/run/screen has the following permissions drwxrwxr-x 3 root utmp 60 Jul 19 06:06 screen
screen-cleanup is a masked service in response to bug 1462692, so the permissions of /run/screen are never changed in Ubuntu 16.04. bdmurray@clean-xenial-amd64:~$ sudo service screen-cleanup status [sudo] password for bdmurray: ● screen-cleanup.service Loaded: masked (/dev/null; bad) Active: inactive (dead) bdmurray@clean-xenial-amd64:~$ ls -lh /lib/systemd/system/screen-cleanup.service lrwxrwxrwx 1 root root 9 Oct 4 2016 /lib/systemd/system/screen-cleanup.service -> /dev/null -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1761997 Title: /var/run needs mode 777 in bionic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/screen/+bug/1761997/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs