CODEWITHSUNDEEP
iiskeep-alive
Evgenyt
Evgenyt

Reputation: 10721

Shouldn't the IIS send Keep-Alive header

I've enabled "HTTP keep-alive" in IIS 7.5 settings. But still, the IIS doesn't respond with Connection: keep-alive header (to both FF and Chrome)

As I noticed, Nginx responds with this header when I enable keep-alive on it.

Shouldn't the Connection: keep-alive header be sent by server in response to requests?

Upvotes: 4

Views: 3580

Answers (2)

Jaap
Jaap

Reputation: 3220

In HTTP/1.1 persistent connections are the default:
http://www.w3.org/Protocols/rfc2616/rfc2616-sec8.html#sec8

In other words, IIS doesn't really need to (however Apache seems to always send it).

You could verify this with netstat or as I tend to do with tcpview (a small sysinternals tool which you can download from microsoft: http://technet.microsoft.com/en-us/sysinternals/bb897437.aspx)

Upvotes: 7

Evgenyt
Evgenyt

Reputation: 10721

It appears that IIS doesn't send the Connection: keep-alive. Still it doesn't close the connection and browser reuses it for further requests.

Upvotes: 0

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