<html> <head> <meta http-equiv=Content-Type content="text/html; charset=utf-8"> </head> <body><font face="Georgia, Times New Roman, Times, serif"> <strong><h1>NAT VLC:</h1></strong> <p><strong><h2>Naloga na hitro:</h2></strong><br> Nastavi računalnik tako, da bo vse pakete za določene naslove prepošiljal na drug računalnik, vzpostavi NAT.</p> <p><strong><h2>Navodila:</h2></strong> <h3>1. Postavi dva navidezna računalnika. SimpleArbiter z diskom simpleArbiter ter NATServer. </h3> Virtualke dobiš na (polz.si/media/uploads/kpov/virtualke). Za NATServer lahko uporabiš base-student-desktop-2014. <br> <h3>2. Postavi NAT server tako, da ima dva omrežna vmesnika. Z enim naj bo povezan na simpleArbiter, z drugim pa na internet.</h3> (settings-Network) Adapter 1 nastavimo na NAT (omrežje), adapter 2 pa na InternalNetwork (lokalno).<br> Simple Arbiter nastavimo na InternalNetwork(lokalno). <br> <img style="width: 500px; height: 310px;" src="../images/1.jpg" alt="slika-1"></img> <h3>3.Na NATServer z ukazom ifconfig in z datoteko /etc/network/interfaces skonfiguriraj omrežne vmesnike<br> tako, da bo en povezan v WAN (internet) in en vmesnik na LAN (simpleArbiter).</h3> -vim /etc/network/interfaces<br> -dopišemo:<br> auto eth1<br> iface eth1 inet static<br> NETMASK 255.255.0.0 # Specify based on your requirement<br> IPADDR 192.168.2.1 # Gateway of the LAN<br> NETWORK 192.168.0.0 # Optional<br> ADDRESS 192.168.0.0 <br> -ifdown eth1<br> -ifup eth1 <br> <img style="width: 500px; height: 310px;" src="../images/2.jpg" alt="slika-2"></img> <h3>4. SimpleArbiter skofiguriraj tako, da bo privzeti prehod uporabljal NATServer.</h3> Nastavi gateway, da ima IP od NATServerja.<br> route add -net IP netmask MASK default gw IP dev eth0<br> <h3> 5. Nastavi DNS (etc/resolv.conf) na NATServerju.</h3> vim /etc/resolv.conf nameserver 203.145.184.13 # Primary DNS Server provided by the ISP<br> nameserver 202.56.250.5 # Secondary DNS Server provided by the ISP<br> Nato nastavimo še host:<br> vim /etc/hosts<br> Prvo vrstico zamenjamo z:<br> 127.0.0.1 nat localhost.localdomain localhost<br> <h3>6. Omogoči posredovanje IP naslovov na NATServerju.</h3> echo 1 > /proc/sys/net/ipv4/ip_forward <h3>7. Nastavi NAT z uporabo paketa iptables na NATServerju.</h3> apt-get install iptables<br> iptables -F<br> ptables -t nat -F<br> iptables -t mangle -F <br> iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE<br> iptables -A FORWARD -i eth1 -j ACCEPT<br><br> service iptables restart <h3>8. Na simpleArbiter z vlc preberi naslov, na katerem si lahko ogledaš kratek filmček. </h3> apt-get install vlc-nox<br> Nastavitev naslova:<br> Open Media > OpenNetwork ....<br> <h3>8. Dodatni viri </h3> <br> -https://www.howtoforge.com/nat_iptables<br> -http://www.bctes.com/nat-linux-iptables.html<br> </body> </html>