Trac already sets the Expires header itself, so it is likely your  
proxy software does not respect this value to begin with. The "IP  
authentication" thing is probably referring to check_auth_ip in  
trac.ini, which locks an authenticated session to only work with the  
IP that created it. This is not likely to be a problem unless you have  
multiple proxies in a transparent rotation.

--Noah

On Dec 11, 2008, at 2:46 AM, Jonathan Carter wrote:

>
> Hi
>
> I have users that are accessing my trac installation behind a proxy.
> They seem to authenticate fine, but then the pages they access still
> shows that they aren't logged in. It seems that the proxy caches the
> pages too aggressively, but it doesn't seem to affect any other sites.
>
> Someone suggested that I add <META HTTP-EQUIV="Expires"  
> CONTENT="Mon, 06
> Jan 1990 00:00:01 GMT"> in the <head> section, but that didn't seem to
> make any difference.
>
> Another trac user suggested that I disable IP based authentication,  
> but
> I couldn't find any documentation on it.
>
> Is there anything I could do to make trac work for these users?
>
> thanks
> Jonathan
>
> >


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