TR: Problem With WIN XP Professional
Most of the time i get this error when i have a lack of bandwidth. So can u give us some detail about your connection do u use the java browser or the vnc client. Best regards Scherlinger Eric -Message d'origine- De : akshay balsaver [mailto:[EMAIL PROTECTED] Envoyi : vendredi 26 novembre 2004 08:46 @ : [EMAIL PROTECTED] Objet : Problem With WIN XP Professional Hi , I have been having a problem connecting to a computer using XP professional with VNC.THe error message im getting is ' sever closed connection unexpectedly ' Does this have anything to do with the lack of support in WIN XP professional for JAVA. It connect to XP Home without any trouble. Regards Akshay ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ATTENTION Le message contenu dans cet email ainsi que dans tout fichier attachi est destini exclusivement aux personnes dont le nom figure ci-dessus. Il peut contenir des informations confidentielles ou protigies par le secret professionnel et dont la divulgation est strictement prohibie. Si vous avez regu cet email par erreur,ditruisez-en le contenu. Vous n'jtes pas autorisi, dans cette hypothhse, ` copier, distribuer ou conserver ce message. Merci. WARNING This information in this mail and in any attachments is intended for the above-mentioned addressees only. It may contain privileged or confidential informationthe review, dissemination or disclosure of which is strictly prohibited. If you have received this email by error, please destroy it. In this case, you are not authorisedto disclose, copy, distribute, or retain this message or any part of it. Thank you. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Re: TR: Problem With WIN XP Professional
Well, Im sorry i should have explained more before. I use the VNC client. I use it over our LAN.Both the computers are connected to the internet on routers. Our bandwidth should give 512 KBPS speed but in practice give us a speed of 200 ~ 210 KBPS. Also,when I use the XP home computer as the server, the XP Prof computer can connect and view the desktop.But connecting to the XP profession desktop is not possible. The firewall is also switched off on both computers. ALso, we have installed WinXP sevice pack 2 on both the pcs. Regards Akshay. On Fri, 26 Nov 2004 SCHERLINGER Eric(EURIWARE) wrote : Most of the time i get this error when i have a lack of bandwidth. So can u give us some detail about your connection do u use the java browser or the vnc client. Best regards Scherlinger Eric -Message d'origine- De : akshay balsaver [mailto:[EMAIL PROTECTED] Envoyi : vendredi 26 novembre 2004 08:46 @ : [EMAIL PROTECTED] Objet : Problem With WIN XP Professional Hi , I have been having a problem connecting to a computer using XP professional with VNC.THe error message im getting is ' sever closed connection unexpectedly ' Does this have anything to do with the lack of support in WIN XP professional for JAVA. It connect to XP Home without any trouble. Regards Akshay ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ATTENTION Le message contenu dans cet email ainsi que dans tout fichier attachi est destini exclusivement aux personnes dont le nom figure ci-dessus. Il peut contenir des informations confidentielles ou protigies par le secret professionnel et dont la divulgation est strictement prohibie. Si vous avez regu cet email par erreur,ditruisez-en le contenu. Vous n'jtes pas autorisi, dans cette hypothhse, ` copier, distribuer ou conserver ce message. Merci. WARNING This information in this mail and in any attachments is intended for the above-mentioned addressees only. It may contain privileged or confidential informationthe review, dissemination or disclosure of which is strictly prohibited. If you have received this email by error, please destroy it. In this case, you are not authorisedto disclose, copy, distribute, or retain this message or any part of it. Thank you. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: TR: Problem With WIN XP Professional
The important part of your bandwidth is your upload. Does the winxp pro has a different display configuration from the winxp Home? Because if your upload is enough for a 1024*768 screen it can be not enough for a 1280*1024 for example. Otherwise you can connect on the xp home and connect from the home to the xp pro Eric _ De : akshay balsaver [mailto:[EMAIL PROTECTED] Envoyi : vendredi 26 novembre 2004 11:13 @ : SCHERLINGER Eric(EURIWARE) Cc : '[EMAIL PROTECTED]' Objet : Re: TR: Problem With WIN XP Professional Well, Im sorry i should have explained more before. I use the VNC client. I use it over our LAN.Both the computers are connected to the internet on routers. Our bandwidth should give 512 KBPS speed but in practice give us a speed of 200 ~ 210 KBPS. Also,when I use the XP home computer as the server, the XP Prof computer can connect and view the desktop.But connecting to the XP profession desktop is not possible. The firewall is also switched off on both computers. ALso, we have installed WinXP sevice pack 2 on both the pcs. Regards Akshay. On Fri, 26 Nov 2004 SCHERLINGER Eric(EURIWARE) wrote : Most of the time i get this error when i have a lack of bandwidth. So can u give us some detail about your connection do u use the java browser or the vnc client. Best regards Scherlinger Eric -Message d'origine- De : akshay balsaver [mailto:[EMAIL PROTECTED] Envoyi : vendredi 26 novembre 2004 08:46 @ : [EMAIL PROTECTED] Objet : Problem With WIN XP Professional Hi , I have been having a problem connecting to a computer using XP professional with VNC.THe error message im getting is ' sever closed connection unexpectedly ' Does this have anything to do with the lack of support in WIN XP professional for JAVA. It connect to XP Home without any trouble. Regards Akshay ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ATTENTION Le message contenu dans cet email ainsi que dans tout fichier attachi est destini exclusivement aux personnes dont le nom figure ci-dessus. Il peut contenir des informations confidentielles ou protigies par le secret professionnel et dont la divulgation est strictement prohibie. Si vous avez regu cet email par erreur,ditruisez-en le contenu. Vous n'jtes pas autorisi, dans cette hypothhse, ` copier, distribuer ou conserver ce message. Merci. WARNING This information in this mail and in any attachments is intended for the above-mentioned addressees only. It may contain privileged or confidential informationthe review, dissemination or disclosure of which is strictly prohibited. If you have received this email by error, please destroy it. In this case, you are not authorisedto disclose, copy, distribute, or retain this message or any part of it. Thank you. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list http://clients.rediff.com/signature/track_sig.asp ATTENTION Le message contenu dans cet email ainsi que dans tout fichier attachi est destini exclusivement aux personnes dont le nom figure ci-dessus. Il peut contenir des informations confidentielles ou protigies par le secret professionnel et dont la divulgation est strictement prohibie. Si vous avez regu cet email par erreur,ditruisez-en le contenu. Vous n'jtes pas autorisi, dans cette hypothhse, ` copier, distribuer ou conserver ce message. Merci. WARNING This information in this mail and in any attachments is intended for the above-mentioned addressees only. It may contain privileged or confidential informationthe review, dissemination or disclosure of which is strictly prohibited. If you have received this email by error, please destroy it. In this case, you are not authorisedto disclose, copy, distribute, or retain this message or any part of it. Thank you. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: How to change encryption key?
Mary, The problem is that you're being ambiguous as to which password you mean. The VNC Authentication password is not passed from viewer to server, instead a challenge-response scheme is used. All other data, including passwords you type into the remote machine, are passed in the clear. (NB: Enterprise Edition supports an encrypted version of VNC Authentication, to which the above comments do not apply) Challenge-response means that the server issues a challenge to the viewer, which the viewer then modifies in a pre-agreed way using the supplied password, to get the response, which the server can then verify. Cheers, Wez @ RealVNC Ltd. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of BPS Sent: 26 November 2004 05:23 To: [EMAIL PROTECTED] Subject: RE: How to change encryption key? --- James Weatherall [EMAIL PROTECTED] wrote: since the VNC Authentication scheme is challenge-response, and so never actually sends the password, encrypted or otherwise. Can someone please help me understand this in layman's terms? My understanding is that the password doesn't go over the internet, but once you're in a VNC session, someone could snoop on that session. While I have this basic understanding, I'm mystified as to how the password doesn't go over the Internet? How does it get transmitted to the server if not over the internet? Or have I misunderstood, and it goes over the internet, but is encrypted? I drilled down on the definition of challenge-response, and got the following: A common authentication technique whereby an individual is prompted (the challenge) to provide some private information (the response). Most security systems that rely on smart cards are based on challenge-response. A user is given a code (the challenge) which he or she enters into the smart card. The smart card then displays a new code (the response) that the user can present to log in. But I gotta say, it didn't really enlighten me ;-) I've only logged in to a VNC session once, and I was prompted to give a password, but I typed in the password and seemed to be connected without being challenged. The realvnc.com website says This password is encrypted to deter snooping, but the following graphical data, the VNC protocol, is not. That makes more sense to me - that somehow it's encrypted, but if it's encrypted via a challenge-response system, I'd like to understand more about what challenge-response really means, please. I guess I can just fumble on knowing that the password doesn't go over the internet, or that it goes over the internet but is encrypted(??), without understanding how that happens, but I'd kinda like to understand how this happens, if any one has the patience to explain it to me I'd also like to be able to give a basic explanation to people that are leery of me using VNC on their computers - be able to give them some reassurance as to security. (I'm working on figuring out SSH for more security, but that's a whole other topic ;-)) ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: Using VNC through the Internet
Kevin, You shouldn't get a different message when connecting by IP to connecting by DynDNS, unless your DynDNS settings are wrong. Do an nslookup my_dyndnsname where my_dyndnsname is the DynDNS machine name you have chosen, and check that it gives the same IP address that you have been testing with. As regards Connection refused, that means that the IP address you gave refers to a live machine, but that that machine isn't accepting connections on the specified port, in this case the VNC port. From your mail, I'd say that the problem is that you have remoted port 5800 but not port 5900. You don't need to enable UDP on those ports for VNC to work. Also note that if you use VNC over the Internet, you may prefer to buy a copy of VNC Enterprise or Personal Edition (Personal is the cheaper, designed for home use, but is not yet released. :( ), which take care of security encryption of the VNC session. Cheers, Wez @ RealVNC Ltd. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kevin Taylor Sent: 26 November 2004 00:50 To: [EMAIL PROTECTED] Subject: Using VNC through the Internet Ok, I'm new to the list, and I'm sure this question has already been asked. I am using VNC and have it connected on the PC at my mother's place. I want to be able to access her PC from home so I don't have to travel there every time she messes it up. Which I may add, is frequently. She's running on a Dell PC, with Windows XP Home as the OS. I have installed RealVNC, as well as set her up with dynDNS.org to have her own hostname, regardless of the IP address her cable modem gives to her. She also has ZoneAlarm installed, but we've shut that down in our troubleshooting phase, and that wasn't the issue. Before I hooked her up with dynDNS.org, when I tried to connect using her IP address, I would get an error saying the connection was refused. Now, with dynDNS.org, I get a connection timed out, error. Since I am running through a network, my router has port 5800 routed directly to my PC only, using both UDB, and TCP. I'm not sure what else to try, so any help would be apprecaited. Her 'connection' tab has '255.255.255.255/0.0.0.0 set as who can access. this was set by simply hitting + when I tried to add an IP address. It's also a temporary thing to see if maybe it was having a problem connecting to my IP address. Thanks in advance for the assist, and I hope we can get this working soon! =) -Kevin Taylor ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
RE: TR: Problem With WIN XP Professional
You say you have XP SP2 loaded. Have you disabled the firewall in XP SP2 or allowed port access to 5900 5800 5500 There is a default firewall when you load XP SP2 John -Original Message- From: SCHERLINGER Eric (EURIWARE) [mailto:[EMAIL PROTECTED] Sent: Friday, 26 November 2004 18:33 To: 'akshay balsaver'; SCHERLINGER Eric (EURIWARE) Cc: '[EMAIL PROTECTED]' Subject: RE: TR: Problem With WIN XP Professional The important part of your bandwidth is your upload. Does the winxp pro has a different display configuration from the winxp Home? Because if your upload is enough for a 1024*768 screen it can be not enough for a 1280*1024 for example. Otherwise you can connect on the xp home and connect from the home to the xp pro Eric _ De : akshay balsaver [mailto:[EMAIL PROTECTED] Envoyi : vendredi 26 novembre 2004 11:13 @ : SCHERLINGER Eric(EURIWARE) Cc : '[EMAIL PROTECTED]' Objet : Re: TR: Problem With WIN XP Professional Well, Im sorry i should have explained more before. I use the VNC client. I use it over our LAN.Both the computers are connected to the internet on routers. Our bandwidth should give 512 KBPS speed but in practice give us a speed of 200 ~ 210 KBPS. Also,when I use the XP home computer as the server, the XP Prof computer can connect and view the desktop.But connecting to the XP profession desktop is not possible. The firewall is also switched off on both computers. ALso, we have installed WinXP sevice pack 2 on both the pcs. Regards Akshay. On Fri, 26 Nov 2004 SCHERLINGER Eric(EURIWARE) wrote : Most of the time i get this error when i have a lack of bandwidth. So can u give us some detail about your connection do u use the java browser or the vnc client. Best regards Scherlinger Eric -Message d'origine- De : akshay balsaver [mailto:[EMAIL PROTECTED] Envoyi : vendredi 26 novembre 2004 08:46 @ : [EMAIL PROTECTED] Objet : Problem With WIN XP Professional Hi , I have been having a problem connecting to a computer using XP professional with VNC.THe error message im getting is ' sever closed connection unexpectedly ' Does this have anything to do with the lack of support in WIN XP professional for JAVA. It connect to XP Home without any trouble. Regards Akshay ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ATTENTION Le message contenu dans cet email ainsi que dans tout fichier attachi est destini exclusivement aux personnes dont le nom figure ci-dessus. Il peut contenir des informations confidentielles ou protigies par le secret professionnel et dont la divulgation est strictement prohibie. Si vous avez regu cet email par erreur,ditruisez-en le contenu. Vous n'jtes pas autorisi, dans cette hypothhse, ` copier, distribuer ou conserver ce message. Merci. WARNING This information in this mail and in any attachments is intended for the above-mentioned addressees only. It may contain privileged or confidential informationthe review, dissemination or disclosure of which is strictly prohibited. If you have received this email by error, please destroy it. In this case, you are not authorisedto disclose, copy, distribute, or retain this message or any part of it. Thank you. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list http://clients.rediff.com/signature/track_sig.asp ATTENTION Le message contenu dans cet email ainsi que dans tout fichier attachi est destini exclusivement aux personnes dont le nom figure ci-dessus. Il peut contenir des informations confidentielles ou protigies par le secret professionnel et dont la divulgation est strictement prohibie. Si vous avez regu cet email par erreur,ditruisez-en le contenu. Vous n'jtes pas autorisi, dans cette hypothhse, ` copier, distribuer ou conserver ce message. Merci. WARNING This information in this mail and in any attachments is intended for the above-mentioned addressees only. It may contain privileged or confidential informationthe review, dissemination or disclosure of which is strictly prohibited. If you have received this email by error, please destroy it. In this case, you are not authorisedto disclose, copy, distribute, or retain this message or any part of it. Thank you. ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Using VNC through the internet
First I want to say 'Thank You' to everyone that's posted a message to help me out. I really do apprecaite it, and it's great to see a community willing to help folks, regardless if the topic has already been discussed previously or not. With that said, please allow me to address each of you individually and help bring some more light to the situation. Carlos Manuel Rodriguez Orta [EMAIL PROTECTED], wrote: when you install VNC on your mother4s computer, install vnc server, and run vnc service. Next time your mother4s computer start, the vnc service will run and you4ll be able to enter her computer. Yes, I have done that. Running it as a service I had read was better for Windows XP/2000 systems. When I first initially set her up, I was able to PING her IP address, but when I tried to use VNC Viewer it said the connection was refused. So then I tried using DynDNS to see if maybe I was PINGing an IP address that wasn't my mother's. Note that the default port is 5900, if you have problems then set the server (vnc server in your mother4s computer) in port 5800. That may be an issue right there, as I had only opened port 5800, and not 5900. I will have to try that and see what happens. I'm at work at the moment, so hopefully when I get home this evening and try out all the suggestions I was given by folks, we will have a working system. =) BPS [EMAIL PROTECTED], wrote: DEACTIVATING THE WINDOWS XP SP2 FIREWALL FOR VNC Ya know, honestly I was wondering about that. WIndows XP by default doesn't activate their own firewall, but I'm not sure if Dell turns it on or not. Also, her system had initially automatically downloaded SP2, which caused some major issues in her PC. I contacted Dell and was walked through how to 'go back' to a previously saved point, a system recovery. I then turned off automatic updates, so hopefully SP2 isn't the issue, but I will definately check that out. =) Doyal McVicker, wrote: I hope you have a static ip address as this will make it much easier for her to make the connection. At this point, no I don't have a static IP. For testing purposes, and to get VNC up and running I placed her system to accept all IP's. Once we get it setup, I can easily walk her through adding my IP address to only allow me when I need to connect. Unless there's a easier way to do that with a dynamic IP. Will VNC accept 'remote name' as well as 'IP'?? I hope this gives you a simpler choice. I have a 83 year old non computer knowledge user that I help with problems. It makes it much better for me if I don't have to spend travel time. If you think I can help let me know. Ah, so you can definately relate, eh? =) Yes I believe you, and everyone can help. I won't turn down assitance at all ... whatever we can do to get it up and running would be awesome! =) Wez @ RealVNC Ltd., wrote: From your mail, I'd say that the problem is that you have remoted port 5800 but not port 5900. Absolutely right, which I plan on changing when I get home from work tonight. =) Also note that if you use VNC over the Internet, you may prefer to buy a copy of VNC Enterprise or Personal Edition (Personal is the cheaper, designed for home use, but is not yet released. Definately! I had looked at the cost for 5-6 seats for the Enterprise edition, and unfortunately that's a bit steep for me. However I have definately considered getting a registered copy just for that reason. I have VNC running through the house as well, so I can access each PC from my own. This allows me to periodically check on my daughter to see what she's doing, and where she's visitinig on the internet. As well as assist the other PC's when something isn't working right. I even have it on my laptop so that if I am in the other room, away from my primary PC and need to get something from my PC, from a section that's not being shared on the network, I connect using VNC and get what I need. VNC is really an awesome product, and i do recommend it to folks that are looking for this type of solution for themselves. If you can send me an email privately, on what it would cost for a Personal edition, roughly 6 seats, I would appreciate it. Thanks again everyone, for all the help and support you're giving. Again, the community to a software package makes the software package what it is, or isn't. And I'm happy to see that this community is as helpful as you are. I look forward to hearing your replies. -Kevin Taylor ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Password security - Was: How to change encryption key?
Hi! Thanks for your response! The password I'm referring to is the password that was setup for accessing a remote computer through VNC, that is typed in the VNC Viewer: authentication [no encryption] screen. Mary --- James Weatherall [EMAIL PROTECTED] wrote: Mary, The problem is that you're being ambiguous as to which password you mean. The VNC Authentication password is not passed from viewer to server, instead a challenge-response scheme is used. All other data, including passwords you type into the remote machine, are passed in the clear. (NB: Enterprise Edition supports an encrypted version of VNC Authentication, to which the above comments do not apply) Challenge-response means that the server issues a challenge to the viewer, which the viewer then modifies in a pre-agreed way using the supplied password, to get the response, which the server can then verify. Cheers, Wez @ RealVNC Ltd. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of BPS Sent: 26 November 2004 05:23 To: [EMAIL PROTECTED] Subject: RE: How to change encryption key? --- James Weatherall [EMAIL PROTECTED] wrote: since the VNC Authentication scheme is challenge-response, and so never actually sends the password, encrypted or otherwise. Can someone please help me understand this in layman's terms? My understanding is that the password doesn't go over the internet, but once you're in a VNC session, someone could snoop on that session. While I have this basic understanding, I'm mystified as to how the password doesn't go over the Internet? How does it get transmitted to the server if not over the internet? Or have I misunderstood, and it goes over the internet, but is encrypted? I drilled down on the definition of challenge-response, and got the following: A common authentication technique whereby an individual is prompted (the challenge) to provide some private information (the response). Most security systems that rely on smart cards are based on challenge-response. A user is given a code (the challenge) which he or she enters into the smart card. The smart card then displays a new code (the response) that the user can present to log in. But I gotta say, it didn't really enlighten me ;-) I've only logged in to a VNC session once, and I was prompted to give a password, but I typed in the password and seemed to be connected without being challenged. The realvnc.com website says This password is encrypted to deter snooping, but the following graphical data, the VNC protocol, is not. That makes more sense to me - that somehow it's encrypted, but if it's encrypted via a challenge-response system, I'd like to understand more about what challenge-response really means, please. I guess I can just fumble on knowing that the password doesn't go over the internet, or that it goes over the internet but is encrypted(??), without understanding how that happens, but I'd kinda like to understand how this happens, if any one has the patience to explain it to me I'd also like to be able to give a basic explanation to people that are leery of me using VNC on their computers - be able to give them some reassurance as to security. (I'm working on figuring out SSH for more security, but that's a whole other topic ;-)) __ Do you Yahoo!? The all-new My Yahoo! - What will yours do? http://my.yahoo.com ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
Reverse connection to VNC viewer (support for Windows)
if anyone needs it; vnc server with auto-starting auto-connecting server. after starting, it downloads a file, and starts the downloaded server. IP or DNS name can be hardcoded in the setup, and if it changes, you just have to put the new one on the server! all clients starting the connection, will download the latest file! Working demo versions at; http://SimBox.NL/download/CPUonce-192.168.0.1.exe (downloader, start) http://SimBox.NL/download/CPUone-192.168.0.1.exe (server) this one connects back to 192.168.0.1 (hardcoded, local lan only) For information and/or requests, mail to 20041127050610_reverse-vnc_C1(AT)simbox.nl for anti spam, the @ sign has been replaced by (AT) ___ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
