[BlueOnyx:13941] Re: ip alias dns setting

[Gerald Waugh]

On 10/29/2013 07:46 AM, wcstaff at webcoast.com wrote:
>
>> -----Original Message-----
>> From: blueonyx-bounces at mail.blueonyx.it
> [mailto:blueonyx-bounces at mail.blueonyx.it] On
>> Behalf Of Michael Stauber
>> Sent: Monday, October 28, 2013 9:40 PM
>> To: BlueOnyx General Mailing List
>> Subject: [BlueOnyx:13938] Re: ip alias dns setting
>>
>> Hi Tom.
>>
>>> how to add an alias IP address to an existing NIC.
>> Your server already has one IP address configured. The one for "eth0".
>> When you now create a new site and put that onto a new IP address, the
>> GUI will automatically create eth0:0 and will associate the new IP to
>> that. The next new IP address associated to another site will
>> automatically create eth0:1 and so on.
>>
>> When an "alias" IP becomes free (i.e.: no more sites are using it), then
>> it will be removed automatically.
>>
>>> What DNS entry is needed in order to use it for a Vsite, mail server,
> etc?
>> For the alias IP's you use the same methodology to create DNS records as
>> you do for the primary IP. Just use the new IP for these records.
>>
>> Ideally you should avoid using eth1 for Vsites, as this can create
>> routing issues depending on the IP address range that you use there.
>>
>> --
>> With best regards
>>
>> Michael Stauber
> Thanks Michael,
> I don't quite understand?
> Don't I need to have any dns entries for the domain name I'm going to use
> the new IP address for?
> My server has 2 NICS installed with separate IP addresses assigned to each
> one. 
> And under, it will only allow me to add alias IP addresses to eth1.
> Ipconfig reports eth0, eth1, eth1:0 and Lo.
> Do I even need to do set an alias under System Settings - TCP/IP - Interface
> aliases?
> And should I remove the second NIC and just use one with alias IP addresses?
> Thanks
> Tom
>
>
> _
not Michael but,
You do not manually setup the aliases.
I would remove any manually entered aliases.
2nd nic may be used for a local IP address, other than that, you don't
need it unless you are using a sophisticated configuration i.e. bonding
the NICs.

Let the system enter the Ethernet IP aliases as needed based on the IP
you use for the site you configure in the GUI.


Gerald