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IPv6 is the most recent version of the IP protocol that the entire internet relies on to connect to other locations (IP protocol is a bit redundant because IP stands for internet protocol, but we will use it because it is easy). While IPv4 is still in use in many areas of the world, the IPv4 address space is being consumed at a rapid rate and it is not large enough to sustain the rapid deployment of internet-ready devices.
IPv6 looks to solve these problems. As well as making general improvements on the protocol, the most obvious benefit of utilizing IPv6 addresses is that it has a much larger address space. While IPv4 allowed for 2^32 addresses (with some of those reserved for special purposes), the IPv6 address space allows for 2^128 addresses, which is an incredible increase.
While IPv6 opens up a lot of opportunities and solves many long-standing issues, it does require a bit of an adjustment to some of your routine network configurations if you are used to using IPv4 exclusively. In this guide, weβll talk about some of the IPv6 counterparts to some popular IPv4 tools and utilities and discuss how to configure some popular services to utilize IPv6.
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Former Senior Technical Writer at DigitalOcean, specializing in DevOps topics across multiple Linux distributions, including Ubuntu 18.04, 20.04, 22.04, as well as Debian 10 and 11.
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Hello! And why no mention of /etc/hosts?
Need add ipv6 address for server like this?
127.0.0.1 localhost
188.245.42.245 server.domain.com server
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
2a03:6f00:4::bce1:224d server.domain.com server
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