INTERNET AND NETWORK COMMANDS

ethtool ftp	command to show if a network cable is plugged in e.a Used to establish a connection with a specified host using the File Transfer Protocol.
ifconfig	Displays/establishes information about the network interfaces.
ifup	Bring up network interface.
ifdown	Bring up network interface.
iptraf	Interactive IP LAN monitor
iwconfig	Displays/establishes information about the wireless interfaces.
ip	Used to manage IP network interfaces.
lsof	Command to show what processes are making use of a port e.a.
nmap	Command to show which ports are open e.a.
netstat	Displays information about the Linux networking subsystem.
nslookup	Looks up the numerical IP address of the specified host.
ping	Sends a packet to a designated address and waits for a response.
route	Configure IP4 routing
scp	Copy files over the network.
showmount	Displays the Network Filesystem mounts available.
smbclient	Launches an interactive samba utility which resembles ftp.
smbmount	Mounts a remote Samba service at the specified mount point.
smbumount	Unmounts the specified Samba mount point.
ssh	Control a remote computer over the network.
telnet	Opens a terminal window on the remote host and starts an interactive session.
traceroute	Prints the route that packets take to network host
wvdial	Initiates a PPP dial-up connection.