No incoming network access

Unplanned; Complete

Overview

Affected services
  • University Website
  • Core Firewall
  • Worktribe
  • Janet
Outage Time
10:00 AM, 27-May-16 — Ongoing
Description
There appears to be a problem with the Janet service, resulting in inbound connections to the University's network failing. We are still investigating the scope of this outage. Outbound connections are unaffected. **UPDATE** CIS are investigating whether this is a firewall fault or an issue with Janet. Janet connectivity has been affected since 10:00 **UPDATE 2** CIS have discovered and corrected a firewall misconfiguration. The effect was to block new incoming connections but existing connections were maintained. We are investigating further.

Technical Information

Technical Information

Work summary
Investigations are ongoing into the cause and a resolution.
Technical summary
Janet incoming connections are not being routed
Affecting
All inbound nework connections
Servers / Hardware
Janet
Criticality
high
Impact description
All users with incoming connections to the University network.
Change Reference
Additional comments

Request, Authorise and Publish

Requested by Brian Wallace on 27-May-2016
Authorised by User Services
Publish to IS Website (Service Status and Alerts page): Yes
Published by Brian Wallace to EdLAN-announce@lists.ed.ac.uk


Additional Details

Risk classification
Risk assessment
Other people involved
Notes for future reference