Understanding Your Server's Network Configuration
Knowing how to read and manage your server's network settings is essential for troubleshooting and configuration.
View Network Interfaces
ip addr showLook for your main network interface (typically eth0, ens3, or enp3s0). Your public IP will be listed next to inet.
View the Routing Table
ip route showCheck DNS Configuration
cat /etc/resolv.confView Open Ports and Active Connections
ss -tulpnTest Internet Connectivity
ping -c 4 8.8.8.8Test DNS Resolution
nslookup yourdomain.com
dig yourdomain.comCheck Bandwidth Usage
apt install vnstat -y
vnstat -l # Live bandwidth monitor
vnstat -d # Daily usage summary