Denial of Service Attacks
On Tuesday, March 11th, GitHub was largely unreachable for roughly 2 hours as the result of an evolving distributed denial of service (DDoS) attack. I know that you rely on…
IP Address Changes
As we continue to expand the infrastructure that powers GitHub, we want to make everyone aware of some changes to the IP addresses that we use. Most customers won't have…
Downtime last Saturday
On Saturday, December 22nd we had a significant outage and we want to take the time to explain what happened. This was one of the worst outages in the history…
Scheduled Maintenance Windows
As our infrastructure continues to grow and evolve, it's sometimes necessary to perform system maintenance that may cause downtime. We have a number of projects queued up over the coming…
Network problems last Friday
On Friday, November 30th, GitHub had a rough day. We experienced 18 minutes of complete unavailability along with sporadic bursts of slow responses and intermittent errors for the entire day.…