<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt; color: #000000'>Dear All,<br><br>I'm setting up a K12Linux server, that also acts as a router/Firewall for some laptops and workstations.<br>So I 've set up a transparent proxy, Squid, for all traffic passing through the box, in order to monitor and control the network traffic.<br><br>But I can't find out how to also reroute al the traffic from the thinclients to Squid as well.<br><br>Does anybody know how to do that?<br><br>Thanks for any advice.<br><br>Greetings, J.<br><br><br><br><div style="position: absolute; top: -1999px; left: -1988px;" id="stcpDiv">iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j DNAT --to 10.0.0.1:3128 - See more at: http://www.broexperts.com/2013/03/squid-as-transparent-proxy-on-centos-6-4/#sthash.ZGWLthug.dpuf</div><br><br><div style="position: absolute; top: -1999px; left: -1988px;" id="stcpDiv"><span class="pln">iptables </span><span class="pun">-</span><span class="pln">t nat </span><span class="pun">-</span><span class="pln">A PREROUTING </span><span class="pun">-</span><span class="pln">i eth1 </span><span class="pun">-</span><span class="pln">p tcp </span><span class="pun">--</span><span class="pln">dport </span><span class="lit">80</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j DNAT </span><span class="pun">--</span><span class="pln">to </span><span class="lit">10.0</span><span class="pun">.</span><span class="lit">0.1</span><span class="pun">:</span><span class="lit">3128</span><span class="pln"> iptables </span><span class="pun">-</span><span class="pln">t nat </span><span class="pun">-</span><span class="pln">A PREROUTING </span><span class="pun">-</span><span class="pln">i eth0 </span><span class="pun">-</span><span class="pln">p tcp </span><span class="pun">--</span><span class="pln">dport </span><span class="lit">80</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j REDIRECT </span><span class="pun">--</span><span class="pln">to</span><span class="pun">-</span><span class="pln">port </span><span class="lit">3128</span><span class="pln"> iptables </span><span class="pun">-</span><span class="pln">I INPUT </span><span class="pun">-</span><span class="pln">s </span><span class="lit">10.0</span><span class="pun">.</span><span class="lit">0.0</span><span class="pun">/</span><span class="lit">8</span><span class="pln"> </span><span class="pun">-</span><span class="pln">p tcp </span><span class="pun">--</span><span class="pln">dport </span><span class="lit">3128</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j ACCEPT</span> - See more at: http://www.broexperts.com/2013/03/squid-as-transparent-proxy-on-centos-6-4/#sthash.ZGWLthug.dpuf</div><br><br><div style="position: absolute; top: -1999px; left: -1988px;" id="stcpDiv"><span class="pln">iptables </span><span class="pun">-</span><span class="pln">t nat </span><span class="pun">-</span><span class="pln">A PREROUTING </span><span class="pun">-</span><span class="pln">i eth1 </span><span class="pun">-</span><span class="pln">p tcp </span><span class="pun">--</span><span class="pln">dport </span><span class="lit">80</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j DNAT </span><span class="pun">--</span><span class="pln">to </span><span class="lit">10.0</span><span class="pun">.</span><span class="lit">0.1</span><span class="pun">:</span><span class="lit">3128</span><span class="pln"> iptables </span><span class="pun">-</span><span class="pln">t nat </span><span class="pun">-</span><span class="pln">A PREROUTING </span><span class="pun">-</span><span class="pln">i eth0 </span><span class="pun">-</span><span class="pln">p tcp </span><span class="pun">--</span><span class="pln">dport </span><span class="lit">80</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j REDIRECT </span><span class="pun">--</span><span class="pln">to</span><span class="pun">-</span><span class="pln">port </span><span class="lit">3128</span><span class="pln"> iptables </span><span class="pun">-</span><span class="pln">I INPUT </span><span class="pun">-</span><span class="pln">s </span><span class="lit">10.0</span><span class="pun">.</span><span class="lit">0.0</span><span class="pun">/</span><span class="lit">8</span><span class="pln"> </span><span class="pun">-</span><span class="pln">p tcp </span><span class="pun">--</span><span class="pln">dport </span><span class="lit">3128</span><span class="pln"> </span><span class="pun">-</span><span class="pln">j ACCEPT</span> - See more at: http://www.broexperts.com/2013/03/squid-as-transparent-proxy-on-centos-6-4/#sthash.ZGWLthug.dpuf</div><br></div></body></html>