Thanks..will try your suggestions.
Kind Regards,
Michiel van Es
> -----Original Message-----
> From: Ulric Eriksson [mailto:ulric@siag.nu]
> Sent: dinsdag 23 september 2003 12:30
> To: Michiel van Es
> Cc: 'Ulric Eriksson'; Dave Borgeest; pen@siag.nu
> Subject: RE: Pen webserver with multiple domains
>
>
>
> On Tue, 23 Sep 2003, Michiel van Es wrote:
>
> > Unchanged?
>
> Pen receives the request from the client and passes it on,
> unchanged, to
> the backend server. The server sees the load balancer's IP address and
> logs that. That's what penlog is supposed to take care of.
>
> > I tried the penlogd and the apahce conf so that al logfiles
> are parsed to
> > the penlogd host but still do I get the local Load Balncer
> ip-adress and not
> > the real ip-adress from the client!
>
> Did you use the -l option? Otherwise there is no way for
> penlogd to know
> the client's address.
>
> Here's an example. Start pen like this on the host "www":
>
> /opt/bin/pen -w /var/run/penstats.html \
> -p /var/run/pen.pid -l last1:10000 \
> www:www web1:www web2:www web3:www
>
> And penlogd like this on the host called "last1":
>
> /opt/bin/penlogd -p /var/run/penlogd.pid \
> -l /var/log/apache/logs/access_log 10000
>
> > How do I force round-robin btw?
> > I tried pen with the default settings for http: ./pen http
> host1:80 host2:80
> > and the request are only received at host1:80.
>
> ./pen -r http host1:80 host2:80
>
> The -r is for round robin.
>
> > I want to make pen swicth between the requests and if 1
> server failes, he
> > will do forced redudancy so that he passes all request on
> to the only
> > server.
>
> The failover will happen anyway.
>
> Pen defaults to "stickyness" because it is the safe thing to
> do: necessary
> if you have state on the backend servers and mostly harmless
> otherwise.
>
> > Can I also put the real headers/ip-adress in smtp?
> > I mean..now everyhting seems to come from the Load
> balancers' ip-adress but
> > I want to have the mailservers think it comes from the
> original sending
> > host.
> > This for not garbling the maillog file and for open relay.
>
> That's a bit trickier.
>
> For outgoing mail ("smart host"), just use an access list to
> control who
> can send mail.
>
> For incoming mail... I wouldn't do that. ;-) And it's not
> really necessary
> as smtp has failover built in.
>
> Ulric
>
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