Important Network Commands In Linux

ifconfig  or ip addr: Displays or configures network interfaces, IP addresses, and related information.


ping: Sends ICMP echo requests to a target host to check network connectivity and measure round-trip time.


traceroute or tracert: Traces the route taken by packets from your computer to a destination host, showing all
 intermediate hops.


netstat or ss: Displays network statistics, active connections, listening ports, and routing table information.


nslookup or dig: Resolves domain names to IP addresses and vice versa using DNS queries.


wget or curl: Downloads files from the internet using HTTP, HTTPS, or FTP protocols.


ssh: Initiates a secure remote shell connection to another host for remote management.


scp or rsync: Copies files securely between hosts over SSH.


nmap: Scans hosts and networks to discover open ports, services, and other information.


iptables or firewalld: Configure firewall rules and manage network traffic filtering and NAT.


route or ip route: Manages the routing table, including adding, deleting, or modifying routes.


ifup and ifdown: Used to bring up or shut down network interfaces.


hostname and hostnamectl: Display or change the hostname of the system.


arp: Displays and manages the ARP cache, used for resolving IP addresses to MAC addresses.


iwconfig or iw: Configures wireless network interfaces and displays information about wireless networks.


netcat or nc: A versatile networking utility that can establish various types of network connections.


tcpdump: Captures and analyzes network traffic for troubleshooting and analysis.


sshd: The SSH server daemon that allows secure remote access to the system.


dhclient or dhcpcd: Used to obtain an IP address and other network settings from a DHCP server.


host or hostname: Displays the hostname of the system.