•TCP/IP Network Model
The TCP/IP network model is a simplified, four-layered set of abstractions that describes how different protocols interoperate in order for computers to send traffic from one machine to another over the Internet.
•IPv4 Networking
IPv4 is the primary network protocol used on the Internet today.
•IPv4 addresses
An IPv4 address is a 32-bit number, normally expressed in decimal as four 8-bit octets ranging in value from 0 to 255, separated by dots.
•IPv6 Networking
IPv6 is intended as an eventual replacement for the IPv4 network protocol, many ISPs already use IPv6 for internal communication and device management networks in order to preserve scarce IPv4 addresses for customer purposes.
•IPv6 Addresses
An IPv6 address is a 128-bit number, normally expressed as eight colon-separated groups of four hexadecimal nibbles (half-bytes).
•Checking Connectivity Between Hosts
The ping command is used to test connectivity. The command continues to run until Ctrl+c is pressed unless options are given to limit the number of packets sent.
The ping6 command is the IPv6 version of ping in Red Hat Enterprise Linux. It communicates over IPv6 and takes IPv6 addresses, but otherwise works like ping.
•Viewing Networking Informasi
The nmcli dev status command displays the status of all network devices : nmcli dev status
The nmcli con show command displays a list of all connections.
The nmcli con show -- active to list only the active connections.
shilfiarahmadhani
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Managing Networking
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