Answer from castaglia (main proFTPD developer) : Now, starting with MySQL 5.7, the "Backend" SQLAuthType will no longer work. The alternative is to start using the MD5/SHA1/SHA256 (or other) SQLAuthTypes provided by mod_sql_passwd.
Complete answer here : https://forums.proftpd.org/smf/index.php?topic=12043.15 Basically, Backend SQLAuthType cannot work with MySQL >= 5.7. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1630955 Title: proftpd 1.3.5a-1build1 with SQLAuthTypes other than plaintext doesn't recognize passwords To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/proftpd/+bug/1630955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs