Penn State Directory (LDAP) Software Update
During the maintenance windows of Wednesday and Thursday of next week (October 14, 15), upgrades (a new version) will be made to the OpenLDAP software.
The LDAP services, ldap.psu.edu and dirapps.aset.psu.edu, will remain available throughout the process. There will be a short outage (approximately 20 minutes) starting at 5 a.m. on Thursday on server tr25g10.aset.psu.edu.
See change request CHG0033649 for more information.
More information: Penn State Directory (LDAP) Software Update
Story added 8. October 2015, content source with full text you can find at link above.