1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
<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>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>
<hr>
<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)
</p>
</body>
</html>
</html>
|