Solved

2 websites hosted on premise

Posted on 2016-10-03
6
60 Views
Last Modified: 2016-10-13
I have 2 webistes hosted on-premise. Can I point to both of them using the same outside IP, or would each require their own IP address?
0
Comment
Question by:Philip Thomas
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
6 Comments
 
LVL 57

Expert Comment

by:giltjr
ID: 41827350
Simple answer, they each need their own IP address.

More complex answer, if you don't mind specifying a port number on one of them (http://host1.domain.com and then http://host2.domain.com:81) and your firewall can do port mapping, then you can share IP address.  If you had a layer 7 load balancer or a reverse proxy server, you could also share an IP address and the balancer can send to the correct host based on the host name.
0
 
LVL 28

Expert Comment

by:Dr. Klahn
ID: 41827386
Using Apache,as many sites as you wish can be hosted on one IP address using the VirtualHost option.  Incoming HTTP requests are sorted by the web site name in the request header, and then "routed" to the correct vhost.

Note that there are a few restrictions associated with this.  One is that all sites must be running in the same server process, and the other is that if secure HTTP is used, the use of HTTPS must be uniform across all vhosts.

NameVirtualHost *:80
# This VirtualHost is used for requests with no server name.
<VirtualHost *:80>
DocumentRoot /www/localhost
#                    (www).example1.com
<VirtualHost *:80>
ServerName www.example1.com
ServerAlias example1.* www.example1.*
UseCanonicalName on
DocumentRoot /www/example1
</VirtualHost>
#                    (www).example2.com
<VirtualHost *:80>
ServerName www.example2.com
ServerAlias example2.* www.example2.*
UseCanonicalName on
DocumentRoot /www/example2
</VirtualHost>

Open in new window

1
 
LVL 57

Expert Comment

by:giltjr
ID: 41827394
If you are using IIS (which you imply that you are) IIS calls Virtual Hosts Host Headers.  This only works if both sites are hosted on the same IIS Server.  I was assuming that you had 2 separate IIS servers.
0
What Is Transaction Monitoring and who needs it?

Synthetic Transaction Monitoring that you need for the day to day, which ensures your business website keeps running optimally, and that there is no downtime to impact your customer experience.

 
LVL 28

Expert Comment

by:Dan McFadden
ID: 41827527
You can host hundreds of sites on a single IP is you specifically binding all sites to the same IP address AND you must then use the host names fields on each site binding.  The host name must match the FQDN that is resolvable in DNS.

Dan
0
 

Author Comment

by:Philip Thomas
ID: 41827958
Yes, both sites are on the same IIS server.
0
 
LVL 28

Accepted Solution

by:
Dan McFadden earned 500 total points
ID: 41827970
So, very easy to setup.


1. In DNS, make sure that each website has a resolvable Full Qualified Domain Name  (FQDN/URL) that points to the single IP on the server.

For Example:
Server IP = 1.2.3.4
Website A Name = www.domainA.com
Website B Name = www.domainB.com

In DNS, under domainA.com, there should be (at least) an A Record that point www to 1.2.3.4.  So when you do an NSLOOKUP, you should resolve www.domainA.com to 1.2.3.4 or you should resolve 1.2.3.4 to www.domainA.com.  This is the same for domainB.com.

2. On the binding for each site, specifically choose the IP Address from step 1, and fill out the Host Name field to match the FQDNs that are resolvable in DNS.

Dan
0

Featured Post

Don't Cry: How Liquid Web is Ensuring Security

WannaCry is just the start. Read how Liquid Web is protecting itself and its customers against new threats.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

If you're not part of the solution, you're part of the problem.   Tips on how to secure IoT devices, even the dumbest ones, so they can't be used as part of a DDoS botnet.  Use PRTG Network Monitor as one of the building blocks, to detect unusual…
I had an issue with InstallShield not being able to use Computer Browser service on Windows Server 2012. Here is the solution I found.
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …

696 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question