mod_rewrite server messages

Hi

I have on my shop back office an error message that mod_rewrite is not activated on the server

Normally it is activeted by default (my URL's seems OK though and rewrited)

So I did a : grep rewrite

and got 2 error messages

AH00548 : NameVirtualHost has no effect and will be removed in the next release /usr/local/apache/conf.d/ssl.conf:9
AH00558 : Could not reliably determine the server's fully qualified domain name, using xxxxxxxxxxx. Set the 'ServerName' directive globally to suppress this message rewrite_module (shared)

just warning

Ok thank you for the reply.

So I suppose I do not have to worry.