Apache HTTP Server Version 2.4
|Description:||Set timeout and minimum data rate for receiving requests|
|Compatibility:||Available in Apache HTTPD 2.2.15 and later|
This module provides a convenient way to set timeouts and minimum data rates for receiving requests. Should a timeout occur or a data rate be to low, the corresponding connection will be closed by the server.
This is logged at
If needed, the
can be tweaked to explicitly log it:
RequestReadTimeout handshake=5 header=10 body=30
RequestReadTimeout header=20-40,MinRate=500 body=20,MinRate=500
|Description:||Set timeout values for completing the TLS handshake, receiving the request headers and/or body from client.|
|Context:||server config, virtual host|
|Compatibility:||Available in version 2.2.15 and later; defaulted to disabled in
version 2.3.14 and earlier. The |
This directive can set various timeouts for completing the TLS handshake,
receiving the request headers and/or the request body from the client.
If the client fails to complete each of these stages within the configured
408 REQUEST TIME OUT error is sent.
For SSL virtual hosts, the
handshake timeout values is the time
needed to do the initial SSL handshake. If the user's browser is configured to
query certificate revocation lists and the CRL server is not reachable, the
initial SSL handshake may take a significant time until the browser gives up
waiting for the CRL. Therefore the
handshake timeout should take
this possible overhead into consideration for SSL virtual hosts (if necessary).
The body timeout values include the time needed for SSL renegotiation
AcceptFilter is in use
(usually the case on Linux and FreeBSD), the socket is not sent to the
server process before at least one byte (or the whole request for
httpready) is received. The handshake and header timeouts
RequestReadTimeout are only effective
after the server process has received the socket.
For each of the three timeout stages (handshake, header or body), there are three ways to specify the timeout:
The time in seconds allowed for completing the whole stage (handshaking, reading all of the request headers or body). A value of 0 means no limit.
handshake=0 header=0 body=0
mod_reqtimeout completely (note that
handshake=0 is the default already and could be omitted).
Same as above, but whenever data is received, the timeout value is increased according to the specified minimum data rate (in bytes per second).
Same as above, but the timeout will not be increased above the second value of the specified timeout range.