Linux networking

No internet 

 Method 1 

 get network interface 

 ip a 

 bring up the interface 

 sudo ip link set INTERFACE_NAME up

sudo /sbin/dhclient INTERFACE_NAME 

 try connecting to the internet 

 ping 1.1.1.1 

 

 also check apt sources list 

 nano /etc/apt/sources.list 

 ensure sources are there 

 deb http://deb.debian.org/debian bookworm main contrib non-free non-free-firmware

deb http://deb.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware

deb http://deb.debian.org/debian bookworm-updates main contrib non-free non-free-firmware