Re: Black / Blank Screen on client, but remote control works
You could check the MTU size setting on any routers on your route to the PC. You could also check the MTU setting on the remote machine too. We had a misconfigured router (and also one on a PC) that gave a grey screen on the viewer but when you moved the mouse, the target system's mouse moved accordingly. Regards, Richard - Richard Harris Environment IT Team Nottinghamshire County Council Extension: 74509 Direct line: 0115 977 4509 - This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager via NCC Help Desk (0115) 9772010. This footnote also confirms that this email message has been swept for the presence of computer viruses. Nottinghamshire County Council Legal Disclaimer ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Re: Remote password..
Set the password using VNCPwd ( http://www.sysworksoft.net/products/vncpwd.html ) or use Fastpush ( http://www.darkage.co.uk ) to reset your config. There are settings in the registry you can use to stop users adding their own password. Check the VNC FAQ for these but I it is DisableOptions=true in HKLM\software\realVNC\winvnc4 If you're using NT,2000 or XP then you could try setting a security right on that key to only allow administrators and the system full control rather than everyone. Removing the user account rights to view that key would also make it harder to look the password up too. Regards, Richard - Richard Harris Environment IT Team Nottinghamshire County Council Extension: 74509 Direct line: 0115 977 4509 - This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager via NCC Help Desk (0115) 9772010. This footnote also confirms that this email message has been swept for the presence of computer viruses. Nottinghamshire County Council Legal Disclaimer ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Re: VNC Security - Windows registry
I would like to see a better encryption process for VNC, as I have had a hacker figure out my password schema Besides encrypting the data stream between host and client there is still (IMO) an issue with WinVNC and storing the encrypted password in the registry. RealVNC 4 stores it's settings in HKLM\Software\Real4 and by default users have the ability to read that section of the registry. At first glance it seems possible to remove the user permissions to the key and this stops users from viewing the encrypted password but does not break VNC4. What side effects would this have on other functions of VNC? Regards, Richard This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager via NCC Help Desk (0115) 9772010. This footnote also confirms that this email message has been swept for the presence of computer viruses. Nottinghamshire County Council Legal Disclaimer ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Re: Update old versions
I wan't to distribute WinVNC 4.0 to all the PC's in our company. But before the install of the new version, I want to uninstall previous versions. 3.3.3 and 4.0b4 Could someone tell me how to uninstall these versions on a silent way? At the risk of blowing my own trumpet :-) Try Fastpush from the www.darkage.co.uk site (all free stuff). Alternatively you can use paid for products like Hyena or make an MSI to do the job for you. Good luck! This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager via NCC Help Desk (0115) 9772010. This footnote also confirms that this email message has been swept for the presence of computer viruses. Nottinghamshire County Council Legal Disclaimer ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Hiding SysTray Icon
TightVNC can have it's icon hidden without loosing the functions that the systray helper provides. http://www.darkage.co.uk/vnc/faq.htm#hide Or http://membres.lycos.fr/tgx874sah/download.php?id=1 This is a tweaked version of 3.3.7 VNC that doesn't require a tray icon to work. Download the zip and read the txt file. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager via NCC Help Desk (0115) 9772010. This footnote also confirms that this email message has been swept for the presence of computer viruses. Nottinghamshire County Council Legal Disclaimer ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Fastpush 7
Hi guys, Firstly appologies for spamming the list - especially to the unix admins who don't have any need for VNC remote install scripts. I've recently updated Fastpush to include support for VNC beta 4. It will handle installation/removal of VNC 3.3.3 as well as the new system. If you are interested - check out www.darkage.co.uk Kind regards, Richard This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager via NCC Help Desk (0115) 9772010. This footnote also confirms that this email message has been swept for the presence of computer viruses. Nottinghamshire County Council Legal Disclaimer ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
(no subject)
I need a PocketPC VNC Server.. Could anyone help me please? I don't know about a VNC version but there's a free remote control tool from Uncle Bill called RemoteDSP.exe on the Windows CE site. I'm sorry I don't have the URL to hand. The main problem with it is that you need to get Joe User to plug in their PDA and kick off the connection. Then their PDA session will be displayed on the host PC (which you can obviously VNC). Hope the helps! Regards, Richard - Richard Harris Environment Nottinghamshire County Council Ext: 4509 - This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager via NCC Help Desk (0115) 9772010. This footnote also confirms that this email message has been swept for the presence of computer viruses. Nottinghamshire County Council Legal Disclaimer ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Re: server settings from a website ??
is it possible to get the vnc-server to download it's settings from internet every -let's say- hour? Every hour? :-) Scripting it shouldn't be too hard although you could be setting yourself up for security problems and a loss of VNC availability if you upload an iffy config. :-) 1. Use REGDIR to get the settings you need from your control workstation. 2. Pipe that to a file and upload to a secure site (or encrypt the document perhaps?) On the target machines: 1. Write a script to use REGINI and WGET. Download the file using WGET and then get REGINI to apply that file to the registry - although some sort of error checking would be a good idea! w 2. Once that's done just restart the VNC service and your new settings will be applied. You could use AT (or WinAT) to schedule the changes on NT boxes and that windows scheduler thingy for ME/2000/XP systems. Service control on 9x operating systems is a bit hit and miss.. getting VNC to restart on that could well be difficult. Perhaps you could kill the process and relaunch it instead. shrug Regards, Richard - Richard Harris Environment Nottinghamshire County Council Ext: 4509 - This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager via NCC Help Desk (0115) 9772010. This footnote also confirms that this email message has been swept for the presence of computer viruses. Nottinghamshire County Council Legal Disclaimer ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: password change
You can use VNCpwd to remotely change a VNC password on a Windows box (NT, 2000 XP). I guess you'd need to restart the service (use SC) to the change to be complete. http://www.sysworksoft.net/products/vncpwd.html Regards, Richard - Richard Harris Environment Nottinghamshire County Council Ext: 4509 - This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager via NCC Help Desk (0115) 9772010. This footnote also confirms that this email message has been swept for the presence of computer viruses. Nottinghamshire County Council Legal Disclaimer ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Re: VNC2SWF
I was thinking it would be cool if the VNC client/server distributed came with the ability to store Shockwave/Flash files from sessions, this would be particularly useful in the area of making tutorials of applications. On the other hand you could use CamStudio which is excellent (although it's Windoze only). The software is open source and will record to just about any codec you have on your PC as well as converting the file to SWF. http://www.ehelp.com/camstudio/product/screenrecording/ Regards, Richard - Richard Harris Environment Nottinghamshire County Council Ext: 4509 - This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager via NCC Help Desk (0115) 9772010. This footnote also confirms that this email message has been swept for the presence of computer viruses. Nottinghamshire County Council Legal Disclaimer ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Fastpush 6.4
Hi all, Fristly, apologies for spamming the list. and to all you non-Windows users - stop reading now you won't find the following of interest. :-) I've updated the Fastpush to 6.4 and it includes: - password encoding at the command prompt - UltraVNC 1.09 - removed the older VNC flavours from the main release (smaller download). You can find it at www.darkage.co.uk/downloads/ Those of you who don't know what fastpush does: http://www.darkage.co.uk/vnc/overview.htm Cheers, Richard This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager via NCC Help Desk (0115) 9772010. This footnote also confirms that this email message has been swept for the presence of computer viruses. Nottinghamshire County Council Legal Disclaimer ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Re: vncpassword - vncviewer
first I`d like to know WHY it is not in vncviewer. If there is no reason against this feature and it`s just to be implemented= - it could be added easily. I need this feature - so possibly others. :) I've checked both RealVNC 337 and TightVNC 128 - neither of these versions (AFAIK) handle raw passwords from the command line. EsVNC and Ultra do support it and the command line is: vncviewer myserver /password mypass EsVNC and Ultra can be found at : http://perso.wanadoo.fr/samfd/esvnc/ Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager via NCC Help Desk (0115) 9772010. This footnote also confirms that this email message has been swept for the presence of computer viruses. Nottinghamshire County Council Legal Disclaimer ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
Re: Ultra firewalling
Your ability not to understand makes VNC in general an untrustworthy product. Controls on a network is not on the users PC, but the network, where the user has no ability to touch. You have a point in that yes you can block ports over the network, but my point was from an internal to internal view only. I was saying that a correctly configured windows NT/2000 box running Ultra could be tweaked to prevent access into it However, as you say, blocking transfers from/to that box to an external system running Ultra is a completely different matter. In that way, yes, you'd have to block the external link, but as VNC can run on almost any port - it would be damned hard to stop. To truly stitch up a network so that users can't transfer files out of the system is very hard. You'd have to have a completely closed system: no physical transfers, ftp, ssh, web, email, blah, blah, blah. Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Ultra VNC born (again)?
What difference is there if I can transfer the file through my vnc connection or if I just connect with vnc and access a sever to download the file from. It just saves me a step in sending the file. There is no additional security risk. UltraVNC is (IMO) a good idea. I pulls a number of ideas into one source and includes a few new ones too. I'm hopeful that a linux version will come out shortly. The sooner the windows version stops keeping the password in the registry the better. As to security, the file transfer mechanism logs into a NT/2000 as the system account. So anyone who knows the VNC password (or cracks it) they can use the file transfer program to access 99.9% of the NT/2000 install. I have emailed Sam about this one and he says he's looking at a fix for it. Personally, I'd like to see UltraVNC access the user's disk with the same user persmissions as the currently logged user by default. (although a better option - for me at least - would be to use the NTLM logon details to grant rights to the file transfer routines). With any VNC release as long as the enhancements can be turned on/off and remain compatable with older releases, I think continued development can only be a good thing for all platforms. Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
Re: still need help
anyone remember myVNC prob from a few days back ? black screen when viewing an XP computer ? Well , its still happening ... please help !! Check your modem MTU size - the wrong values in that make the packet sizes too small (which stops VNC working). Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: SOE VNC - COOL!
What would it take to get RealVNC to have features like SOE VNC, i.e. the NT Authentication? What about other Authentication Realms? We've come back full circle to the plug-in idea haven't we? :-) If VNC was to support different authentication mechanisms, IMO I'd rather have these as options rather than as a standard. Kerberos or LDAP (NDS, openldap, AD) queries might be better in a big network, but could be a nightmare to code for. The other option is what happens when the machine can't see the authentication system, but is still VNCable can you still logon? I think that would be a lot safer than a password based authentication How much work would be required for all viewers to be able to negoiate an authentication method? Have the server report to the client that the following methods are supported perhaps start with the basic VNC system, then offer local user account (okay for windows, unix - I don't know about macs) Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
Re: Legitimate reason for wanting to hide the tray icon in VNC
Hi all, I am a systems tech for a Public Library District in Colorado. We currently have over 250 PCs in 9 libraries, and the number is growing. Our district serves a primarily rural county and our service area covers nearly 4,000 square miles. Our staff has only two PC technicians that support this entire district. That's a hell of support base! :-) Tridia and TightVNC both come with the ability to hide the tray icon. You'll need to add an extra registry key, but that's not rocket science. IMO, if you don't want to show the tray icon, it's better to run Tridia/Tight and hide it rather than not run it. If you don't run it, VNC won't be able to discern who is logged on. This is useful for printing up warnings that the screen is about to be shadowed. On a related topic - how hard would it be to produce a static warning box that didn't disappear until the shadowing stopped? That way your user couldn't be spyed on and you wouldn't have to have the tray. BTW - consider disabling boot from floppy or CD as there's a linux disk that'll allow reg editing / admin access to the local NT/2000 box. Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: VNC 3.3.4/Windows 2000 Terminal Services
I'm too lazy to get up and walk over to the machine and re-attach a keyboard and monitor and mouse. So am I... www.darkage.co.uk and download fastpush. :-) BTW, for everyone else (who may be interested). I've recently uploaded a later edition of Fastpush. This one adds a whoami type icon to the desktop and includes most versions of VNC. I need to add in VNC 334 and ESVnc 1.12 to bring it completely up to date. Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Creating a Hex Password
Now how do I convert the Hex to the binary code for the fastpush? Simple, you don't :-) Run winvnc -defaultsettings from the command line and change the password to what you want it to be. Then, when you've tested it and it works (including a reboot) - use REGDIR to list the reg key in question. You'll want : regdir \registry\machine\software\orl\winvnc3\default You only want the bit marked password. You can safely copy this value into your machine.ini file - although I suggest backing it up as a matter of course. Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
RE : Deploying VNC to Win2k and XP remotely
Hi, I'm interested to know if this kind of script can work on W2K As far as I know, it won't because the script has this line - rem Install the service C:\Progra~1\ORL\VNC\WinVNC.exe -install - and users can't install or start/stop services. With Windows 2k - you could get VNC on the boxes with: 1) Fashpush (sorry for blowing my own trumpet) at www.darkage.co.uk 2) Make a MSI file with the Active Directory toolkit and make it a forced published application to your 2k boxes (no effect on NT4 tho). 3) Or, if you have Novell 4, 5 or 6 - make a zen object and force it on to user workstations via the login script. All of the above options uses extra technology to assume admin rights when the installer kicks off. I've heard that the logon scripts run under administrative priviledges, but I've never tested this. Thanks in advance. Not as far as I am aware. what you could do - and it would be a bit scary - would be to use something like SU or RUNAS and run a VNC installing batch file from the login script. Of course, you run the risk of someone finding your admin password from that, so like I said, it's a bit dodgy. Hope that helps! Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
Deploying VNC to Win2k and XP remotely
This posses a problem, however, as Fastpush does not support eSVNC. True, but you only need to add a folder to the fastpush folder. Then add in a section under the flavours section so that you can choose esvnc from the command line. I'll update Fastpush and you can pick the bits out you need. Ok? Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
Re: NTL Set Top Box Router
My problem is that NTL change the IP address of the set top box (which I assume must be my outside IP) about every 5 hours??? You should be able to do a nslookup (NT/2000/XP) as all NTLworld broadband routers have DNS names. Another option would be to go with dns2go and that type of thing. Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
Re: VNC is hackable
Am I wrong? Wouldn't they have to sniff packets and decrypt to get the password? suppose it can be done, but I don't know that anyone is doing it. I don't know about packet sniffing, but the password can be comprised. You can read the WinVNC password from the registry and there is a vncdec.c program that will decrypt the password for you. There's no registry security on 95/98 - so how hard would it be for a hacker to access it? shrug. NT/2000 are better, but we all know that those systems can and are hacked. What's the deal with programs like zVNC. They use a different connection mechanism, so am I write in saying that the connection is secure, but the registry loophole remains. The question is: can packets be sniffed and this encrypted password be broken with the same registry key code cracker? Any volunteers? IMO, one solution would be some sort of SSH (or local VPN?) connection to the VNC host and then connect via loopback. Easy enough on unix, but not so easy on Windows. I guess this would a pefect use for a modular VNC distro. :-) But then if you want to hack someones system, I'd say you'd go for the weakest systems first. Try your hand at comprimising the local box first. Trawl the registry for saved passwords, or even old PWL files... Failing that, just ring up and ask a user. it's surprising how many people will just tell you their password over the phone. Later, Richard Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
Re: VNC Plugins
I haven't seen anymore posts on this. Is this idea dead in the water? Personally, I like this idea a lot I makes a lot of sense. The idea that you can have a basic VNC server and then a series of plugins. But it's down to the programmers at the end of the day isn't it? ;-) Would you need to write a plug in for each OS, or will some plugins work regardless of what viewer/server OS is? Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
Re: Install VNC via Telnet
I like to install the vnc service on a W2K Client over a telnet connection. it was no problem to install and to start the vnc service. You're close, but you don't get a cigar. :-) The password should go into the local machine part of the registry: hklm\software\orl\winvnc3\default. You could use either reg.exe or regini.exe to do that for you. But how can I type in the password in the registry remotly? See above or you could : run a custom setup.exe with the silent install switch (tricky) Or use FastPush. Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
Re : VNC Help (file copying)
Hiya, Does anyone know how to copy files from your local pc to the remote pc using vnc? Standard VNC doesn't support file transfers, however, there is a new version out called esVNC and that does let you transfer files. EsVNC is only for windows AFAIK. You can get it at : http://perso.wanadoo.fr/samfd/esvnc/ I've only had a quick mess about with it, but it looks pretty hot. Later, Richard - Richard Harris Environment IT, NCC Ext 4509 - Service, price , quality: pick any two. ___ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
