[Privoxy-users] Binding to port 80

[Justin Fielding]

Thanks Ruben.  As you suggested I have use iptables to redirect 80/443 to
8118 and it seems to be working well.

Justin.

On 31 August 2017 at 14:55, Rubén Llorente <porting at use.startmail.com>
wrote:

> Priviledged ports (such as port 80) require administrator (root)
> permissions.
>
> If you don't want to run privoxy as a privileged user, you can make
> privoxy listen at an unprivileged port (such as 8118) and then use some
> iptables trick to redirect traffic that hits your host at port 80 to
> port 8118. Doing this requires to have administrative control on the
> firewall of your host or its network.
>
> Transparent proxification for TLS/SSL traffic does not work, so
> redirecting to port 443 is useless.
>
> If you cannot run privileged applications and cannot administrate the
> firewall, you cannot use privileged ports.
>
> Justin Fielding <justinfielding at gmail.com> wrote:
> > Hi,
> >
> > I've just started playing around with Privoxy and it seems like just
> what I
> > need.  I have a requirement to intercept and divert web traffic for
> certain
> > domains and forward that to an upstream SOCKS proxy.
> >
> > This works great with my initial testing (in terms of privoxy identifying
> > and forwarding the correct traffic) but my issue is now redirecting all
> > HTTP traffic on the network via Privoxy.
> >
> > The only real option I have for doing this is to use a route-map on the
> > core network which diverts all traffic on ports 80/443 to the privoxy
> host.
> >
> > Now my issue.  I cannot change the destination port while diverting the
> > traffic (I can only change the next-hop IP) so need to bind privoxy to
> > ports 80/443.  Unfortunately when I try to bind to port 80 I get hte
> > following error:
> >
> > Fatal error: can't bind to INADDR_ANY:80: Permission denied
> >
> > Any ideas why I'm getting this and how to resolve?  Privoxy is running
> on a
> > dedicated Ubuntu VM and there should be no other processes binding to
> port
> > 80.
> >
> > Thanks,
> >
> > Justin.
>
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