Networking

Private address ranges

Class A: 10.0.0.0/8

Class B: 172.16.0.0/12

Class C: 192.168.0.0/16

route

Check routes

route -n

Add a default gateway for wireless interface wlan1

route add default gw 10.20.129.1 dev wlan1

ping

To send four packets

ping -c 4 10.10.10.6

To specify an interface

Ping 1.1.1.1 using interface wlan0

ping -I wlan0 1.1.1.1

firewall

To open a port

firewall-cmd --zone=public --add-port 58000/tcp