Hi, I configure authentication with the LDAP (Active Directory) of my compagny. But the username (sAMAccoutName) contains a dot (eg : e.hirchaud). And that was a problem because the dot is not allow in galaxy username and auto-registration fails because of that. For testing I change the regex in "security/validate_user_input.py" and authorize character dot and it's work ! I know its not a good practice to change core code so I want to know if they are known "risks" or sides effects if I keep this change and if you have a best solution ? Thanks! Edouard -- Édouard Hirchaud ANSES Laboratoire de Ploufragan-Plouzané Unité Génétique Virale et Biosécurité 22440 Ploufragan Tel : (33) 02 96 01 62 71