[Cialug] Remote Access

[Don Cady]

IIRC, the password doesn't actually get sent in the clear. It's everything 
after the authentication we should worry about. The entire session can be 
listened-in on after you've logged in. The data stream can be captured, 
saved, and replayed at any point in the future, and that includes all 
keystrokes.

Don

>I don't have any thoughts on why it won't connect, but I'll reiterate
> the point above that you should tunnel VNC through ssh.  Especially if
> you have port 5900 open.  If some bored sysadmin between networks
> started doing some sniffing, he could see your password, then login to
> your machine, as you.
>
> I VNC into my machines at home, tunnelling through ssh.  I can even
> VNC into my Windows desktop.  I issue the following command:
>
> ssh -L 5900:192.168.0.2:5900 linux.box.com, where 192.168.0.2 is my
> Windows box.  Then, I start VNCViewer, telling it to go to localhost.
>
> As far as VNC on Linux, I found a page a couple years ago that
> suggested putting several entries in /etc/services for different
> resolutions.  In my /etc/services, I have the following:
> #
> # VNC Servers
> #
> vnc-640x480x8 5950/tcp
> vnc-800x600x8 5951/tcp
> vnc-1024x768x8 5952/tcp
> vnc-1152x864x8 5953/tcp
> vnc-1280x1024x8 5954/tcp
> vnc-1600x1200x8 5955/tcp
>
> vnc-640x480x16 5960/tcp
> vnc-800x600x16 5961/tcp
> vnc-1024x768x16 5962/tcp
> vnc-1152x864x16 5963/tcp
> vnc-1280x1024x16 5964/tcp
> vnc-1600x1200x16 5965/tcp
>
> vnc-640x480x24 5970/tcp
> vnc-800x600x24 5971/tcp
> vnc-1024x768x24 5972/tcp
> vnc-1152x864x24 5973/tcp
> vnc-1280x1024x24 5974/tcp
> vnc-1600x1200x24 5975/tcp
>
> vnc-640x480x32 5980/tcp
> vnc-800x600x32 5981/tcp
> vnc-1024x768x32 5982/tcp
> vnc-1152x864x32 5983/tcp
> vnc-1280x1024x32 5984/tcp
> vnc-1600x1200x32 5985/tcp
>
> Then if I want to connect to my Linux box at 1280x1024x32, I specify
> :84 as the destination display for VNC.  VNC displays an X login, and
> I'm good to go.  This is using RH 7.2.
>
> On 8/8/06, Justin Richeson <jrnosee at gmail.com> wrote:
>> I have a question on this though.  I've got a linux system setup at home
>> that has vncserver running on it (ubuntu remote desktop) and I can access 
>> it
>> from my windows desktop on my home network, but when I try and connect 
>> from
>> elsewhere (I have port 5900 forwarded to it on my router) it won't 
>> connect.
>> Any thoughts?
>>
>>
>> On 8/8/06, Daniel A. Ramaley <daniel.ramaley at drake.edu> wrote:
>> > On Tuesday 08 August 2006 09:21, David Stout wrote:
>> > >No my machine does not have a public ip. So If I forward port 22 on my
>> > > router then install VNC viewer on the win x box Do I also need VNC
>> > > Server installed on the SuSe 10.1 box or does it come installed?
>> >
>> > VNC server will need to be on the Linux box. I do not use Suse, but i
>> > know that 10.1 is fairly recent so i would be surprised if it does not
>> > include VNC packages on the installation media.
>> >
>> >
>> ------------------------------------------------------------------------
>> > Dan Ramaley                            Dial Center 118,
>> Drake University
>> > Network Programmer/Analyst             2407 Carpenter Ave
>> > +1 515 271-4540                        Des Moines IA
>> 50311 USA
>> > _______________________________________________
>> > Cialug mailing list
>> > Cialug at cialug.org
>> > http://cialug.org/mailman/listinfo/cialug
>> >
>>
>>
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>>
>
>
> -- 
> Tim
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