Re: [squid-users] Squid TProxy Problem

Amos,
The configuration is as follows:
Internet <-> Squid <-> Clients

Would you please clarify what you mean by declaring "routing packets
to the squid box"? Does the above configuration conform to the
so-called declaration? If it is so, what should be done to solve the
issue?
Thanks again.
By the way, we have compiled libcap from source and it is the latest
version of the library.

Warm Regards,
Ali Majdzadeh Kohbanani

2011/6/6 Ali Majdzadeh <ali.majdzadeh_at_gmail.com>
>
> Amos,
> Sorry, the packet counter increments, I made a mistake, but still no
> logs either in access.log nor in cache.log.
>
> Warm Regards,
> Ali Majdzadeh Kohbanani
>
> 2011/6/6 Ali Majdzadeh <ali.majdzadeh_at_gmail.com>:
> > Amos,
> > Hi
> > The packet counter on -j TPROXY does not increment. So, why clients
> > are able to surf the web?
> >
> > Warm Regards,
> > Ali Majdzadeh Kohbanani
> >
> > 2011/6/6 Ali Majdzadeh <ali.majdzadeh_at_gmail.com>
> >>
> >> Amos,
> >> Hi
> >> Thanks for your reply. Ragarding the documentation, I have inserted
> >> the following routing rules:
> >> ip rule add fwmark 1 lookup 100
> >> ip route add local 0.0.0.0/0 dev lo table 100
> >> Now, access.log is populated with proper logs, but clients can not
> >> surf the web, I mean the proxy server is unable to forward http
> >> responses to clients' browsers. When the client enters for example
> >> www.google.com, the connection to the http server is established but
> >> the process halts at Waiting for www.google.com and after a while
> >> Squid reports the unablility to retreive the requested URL.
> >> By the way, we have disabled selinux.
> >> Any ideas?
> >>
> >> Warm Regards,
> >> Ali Majdzadeh Kohbanani
> >>
> >> 2011/6/6 Amos Jeffries <squid3_at_treenet.co.nz>:
> >> > On 06/06/11 06:32, Ali Majdzadeh wrote:
> >> >>
> >> >> Hello All,
> >> >> I have setup the following configuration:
> >> >> Squid (3.1.12) (--enable-linux-netfilter passed as the one and only
> >> >> configure option)
> >> >> Kernel (2.6.38.3)
> >> >> iptables (1.4.11)
> >> >>
> >> >> I have added the following two directives in squid.conf:
> >> >> http_port 3128
> >> >> http_port 3129 tproxy
> >> >>
> >> >> Also, I have configured iptables with the following rules:
> >> >> iptables -t mangle -N DIVERT
> >> >> iptables -t mangle -A PREROUTING -p tcp -m socket -j DIVERT
> >> >> iptables -t mangle -A DIVERT -j MARK --set-mark 1
> >> >> iptables -t mangle -A DIVERT -j ACCEPT
> >> >> iptables -t mangle -A PREROUTING -p tcp --dport 80 -j TPROXY
> >> >> --tproxy-mark 0x1/0x1 --on-port 3129
> >> >>
> >> >> Everything work as expected, I mean, the users can surf the web and
> >> >> the proxy server is transparent. The problem is that actually there is
> >> >> no caching. I mean, both cache.log and access.log files are empty. On
> >> >
> >> > That would be transparency to the point of not going through the proxy.
> >> > access.log should have entries for each request.
> >> >
> >> >> the other hand, if I manually set the proxy configuration in clients'
> >> >> browsers (the IP address of the squid server and port number 3128)
> >> >> everything is OK; the log files are incremented and objects are
> >> >> cached.
> >> >>
> >> >> Have anyone faced the same issue?
> >> >
> >> > Some. Its usually boiled down to missing out some details omitted. building
> >> > against libcap2 or routing packets to the squid box for example.
> >> >
> >> > Are the packet counters on that -j TPROXY rule showing captures?
> >> >
> >> > Did you follow the rest of the feature config?
> >> >  ie the special sub-routing table? OS packet filtering toggles? selinux
> >> > updated to allow tproxy?
> >> >
> >> > Is this box even routing or bridging port 80 traffic for the network?
> >> >
> >> > Amos
> >> > --
> >> > Please be using
> >> >  Current Stable Squid 2.7.STABLE9 or 3.1.12
> >> >  Beta testers wanted for 3.2.0.8 and 3.1.12.2
> >> >
> >
Received on Tue Jun 07 2011 - 13:16:04 MDT