Linux View IP address, display too NIC configuration, network device

Ifconfig eth0 shows the configuration of an Ethernet card

Ifup eth0 enable a ' eth0 ' network device

Ifdown eth0 disables a ' eth0 ' network device

Ifconfig eth0 192.168.1.1 netmask 255.255.255.0 control IP Address

Ifconfig eth0 promisc set ' eth0 ' into promiscuous mode to sniff packets (sniffing)

Dhclient eth0 enable ' eth0 ' in DHCP mode

Route-n Show routing Table

Route add-net 0/0 GW ip_gateway Configura default Gateway

Route add-net 192.168.0.0 netmask 255.255.0.0 GW 192.168.1.1 Configure static route to reach network ' 192.168.0.0/16 '

Route del 0/0 GW ip_gateway remove static route

echo "1" >/proc/sys/net/ipv4/ip_forward activate IP routing

Hostname show hostname of system

Host www.example.com lookup hostname to resolve name to IP address and viceversa (1)

nslookup www.example.com lookup hostname To resolve name to IP address and viceversa (2)

IP link Show Show link status, all interfaces

Mii-tool eth0 Show link status of ' eth0 '

Ethtool eth0 Show statistics of network card ' eth0 '

Netstat-tup Show all active network connections and their PID

NETSTAT-TUPL Show all network services listening on the system and their PID

Tcpdump TCP port Show all HTTP traffic

Iwlist Scan Show Wireless networks

Iwconfig eth1 Show configuration of a wireless network card

Hostname show hostname

Host www.example.com lookup hostname to resolve name to IP address and viceversa

nslookup www.example.com lookup hostname To resolve name to IP address and viceversa

Whois www.example.com lookup on Whois database

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Microsoft Windows Networks (SAMBA)

Nbtscan ip_addr NetBIOS Name Resolution

NMBLOOKUP-A ip_addr NetBIOS Name Resolution

Smbclient-l ip_addr/hostname Show remote shares of a Windows host

SMBGET-RR smb://ip_addr/share like wget can download files from a host Windows via SMB

Mount-t Smbfs-o username=user,password=pass//winclient/share/mnt/share mount a Windows network share