Command manuals for network

dig - DNS lookup utility

git - the stupid content tracker

host - DNS lookup utility

hostname - show or set the system's host name

ifconfig - configure a network interface

ifup - bring a network interface up

ip - show / manipulate routing, network devices, interfaces and tunnels

iptables/ip6tables — administration tool for IPv4/IPv6 packet filtering and NAT

nc — arbitrary TCP and UDP connections and listens

netstat - Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships

nload - displays the current network usage

nslookup - query Internet name servers interactively

ping - send ICMP ECHO_REQUEST to network hosts

route - show / manipulate the IP routing table

ss - another utility to investigate sockets

ssh — OpenSSH remote login client

sshd — OpenSSH daemon

telnet — user interface to the TELNET protocol

traceroute - print the route packets trace to network host