Configuring sendmail not to reveal internal hostnames

Julian Field MailScanner at ecs.soton.ac.uk
Wed Jan 19 17:35:47 GMT 2005


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Eek! You really don't need to (or want to) modify the source just for a
configuration setting. Maintenance nightmare :-(

Errol Neal wrote:

>Thanks everyone. I just decided to modify sendmail/conf.c.
>
>
>
>-----Original Message-----
>From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On
>Behalf Of Julian Field
>Sent: Wednesday, January 19, 2005 11:44 AM
>To: MAILSCANNER at JISCMAIL.AC.UK
>Subject: Re: Configuring sendmail not to reveal internal hostnames
>
>Put this in your sendmail.mc file and rebuild the sendmail.cf file
>
>MASQUERADE_AS(`ecs.soton.ac.uk')
>FEATURE(masquerade_envelope)
>FEATURE(allmasquerade)
>
>Obviously you will want to change ecs.soton.ac.uk to your domain name.
>
>Errol Neal wrote:
>
>
>
>>Excuse me, I mean *not* to expose. Sorry
>>
>>-----Original Message-----
>>From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On
>>Behalf Of Errol Neal
>>Sent: Wednesday, January 19, 2005 11:16 AM
>>To: MAILSCANNER at JISCMAIL.AC.UK
>>Subject: OT: Configuring sendmail not to reveal internal hostnames
>>
>>As the subject says, this is OT. I apologize.
>>
>>I'm searching for a means by which I can tell sendmail to expose the
>>host names of local computers on our network. The computers are named
>>after the users they are associated with so that reveals a lot to folks
>>
>>
>
>
>
>>in the outside world. Anyone know of a means to disable this? I just
>>want to disable the reverse lookup.
>>
>>
>>
>>
>>
>>
>>
>
>--
>Julian Field
>www.MailScanner.info
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--
Julian Field
www.MailScanner.info
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