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List:       redhat-list
Subject:    Re: Fw: sendmail access file?
From:       "gary () umc" <gary () umc ! aspiren ! com>
Date:       2001-07-31 6:23:41
[Download RAW message or body]

hi Rodolfo,

Many thanks for your advise... I followed your instructions, it work!...
This will be very helpful for those people like me ^_^..

Btw, what is the different between 1 & 2
1. php-imap-4.0.4pl1-9
2. imap-2000-9

without 2nd once, I can't find ipop3 service, how come by default rh didn't
install the 2nd once? or I didn't select it for install??? then imap is
under which option? What is the 1st once use for?

Again Thanks for all.....

ps: is anyone tested Amavis with RH7.1 any advise???

best wish,
gary

----- Original Message -----
From: Rodolfo J. Paiz <rpaiz@indahaus.com>
To: <redhat-list@redhat.com>
Sent: Friday, July 27, 2001 11:34 PM
Subject: Re: Fw: sendmail access file?


> Let's first define what you want to do:
>
> Obviously you want to stop all unauthorized relaying.
>
> And you want to allow relaying from:
>
> 1. an IP range?
> 2. authorized users?
>
> If (1), simply add the range to /etc/mail/access like so:
>
> 123                     RELAY
> 123.123         RELAY
> 123.123.123             RELAY
> 123.123.123.123 RELAY
>
> Note that A, B, and C networks only (evenly divided among dots). This is
> the only way sendmail does networks; the last entry, of course, is a
single
> host.
>
> Do *NOT* do:
>
> @domain.com             RELAY
>
> since then anyone will be able to spam through your server by merely
> setting a From address in your domain, even if it doesn't exist.
>
> If (2), change these lines:
>
> >dnl TRUST_AUTH_MECH(`DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
> >dnl define(`confAUTH_MECHANISMS', `DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
>
> to these:
>
> TRUST_AUTH_MECH(`DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
> define(`confAUTH_MECHANISMS', `DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
>
> by removing the initial "dnl". Use m4 to create the sendmail.cf file (BUT
> BY GOD BACK IT UP FIRST) as shown at the top of the mc file, then restart
> sendmail. Test by sending, and if anything is wrong quickly put your
backup
> back and check your mc very carefully. :)
>
> Now, go to your /etc/pam.d directory and you'll see a bunch of files. Make
> sure there is one named smtp. If there is not, simply copy the pop file to
> smtp.
>
> cp pop smtp
>
> Finally, ensure that /usr/lib/sasl/Sendmal.conf exists and has the
> following single line as its content:
>
> pwcheck_method:pam
>
> To test whether this has worked in setup, connect to your mailserver's
SMTP
> port:
>
> telnet localhost 25
>
> Issue an EHLO command:
>
> ehlo localhost
>
> Then quit.
>
> You should get back a bunch of lines that start with "250-". One of them
> should say:
>
> 250-AUTH LOGIN PLAIN
>
> Whew. In theory, we're done. Now, go to your mail client and find your
> account setup. In the servers part, somewhere in there you have the
ability
> to check off a box saying your outgoing mailserver requires
authentication.
> Check it, then try to send mail.
>
> Time to do lots of testing. Have several people try to relay through your
> server (they should be denied). Now have someone relay from the IP range
> you put in access (should work). Finally, have a valid user *with
> authentication enabled* try to relay from anywhere (should work).
>
> Voilą!
>
> >ps: anyone know any How-to for sendmail auth??? I've tried to configure,
but
> >not success yet.... hope someone can help to advise....like what is the
> >requirement and steps needed??
>
> Hopefully the above is what you needed for SMTP AUTH. Post back with
> results, OK?
>
>
> --
> Rodolfo J. Paiz
> rpaiz@indahaus.com
>
>
>
> _______________________________________________
> Redhat-list mailing list
> Redhat-list@redhat.com
> https://listman.redhat.com/mailman/listinfo/redhat-list
>



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