Thank you for your continued cooperation in the operation of the Information Technology Center system.

Due to maintenance, the network and various service systems will be temporarily suspended on Saturday, December 25, 2021 and Wednesday, December 22, 2021.

We appreciate your understanding and cooperation.

[ Stop schedule ]

Network communication between on-campus <==> off-campus
：40 minutes between 00:00 and 02:00
<Reason for the outage>Maintenance work of optical cable by NTT East.

Due to the medium-scale maintenance work, the following time periods during the following hours, various service systems will be temporarily stopped.

1. Network communication between on-campus <==> off-campus
   ：Four outages of about 10 minutes occur between 18:00 and 20:00
2. YNU LMS
   ：18:30 - 19:15 (45 minutes)
3. Account management system, Password Changer (for students)
   ：18:00 - 20:30 ( 2 hours 30 minutes )
4. Matrix Authentication Service
   ：About 10 minutes between 20:30 and 21:00
5. Web hosting service (including university-wide web)
   ：About 10 minutes between 18:00 and 21:00
6. Wireless LAN service ( YNU-STAFF-ONLY , eduroam )
   ：About 10 minutes between 20:00 and 21:30
7. Mailing list service
   ：About 10 minutes between 20:00 and 21:30
8. UNIX education dedicated server
   ：About 10 minutes between 18:00 and 19:30
9. GakuNin (E-journal access from off-campus, NII FileSender, etc.)
   ：About 10 minutes between 20:00 and 20:30
10. SSL-VPN service (for faculty and staff)
    ：About 10 minutes between 17:30 and 18:00
11. Web Survey Service
    ：Two outages of about 10 minutes occur between 18:00 and 21:30