So I tried upgrading my production server a few months ago to Apache 2.4 and authnz_external was broken (BSD build issue) and last night after having success in my development environment rolling back to 2.2 I rolled back the production server to 2.2.27. Now I get this error: > [Tue Apr 01 17:28:01 2014] [warn] Init: Session Cache is not configured [hint: SSLSessionCache] > [Tue Apr 01 17:28:01 2014] [notice] Digest: generating secret for digest authentication ... > [Tue Apr 01 17:28:01 2014] [notice] Digest: done > [Tue Apr 01 17:28:01 2014] [warn] pid file /var/run/httpd.pid overwritten -- Unclean shutdown of previous Apache run? > [Tue Apr 01 17:28:01 2014] [alert] (2)No such file or directory: getpwuid: couldn't determine user name from uid 4294967295, you probably need to modify the User directive > [Tue Apr 01 17:28:01 2014] [notice] Apache/2.2.27 (FreeBSD) mod_ssl/2.2.27 OpenSSL/1.0.1f configured -- resuming normal operations > [Tue Apr 01 17:28:01 2014] [alert] (2)No such file or directory: getpwuid: couldn't determine user name from uid 4294967295, you probably need to modify the User directive > [Tue Apr 01 17:28:01 2014] [alert] (2)No such file or directory: getpwuid: couldn't determine user name from uid 4294967295, you probably need to modify the User directive > [Tue Apr 01 17:28:01 2014] [alert] (2)No such file or directory: getpwuid: couldn't determine user name from uid 4294967295, you probably need to modify the User directive > [Tue Apr 01 17:28:01 2014] [alert] (2)No such file or directory: getpwuid: couldn't determine user name from uid 4294967295, you probably need to modify the User directive > [Tue Apr 01 17:28:02 2014] [alert] Child 6115 returned a Fatal error... Apache is exiting! > Most of the google references for the alert error are referencing 1.3 and those that aren’t say the User and Group are wrong or missing in httpd.conf - they are definitely correct and reflect valid system users (www, user and group 80). Has anyone experienced this before? I’ve uninstalled pwauth, all references to authnz_external and reinstalled both to no avail. I’m trying to integrate my LDAP installation into a few directories so my photographers have the same user/password prompts for those folders as they do for email and FTP. Thanks! — Ryan