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6. View the access log file on the Apache Proxy server. Messages similar to the following are
contained in the file:
YOUR_WEB_BROSWER_IP - - [03/Feb/2007:13:30:48 -0500] "GET http://YOUR_WEB_SERVER_IP/test.html HTTP/1.0"
200 206 "-" "ApacheBench/2.0.40-dev"
View the access log file on the Apache HTTP server. Messages similar to the following are
contained in the file:
YOUR_PROXY_SERVER_IP - - [24/May/2007:11:38:46 +0800] "GET /test.html HTTP/1.1" 200 206 "-"
"ApacheBench/2.0.40-dev"
These messages verify that the Apache Proxy server configuration is successful.
Error Responses and Redirects
The following three types of error responses can be customized and are addressed in this section:
• Plain text
• Local URL redirect
• External URL redirect
Customizing Plain Text Responses
The following is an example of how to customize a plain text error response:
1. Edit the following file:
/etc/apache2/errors.conf
In the preceding file, change (or add, if it does not exist already) the following line:
ErrorDocument 404 "The page you requested does not exist! Plain text example"
2. Restart your Apache HTTP server for the changes take effect.
3. Verify the custom text error message by opening a browser and entering the following
website:
http://<YOUR_WEB_SERVER_IP>/non-exist
The following message appears:
The page you requested does not exist! Plain text example
Customizing Local URL Redirect Responses
The following is an example for customizing a local URL redirect error message:
1. Edit the following file:
/etc/apache2/errors.conf
In the preceding file, change (or add, if it does not exist already) the following line:
ErrorDocument 404 "/missing.html"
2. Create the following HTML file:
/srv/www/htdocs/missing.html
Add the following lines to the preceding file:
<HTML>
<HEAD>
</HEAD>
<BODY DIR="LTR">
<P ALIGN=CENTER STYLE="margin-bottom: 0cm">
<FONT FACE="Times New Roman, serif">
<FONT SIZE=6>The page you request does not exist!
Local redirects example</FONT></FONT></P>
</BODY>
</HTML>
Installing, Configuring, and Managing Web Server Middleware Stack Components 25