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<strong><h1>OpenVPN and SMB task:</h1></strong>
<p><strong><h2>Quick task:</h2></strong><br>
  Connect to VPN with OpenVPN. Enable access to files through NFS and copy them through SMB.</p>
<p><strong><h2>Instructions:</h2></strong><br>
  1. From Directory with images of virtual computers drag twice the picture SimpleArbiterVPN and VPNClient.<br>
  2. With VirtualBox (or other programs for virtual computers) create two virtual computers and give them VPNCLient.vdi and SimpleArbiterVPN.vdi as disk for storage.<br>
  3. On both set two network interface(NAT and Internal) and run them.<br>
  4. On both VM login with username <strong>root</strong> and password <strong>kaboom</strong> .</p>
<p><h3><u><strong><em>First part: Set up OpenVPN on SimpleArbiterVPN and VPNClient.</em></strong></u></h3>
<p><h4><u><strong><em>Settings on the server:</em></strong></u></h4>
  1. Download packages <strong>uml-utilities</strong>  -> to adjust the virtual network interfaces and packet (<strong>openvpn</strong>). example: sudo apt-get install openvpn<br>
  2. The new virtual network interface create with <strong>tunctl</strong> and specify IP with <strong>sudo ifconfig tap0 10.P.Q.R netmask 255.255.255.0</strong><br>
  3. Then generirate common key (you will share that key with client) with the command: <strong>openvpn --genkey --secret vpnkljuc.key</strong><br>
  4. On server set the configuration file tap0.conf, which should contain (split by lines) "dev tap0","proto tcp-server", "secret vpnkljuc.key"<br>
  5. Run openvpn with <strong>openvpn --config /some_directory/somewhere/tap0.conf</strong><br/>
<p><h4><u><strong><em>Settings on the client:</em></strong></u></h4>
1., 2. steps are the same as the settings on the server<br>
3. Create configuration file tap0.conf, which should contain (split by lines) "remote IP_OF_YOUR_VPN_SERVR", "dev tap0", "proto tcp-client", "secret vpnkljuc.key"<br>
4. On OpenVPN server connect to <strong>openvpn --config /some_directory/somewhere/tap0.conf</strong><br/>
<p>

  <u><strong><em><h3>Second part: Access to imenika /home/test/IME_IMENIKA over NFS</h3></em></strong></u>
<p><h4><u><strong><em>Client settings:</em></strong></u></h4>
   1. Using "sudo apt-get install nfs-kernel-server" we install nfs service<br>
   2. Create a directory /home/test/IME_IMENIKA<br/>
   3. To /etc/exports add line /home/test/bla IP_client
   4. Use sudo exportfs -a to save
   5. Restart service using "sudo service nfs-kernel-server start"
<p><h4><u><strong><em>Client settings:</em></strong></u></h4>
  1. Instal client for nfs with command "sudo apt-get install nfs-common"<br/>
  2. Create mounting directory "sudo mkdir -p /mnt/nfs/home/test" and mount servers file "sudo mount IP_SERVER:/home/test"<br/>
  3. For automatic mounting we add previous commands to /etc/fstab <br/>

<p><h3><u><strong><em>How-to za uporabo kpov-judge za OpenVPN</em></strong></u></h3>

 </font>

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<p>
howto: task_check(results, params):
	Metoda dobi, kot prvi argument rezultat metode task(...), kot drugi pa
	rezultat funkcije gen_params().

	Vrne stevilo pridobljenih tock.


howto: task(...):
	Metoda prejme naslednje argumente:
	- IP naslov VPN streznika
	- DNS naslov VPN streznika
	- IP naslov klienta 1
	- DNS naslov klienta 1
	- IP naslov klienta 2
	- DNS naslov klienta 2

	Vrne slovar rezultatov:
	
    	results['SimpleArbiter_is_VPN_set_up']		
		pove ali je VPN streznik nastavljen

    	results['SimpleArbiter_is_VPN_running']
		pove ali je VPN streznik zagnan

    	results['SimpleArbiter_ping_C1']
		ping rezultati (streznik -> klient1)

    	results['SimpleArbiter_ping_C2']
		ping rezultati (streznik -> klient2)

    	results['SimpleArbiter_nmap_results']
		pove ali sta oba klienta povezana na pravi VPN streznik

    	results['SimpleArbiter_dir_vpn_contents']
		kljuc, ce se ta nahaja v ustreznem imeniku

    	results['SimpleArbiter_nfs_access_control_list']
		preveri ce NFS dovoljuje dostop do /home/test/IME_UPORABNIKA

    	results['VPNClient1_ping_VPN_server']
		ping rezultati (klient 1 -> strežnik)

    	results['VPNClient2_ping_VPN_server']
		ping rezultati (klient 2 -> strežnik)

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