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Strange behaviour of web directory requests without a trailing slash

When you call up a web page and you give a directory name WITHOUT a training slash, the web server return a "moved temporarily" page - code 302 - giving you the same name WITH a trailing slash as your new page:

Dorothy:~ grahamellis$ telnet 192.168.200.162 80
Trying 192.168.200.162...
Connected to 192.168.200.162.
Escape character is '^]'.
GET /jdemo HTTP/1.0
 
HTTP/1.1 302 Moved Temporarily
Date: Thu, 06 Mar 2008 14:20:08 GMT
Server: Apache-Coyote/1.1
Location: http://192.168.200.162/jdemo/
Content-Length: 0
Connection: close
Content-Type: text/plain


and that's followed by

Dorothy:~ grahamellis$ telnet 192.168.200.162 80
Trying 192.168.200.162...
Connected to 192.168.200.162.
Escape character is '^]'.
GET /jdemo/ HTTP/1.0
 
HTTP/1.1 200 OK
Date: Thu, 06 Mar 2008 14:20:55 GMT
Server: Apache-Coyote/1.1
Set-Cookie: JSESSIONID=51F67B6EBA96D532A6E405BAD2129968; Path=/latmjdemo
Content-Type: text/html;charset=ISO-8859-1
Content-Length: 1070
Connection: close


This extra loop means that you'll get very odd behavior if you call for a page without a trailing slash on a server on which either
a) You don't have the server name properly set up or
b) You are proxying, and your ProxyPassReverse isn't compatibly configured.
(written 2008-03-06)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
A657 - Web Application Deployment - Using httpd to front Tomcat
  [576] Why run two different web servers - (2006-01-25)
  [631] Apache httpd to Tomcat - jk v proxy - (2006-03-03)
  [1377] Load Balancing with Apache mod_jk (httpd/Tomcat) - (2007-10-02)
  [1939] mod_proxy_ajp and mod_proxy_balancer examples - (2008-12-13)
  [1940] URL rewriting with front and back servers - (2008-12-14)
  [1944] Forwarding session and cookie requests from httpd to Tomcat - (2008-12-14)
  [2483] Clustering on Tomcat - (2009-10-30)
  [3018] Tuning Apache httpd and Tomcat to work well together - (2010-10-27)
  [3999] Handling failures / absences of your backend server nicely - (2013-02-08)

A608 - Web Application Deployment - Apache httpd mod_proxy
  [934] Clustering, load balancing, mod_rewrite and mod_proxy - (2006-11-21)
  [1006] Apache httpd and Apache Tomcat together tips - (2006-12-24)
  [1121] Sharing the load with Apache httpd and perhaps Tomcat - (2007-03-29)
  [1376] Choosing between mod_proxy and mod_rewrite - (2007-10-02)
  [1767] mod_proxy and mod_proxy_ajp - httpd - (2008-08-22)
  [2062] Virtual hosting and mod_proxy forwarding of different domains (httpd) - (2009-03-01)
  [2273] Three recent questions on Tomcat Convertors - (2009-07-07)
  [2325] Apache, Tomcat, mod_proxy - (2009-08-06)
  [2482] Load balancing with sticky sessions (httpd / Tomcat) - (2009-10-29)
  [3293] Distributing the server load - yet ensuring that each user return to the same system (Apache httpd and Tomcat) - (2011-05-18)
  [3339] Simplest ever proxy configuration? - (2011-06-28)
  [3680] How can I run multiple web servers behind a single IP address? - (2012-04-02)
  [3892] Distributed, Balanced and Clustered Load Sharing - the difference - (2012-10-13)

A603 - Web Application Deployment - Further httpd Configuration
  [345] Spotting a denial of service attack - (2005-06-12)
  [466] Separating 'per instance' data from binaries and web sites - (2005-10-16)
  [526] Apache httpd - serving web documents from different directories - (2005-12-12)
  [550] 2006 - Making business a pleasure - (2006-01-01)
  [649] Denial of Service ''attack'' - (2006-03-17)
  [662] An unhelpful error message from Apache httpd - (2006-03-30)
  [755] Using different URLs to navigate around a single script - (2006-06-11)
  [853] To list a directory under httpd on a web server, or not? - (2006-09-02)
  [1009] Passing GET parameters through Apache mod_rewrite - (2006-12-27)
  [1080] httpd.conf or .htaccess? - (2007-02-14)
  [1207] Simple but effective use of mod_rewrite (Apache httpd) - (2007-05-27)
  [1351] Compressing web pages sent out from server. Is it worth it? - (2007-09-14)
  [1355] .php or .html extension? Morally Static Pages - (2007-09-17)
  [1381] Using a MySQL database to control mod_rewrite via PHP - (2007-10-06)
  [1551] Which modules are loaded in my Apache httpd - (2008-02-23)
  [1554] Online hotel reservations - Melksham, Wiltshire (near Bath) - (2008-02-24)
  [1564] Default file (MiMe types) for Apache httpd and Apache Tomcat - (2008-03-04)
  [1619] User and Group settings for Apache httpd web server - (2008-04-22)
  [1636] What to do if the Home Page is missing - (2008-05-08)
  [1707] Configuring Apache httpd - (2008-07-12)
  [1762] WEB-INF (Tomcat) and .htaccess (httpd) - (2008-08-20)
  [1778] Pointing all the web pages in a directory at a database - (2008-08-30)
  [1954] mod_rewrite for newcomers - (2008-12-20)
  [1955] How to avoid duplicating web page maintainance - (2008-12-20)
  [1974] Moving a directory on your web site - (2009-01-03)
  [2060] Database connection Pooling, SSL, and command line deployment - httpd and Tomcat - (2009-03-01)
  [2272] Monitoring and loading tools for testing Apache Tomcat - (2009-07-07)
  [2478] How did I do THAT? - (2009-10-26)
  [2900] Redirecting a page - silent, temporary or permanent? - (2010-08-03)
  [3133] An image from a website that occasionally comes out as hyroglyphics - (2011-01-14)
  [3449] Apache Internal Dummy Connection - what is it and what should I do with it? - (2011-09-19)
  [3635] Parse error: parse error, unexpected T_STRING on brand new web site - why? - (2012-03-03)
  [3862] Forwarding a whole domain, except for a few directories - Apache http server - (2012-09-17)
  [3955] Building up from a small PHP setup to an enterprise one - (2012-12-16)
  [4001] Helping search engines with appropriate 400 error codes - (2013-02-11)
  [4307] Identifying and clearing denial of service attacks on your Apache server - (2014-09-27)


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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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