Could I ask why you need to do this?  It might be possible with a dedicated IP for the main hosting address, but seems like an odd request.

Thank you for the replies.

Mitch,
"Could I ask why you need to do this?  It might be possible with a dedicated IP for the main hosting address..."

I have 2 dedicated servers.

Server A is in "production". It responds as expected to "www.rfp-leads.com"

Server B is a copy of server A.  I hoped to test the code on server B.
If I use the domain name in a link, it executes server A as expected.
I had hoped to use the IP address of server B to execute the code on server B.
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bryantrv,

"The address would be http://64.50.166.245/~username/rfp-leads/rlc/tpCompany.php"

I did try several variations of this.
Since I know the "production" server A does work, I tried to execute it using its IP address.
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I tried
http://64.50.166.245/~<edited>

This does execute OK, but it executes the "main" code at /public_html/index.php
I want to execute the code at /public_html/rfp-leads/rld/index.php
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I tried
http://64.50.166.245/~<edited>/rfp-leads/

But I got a blank page.
I know I return a blank page if I am suspicious about the input.
I will investigate this.
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I tried
http://64.50.166.245/~<edited>/rfp-leads/rld/index.php

I got
404 Not Found
The server can not find the requested page:
64.50.166.245/~<edited>/rfp-leads/rld/rld/inde9.php?framesetDate=20090807 (port 80)

Again I know my code has been triggered because
"?framesetDate=20090807" was added to the link -- this I recognize.

Also I see the subdirectory "rld/rld" has been duplicated -- probably by me.
---

Eventually, if an IP address works, I will program the IP into my <base statement.
That statement now contains
<base href="http://www.rfp-leads.com/rld/" />
which points to the current version subdirectory.
---

Perhaps it would be easier if I just used a slightly different domain name on server B.
---

Thank you for your replies.
I will work on this.
I will report back.

Robert

<Edited to remove Usernames, not recommended to post in forums ~Troy>

Another thought- if you are running a name server on the backup server, you should be able to "hard wire" your computer to look at the backup- that's how I do it.
I'm not sure about Windows, but on Linux I simply add the line to my /etc/hosts file, and comment it out when I don't need it.

All,

My error was in the HTML that I generate.
In particular the "<base ..." statement.

I was insisting on using the domain name instead of HTTP_HOST
even when HTTP_HOST was numeric.

Now I use HTTP_HOST in all cases. It is simpler code.

Now I can execute using
IP address
or
IP address/subdomain
or
IP address/subdomain/sub directory

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Also, when uploading images, I use "realpath( ... ['DOCUMENT_ROOT'])"
to develop the path name for files.

When invoking the code using a domain name OF A SUBDOMAIN
DOCUMENT_ROOT contains the desired subdomain.

But when invoking the code using the IP address
DOCUMENT_ROOT does NOT contain the subdomain.

So when HTTP_HOST is numeric, I must add the subdomain to "real_path".

---

for some reason, I do not need to use ~username

Thanks for your replies,
Sincerely,
Robert