Saturday, 15 September 2012

ruby on rails - What's the usage for Host header in http? -



ruby on rails - What's the usage for Host header in http? -

in http protocol, saw have host header, like

host: www.google.com:3333

what's usage header? why need header?

when http request hits server, hits ip/port combination. header shows host requested.

many machines serve multiple hosts same ip. without header, wouldn't know host requested.

ruby-on-rails apache http rest tomcat

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