It isn’t so much the USB. USB as a design is a master/slave relationship. So you cannot connect 2 normal computers together with an USB cable. It doesn’t matter what you are wanting to do with it.
There have been special USB cables in the past with some smarts in the middle so each computer thinks that it is talking to the middle, and it connects the 2. Whether they emulated serial cables, or LAN, I don’t recall. It has been years, and I never needed one.
The 2 best suggestions so far has been to put in a second NIC in the desktop, and configure the Linux desktop to act as the NAT gateway for the portable. Or just get a NAT router, and have it clone the desktop’s MAC address so it doesn’t look any different to the IT department. Neither of these are a solution if you are in an environment where you don’t own the connected computers.
> On Mar 27, 2015, at 5:30 PM, Yasha Karant <[log in to unmask]> wrote:
>
> The university system at which I am tenured has limited practical respect for Faculty but much lipservice to the concept -- that is the reality. I simply was asking if such a utility existed within EL or Linux in general -- it evidently does not. UUCP does not easily work over USB although at one time it did work for point-to-point RS-232 connections. In the future, I will omit the background as to why I post such a request for a utility, merely that I need such a utility if it exists. In the best of all possible worlds -- not this one -- I would have a grad student, or even a talented undergrad, see if UUCP could be modified. For now, I am using the modern equivalent of sneaker net. Sorry to have bothered you.
>
> Yasha Karant
>
> On 03/27/2015 12:37 PM, Konstantin Olchanski wrote:
>>
>> Yasha, this is getting tiresome - your continuing use of this mailing
>> list to obtain free technical support for (imho) bizarre problems or wishes -
>> most of them complete with pity pledges "please help me, our IT nazi would give me no soup"
>> (as in Soup Nazi, http://en.wikipedia.org/wiki/The_Soup_Nazi, not the other, bad, nazis).
>>
>> If your IT problems are real, and if they negatively affect
>> your work productivity, why don't you have the boss of your boss
>> have a talk with the boss of the boss of the IT departement's boss
>> to straighten it all out? If you work at a university, you must
>> know how this works.
>>
>>
>> K.O.
>>
>>
>> On Thu, Mar 26, 2015 at 04:37:34PM -0700, Yasha Karant wrote:
>>> My desktop workstation (currently X86-64 SL 7) has only one 802.3
>>> physical port. At my university, the IT gestapo will not allow the
>>> use of a local 802.3 repeater (switch or hub) but requires a valid
>>> NIC MAC address and will disconnect any changes. I have no 802.11
>>> WNIC on my desktop workstation. I just have obtained a new HP Zbook
>>> to run X86-64 Linux to replace my old mobile workstation (laptop)
>>> that was underprovisioned for 64 bit operation, had a worn out
>>> keyboard and pointing device, etc. (I regret to state that I am
>>> experimenting with OpenSUSE 13.2 on that machine for reasons beyond
>>> the subject matter of this post.) The IT gestapo will not allow my
>>> workstation to serve as a HTTP server, etc. -- one cannot use scp,
>>> sftp, etc., for file transfer over the IT network from a desktop
>>> workstation (not a designated server). I could attempt to transfer
>>> all of the files to the research network that has much less IT
>>> gestapo control -- but this is as tedious as what I am now doing.
>>> Hence, a question:
>>>
>>> Is there a software application utility that will convert a USB
>>> network between two machines running standard open systems protocols
>>> to allow file transfer between the two machines? I am not referring
>>> to the methods used with an Android device, but with a regular Linux
>>> workstation. A cursory search of such things on the web did not
>>> provide any insight. At one time, UUCP would do this over a RS232
>>> point-to-point link (cable) -- will this approach still work over a
>>> USB (not RS232) link? Is there something better than UUCP?
>>>
>>> Yasha Karant
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