Thanks David!!
I have a static IP.
Last year I configured an old laptop with a private IP running LAMP +
BIND + Postfix + Dovecot and used port forwarding.
After this discussion I'm thinking I need a router capable of routing
multiple IPs that would replace my consumer grade router.... however it
is not fully clear to me.
Thanks for your help!!
Keith
On 2023-07-09 13:50, David Schwartz via PLUG-discuss wrote:
> AFAIK, the Cox router can be configured to either run DHCP or as a
> Static IP address. Either way, it can only listen to one IP. They do
> run DHCP from the local hubs, but the IPs themselves rarely change,
> and you’re sharing them with the whole neighborhood.
>
> Most hosting providers share a single IP among multiple accounts
> coming into a server. There are two separate IPs for DNS hosting on a
> totally different server. If you want your own dedicated IP for your
> account, you can usually get it. But I can’t think of any that let
> you set up a separate IP for individual services unless they’re on
> separate servers in different facilities. I’ve had hosting accounts
> where they share a pool of IPs among hosting accounts, and I’d have
> up to 6 IPs, but each account only had one IP and all of the services
> used that one IP.
>
> The only situations I’ve heard where people are using multiple IPs
> is to have backup internet providers, like Cox, CenturyLink, etc, in
> case one of them goes down. In those cases, you need a router designed
> to handle multiple (usually two) WAN ports where one is primary and
> the other is a failover.
>
> -David Schwartz
>
>> On Jul 9, 2023, at 12:33 PM, Keith Smith via PLUG-discuss
>> <plug-discuss@lists.phxlinux.org> wrote:
>>
>> Hi,
>>
>> Was looking at the raspberrypi this morning and it brought me to the
>> same place I have come to several times in the post.
>>
>> I have a business account with Cox Cable which allows me to run 1 or
>> more servers. Last year I used an old laptop to make a web server
>> using Ubuntu, Apache, MySQL, PHP, plus Postfix and dovecot, plus
>> BIND. I'm a PHP dev so I felt pretty good about that achievement.
>>
>> I only have 1 public IP and everything on my network has a private
>> IP. I used port forwarding to get the web server to work.
>>
>> Supposedly I can get multiple IPs from Cox. On several occasions
>> I've asked the level 1 how I would configure 1 or more servers on
>> the public IPs they can provide and they do not know how.
>>
>> At some point in the future I'm thinking I'd like to create a
>> publicly facing group of PIs to run as a web server (or maybe
>> more)... 1 for HTTPS, 1 for DNS, 1 for mail, and 1 for MySQL (on a
>> private IP ?).
>>
>> I assume I would use the Cisco gizmo that has coax in and RJ45
>> out... the out would go into a small switch which would route each
>> IP to the appropriate PI based on the BIND config. I assume I can
>> plug my Netgear router into the switch that currently has multiple
>> devices connected to it on private IPs, and which provides WIFI.
>>
>> I assume I can add a router in between the Cisco (modem?) and my
>> Netgear and everything would work as it does now. The added router
>> would then be in place to deal with any additional IP address that
>> Cox would provide?
>>
>> Thanks in advance for any help!!
>>
>> Keith
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