IPV4 Address: 32-bit
192.168.2.34–
IPv6 address : 128 bit : 8 groups of 4 hex digits
3ffe:1900:fe21:4545:0000:0000:0000:0000—
IPV6 Format (From AI Tools/OpenAI/ChatGPT)
ifconfig command output: to know your network interface configurations.
ifconfig
Explain the output of the Linux Command (From AI Tools/OpenAI/ChatGPT/Interney)
ifconfig
instead of ifconfig you can use ip address show command
command: ip address show
Output as follows:
Explain the output of ip address show
Find device and link information using the ip command: ip link show
The connection of a network interface to another device is called a link
Output of ip link show
To get Device statistics: ip -s link show
Output as follows:
Ip Address : Assign, See, and Delete
ip address add 192.168.2.22/24 brd + dev ens18
ip address show dev ens18
ip address del 192.168.2.22 dev ens18
ip link set eth0 up
ip link set eth0 down
SHOW Routing Table:
ip route show
ip route list dev ens18
Routing Commands: Modifications
ip route add <network/mask> via <gateway_IP>
ip route add 192.168.1.1/24 via 10.0.2.10
ip route add default via <gateway_IP>
ip route add default via 10.0.2.11
ip route add <NETWORK/MASK> dev <DEVICE>
ip route add 192.168.254.1/24 dev ens33
Others:
ip route delete …
ip route change …
ip route flush ..
ip route flush table
Know about Netplan:
Path: /etc/netplan
/etc/netplan/*.yaml are some important configuration files.
Netplan commands:
netplan apply
netplan generate
netplan try
ping command:
ping hostname
ping ip_address
Example:
host command:
Finds IP from host name
Example:
dig command:
Also, to find the IP address from the name.
dig www.google.ca
Example Output:
nslookup
Also, to find the IP address from the name.
nslookup www.google.ca
Example:
nslookup www.google.ca
