[SOLVED] trying to access internet at university

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bcuconato
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[SOLVED] trying to access internet at university

Post#1 by bcuconato » 23 Nov 2016, 13:09

EDIT: solved by editing the connection, choosing the right specs on the network manager (domain, username, password, correct security configuration: PEAP in my case). a little embarrassing. still no wifi, though.
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hello there,

I'm trying to use Porteus on my university computers. surprisingly I can easily boot Porteus 3.1 Xfce (I'd have thought they would have locked access to the BIOS), so that is no problem. I'm having problems getting access to the internet. the solution might be here: https://forum.porteus.org/viewtopic.php?f=81&t=2915
fanthom wrote:please add export http_proxy="http://username:password@1.2.3.4:3128" to your desktop autostart file
but could someone help me doing this? how do I access this autostart file? I think I know the IP, but I don't know the port (that's the 3128 part in the quote, right?). there's also an additional quirk: my university's network has subdomains, so that university employees have a username in a certain subdomain (like uni-name/username) and students have it in another (academia/username). I don't know how to incorporate that into the command, but I'll try different ways as soon as I know the port!

more info: my university computers are 64-bit windows 7 Dell computers, mostly. I'm trying to use their wired connection, as the wifi does not seem to work out of the box on Porteus (and also because it's unnecessary to have the wifi if I can use the wired connection).
Last edited by bcuconato on 28 Nov 2016, 19:37, edited 1 time in total.

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wread
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Re: trying to access internet at university

Post#2 by wread » 24 Nov 2016, 00:36

@bcuconato
I work at the university and there is the same schema you mentioned.
I have a dual boot machine running Porteus on my own and MSWindoz that the uni uses. They assigned me a fixed IP/Password that I do not use at all, for I do not use Windows.

The uni-network uses a Class B private IP address range.
Using the Porteus pns-tool, you can set the internet connection to a fixed address, so I tried different address ranges until I found the highest transfer rates possible (over 150 MB/sec!), then I made the module zzz-pns-tool and did put in "modules". Genial! :D

The security people -though- can remotely view all screens of the uni, and they noticed my high-velocities downloads. Now they are trying to force me to use the IP assigned to me, not the one I am using; they hired extra a security expert (so they told me :crazy: ) to penetrate my machine and force me to my assigned IP. For this task they used the Port 139 trick. And they did it, but then I closed that port to avoid the penetration.

To show the security people their failure I display velocity tests almost every day. :Yahoo!:

Now they will force me to use their slower IP by blocking the IP addresses of many nameservers, so I should use the local nameserver that they offer paired to my assigned IP. But I have a list of "secret" nameservers that do the job and set one of them at /etc/resolv.conf every time I navigate.

Now I am building a private name server running in my machine to win them the struggle...I hope definitely :P

Enjoy!
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Re: trying to access internet at university

Post#3 by Bogomips » 24 Nov 2016, 01:46

^^^ A fine business, wread!
:ROFL: BTW what's this port 139 trick?

P.S. Something not to be sniffed at, brokenman. Being nicely ensconced in an Institute of Highter Learning and having a download speed of 154 MB/sec. Just think all that could do for Porteus! :D
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Re: trying to access internet at university

Post#4 by wread » 26 Nov 2016, 00:17

@Bogomips
Normally, Porteus, as many other distros, has Port 139 open. You can check your system by typing "nmap -sT localhost".
This can be used as a backdoor exploit. See http://cd.textfiles.com/hmatrix/Tutoria ... _0163.html
or http://howtohackpc.blogspot.com/2009/02 ... 5-and.html

Penetrating Porteus, knowing that the root password is "toor", seems to be an easy task :evil:

In my case, I have my "fast IP" and namesever set with fanthom's pns-tool :ROFL: The hack at the uni detects my login by marking the "forbidden-IPs" and force-assigning my regular one to me, the slow one, accompanied by the local nameserver (this namesarver detects unwanted IP requests! and sites with stream downloads).

Hacking, I stated that starting up in text mode and then starting the x server, I could log in to my fast IP. Then, weeks later, they blocked me my nameservers (those from my ISP at home).

Closing Port 139 using my rc.local did the job. They cannot assign me the slow IP, but they keep blocked the nameservers they know. So I change my /etc/resolv.conf with a working nameserver and go... :Yahoo!:

I guess I am using an IP reserved for automatic cashier machines (I hope one not in use by the sponsor bank!), they work at maximum speed.

Regards!
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bcuconato
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Re: trying to access internet at university

Post#5 by bcuconato » 28 Nov 2016, 13:33

first of all, sorry for the delay everyone, I did not get any emails about your replies, so I didn't see them until now!
wread wrote:The uni-network uses a Class B private IP address range.
Using the Porteus pns-tool, you can set the internet connection to a fixed address, so I tried different address ranges until I found the highest transfer rates possible (over 150 MB/sec!), then I made the module zzz-pns-tool and did put in "modules". Genial! :D
[/quote] when I started reading this I did not imagine that it would come to a war between you and the IT guys, that's amazing! hahaha

the internet here is pretty good, so I was just trying to actually get access to it! (I hope they don't mind me dual-booting Porteus...)

I'm not sure I could do the hacking you did, either!

It turns out I can get the cable internet working by just choosing the right specs on the network manager (domain, username, password, correct security configuration: PEAP in my case). I think that the wifi will be much more difficult, as I can't even see the connection on the GUI, but that's a problem for another day, as I don't need it now. thanks for the reply, wread!

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