Difference between revisions of "Postgrey"
From Linuxintro
imported>ThorstenStaerk (New page: Postgrey is greyListing software for the postfix MTA. = How to get it = Download postgrey from http://postgrey.schweikert.ch/ = How to set it up = * Extract your [[...) |
imported>ThorstenStaerk |
||
| (3 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
| − | Postgrey is [[greyListing]] [[software]] for the [ | + | Postgrey is [[greyListing]] [[software]] for the [http://www.postfix.org/ postfix] [[MTA]]. |
= How to get it = | = How to get it = | ||
| − | |||
Download postgrey from http://postgrey.schweikert.ch/ | Download postgrey from http://postgrey.schweikert.ch/ | ||
= How to set it up = | = How to set it up = | ||
| − | |||
* [[Extract]] your [[postgrey]] [[package]] | * [[Extract]] your [[postgrey]] [[package]] | ||
* Copy postgrey_whitelist_clients to /etc/postfix/ | * Copy postgrey_whitelist_clients to /etc/postfix/ | ||
| Line 36: | Line 34: | ||
* restart postfix | * restart postfix | ||
/etc/init.d/postfix restart | /etc/init.d/postfix restart | ||
| + | |||
| + | = Check if it is running = | ||
| + | To check if postgrey is running you can use this command: | ||
| + | # ps -A | grep postgrey | ||
| + | 1020 pts/1 00:00:00 postgrey | ||
| + | |||
| + | To check if it listens on port 60000 you can use this command: | ||
| + | # nmap localhost -p59998-60002 | ||
| + | |||
| + | Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2007-08-10 07:44 CEST | ||
| + | Interesting ports on lvps87-230-12-146.dedicated.hosteurope.de (127.0.0.1): | ||
| + | PORT STATE SERVICE | ||
| + | 59998/tcp closed unknown | ||
| + | 59999/tcp closed unknown | ||
| + | 60000/tcp open unknown | ||
| + | 60001/tcp closed unknown | ||
| + | 60002/tcp closed unknown | ||
| + | |||
| + | Nmap finished: 1 IP address (1 host up) scanned in 0.049 seconds | ||
= See also = | = See also = | ||
| − | |||
http://www.debuntu.org/postfix-and-postgrey-a-proactive-approach-to-spam-filtering | http://www.debuntu.org/postfix-and-postgrey-a-proactive-approach-to-spam-filtering | ||
| − | |||
| − | |||
Latest revision as of 12:28, 31 March 2012
Postgrey is greyListing software for the postfix MTA.
How to get it
Download postgrey from http://postgrey.schweikert.ch/
How to set it up
- Extract your postgrey package
- Copy postgrey_whitelist_clients to /etc/postfix/
- Copy postgrey_whitelist_recipients to /etc/postfix/
- Add a user named postgrey:
useradd -m postgrey
- start postgrey
./postgrey --inet 127.0.0.1:60000
- make sure postgrey is listening on port 60000:
$ nmap localhost -p59998-60002 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2007-08-10 07:44 CEST Interesting ports on lvps87-230-12-146.dedicated.hosteurope.de (127.0.0.1): PORT STATE SERVICE 59998/tcp closed unknown 59999/tcp closed unknown 60000/tcp open unknown 60001/tcp closed unknown 60002/tcp closed unknown Nmap finished: 1 IP address (1 host up) scanned in 0.049 seconds
- Make sure there is a line like this in /etc/postfix/main.cf:
smtpd_recipient_restrictions = permit_mynetworks,
permit_sasl_authenticated,
reject_unauth_destination,
check_policy_service inet:127.0.0.1:60000
- restart postfix
/etc/init.d/postfix restart
Check if it is running
To check if postgrey is running you can use this command:
# ps -A | grep postgrey 1020 pts/1 00:00:00 postgrey
To check if it listens on port 60000 you can use this command:
# nmap localhost -p59998-60002 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2007-08-10 07:44 CEST Interesting ports on lvps87-230-12-146.dedicated.hosteurope.de (127.0.0.1): PORT STATE SERVICE 59998/tcp closed unknown 59999/tcp closed unknown 60000/tcp open unknown 60001/tcp closed unknown 60002/tcp closed unknown Nmap finished: 1 IP address (1 host up) scanned in 0.049 seconds
See also
http://www.debuntu.org/postfix-and-postgrey-a-proactive-approach-to-spam-filtering
