practice
- Real-world enterprise infrastructure scenarios
Certification Preparation
- + RHCSA (Red Hat Certified System Administrator)
- + RHCE (Red Hat Certified Engineer)
- + CompTIA Linux+
- + LPIC-1 and LPIC-2
- + Foundation for Linux privilege escalation courses
Meet Your Instructor
Armour Infosec Security Team
Linux Systems & Infrastructure Specialist
Our Linux instructors have managed enterprise Linux infrastructure at scale across data centers and cloud environments. They combine deep system administration expertise with security hardening knowledge to teach production-ready deployments used in real enterprise environments.
What Students Say
“From Linux beginner to managing multiple servers with 18 different services. The Apache and Samba labs are incredibly practical.”
Rohit M.
Junior Admin
“Solid enterprise foundation course. The security modules (IPTables, SSH hardening) make this stand out from generic Linux training.”
Anjali S.
DevOps Engineer
“Understanding Linux administration is crucial for pentesting. The 18 detailed modules gave me comprehensive server knowledge.”
Pranav K.
Security Student
Frequently Asked Questions
Common questions about the course, enrollment, and certification.
Ready to Enroll?
Secure your spot in the next batch. Limited seats available for hands-on lab access.