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-rw-r--r--kpov_judge/tasks/nat_vlc/howtos/en/index.html72
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-rw-r--r--kpov_judge/tasks/nat_vlc/howtos/si/index.html80
-rw-r--r--kpov_judge/tasks/nat_vlc/task.py126
-rw-r--r--kpov_judge/tasks/nat_vlc/video.py37
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diff --git a/kpov_judge/tasks/nat_vlc/howtos/en/index.html b/kpov_judge/tasks/nat_vlc/howtos/en/index.html
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-<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>Explanation:</h2></strong><br>
- Set up a computer so that it forwards all packets meant for a certain address, to another computer.</p>
-<p><strong><h2>Instructions:</h2></strong>
- <h3>1. Create two VMs. SimpleArbiter using the disk simpleArbiter and NATServer. </h3>
- You can get the disks at polz.si/media/uploads/kpov/virtualke. As for the NATServer VM, you can use any disk you want like base-student-desktop-2014.
-<br>
- <h3>2. NATServer should have two network interfaces, one should connect to the simpleArbiter VM and the other to the internet.</h3>
- Adapter 1 should be NAT and adapter 2 should be Internal Network.<br>
- Simple Arbiter must be connected to the Internal Network.
-<br>
- <img style="width: 500px; height: 310px;" src="../images/1.jpg" alt="slika-1"></img>
- <h3>3.On NATServer use ifconfig or /etc/network/interfaces to configure the network interfaces you created in virtualbox.<br></h3>
-
- -vim /etc/network/interfaces<br>
- -Set it up like this:<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. Configure SimpleArbiter so that it uses NATServer as the default gateway.</h3>
-
- <h3> 5. Set up DNS (etc/resolv.conf) on NATServer.</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>
- Than we set up the host:<br>
- vim /etc/hosts<br>
- Replace the first line with:<br>
- 127.0.0.1 nat localhost.localdomain localhost<br>
-
- <h3>6. Enable IP forwarding on NATServerju (should be run as root).</h3>
- echo 1 > /proc/sys/net/ipv4/ip_forward
-
- <h3>7. Set up NAT on NATServer using iptables.</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. Use vlc on simpleArbiter to watch the video over your network. </h3> <br>
-
-
- <h3>8. Additional resources </h3> <br>
--https://www.howtoforge.com/nat_iptables<br>
--http://www.bctes.com/nat-linux-iptables.html<br>
-
-
-
-
-
-</body>
-
-</html>
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diff --git a/kpov_judge/tasks/nat_vlc/howtos/si/index.html b/kpov_judge/tasks/nat_vlc/howtos/si/index.html
deleted file mode 100644
index 779cd54..0000000
--- a/kpov_judge/tasks/nat_vlc/howtos/si/index.html
+++ /dev/null
@@ -1,80 +0,0 @@
-<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>
diff --git a/kpov_judge/tasks/nat_vlc/task.py b/kpov_judge/tasks/nat_vlc/task.py
deleted file mode 100644
index 5224495..0000000
--- a/kpov_judge/tasks/nat_vlc/task.py
+++ /dev/null
@@ -1,126 +0,0 @@
-# kpov_util should be imported by add_assignment.py
-
-# Poglej nek film na nekem določenem URL.
-# (?md5 vsota filma?)
-
-# Nastavi nek računalnik tako, da bo izvajal NAT.
-#TODO: finish this
-
-instructions = {
- 'si': '''\
-<p>
-Postavi dva navidezna računalnika: <em>SimpleArbiter</em> in <em>NATServer</em>. <em>NATServer</em> naj ima dva omrežna vmesnika - z enim naj bo povezan na lokalno omrežje, na katerem naj bo tudi simpleArbiter, z drugim pa na Internet.
-
-<p>
-Na <em>NATServer</em> skonfiguriraj omrežne vmesnike tako, da bo imel dostop do Interneta in da bo imel na lokalnem omrežju <code>{{IP_NAT}}</code>. Na <em>NATServer</em> ustvarite še uporabnika <code>{{IP_NAT_user}}</code>.
-
-<p>
-Poskrbi, da bo <em>SimpleArbiter</em> prek DHCP dobil naslov <code>{{IP_simple}}</code>. Poskrbi, da bo <em>NATServer</em> deloval kot prehod za <em>SimpleArbiter</em> in izvajal NAT.
-''',
- 'en': '''\
-<p>
-Set up two virtual machines: <em>SimpleArbiter</em> and
-<em>NATServer</em>. <em>NATServer</em> should have two network
-adapters. Connect the first adapter to <em>SimpleArbiter</em> and the
-second adapter to the Internet.
-
-<p>
-Configure the network in <em>NATServer</em> so that one interface is connected to the Internet while the other is connected to <em>SimpleArbiter</em> and has the address <code>{{IP_NAT}}</code>. Create a user called <code>{{IP_NAT_user}}</code> on <em>NATServer</em>.
-
-<p>
-Configure a DHCP server on <em>NATServer</em> so that <em>SimpleArbiter</em> gets the IP <code>{{IP_simple}}</code>. Also, set up NAT on <em>NATServer</em> and set it as the gateway for <em>SimpleArbiter</em>.
-''',
-}
-
-computers = {
- 'NATServer': {
- 'disks': [
- { 'name': 'student-NATServer',
- },
- ],
- 'network_interfaces': [{'network': 'net1'}, {'network': 'test-net'}],
- 'flavor': 'm1.tiny',
- 'config_drive': False
- },
- 'SimpleArbiter': {
- 'disks': [
- { 'name': 'simpleArbiter',
- },
- ],
- 'network_interfaces': [{'network': 'net1'}],
- 'flavor': 'm1.tiny',
- 'config_drive': False
- },
-}
-
-networks = { 'net1': {'public': False}, 'test-net': {'public': True} }
-
-#ne potrebujemo dnsjev in ip za malibreznewtork manager?
-params_meta = {
- 'IP_simple': {'descriptions': {'si': 'Naslov SimpleArbiter', 'en': 'SimpleArbiter address'}, 'w': False, 'public': True, 'type': 'IP', 'generated': True},
- 'IP_NAT': {'descriptions': {'si': 'Naslov NATServer', 'en': 'NATServer address'}, 'w': False, 'public': True, 'type': 'IP', 'generated': True },
- 'IP_NAT_user': {'descriptions': {'si': 'Username na NATServer', 'en': 'Username on NATServer'}, 'w': False, 'public' : True, 'type' : 'username', 'generated' : True},
- 'IP_NAT_passwd': {'descriptions': {'si': 'Password na NATServer', 'en': 'Password on NATServer'}, 'w': True,'public' : True, 'type' : 'passwd', 'generated' : False},
-}
-
-def task(IP_simple, IP_NAT, IP_NAT_user, IP_NAT_passwd):
- import pexpect
-
- results = kpov_util.ssh_test(IP_NAT, IP_NAT_user, IP_NAT_passwd, (
- ('IP_NAT_ip_forward', 'cat /proc/sys/net/ipv4/ip_forward'),
- ))
-
- # Check if If IP_simple is connected to NAT
- results['IP_simple_ping_to_NAT'] = pexpect.run('ping -c 5 {}'.format(IP_NAT), encoding='utf-8')
- # Check routing table on IP_simple
- results['IP_simple_routing_table'] = pexpect.run('route -n', encoding='utf-8', env={'PATH': '/bin:/sbin'})
- # Tracert Check if IP_simple is connected to internet
- results['IP_simple_to_internet'] = pexpect.run('traceroute 8.8.8.8', encoding='utf-8')
-
- return results
-
-def gen_params(user_id, params_meta):
- params = dict()
- r = random.Random(user_id)
- # IP_NM, DNS_NM, IP_static, DNS_static)
- # dns_servers = ['193.2.1.66', '193.2.1.72', '8.8.8.8', '8.8.4.4', '208.67.222.222', '208.67.220.220']
- net = kpov_util.IPv4_net_gen(r, 253, True, False)
- # params['DNS_NM'] = r.choice(dns_servers)
- params['IP_NAT'], params['IP_simple'] = kpov_util.IPv4_addr_gen(r, net, 2)
- params['IP_NAT_user'] = kpov_util.default_generators['username'](r)
- # params['IP_NM']
- # params['IP_simple'] = kpov_util.IPv4_addr_gen(r, net, 1)
- # params['DNS_static'] = r.choice(dns_servers)
- return params
-
-def task_check(results, params):
- import re
- score = 0
- hints = []
- if re.search(
- "PING.*\r\n64 bytes from {}: icmp_seq=[0-9]+ ttl=64 time=[0-9.]* ms".format(
- params['IP_NAT']), results['IP_simple_ping_to_NAT']):
- score += 3
- else:
- hints.append("Ping to NAT incorrect")
- if results['IP_NAT_ip_forward'].strip() == "1":
- score += 2
- else:
- hints.append("ip_forward not set on NAT?")
- rs = r"1 +{0} +\({0}\)".format(params['IP_NAT'])
- if re.search(rs,
- results['IP_simple_to_internet']):
- score += 3
- else:
- hints.append("traceroute not OK")
- gateway=r'0\.0\.0\.0 +{} +0\.0\.0\.0 +UG'.format(params['IP_NAT'].replace('.', '\.'))
- if re.search(gateway,results['IP_simple_routing_table']) and \
- re.search("Kernel IP routing table\r\nDestination", results['IP_simple_routing_table']):
- score += 2
- else:
- hints.append("route not OK")
- return score, hints
-
-def prepare_disks(templates, task_params, global_params):
- write_default_config(templates['simpleArbiter'], global_params)
-
diff --git a/kpov_judge/tasks/nat_vlc/video.py b/kpov_judge/tasks/nat_vlc/video.py
deleted file mode 100644
index 3c21c82..0000000
--- a/kpov_judge/tasks/nat_vlc/video.py
+++ /dev/null
@@ -1,37 +0,0 @@
-import string, random, os
-#You need to find PIL library on the internet. Just GOOGLE it!!! Other imports are standard.
-from PIL import Image, ImageDraw, ImageFont
-
-#Method for generating random string
-def randomString():
- return ''.join(random.choice(string.lowercase) for i in range(30))
-
-
-image = Image.new("RGBA", (600,150), (255,255,255))
-draw = ImageDraw.Draw(image)
-
-#Font option is optional. If you don't want to use it figure out how to increase font size, because default is veeeeery small.
-
-font = ImageFont.truetype("georgia.ttf", 36)
-txt = randomString()
-
-draw.text((20,50), txt, (20,100,0), font)
-img_resized = image.resize((600,80), Image.ANTIALIAS)
-img_resized.save("out.png")
-
-#Creates .mp4 video from image out.png. Video is 1 second long.
-bashCommand = "avconv -r 1/5 -i out.png -b:v 1000k video.mp4"
-os.system(bashCommand)
-
-# Converts .mp4 video to .avi format. Still 1 second long. ( 2x )
-bashCommand = "avconv -i video.mp4 -c:a copy video.avi"
-os.system(bashCommand)
-
-bashCommand = "avconv -i video.mp4 -c:a copy video1.avi"
-os.system(bashCommand)
-
-# This loop will increas videos length by adding more picesec of the original video.
-last = int(input("Set video length in seconds: "))
-bashCommand = "avconv -i concat:video.avi\|video1.avi -c copy video.avi"
-for i in range(0, last-2):
- os.system(bashCommand)
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-25 07:18:51 +0000