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The Traffic Blog
Clearing out the congestion

Switching production traffic to Apache Traffic Server

Written by ema on Thu, Mar 28, 9:21 AM.

The plan to replace Varnish as the on-disk HTTP cache component of our CDN with Apache Traffic Server is starting to take shape.

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Wikipedia goes 100% Forward Secret

Written by Vgutierrez on Aug 3 2018, 7:19 PM.

On August 1st, we finished up a 6 week transition process which eliminated the last non-forward-secret cipher supported by our TLS termination, which was bare AES128-SHA. This change guarantees that all TLS connections to Wikipedia and its sister projects use cipher suites that provide forward secrecy. Wikipedia is the first major high-traffic site to take this step.

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About The Traffic Blog

Traffic is the sub-team of the Wikimedia Foundation's Site Reliability Engineering team that takes care of our public facing edge network. Some of the things we manage at the public edge include: TLS connection termination and policy, content caching, internal request routing, remote PoPs, Internet peering, global load balancing, and authoritative DNS.