On 9/19/2011 10:04 AM, Dave wrote: > On 9/18/2011 9:50 PM, Kent A. Reed wrote: >> On 9/18/2011 4:51 PM, Dave wrote: >> >>> On 9/18/2011 3:56 PM, Kirk Wallace wrote: >>> >>>> Something like the attached? >>>> >>>> >>> More like the attached picture... >>> >>> Thanks, >>> >>> Dave >>> >> Ok, great picture. Several of us have given you suggestions about the >> devices you can use for the "cell phone or broadband connect device" in >> your diagram, any of which will work to connect your computer on the >> left-hand side to the Internet. >> >> As an aside, when I bought it, the Virgin Mobile USB cellular modem >> called "Broadband2Go" was MS Windows-only as far as Virgin Mobile was >> concerned. Needless to say, both the device and its drivers were >> developed by third parties and Virgin Mobile was clueless.There was info >> available on the Internet about making it work on a Linux box. First >> time was the charm for me. I've read that Ubuntu 10.10 now deals with >> this device natively. For any modem you consider, be sure you can >> connect to it using your version of Ubuntu, either natively or with the >> aid of Google/Bing/etc. >> >> But now for the rest of the story. >> >> For either computer in your diagram to initiate a connection with its >> opposite, it has to know the callee's numerical Internet address (IP), >> normally obtained via DNS, but DNS expects the callee has an fixed IP >> address associated with a known symbolic hostname via a DNS "A record". >> >> It's conceivable that the cellular modem receives the same IP address >> from the telco each time it initializes, but I would not be surprised to >> hear that it does not. >> >> The trick is to use a service like dyndns.com to track your (possibly) >> dynamic IP address and associate it with a known symbolic hostname >> (something like daveshost.dyndns.org, say). You'll have to run a client >> on the computer on the left-hand side to make the tracking happen. They >> are available for Linux. >> >> Once you've done that, your computer on the left-hand side is as easily >> reachable as wiki.linuxcnc.org is. >> >> Don't forget. None of this relieves you of the burden of keeping both >> computers fully secure. The Internet is a wild and wooly place. If you >> get bored some night, try enabling and reading the logs for sshd, httpd, >> and other well-known services on your computer. You'll be amazed at how >> often your system is probed. Like rust, the bad guys never sleep. >> >> Regards, >> Kent >> > How do you like Virgin Mobile's Broadband2go service? I have read > some not so good things about their data service but it is the least > expensive I have seen. > > I found info on getting that device to work even on Ubuntu 9.10. So > 10.04 should not be difficult. > > Thanks, > > Dave > I bought into Virgin Mobile's Broadband2Go service several years ago when my mother's health began to fail and I was making lots of unplanned trips to New Mexico from Maryland. Their data service has worked fine for me all over the greater Washington DC area (from the middle of Maryland into Northern Virgina), in areas south of Cleveland OH, in Albuquerque NM, and in airports in between.
At the time, I liked Broadband2Go better than the comparable service from Verizon Wireless because it was cheaper per MB of data and it wasn't based on a pay-every-month, two-year contract. I could pay for a chunk of data and time when I took a trip and then not pay again until the next trip. Many stores sell their cellular modem. I got mine at Radio Shack during a special markdown period. Recently, like all its competitors, Virgin Mobile has been changing its pricing schedules. I don't know for sure that it is necessarily the cheapest anymore, but I have nothing bad to say about its service. Now that I have an iPhone (purchased because for some absurd reason it is the easiest way to access my wife's lab test reports...don't ask), I suppose I could drop the Virgin Mobile service but haven't since I don't have to pay for dormant periods. Who knows, maybe I'll put it into the land-roving robot my grandson and I are contemplating building:-) Regards, Kent PS - I first got my BB2G cellular modem working in Ubuntu 8.04. The problem isn't so much the modem as it is USB itself. When plugged into a USB port, the device is detected as read-only memory---akin to a CDROM---containing drivers and such for Windows. This memory masks the modem. I'm not a USB expert but apparently Linux has to be convinced to unmount this memory before it can see and connect with the modem. PPS - Yi-Shin Lee suggested 'teamviewer' as an alternative way to connect hosts. I haven't used it but it looks very promising. As a point of information, it apparently depends on the same trick as dyndns. In either case, an app has to run on the remote computer to establish the connection path, whether for the TeamViewer servers specifically or for Internet DNS in general. ------------------------------------------------------------------------------ BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA Learn about the latest advances in developing for the BlackBerry® mobile platform with sessions, labs & more. See new tools and technologies. Register for BlackBerry® DevCon today! http://p.sf.net/sfu/rim-devcon-copy1 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
