# SSO or straight up LDAP user source? **URL:** \ **Category:** Ignition\ **Tags:** ignition79\ **Created:** [December 19, 2018, 6:35pm UTC](https://forum.inductiveautomation.com/t/sso-or-straight-up-ldap-user-source/21511 "2018-12-19T18:35:20Z")\ **Posts on this page:** 1\ **Showing post:** 9
**Author:** ![alfred\_dussault](https://avatars.discourse-cdn.com/v4/letter/a/dc4da7/32.png) [@alfred\_dussault](https://forum.inductiveautomation.com/u/alfred_dussault)\ **Post date:** [January 17, 2019, 3:07pm UTC](https://forum.inductiveautomation.com/t/sso-or-straight-up-ldap-user-source/21511/9 "2019-01-17T15:07:33Z")
Hi, unfortunately, it doesn't work. > [@Numeric ldap UID's, ldap attribute as ignition username or prepend/strip character](http://forum.inductiveautomation.com/t/numeric-ldap-uids-ldap-attribute-as-ignition-username-or-prepend-strip-character/21913): > > Hi, I was able to get the user authentication source working against our dirsrv-389 ldap instance with help from the forum. so thanks for that. Now I’m running into a different issue and I’m hoping there is a work around. all of our UID’s in ldap are numeric. So while I can authenticate successfully using the “Test authentication profile” it won’t let me use the numbers due to Ignitions limitation on user names starting with a number. so my question is this. there are other attributes th… --- _[View the full topic](https://forum.inductiveautomation.com/t/sso-or-straight-up-ldap-user-source/21511)._