Linux Networking: Connect, Configure, and Troubleshoot

Linux networking covers the configuration and management of network interfaces, routing, DNS resolution, firewalls, VPNs, and network troubleshooting on Linux systems. Linux provides powerful networking tools and is the platform of choice for routers, firewalls, and network appliances.

Our Linux networking collection teaches you to configure, secure, and troubleshoot network connections on any Linux system.

• Core Skill: Networking is fundamental to all server work
• Troubleshooting: Diagnose connectivity issues efficiently
• Security: Network configuration is your first line of defense
• Cloud: Virtual networking in cloud environments uses Linux

• Linux Administrators: Master network configuration
• Network Engineers: Linux-based networking tools
• DevOps Engineers: Container and cloud networking
• Security Analysts: Network monitoring and analysis

• IP addressing and subnetting
• Network interface configuration
• Routing and gateway setup
• DNS configuration and troubleshooting
• VPN setup (OpenVPN, WireGuard)
• Packet analysis (tcpdump, Wireshark)
• Network troubleshooting tools
• Bridge and bonding configuration

1. Basics: IP config, interfaces, routing
2. DNS: Resolution, /etc/hosts, resolv.conf
3. Firewalls: iptables, nftables, firewalld
4. VPN: OpenVPN and WireGuard setup
5. Analysis: tcpdump, ss, netstat, Wireshark
6. Advanced: VLANs, bridges, bonding, SDN

Linux networking skills are essential for system administrators (€45K-€75K), network engineers (€50K-€85K), and DevOps engineers (€60K-€100K). Strong networking knowledge differentiates senior professionals.