Very Computer

by **Shtirlit** » Wed, 22 Nov 2000 06:49:34

I've tried to understand how does mod_rewite work. But it seems to be
impossible for me to understand it.
Pls, can someone help me with the following examples.

Here is the first one. I need to redirect all requests which came to
http://www.veryComputer.com/* to http://www.veryComputer.com/. Here is the part
of .htaccess file which works, but Ican't understand how does it work.

Rewri*gine On (I turn On rewirute engine)

RewriteCond %{HTTP_HOST} ^www\.mysite\.ru [NC] (here I analyze the
host name. Should I use "\." or it's enough to use just simple '.' in
HTTP_HOST?)

RewriteRule .* http://www.veryComputer.com/ [L,R] (And here I can't
understand what does ".*" mean. And what is the difference between
"^$" or "^/$").

Help me pls.

by **adam** » Wed, 22 Nov 2000 04:00:00

> I've tried to understand how does mod_rewite work. But it seems to be
> impossible for me to understand it.
> Pls, can someone help me with the following examples.

> Here is the first one. I need to redirect all requests which came to
> http://www.veryComputer.com/* to http://www.veryComputer.com/. Here is the part
> of .htaccess file which works, but Ican't understand how does it work.

> Rewri*gine On (I turn On rewirute engine)

> RewriteCond %{HTTP_HOST} ^www\.mysite\.ru [NC] (here I analyze the
> host name. Should I use "\." or it's enough to use just simple '.' in
> HTTP_HOST?)

Your syntax is fine.

Quote:> RewriteRule .* http://www.veryComputer.com/ [L,R] (And here I can't
> understand what does ".*" mean. And what is the difference between
> "^$" or "^/$").

This should be fine too. .* means to match 0 or more of anything. More
completely, "." means anything and "*" means 0 or more of the character
before it. ^ matches the beginning of the string (hence your ^www in
the RewriteCond), $ matches the end of the string. It would appear that
this rewrite should be working. Things to check:

1) Does the server allow you to use .htaccess files. If you're not the
admin, ask them.
2) Does the server have mod_rewrite compiled or loaded in?
3) Will the server allow you to use mod_rewrite directives in a
.htaccess (I'm not sure
specifically which AllowOverride directives are required for this to
work, but if the
error_log says anything about directive not allowed here, its a good
clue).
4) Use the RewriteLog and RewriteLogLevel directives to turn on some
debugging. If you can't figure it out, post some of the debugging
output and we'll try to help (level 4-5 is a good place to start).

For regular expressions (what ., *, ^, $, etc mean) look at:
http://www.veryComputer.com/#regex

-adam

Very Computer

Rewite. It'stoo complicated to understand.

Rewite. It'stoo complicated to understand.

Rewite. It'stoo complicated to understand.