How to force old applications to support the IPv6 protocol (Linux)

The article discusses the importance of enabling IPv6 support for applications that only operate on IPv4 in Linux systems. The author explains that as the number of devices connected to the Internet continues to rise, the need for IPv6 becomes critical to meet these demands. However, many applications still function solely on IPv4. To facilitate their operation in IPv6 networks, several methods can be applied, such as the use of tunneling which allows IPv4 applications to communicate over an IPv6 network. The article also provides practical tips for configuring Linux systems to enable this compatibility. In light of the growing significance of IPv6, such solutions are becoming increasingly crucial for developers and system administrators. These issues are important not just for the availability of applications, but also for supporting the current era of technical challenges associated with the global Internet.