Everybody Hates DOS

(Denial of service attacks, that is)

httpd.conf Directives to Control Resource Use

RLimitCPU

Limit server CPU time

RLimitMEM

Limit server memory usage

RLimitNPROC

Limit number of processes the server can spawn

LimitRequestBody

Limit size of the request body

LimitRequestFields

Limit the number of HTTP fields in header

LimitRequestFieldSize

Limit the size of the largest field in header

LimitRequestLine

Limit the larget request line that can be sent

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