Freenx on Ubuntu (Dapper Drake)

Tuesday, October 3rd, 2006

NX server and client is a GREAT remote X approach that can tunnel over fairly narrow links well and does phenomenally well over a LAN. I frequently use NX in place of VNC when working with Linux based systems because the performance seems much better and the client has a nice way to choose from [...]

Using screen to connect multiple users to a shell session

Thursday, August 24th, 2006

I NEVER knew you could use screen for this…. Let multiple users connect to the same Console (command shell/bash shell) session simultaneously. I’ve looked at screen before. It’s a great *nix utility that’s available for most linux distributions. The primary use I’ve seen for it is to be able to have a shell open, and [...]

x11vnc recompiled to be as widely compatible as possible…

Tuesday, June 6th, 2006

As I said in the earlier posts, I was essentially looking for a “Single click” solution for linux VNC remote desktop support. A solution that doesn’t require the remote support client to change firewall settings, install software, etc. What I’ve settled on is closer to a single cut and paste solution, which is fairly simple. [...]

Remote Tech Support using VNC (Ultravnc SC and x11vnc+wrapper script)

Tuesday, June 6th, 2006

Ok, some time back I’d done a writeup on UltraVNC SC, which is a nice customizable (windows version) VNC server that essentially let’s someone doing remote support build their own downloadable .exe that runs and automatically tries to make a direct connection to a “listening” vnc viewer. It’s good for helpdesk environments as an easy [...]

RealVNC 4.1.1 and prior exploits on the loose

Thursday, May 18th, 2006

As reported over the last several days, there is a critical problem with RealVNC 4.1.1, there is NOW an exploit in the wild for RealVNC 4.1.1, that SANS is looking for more information on. There are updates from RealVNC for all affected product lines. Other VNC implementations have not been reported to be affected. Only [...]

RealVNC 4.1.2 update to patch security vulnerability

Tuesday, May 16th, 2006

A few hours back, I updated My first post on the RealVNC 4.1.1 vulnerability and just saw another story that did not specify WHICH variation of VNC was at risk. TightVNC and UltraVNC seem to be immune according to the discoverer of the flaw. And as far as I’ve seen, there hasn’t been any contradiction [...]

Real VNC 4.1.1 vulnerability – Remote Access without password

Thursday, May 11th, 2006

This is one worth checking out anybody using vnc for remote administration. It looks as though intelliadmin has come across a vulnerability in Real VNC 4 (the slashdot post I saw suggested “any machine running VNC 4.1″) I haven’t tested yet, so I don’t know if this ONLY affects REALVNC’s implementation or is broader. They [...]

Running UltraVNC viewer under wine

Friday, November 25th, 2005

I talked in the last entry about using UltraVNC and UltraVNC Single Click (ultravnc sc) as a means of doing remote desktop support. The idea is that you (the technical support person), setup vncviewer to listen for connections, then the end user with pc problems can download your customized ultravnc server that will connect to [...]

Ultravnc for remote computer support

Friday, November 25th, 2005

A little while back I talked some about TightVNC which for a long time has been my favorite implementation of a remote framebuffer, or remote desktop viewing protocol known as VNC (Virtual Network Computing.) The original VNC (now realvnc) came out of AT&T research labs in the UK and has developed quite a following as [...]

VNC or Tightvnc for remote pc access

Monday, November 14th, 2005

I was surprised to do a search and find that I haven’t mentioned tightvnc before (or even merely VNC as a useful tool.) Ok – here’s the scenario, you need a way to get remote pc access, or remotely view a desktop, maybe it’s a Windows machine and you’re using a Mac? Or Maybe it’s [...]

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