Subscribe to receive notifications of new posts:

Path MTU discovery in practice

2015-02-04

BGPIPv6IPv4

Last week, a very small number of our users who are using IP tunnels (primarily tunneling IPv6 over IPv4) were unable to access our services because a networking change broke "path MTU discovery" on our servers. ...

Kyoto Tycoon Secure Replication

2014-12-22

TLSHTTPSSecurity

Kyoto Tycoon is a distributed key-value store written by FAL Labs, and it is used extensively at CloudFlare. Like many popular key-value stores, Kyoto Tycoon uses timestamp-based replication to ensure eventual consistency and guarantee ordering....