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What causes a connection to close prematurely?

April 26, 2017causes connection prematurely

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What causes a connection to close prematurely?

1 Answer

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• An overloaded origin server. • TCP implementation/interoperability bugs. See the ../SystemWeirdnesses for details. • Race conditions with HTTP persistent connections. • Buggy or misconfigured NAT boxes, firewalls, and load-balancers. • Denial of service attacks. • Utilizing TCP blackholing on FreeBSD (check ../SystemWeirdnesses). You may be able to use tcpdump to track down and observe the problem. {i} Some users believe the problem is caused by very large cookies. One user reports that his Zero Sized Reply problem went away when he told Internet Explorer to not accept third-party cookies.