We stopped updating this site on June 30, 2024. From now on, information on Educational Campus-wide Computing System (ECCS) will be provided at utelecon The Portal Site of Information Systems @ UTokyo.

Temporary unavailability of some services due to DNS failure

System Status

Updated: October 07, 2016

October 07, 2016

The following services were unavailable during the period mentioned below due to DNS server failure, which the ECCS and related services query. This problem has already been solved. We deeply apologize for any inconvenience this may have caused to all of the users.

Date of occurrence: Oct.5, 2016 19:57~23:20

Range of Influence

ECCS Staff Email, Mailhosting

Sending of emails delayed for up to three and a half hours as the sending server could not query the DNS server.
We have not yet been able to confirm any impact to receiving emails. However, the action of forwarding emails have been affected by the same problems.

ECCS wired LAN

As the name address server, which automatically assigns names to terminals had ceased working, no communication was possible except for a small part which did not require DNS querying.

Others

We have not yet confirmed any impact of this failure to other ECCS and related services.