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authorDirk Meyer <dinoex@FreeBSD.org>2004-10-14 13:36:44 +0000
committerDirk Meyer <dinoex@FreeBSD.org>2004-10-14 13:36:44 +0000
commit152c91dfde130b88625f7d7040e65abc80bb276a (patch)
treee4bf686ea94c462a1312fded82ce86efa271f145
parenta2a1feeeb1e5d1cce547fc835c241921133db8ba (diff)
downloadports-152c91dfde130b88625f7d7040e65abc80bb276a.tar.gz
ports-152c91dfde130b88625f7d7040e65abc80bb276a.zip
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-
- CONNECTION RATE CONTROL FOR SENDMAIL
- ------------------------------------
-
-This patch adds connection rate control feature to sendmail.
-
-This means :
-
-- sendmail counts on a sliding window the number of connections
- for each smtp client, and if it exceeds maximum configured
- value, connection is refused with a TEMPFAIL result.
-
-- you may surely want to exclude some hosts/networks from this
- control (local networks, trusted networks, ...). You may
- indicate the list of trusted servers (by ip address) at
- some configuration file.
-
-This file Table of Contents :
-
- 1. Remarks
- 2. Changes and History
- 3. Getting the stuff
- 4. Stuff Contents
- 5. Installing
-
-******************************************************************
-
-REMARKS :
----------
-
-* This feature will be integrated into sendmail in a future version.
-
-* This feature is experimental. Some details on the way it works
- or its interface may change in the future.
-
-* The contents of this stuff is valid for sendmail 8.12.9
-
- All feedback, comments and questions about this stuff are welcome :
- Jose-Marcio.Martins@ensmp.fr (the maintainer)
- with CC to
- sendmail@sendmail.org
-
-CHANGES AND HISTORY :
----------------------
-
-2003/06/11 - Jose Marcio Martins da Cruz - First Release
-
-2003/07/03 - Jose Marcio Martins da Cruz
- Two macros were defined :
- - {client_rate} : connection rate of the client
- - {server_rate} : connection rate of the server
-
-GETTING THE STUFF :
--------------------
-
-You can download all you need at :
-
- http://j-chkmail.ensmp.fr/sm
-
-You need the two patches you'll find there.
-
-STUFF CONTENTS :
-----------------
-
-This stuff contains two patches :
-
-- ratectrl.src.patch : this patch shall be used to modify
- /PATH_TO_SRC/sendmail-8.12.9/sendmail - sendmail C source
- files
-
-- ratectrl.cf.patch : this patch shall be used to modify
- /PATH_TO_SRC/sendmail-8.12.9/cf - m4 configuration kit
- for sendmail
-
-- rate.mc : this is an example of configuration file to be
- used with this stuff, if you want to do connection rate
- control with rulesets. To use it, you shall define the
- variable :
- D{RuleRateMaxClient}5
- This contribution comes from Stephane Lentz
- Stephane.Lentz@ansf.alcatel.fr
-
-
-INSTALLING :
-------------
-
-1. Copy the patches :
-
- cd /PATH_TO/sendmail-8.12.9
- cp /elsewhere/ratectrl.src.patch .
- cp /elsewhere/ratectrl.cf.patch .
-
-2. Eventually save original source code :
-
- cp -pr sendmail sendmail.org
- cp -pr cf cf.org
-
-3. Apply the patches
-
- cd sendmail
- patch < ../ratectrl.src.patch
- cd ../cf
- patch < ../ratectrl.cf.patch
-
-4. Inform sendmail Build system that you want to use this stuff
-
- Add the following line to the file devtools/Site/site.config.m4 :
-
-APPENDDEF(`confENVDEF',`-D_FFR_CONNECTION_RATE_CONTROL')
-
-5. Rebuild sendmail and install
-
- cd /PATH_TO/sendmail-8.12.9
- ./Build -c
- su
- ./Build install
-
-6. Modify your configuration file (sendmail.mc for your site)
-
-You may add the following lines :
-
- FEATURE(rate_control)
-
-This will create the following lines at your sendmail.cf file :
-
------
-
-O CheckConnectionRate=True
-
-F{rate_exclude} -o /etc/mail/rate-control-exclude
-
-# maximum server connection rate (connections / minute)
-#O MaxConnectionRate=600
-
-# maximum connection rate per client (connections / minute)
-#O MaxClientConnectionRate=5
-
-# Width of the window
-#O ConnectionRateWindowSize=60
-
-----
-
-Configuration parameters you may define at your mc file
-
-confRATE_EXCLUDE_FILE The name of the file defining class {rate_exclude}.
- Access to the server will be granted to IP hosts
- networks matching this class without connection
- rate control.
- Default Value : /etc/mail/rate-control-exclude
-
-confMAX_CLIENT_CONNECTION_RATE : Maximum connections per minute allowed
- for hosts/networks not matching {rate_exclude}
- class.
- Default Value : 5 connections / minute.
-
-confMAX_CONNECTION_RATE : Maximum connections per minute for the server.
- Default Value : 600 connections / minute.
-
-confCONNECTION_RATE_WINDOW_SIZE : Width of the measuring sliding window.
- The value used to do rate control is the mean
- of the number of connections inside this window.
- Default Value : 60 (1 minute)
-
-
-
-
-