Date & time of incident:
Friday, January 27, 2012 - 08:55
Post date:
Friday, January 27, 2012 - 09:04
Incident Description:
Internet connectivity very unstable.
There is a problem with the CERN firewall and outside connections with CERN (traffic both from outside CERN and to CERN from outside) fail.
This affects applications like Service-now which depends on such external connections.
Service Element Affected:
Multiple Services
Impact:
Service is degraded
Status:
Resolved
Resolution date:
Fri, Jan 27, 09:20
Posted by:
IT-CS
Unit responsible for resolution:
IT Department
Updates
Post mortem
At 08:07 during an automatic update of the access-lists on the main firewall, an incomplete file has been unexpectedly applied by the device. As a consecuence 30% of the rules were removed impacting the connectivity to Internet. The correct configuration was applied at 09:07 and the full connectivity restablished. The case will be followed up with the manufacturer.
Connectivity now seems stable
This incident will be closed when we get the confirmation the connectivity is stable
Connectivity is back
More information will be published later on the cause of the incident