| ethtool eth0 | Show status of ethernet interface eth0 | |
| ethtool --change eth0 autoneg off speed 100 duplex full | Manually set ethernet interface speed | |
| iwconfig eth1 | Show status of wireless interface eth1 | |
| iwconfig eth1 rate 1Mb/s fixed | Manually set wireless interface speed | |
| • | iwlist scan | List wireless networks in range |
| • | ip link show | List network interfaces |
| ip link set dev eth0 name wan | Rename interface eth0 to wan | |
| ip link set dev eth0 up | Bring interface eth0 up (or down) | |
| • | ip addr show | List addresses for interfaces |
| ip addr add 1.2.3.4/24 brd + dev eth0 | Add (or del) ip and mask (255.255.255.0) | |
| • | ip route show | List routing table |
| ip route add default via 1.2.3.254 | Set default gateway to 1.2.3.254 | |
| • | tc qdisc add dev lo root handle 1:0 netem delay 20msec | Add 20ms latency to loopback device (for testing) |
| • | tc qdisc del dev lo root | Remove latency added above |
| • | host pixelbeat.org | Lookup DNS ip address for name or vice versa |
| • | hostname -i | Lookup local ip address (equivalent to host `hostname`) |
| • | whois pixelbeat.org | Lookup whois info for hostname or ip address |
| • | netstat -tupl | List internet services on a system |
| • | netstat -tup | List active connections to/from system |
YOU CAN USE QUICK SEARCH ENGINE IN THE TOP FOR MORE INFORMATIONS DOWNLOADS OR DETAILS.
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