Running own mail server

[Dan McCullough]

Ah yes I forgot to provide links to those most helpful pieces of information.
http://tldp.org/HOWTO/DNS-HOWTO-5.html
http://www.linux.org/docs/ldp/howto/DNS-HOWTO.html
http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch18_:_Configuring_DNS


On 11/3/06, Bryan Hepworth <bryan at redfedora.co.uk> wrote:
>
>
> > Edward Dekkers <edward at tripled.iinet.net.au> wrote:
> >
> >> Hey there guys,
> >>
> >> for years I've run fetchmail to grab mail from my isp in multidrop mode.
> >>
> >> Now, my area is finally ADSL enabled. The ISP I'm going with gives out
> >> free static IP addresses. I've also bought a domain name which is
> >> currently parked.
> >>
> >> I'm pretty sure I can get the sendmail part sorted, but DNS has me
> >> confused. At the domain name site, I can put in two name server fields.
> >>
> >> Originally I thought I could just run DNS here on my Linux box. But
> >> apparently from what I understand of the reading I'm doing I'd need two
> >> servers to do this.
> >>
> >> Other readings I'm doing are telling me to use my ISP's DNS servers and
> >> have them set up the records for me.
> > I've been doing *EXACTLY* this for quite a few years.  Dan's advice will
> > get you started on DNS but you should probably take things slowly.  Get
> > your DNS set up and check that you can "find yourself" from outside your
> > own network (e.g., go to someplace that provides public internet access
> > and make sure you can connect).  Make sure your ISP allows you to run your
> > own servers.  Many ISPs do not or require that you purchase a business
> > account in order to do so.
> >
> > As another poster has pointed out, you are supposed to have more than one
> > DNS pointing to your network.  The internet police will not swoop down on
> > you if you don't but your network disappears whenever your name server is
> > down.  A quick reboot isn't usually a problem but you probably ought to
> > have some sort of backup available in case you have a hardware failure
> > that has your DNS down for a lengthy period of time.  As an example, my
> > DNS box is also the primary server for my home network so I set all of the
> > drives up with Linux software RAID and then confirmed that the box still
> > functions if I remove a ribbon cable from any disk.  In addition, I have
> > an old PIII/733 that I typically use for testing that I can swap in if I
> > have to.
> >
> > Once you have your network "live" you can start messing with sendmail.
> > Make sure you disable relaying from outside your network.  Getting a basic
> > configuration working isn't hard and it's really nice to be able to
> > control your own e-mail.  The only problem I've run into is my ISP still
> > claims my IP address on a reverse look-up so there are a very few places
> > (spamhaus in particular) who won't accept e-mail from my domain.
> >
>
> Hi
>
> I'm in the middle of a similar exercise - I found the DNS how-to extremely
> helpful. You might want to give it a shot. I bought the o'reilly books too,
> but the how-to really does cover stuff very quickly. I had always thought
> dns was a minefield, but once you look at it logically for your network it
> all makes sense fairly quickly. I guess I'm a month into it now from my
> first stab at it. It's well worth the effort I do have to say.
>
> Best of luck
>
> Bry
>
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