there such thing as...

antken · 09-11-2002, 05:41 AM

hello,

i have a mail server ( mailgear ) on windoze NT and the makers of the software ( symantec ) say it is not a popular product and will be discontinued, so i am out looking for a replacement.

i want to go with linux because, a) its more stable than a windoze box b) i would not have to go near it to restart it every hour or so cos of a stupid service

are there any commercial or non commercial software packages avalible that do the following things:

* Filter incomming and out going mail for banned files and words
* can authenticate users against a windows NT domain for users passwords
* has a web based configuration ( optonial )

thanks
antken

catbert · 09-11-2002, 07:12 AM

*fetchmail, sendmail, procmail
*samba
*webmin, swat, linneighborhood

Google any of the above for loads of information.

antken · 09-11-2002, 07:25 AM

yes, i have all of those but is there anything that is combined like mailgear?

acid_kewpie · 09-11-2002, 07:42 AM

unlikely, Linux does not rely on monolithic programs to complete substantially different tasks. Modular is the way forward!

MasterC · 09-11-2002, 10:57 AM

Which is probably why they are discontinuing the use of this. It's not really that good of an idea (from a business point of view) to make a product not a lot of people use. Acid is correct. Modular is much better. You can pick and choose your favorite ways to accomplish tasks, and use your favorite programs to do it, not let some conglomeration of idiots decide for you.

Cool

antken · 09-11-2002, 03:26 PM

ok then,

how would i go about getting this off the ground then?

i have just worked out in my head how the user will access their mail box, but how could i get a list of users from the nt domain so i can add them into the mail server with a proper username?

on another part of this, obviously i would run a mail server to receive the mail, but how would i receive the mail and filter it so any attachments with banned extentions that are in a config file are either removed from the message or the message is erased and a message is sent back to the sender?

and could this filter be adapted to filter out sware words?

Mara · 09-11-2002, 04:44 PM

Quote:

Originally posted by antken

i have just worked out in my head how the user will access their mail box, but how could i get a list of users from the nt domain so i can add them into the mail server with a proper username?

You need a list of them (with their logins). Then you create accounts on Linux machine for all of them (of just write a script to do it for you if there are many of them, but script requires extra work) and it should be OK. Details depend on the mailserver you choose.

Quote:

on another part of this, obviously i would run a mail server to receive the mail, but how would i receive the mail and filter it so any attachments with banned extentions that are in a config file are either removed from the message or the message is erased and a message is sent back to the sender?

and could this filter be adapted to filter out sware words?

It depends on the program you choose to filter your mail. In most of them you need to write rules saying what to do if ....

antken · 09-12-2002, 04:13 AM

Quote:

You need a list of them (with their logins). Then you create accounts on Linux machine for all of them

at the last count there was just over 2045 users on the NT system

and if i was going to write a script where do i start?

what i was planning on doing was getting a list, live from the system some how, selecting the user that is allowed to use the mail then clicking an add button, all in a web interface

that then puts their name in to a list and a tiny program i have been using will authenticate them against the nt system, see if they have a mail box, if they do let them in, if they dont kick them out

i dont have a problem writing a web interface i could do some of that in my sleep, its the scrips i would have trouble with

Mara · 09-12-2002, 06:38 AM

I've found a nice Perl script :

Code:

#!/usr/local/bin/expect -f
#
# chpwd - script to change a password 
# (intended to assign temporary passwords)
# 
# Miguel A. Lerma - 7/23/1998
#
# usage: ./chpwd username newpasswd
#

set user_name [lindex $argv 0]
set new_pwd [lindex $argv 1]

set timeout 10

spawn /bin/passwd $user_name

sleep 1

expect {
        "^New password: " { 
                sleep 1;
                send "$new_pwd\n"; 
                exp_continue 
        }
        "Re-enter new password: " { 
                sleep 1;
                send "$new_pwd\n"; 
                exp_continue 
        }
        "passwd successfully changed for $user_name" {
                send_user "Passwd Successfully Changed for $user_name\n";
                exit 0
        }
}

send_user "\nPassword change failed.\n"

exit 1

With this script it's rather easy. The script file will look like this:

Code:

#!/bin/bash
useradd username
./chpwd username password

And similar entries for all the users. The only thing is to prepare such a file..