Linux命令之网络 - （以太网和WIFI无线）
ifconfig eth0 ——显示一个以太网卡的配置
ifup eth0 ——启用一个 'eth0' 网络设备
ifdown eth0 ——禁用一个 'eth0' 网络设备
ifconfig eth0 192.168.1.1 netmask 255.255.255.0 ——控制IP地址
ifconfig eth0 promisc ——设置 'eth0' 成混杂模式以嗅探数据包 (sniffing)
dhclient eth0 ——以dhcp模式启用 'eth0'
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 of 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 80 ——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
who is www.example.com ——lookup on Who is database
