Limiting connections to URL's by mask per 10 seconds

[Max Smirnov]

Hi,

I need to implement a limit number of connections to the URL's by mask (^/url/) not per one second, but per 10 seconds to 3. Is it possible with mod_qos? Can you give an example of config?

And one more question, does the mod_qos changes HTTP headers sent to Apache, like nginx write client IP address to X-Real-IP or X-Forwarded-For?

Thanks.

[Pascal Buchbinder]

Eaxmple:

SetEnvIf Request_URI ^/url/ LimitMe
QS_EventLimitCount LimitMe 10 3

mod_qos may set headers using http://opensource.adnovum.ch/mod_qos/#QS_SetReqHeader
but you might also want to have a look at those resources:

• http://opensource.adnovum.ch/mod_setenvifplus/#RequestHeaderPlus
• http://httpd.apache.org/docs/2.2/mod/mod_headers.html#requestheader
• http://httpd.apache.org/docs/2.2/mod/mod_proxy.html

[Amanullah Khan]

my objective is a little bit different. I have dynamic URL from server. And i want to limit each URL only 8 connections.

SetEnvIf Request_URI ^/en/.+ LimitMe
QS_EventRequestLimit LimitMe 10

but still it's only working for the 1st URL only not for the 2nd or others. Also i woould like to donate where i can do that ??

[Pascal Buchbinder]

You can use QS_LocRequestLimitMatch to limit the number of concurrent requests allowed for a predefined URL pattern.

QS_LocRequestLimitMatch ^/en/ 10

But this creates only one single counter which counts every request to an URL matching the provided regular expression.

If you need a separate counter for each URL, you would have to configure separate rules (which means that at least part of the dynamic URL must be already known in advance).

 QS_LocRequestLimitMatch ^/en/ 10
 QS_LocRequestLimitMatch ^/it/ 10
 QS_LocRequestLimitMatch ^/fr/ 10
 QS_LocRequestLimitMatch ^/es/ 10
 QS_LocRequestLimitMatch ^/de/ 10

[Amanullah Khan]

Soory but this is not working

if i use only
QS_EventRequestLimit ^/en/ 10
it did not work
but if use

SetEnvIf Request_URI ^/en/ LimitMe
QS_EventRequestLimit LimitMe 10

the above works.

now i would like to explain my URL
i have following types of URL

http://xx.xx.x.x/en/t8vm81ky3ob3-65881-2/1.rar ==> this should be 10 connect, no IP limit
http://xx.xx.x.x/en/at49yfx31nyq-75317-2/2.rar ==> this should be 10 connect, no IP limit but every URL

[Pascal Buchbinder]

Ah I'm sorry
I used QS_LocRequestLimitMatch in the text but the wrong directive in the example
I updted may comment above.

[Pascal Buchbinder]

If 1.rar and 2.rar are known file names, you could configure

QS_LocRequestLimitMatch ^/en/.*/1.rar
QS_LocRequestLimitMatch ^/en/.*/2.rar

[Amanullah Khan]

sir again you are getting mistake, i dont have only one URL. i have 200-300
URLs. So adding each of them is very hard for me. Cann't we add some rule ?? that will work for any url. As i said earlier the URLs are dynamic.

[Pascal Buchbinder]

Aha, I was not sure what you really intended to configure (does not really fit this discussion - it's not really related to this topic here).

So you would need a rule which limits the number of "the very same" requests: check, how many other requests are accessing the server using the same URL, e.g. by iterating through the scoreboard, right?

No, that's currently not possible.
And I don't understand the benefit of such a rule.

[Amanullah Khan]

i think i am not able to express my question clear to you. See it's just i
don't want limit over IP but over the URLs.I mean it should work for any
URL from the server.

On Thu, 27 Feb 2020 at 22:55, Pascal Buchbinder pbuchbinder@users.sourceforge.net wrote:

Aha, I was not sure want you really intended to configure (does not really
fit this discussion - not really related to this topic here).

So you would need a rule which limits the number of "the very same"
requests: check, how many other requests are accessing the server using the
same URL, e.g. by iterating through the scoreboard.

No, that's currently not possible.
And I don't understand the benefit of such a rule.

---

Limiting connections to URL's by mask per 10 seconds
https://sourceforge.net/p/mod-qos/discussion/697421/thread/2917b50e/?limit=25#fbc5/a6ea/880c/9989

---

Sent from sourceforge.net because you indicated interest in
https://sourceforge.net/p/mod-qos/discussion/697421/

To unsubscribe from further messages, please visit
https://sourceforge.net/auth/subscriptions/