One site, multiple IP addresses

[John Schmerold]

We have 2 ISPs, I want all sites accessible via both IP addresses. Is that possible?

 

[24x7server]

Hi,

You can create multiple shared IPs on a server and use those IPs for multiple websites/account..

 

[John Schmerold]

Thank you, but what I am trying to do is use two IP addresses for one url so that if one ISP is down, access to the site can be satisfied via DNS round-robin.

 

[Jcats]

You would be better off using a service like

DNS Failover and Monitoring | DNS Made Easy

otherwise, you could assign multiple A Records for each domain but this will not ensure the traffic is only routed to the 2nd server if it fails.

 

[John Schmerold]

We have been using dnsmadeeasy for as long as I can remember - love their service, wish there was an easy way to sync cpanel DNS with dnsmadeeasy.

How do I assign multiple A records for each domain? I don't see that option in gui, is it a command line thing?

 

[Jcats]

No, you would literally just add a second A Record, example, if you go into WHM > Edit a DNS Zone, check the screenshot.

Looks like dnsmadeeasy does have a pugin:

DNS Made Easy Unveils CPanel Plugin - Improving DNS for Shared Hosting | DNS Made Easy News

but says it doesn't support advanced features like the fail over however that was back in 2013, maybe its better now.

 

[John Schmerold]

Thanks for the dnsmadeeasy link, I missed that.

Editing the dns record didn't tell apache to use that second IP address, I made the change in DNS, restarted httpd & dns, still got "Sorry....If you are the owner of this website, please contact your hosting provider"

 

[Jcats]

You have 2 servers correct?

Or are you saying you have 2 different IPs on one server?

 

[John Schmerold]

2 different IPs on one server

 

[Jcats]

Oh sorry, I misunderstood the initial question then. I don't think this is possible with cPanel even with using an include but basically the apache virtualhost has to look like this:

<VirtualHost 1.1.1.1:80 2.2.2.2:80>

or if you literally only have those 2 IP's listening on all interfaces like:

<VirtualHost *:80>

but this would only work if you manually changed httpd.conf which will be overwritten..

Unless you modified the virtualhost template:

/var/cpanel/templates/apache2_4/vhost.default

that first line

<VirtualHost[% FOREACH ipblock IN vhost.ips %] [% ipblock.ip %]:[% ipblock.port %][% END %]>

changing it to

<VirtualHost *:80>

then run

/scripts/rebuildhttpdconf

/scripts/restartsrv_apache

clear your browser history then try browsing to the site again now

 

[cPanelMichael]

Hello,

While it's supported by Apache 2.4, I don't believe cPanel/WHM will recognize multiple IP addresses assigned to a single Virtual Host. I recommend opening a feature request if it's an option you want to see configurable in WHM:

Submit A Feature Request

Thank you.

 

[John Schmerold]

OK. Thank you.