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→How to provide access from Internet to a VE
{{Note|this rule will only work for external clients, i.e. connections originating from a different host — so you can not test if it works locally.}}
{{Note|If you get any errors relating to:
<code>iptables: No chain/target/match by that name</code>
double check to see if you have all the iptables/netfilter modules loaded properly. I had to <code> modprobe xt_tcpudp </code> before getting it to work.}}
The <tt>iptables</tt> utility allows to set up more complex rules for Network Address Translation, involving various protocols and ports. If you wish to get more information on this, consult the numerous Internet sites (e.g. [http://www.netfilter.org netfilter.org]) and tutorials devoted to this issue.