no fixed ip addresses

I'm looking to install a web & exchange server at home, but my existing isp
will not provide a fixed ip address. apart from getting a new isp, does
anyone have any constructive ideas / solutions / configs??

TIA Stu

Ole
Sun Jan 16 14:06:01 CST 2005

"Stu" <Stu@spamtrapstu-martin.com> wrote in
news:e8EyBUA$EHA.2568@TK2MSFTNGP10.phx.gbl:

> I'm looking to install a web & exchange server at home, but my
> existing isp will not provide a fixed ip address. apart from getting a
> new isp, does anyone have any constructive ideas / solutions /
> configs??

This is the way I've done it:

I use dnsalias.org to get myself a dynamic dns record that is updated
frequently, for my case: every five minutes using DirectUpdate. Then I
have alias (cname) records for the domain name that I use, pointing
towards the dnsalias.org domain name that I have. Finally, the MX record
is pointing to one of the domain names that I'm using. An example
follows behind

example.dnsalias.org (dynamically updated)

Then, in the DNS zone file:

www.example.com IN CNAME example.dnsalias.org
mail.example.com IN CNMAE example.dnsalias.org

example.com IN MX 10 mail.example.com

Note, having a MX record pointing to a CNAME record is not completely by
the book, but I've never had any troubles with this configuration.

--
Ole Kristian Bangås

Me
Sun Jan 16 14:40:55 CST 2005

<newbie>How do you get hold of the MX records? Are they supplied when you
register a domain name?</newbie>

Woady


>
> This is the way I've done it:
>
> I use dnsalias.org to get myself a dynamic dns record that is updated
> frequently, for my case: every five minutes using DirectUpdate. Then I
> have alias (cname) records for the domain name that I use, pointing
> towards the dnsalias.org domain name that I have. Finally, the MX record
> is pointing to one of the domain names that I'm using. An example
> follows behind
>
> example.dnsalias.org (dynamically updated)

Ole
Sun Jan 16 15:12:13 CST 2005

"Me" <me@me.com> wrote in news:csejgl$1nr$1@news7.svr.pol.co.uk:

> <newbie>How do you get hold of the MX records? Are they supplied when
> you register a domain name?</newbie>

Guess that depends. To check (on windows) the status of your mx-records
(if they at all are set):

c:\nslookup -type=mx <domain_name>

For me the MX-record was set up automagically when I registered my
domain name.

If the MX-record is not suitable for your needs, you'll need to contact
the company which registered your domain, or the company that hosts your
dns-zone.

--
Ole Kristian Bangås

Lardy
Sun Jan 16 17:18:20 CST 2005

For those times when your server is unavailable you may want some backup...
http://www.no-ip.com/services.php/mail/backup

Lardy.


"Stu" <Stu@spamtrapstu-martin.com> wrote in message
news:e8EyBUA$EHA.2568@TK2MSFTNGP10.phx.gbl...
> I'm looking to install a web & exchange server at home, but my existing
> isp will not provide a fixed ip address. apart from getting a new isp,
> does anyone have any constructive ideas / solutions / configs??
>
> TIA Stu
>

Ole
Sun Jan 16 17:30:29 CST 2005

"Lardy" <thelardmeister@hotmail.com> wrote in
news:41eaf643$1@dnews.tpgi.com.au:

> For those times when your server is unavailable you may want some
> backup... http://www.no-ip.com/services.php/mail/backup

But first of all I would check wether backup MX already is configured. I
got backup MX for free, and preconfigured, when I bought my domain. In such
a situation there is no need for wasting money on another backup MX, in my
opinion.

--
Ole Kristian Bangås

Lanwench
Sun Jan 16 17:32:47 CST 2005

Stu wrote:
> I'm looking to install a web & exchange server at home, but my
> existing isp will not provide a fixed ip address. apart from getting
> a new isp, does anyone have any constructive ideas / solutions /
> configs??
>
> TIA Stu

You can still host your own mail without a static IP - a lot of small
offices don't have them. Look at www.dyndns.org for one of the many free
dynamic DNS hosts out there.

1. Set up an account on their server
2. Set up yourdomain.dyndns.org (for example)
3. Download one of the various update clients (runs as a service) such as
Direct Update and set it to update the appropriate account on the dyndns
servers (or, if you have a consumer firewall appliance like a
NetGear/Linksys that supports this directly, enter the appropriate info
there)
4. Have your domain's MX record set up as yourdomain.dyndns.org (whomever
hosts your public DNS does this)
5. Make sure port 25 is open inbound in your firewall & forwarded to the
internal IP of the Exchange server

They also have an inexpensive 'backup mail' service called Mailhop that will
queue mail & automatically retry delivery to your primary MX record for X
days in the event that your server is unavailable - I recommend this.

Ole
Sun Jan 16 18:23:56 CST 2005

"Lanwench [MVP - Exchange]"
<lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in
news:eajE7VC$EHA.3368@TK2MSFTNGP15.phx.gbl:

> Stu wrote:
>> I'm looking to install a web & exchange server at home, but my
>> existing isp will not provide a fixed ip address. apart from getting
>> a new isp, does anyone have any constructive ideas / solutions /
>> configs??
>>
>> TIA Stu
>
> You can still host your own mail without a static IP - a lot of small
> offices don't have them. Look at www.dyndns.org for one of the many
> free dynamic DNS hosts out there.
>
> 1. Set up an account on their server
> 2. Set up yourdomain.dyndns.org (for example)
> 3. Download one of the various update clients (runs as a service) such
> as Direct Update and set it to update the appropriate account on the
> dyndns servers (or, if you have a consumer firewall appliance like a
> NetGear/Linksys that supports this directly, enter the appropriate
> info there)
> 4. Have your domain's MX record set up as yourdomain.dyndns.org
> (whomever hosts your public DNS does this)
> 5. Make sure port 25 is open inbound in your firewall & forwarded to
> the internal IP of the Exchange server
>
> They also have an inexpensive 'backup mail' service called Mailhop
> that will queue mail & automatically retry delivery to your primary MX
> record for X days in the event that your server is unavailable - I
> recommend this.

One more thing, configure smart host for outgoing smtp traffic. There
are lots of hosts out there that filter smtp traffic coming from dynamic
IP Series.

--
Ole Kristian Bangås

Lanwench
Mon Jan 17 09:43:40 CST 2005

Ole Kristian Bangås wrote:
> "Lanwench [MVP - Exchange]"
> <lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in
> news:eajE7VC$EHA.3368@TK2MSFTNGP15.phx.gbl:
>
>> Stu wrote:
>>> I'm looking to install a web & exchange server at home, but my
>>> existing isp will not provide a fixed ip address. apart from getting
>>> a new isp, does anyone have any constructive ideas / solutions /
>>> configs??
>>>
>>> TIA Stu
>>
>> You can still host your own mail without a static IP - a lot of small
>> offices don't have them. Look at www.dyndns.org for one of the many
>> free dynamic DNS hosts out there.
>>
>> 1. Set up an account on their server
>> 2. Set up yourdomain.dyndns.org (for example)
>> 3. Download one of the various update clients (runs as a service)
>> such as Direct Update and set it to update the appropriate account
>> on the dyndns servers (or, if you have a consumer firewall appliance
>> like a NetGear/Linksys that supports this directly, enter the
>> appropriate info there)
>> 4. Have your domain's MX record set up as yourdomain.dyndns.org
>> (whomever hosts your public DNS does this)
>> 5. Make sure port 25 is open inbound in your firewall & forwarded to
>> the internal IP of the Exchange server
>>
>> They also have an inexpensive 'backup mail' service called Mailhop
>> that will queue mail & automatically retry delivery to your primary
>> MX record for X days in the event that your server is unavailable - I
>> recommend this.
>
> One more thing, configure smart host for outgoing smtp traffic. There
> are lots of hosts out there that filter smtp traffic coming from
> dynamic IP Series.

Yep. Sad, but true.

Stu
Tue Jan 18 16:13:03 CST 2005

so you are saying that domains who "fudge" a fixed IP could be seen to be
spammers perhaps?
"Lanwench [MVP - Exchange]"
<lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in message
news:%23vx8u8K$EHA.3368@TK2MSFTNGP15.phx.gbl...
> Ole Kristian Bangås wrote:
>> "Lanwench [MVP - Exchange]"
>> <lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in
>> news:eajE7VC$EHA.3368@TK2MSFTNGP15.phx.gbl:
>>
>>> Stu wrote:
>>>> I'm looking to install a web & exchange server at home, but my
>>>> existing isp will not provide a fixed ip address. apart from getting
>>>> a new isp, does anyone have any constructive ideas / solutions /
>>>> configs??
>>>>
>>>> TIA Stu
>>>
>>> You can still host your own mail without a static IP - a lot of small
>>> offices don't have them. Look at www.dyndns.org for one of the many
>>> free dynamic DNS hosts out there.
>>>
>>> 1. Set up an account on their server
>>> 2. Set up yourdomain.dyndns.org (for example)
>>> 3. Download one of the various update clients (runs as a service)
>>> such as Direct Update and set it to update the appropriate account
>>> on the dyndns servers (or, if you have a consumer firewall appliance
>>> like a NetGear/Linksys that supports this directly, enter the
>>> appropriate info there)
>>> 4. Have your domain's MX record set up as yourdomain.dyndns.org
>>> (whomever hosts your public DNS does this)
>>> 5. Make sure port 25 is open inbound in your firewall & forwarded to
>>> the internal IP of the Exchange server
>>>
>>> They also have an inexpensive 'backup mail' service called Mailhop
>>> that will queue mail & automatically retry delivery to your primary
>>> MX record for X days in the event that your server is unavailable - I
>>> recommend this.
>>
>> One more thing, configure smart host for outgoing smtp traffic. There
>> are lots of hosts out there that filter smtp traffic coming from
>> dynamic IP Series.
>
> Yep. Sad, but true.
>
>

Lanwench
Tue Jan 18 23:16:34 CST 2005

Stu wrote:
> so you are saying that domains who "fudge" a fixed IP could be seen
> to be spammers perhaps?

Fudging? Not sure what you mean. A lot of (overzealous?) admins block IP
ranges they determine to be dynamic.


> "Lanwench [MVP - Exchange]"
> <lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in
> message news:%23vx8u8K$EHA.3368@TK2MSFTNGP15.phx.gbl...
>> Ole Kristian Bangås wrote:
>>> "Lanwench [MVP - Exchange]"
>>> <lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in
>>> news:eajE7VC$EHA.3368@TK2MSFTNGP15.phx.gbl:
>>>
>>>> Stu wrote:
>>>>> I'm looking to install a web & exchange server at home, but my
>>>>> existing isp will not provide a fixed ip address. apart from
>>>>> getting a new isp, does anyone have any constructive ideas /
>>>>> solutions / configs??
>>>>>
>>>>> TIA Stu
>>>>
>>>> You can still host your own mail without a static IP - a lot of
>>>> small offices don't have them. Look at www.dyndns.org for one of
>>>> the many free dynamic DNS hosts out there.
>>>>
>>>> 1. Set up an account on their server
>>>> 2. Set up yourdomain.dyndns.org (for example)
>>>> 3. Download one of the various update clients (runs as a service)
>>>> such as Direct Update and set it to update the appropriate account
>>>> on the dyndns servers (or, if you have a consumer firewall
>>>> appliance like a NetGear/Linksys that supports this directly,
>>>> enter the appropriate info there)
>>>> 4. Have your domain's MX record set up as yourdomain.dyndns.org
>>>> (whomever hosts your public DNS does this)
>>>> 5. Make sure port 25 is open inbound in your firewall & forwarded
>>>> to the internal IP of the Exchange server
>>>>
>>>> They also have an inexpensive 'backup mail' service called Mailhop
>>>> that will queue mail & automatically retry delivery to your primary
>>>> MX record for X days in the event that your server is unavailable
>>>> - I recommend this.
>>>
>>> One more thing, configure smart host for outgoing smtp traffic.
>>> There are lots of hosts out there that filter smtp traffic coming
>>> from dynamic IP Series.
>>
>> Yep. Sad, but true.

Stu
Sun Jan 23 16:49:24 CST 2005

I mean is this solution "dynamic" so I could be blocked????


"Lanwench [MVP - Exchange]"
<lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in message
news:%23mrgDhe$EHA.3616@TK2MSFTNGP11.phx.gbl...
> Stu wrote:
>> so you are saying that domains who "fudge" a fixed IP could be seen
>> to be spammers perhaps?
>
> Fudging? Not sure what you mean. A lot of (overzealous?) admins block IP
> ranges they determine to be dynamic.
>
>
>> "Lanwench [MVP - Exchange]"
>> <lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in
>> message news:%23vx8u8K$EHA.3368@TK2MSFTNGP15.phx.gbl...
>>> Ole Kristian Bangås wrote:
>>>> "Lanwench [MVP - Exchange]"
>>>> <lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in
>>>> news:eajE7VC$EHA.3368@TK2MSFTNGP15.phx.gbl:
>>>>
>>>>> Stu wrote:
>>>>>> I'm looking to install a web & exchange server at home, but my
>>>>>> existing isp will not provide a fixed ip address. apart from
>>>>>> getting a new isp, does anyone have any constructive ideas /
>>>>>> solutions / configs??
>>>>>>
>>>>>> TIA Stu
>>>>>
>>>>> You can still host your own mail without a static IP - a lot of
>>>>> small offices don't have them. Look at www.dyndns.org for one of
>>>>> the many free dynamic DNS hosts out there.
>>>>>
>>>>> 1. Set up an account on their server
>>>>> 2. Set up yourdomain.dyndns.org (for example)
>>>>> 3. Download one of the various update clients (runs as a service)
>>>>> such as Direct Update and set it to update the appropriate account
>>>>> on the dyndns servers (or, if you have a consumer firewall
>>>>> appliance like a NetGear/Linksys that supports this directly,
>>>>> enter the appropriate info there)
>>>>> 4. Have your domain's MX record set up as yourdomain.dyndns.org
>>>>> (whomever hosts your public DNS does this)
>>>>> 5. Make sure port 25 is open inbound in your firewall & forwarded
>>>>> to the internal IP of the Exchange server
>>>>>
>>>>> They also have an inexpensive 'backup mail' service called Mailhop
>>>>> that will queue mail & automatically retry delivery to your primary
>>>>> MX record for X days in the event that your server is unavailable
>>>>> - I recommend this.
>>>>
>>>> One more thing, configure smart host for outgoing smtp traffic.
>>>> There are lots of hosts out there that filter smtp traffic coming
>>>> from dynamic IP Series.
>>>
>>> Yep. Sad, but true.
>
>

Lanwench
Sun Jan 23 22:31:26 CST 2005

Stu wrote:
> I mean is this solution "dynamic" so I could be blocked????

I still don't understand exactly what you're asking. If you are on a dynamic
IP, yes, you could be blocked from sending mail to certain domains/ISPs.
>
>
> "Lanwench [MVP - Exchange]"
> <lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in
> message news:%23mrgDhe$EHA.3616@TK2MSFTNGP11.phx.gbl...
>> Stu wrote:
>>> so you are saying that domains who "fudge" a fixed IP could be seen
>>> to be spammers perhaps?
>>
>> Fudging? Not sure what you mean. A lot of (overzealous?) admins
>> block IP ranges they determine to be dynamic.
>>
>>
>>> "Lanwench [MVP - Exchange]"
>>> <lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in
>>> message news:%23vx8u8K$EHA.3368@TK2MSFTNGP15.phx.gbl...
>>>> Ole Kristian Bangås wrote:
>>>>> "Lanwench [MVP - Exchange]"
>>>>> <lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote
>>>>> in news:eajE7VC$EHA.3368@TK2MSFTNGP15.phx.gbl:
>>>>>
>>>>>> Stu wrote:
>>>>>>> I'm looking to install a web & exchange server at home, but my
>>>>>>> existing isp will not provide a fixed ip address. apart from
>>>>>>> getting a new isp, does anyone have any constructive ideas /
>>>>>>> solutions / configs??
>>>>>>>
>>>>>>> TIA Stu
>>>>>>
>>>>>> You can still host your own mail without a static IP - a lot of
>>>>>> small offices don't have them. Look at www.dyndns.org for one of
>>>>>> the many free dynamic DNS hosts out there.
>>>>>>
>>>>>> 1. Set up an account on their server
>>>>>> 2. Set up yourdomain.dyndns.org (for example)
>>>>>> 3. Download one of the various update clients (runs as a service)
>>>>>> such as Direct Update and set it to update the appropriate
>>>>>> account on the dyndns servers (or, if you have a consumer
>>>>>> firewall appliance like a NetGear/Linksys that supports this
>>>>>> directly, enter the appropriate info there)
>>>>>> 4. Have your domain's MX record set up as yourdomain.dyndns.org
>>>>>> (whomever hosts your public DNS does this)
>>>>>> 5. Make sure port 25 is open inbound in your firewall & forwarded
>>>>>> to the internal IP of the Exchange server
>>>>>>
>>>>>> They also have an inexpensive 'backup mail' service called
>>>>>> Mailhop that will queue mail & automatically retry delivery to
>>>>>> your primary MX record for X days in the event that your server
>>>>>> is unavailable - I recommend this.
>>>>>
>>>>> One more thing, configure smart host for outgoing smtp traffic.
>>>>> There are lots of hosts out there that filter smtp traffic coming
>>>>> from dynamic IP Series.
>>>>
>>>> Yep. Sad, but true.