yeah, interestingly enough removing ipvalve and adding access log magic,
puts the X-Forwarded-For in the localhost_access.log ... but strange
nevertheless.

On Fri, Mar 24, 2023 at 11:44 AM Mark Thomas <ma...@apache.org> wrote:

> Maybe try commenting out the RemoteIpValve in Tomcat and retest so you
> can see exactly what headers Tomcat is seeing. Alternatively, since this
> is over http, Wireshark or similar could help.
>
> Mark
>
>
> On 24/03/2023 10:29, Leon Rosenberg wrote:
> > Hi,
> >
> > we have following setup
> > apache 2.4 on a ubuntu host, in front of docker-container with tomcat9
> (on
> > same host).
> > Connection is via apache mod_http/proxy.
> >
> > Internal IP of the host is 10.138.0.3 (where httpd and docker are
> running).
> > In localhost_access log we see always 10.138.0.3 address. If going
> through
> > port 8080 directly, without httpd, we see the correct IP-Address.
> >
> > We have added RemoteIpValve to server xml.
> > <Valve className="org.apache.catalina.valves.RemoteIpValve"
> >                  remoteIpHeader="X-Forwarded-For"
> >                  protocolHeader="X-Forwarded-Proto"
> >                  internalProxies="10\.138\.0\.3"/>
> >
> > http config also has ProxyAddHeaders on, also I understand that to be
> > default anyway:
> >    ProxyPass / http://10.138.0.3:8080/
> >    ProxyPassReverse / http://10.138.0.3:8080/
> >    ProxyErrorOverride Off
> >    ProxyAddHeaders On
> >    <Proxy *>
> >          Require all granted
> > ProxyAddHeaders On
> >    </Proxy>
> >
> > When we print out all headers in a request, the X-Forwarded-For is
> missing,
> > so obviously tomcat does something with it, but doesn't trust the httpd?
> So
> > probably the line internalProxies="10\.138\.0\.3" is wrong, bug I can't
> get
> > my head around it.
> >
> > any help would be highly appreciated
> > kr
> > Leon
> >
>
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