You are correct, I used section 6.1. Its working now thanks On Mon, Jan 31, 2011 at 01:49:08PM +0100, Giles Coochey (giles at coochey.net) wrote: > On 31/01/2011 13:46, Jobst Schmalenbach wrote: > >Hi. > > > >I have two internet connections, the ADSL2+ is very > >very cheap (but fast 10mb) and I want to use the SHDSL (2mb) > >only for mail,ssh,http OUT and the ADSL2+ only for > >surfing. > > > >I all works fine if people specify the proxy in the > >browser, but in case like flash it of no use. > > > >Further if I can make the 80/443 traffic go through > >the proxy only, its an added bonus. If this can be > >done, fine. Bue I want all 80/443 traffic go through host2. > > > > SHDSL ADSL2+ > > ------ ------- > > host 1 host2 > > SQUID > > ------ ------- > > | | > > ------------ > > host3 > > ------------ > > | > > eth1 > > > >On host 3 I have been trying to do this with IPtables, but I am stuck, > >I tried to utilise squid too, does not work > > > >tried: > > > > iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j DNAT --to $PROXY:3128 > > iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 443 -j DNAT --to $PROXY:3128 > > > >browser tell me "invalid request". > > > >All I want is to redirect all traffic through host2 if ports 443 and 80 > >are encountered, thats all. If it goes through the proxy it is an > >added bonus, but not required. > > > > > >ANy ideas, anyone? > > > > > Read the transparent proxy howto... you may need to do SNAT as well as DNAT. > http://tldp.org/HOWTO/TransparentProxy-6.html > > -- > Best Regards, > > Giles Coochey > NetSecSpec Ltd > NL T-Systems Mobile: +31 681 265 086 > NL Mobile: +31 626 508 131 > GIB Mobile: +350 5401 6693 > Email/MSN/Live Messenger: giles at coochey.net > Skype: gilescoochey > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos -- Time flies like the wind. Fruit flies like a banana. | |0| | Jobst Schmalenbach, jobst at barrett.com.au, General Manager | | |0| Barrett Consulting Group P/L & The Meditation Room P/L |0|0|0| +61 3 9532 7677, POBox 277, Caulfield South, 3162, Australia