问题 Is there a convention where to place the 'files' representing the end points to Unix domain sockets? I tend to put them to /tmp/some-application-specific-subdir-name/ , but I wonder if there is a more common place. The background is, that POSIX is not clear about the maximum path length to access such 'files': The size of sun_path has intentionally been left undefined. This is because different implementations use different sizes. For example, 4.3 BSD uses a size of 108, and 4.4 BSD uses a