Tell about your practical experience setting up and working with network components in Linux.

In practice, configuring network components in Linux often involves working with command-line tools to manage interfaces, routing, and security.

Main tasks and tools:

• Configuring network interfaces: using ip or ifconfig to enable/disable interfaces, assign IP addresses.

  ip addr add 192.168.1.10/24 dev eth0
  ip link set eth0 up
  

• Routing: setting up routing tables for proper packet forwarding.

  ip route add default via 192.168.1.1
  

• Working with firewall: configuring rules with iptables or nftables for access control and security.

• Network diagnostics: using ping, traceroute, netstat, ss to check network and connection status.

• Configuring DHCP and DNS: setting up clients and servers for automatic IP assignment and name resolution.

In my experience, I often had to configure network bridges, VPN connections, and automate these processes through scripts and configuration files to ensure stable operation of servers and containers.