Comment on How to work around screen “Cannot open your terminal ‘/dev/pts/1’ – please check.” by Helge.
It’s a nice guide, but I would strongly advice against using this method on multi-user systems.
Making your tty/pty/pts world-read-writable opens up a gaping security hole, giving everyone raw access to your console.
Maybe it would be secure enough if you use ACLs, and only allow specific users, but I would rather prefer doing “script /dev/null” before calling screen.