[PLUG] Basic Web App Knowledge

[Paul Heinlein]

On Mon, 27 Sep 2010, Rich Shepard wrote:

> The requested URL /sql-ledger/login.pl was not found on this server.
>
> despite localhost/sql-leger/login.pl being the address I've used for 
> years. I am without clue where to look for the source of this error 
> so I can fix it.
>
>   /etc/httpd/httpd.conf and /etc/httpd/sql-ledger-httpd.conf have 
> not changed since I last accessed it.
>
>   What's a good introduction that will allow me a better 
> understanding of what's going on behind the browser? I've a couple 
> of other web apps (and I can access them locally) and knowing more 
> about the whole process will make me a more comfortable admin. The 
> appache.org http project documentation page for version 2.2 has a 
> bunch of links. Where should I start?

Temporarily bumping the LogLevel up to "debug" is always a great 
start:

   http://httpd.apache.org/docs/2.2/mod/core.html#loglevel

I'll emphasize the "temporarily": debug-level logs are large and full 
of details you may not want leaked.

-- 
Paul Heinlein <> heinlein at madboa.com <> http://www.madboa.com/