How to set the maxAllowedContentLength to 500MB while running on IIS7?
According to MSDN maxAllowedContentLength
has type uint
, its maximum value is 4,294,967,295 bytes = 3,99 gb
So it should work fine.
See also Request Limits article. Does IIS return one of these errors when the appropriate section is not configured at all?
See also: Maximum request length exceeded
The limit of requests in .Net can be configured from two properties together:
First
Web.Config/system.web/httpRuntime/maxRequestLength
- Unit of measurement: kilobytes
- Default value 4096 KB (4 MB)
- Max. value 2147483647 KB (2 TB)
Second
Web.Config/system.webServer/security/requestFiltering/requestLimits/maxAllowedContentLength
(in bytes)- Unit of measurement: bytes
- Default value 30000000 bytes (28.6 MB)
- Max. value 4294967295 bytes (4 GB)
References:
- http://www.whatsabyte.com/P1/byteconverter.htm
- https://www.iis.net/configreference/system.webserver/security/requestfiltering/requestlimits
Example:
<location path="upl">
<system.web>
<!--The default size is 4096 kilobytes (4 MB). MaxValue is 2147483647 KB (2 TB)-->
<!-- 100 MB in kilobytes -->
<httpRuntime maxRequestLength="102400" />
</system.web>
<system.webServer>
<security>
<requestFiltering>
<!--The default size is 30000000 bytes (28.6 MB). MaxValue is 4294967295 bytes (4 GB)-->
<!-- 100 MB in bytes -->
<requestLimits maxAllowedContentLength="104857600" />
</requestFiltering>
</security>
</system.webServer>
</location>
IIS v10 (but this should be the same also for IIS 7.x)
Quick addition for people which are looking for respective max values
Max for maxAllowedContentLength
is: UInt32.MaxValue
ð¡ 4294967295 bytes
: ~4GB
Max for maxRequestLength
is: Int32.MaxValue
ð¡ 2147483647 bytes
: ~2GB
web.config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.web>
<!-- ~ 2GB -->
<httpRuntime maxRequestLength="2147483647" />
</system.web>
<system.webServer>
<security>
<requestFiltering>
<!-- ~ 4GB -->
<requestLimits maxAllowedContentLength="4294967295" />
</requestFiltering>
</security>
</system.webServer>
</configuration>