Lnx Network

Systemd-networkd(prefered server )

- service

   systemctl status systemd-networkd.service

- dhcp

   internal

- dns resolver

   /etc/systemd/resolved.conf.d/ or

   /etc/systemd/resolved.conf

- CLI tools

   networkctl

       - command

           networkctl status

           networkctl

- distri

   - arch

       /etc/systemd/network/

netctl

- service

   systemctl status  netctl.service

- dhcp

   dhcpcd or dhclient

- CLI tools

   netctl

- distri

   - arch

       /etc/netctl/

networkmanager (prefered desktop)

- service

   systemctl status NetworkManager.service

- dhcp

   internal or dhclient

       

- dns resolver

   /etc/NetworkManager/conf.d/dns-servers.conf

   

- CLI tools

   nmtui

   nmcli

- distri

   - redhat/centos

       /etc/sysconfig/network-scripts/

   -arch

       /etc/NetworkManager/system-connections/

netplan(ubuntu)

sudo vi /etc/netplan/01-netcfg.yaml

sudo netplan apply

sudo netplan --debug apply

dhcpcd

sytemctl status dhcpcd.service

NTW LNX flush DNS

firewalld

https://linuxconfig.org/how-to-allow-port-through-firewall-on-almalinux

Common

https://www.tecmint.com/linux-networking-commands/

Command :

stat :

nstat

ip -s link

ss -s

sar -n DEV (LNX sar sysstat )

sar -n DEV 1 3(LNX sar sysstat )

netstat -i

netstat -s

NTW LNX IP IFCONFIG NETTOOLS stat info