Nginx rewrite: last & break

[Maxim Dounin]

Hello!

On Sat, Oct 22, 2011 at 10:25:29AM -0400, locojohn wrote:

> Nginx User Wrote:
> -------------------------------------------------------
> 
> > Adding Maxim's statement above into account,
> > outside a location block,
> > "break" behaves just like "last" does since there
> > are no location
> > directives to run here.
> > 
> > Someone just needs to update the docs if this is
> > correct.
> > 
> 
> I have experienced situations when "rewrite something target last;" in
> the server {} section generates the 503 page, while "rewrite something
> target break;" instead works OK.  It means that "break" does not behave
> like "last" in the server section of the virtual host either.

The 500, likely.  This might happen with nginx before 1.1.6 due to 
completely different reason: if there were no matching location 
found, the rewrite directives specified at server level were 
executed inside an implicit location again.

It is fixed in 1.1.6:

    *) Bugfix: the ngx_http_rewrite_module directives specified at "server"
       level were executed twice if no matching locations were defined.

Simple and effective way to prevent such sort of problems is to 
always define "location /".

Maxim Dounin