Public bug reported: Ubuntu 18.04 LTS is enforcing RFC-952 hostnames during installation i.e. does not permit a hostname to start with a digit; although this has been superseded by RFC-1123 https://www.isc.org/community/rfcs/dns/
2.1 Host Names and Numbers The syntax of a legal Internet host name was specified in RFC-952 [DNS:4]. One aspect of host name syntax is hereby changed: the restriction on the first character is relaxed to allow either a letter or a digit. Host software MUST support this more liberal syntax. Even the BIND9 package in the bionic release observes RFC-1123 not RFC-952. Can this hostname naming constraint please be removed from the installation. ** Affects: ubiquity (Ubuntu) Importance: Undecided Status: New ** Tags: hostname ubiquity -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1785726 Title: Ubuntu 18.04 hostname restriction [ubiquity] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1785726/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs