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Ipv4 loopback address12/17/2023 ![]() ![]() We can use the ping command to check if loopback addresses are active. ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 How to check if loopback addresses are working? #vim /etc/hostsġ27.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0Ĭheck associated domain names. In the output, you can see a “lo” interface. There is a command ( ifconfig) in Linux, which you can use along with the option “-a” to list all interfaces. ![]() In this tutorial, we use the Linux operating system to demonstrate the examples. How to check the loopback address and associated domain names?Īn operating system has commands and utilities to list the IP addresses.
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