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How difficult would this be?called Nat2Nat that you can hook up to to get thru firewalls without having to set up ports and such. Problem is that thier Nat2Nat is not exactly reliable and they ignore any questions about its source code. It looks like they are simply starting a UDP connection from each client/server VNC combo to the Nat2Nat server and handing off the UDP connection once established. That would be fine except some office firewalls do not allow UDP connections. I'd like to build a packet relay server that would work over HTTP or SOCKS proxies. It should accept incoming connections with a GUID and friendly name from the "servers" and allow a "client" to connect to a server while relaying the packets between them. This is relatively easy to do for a normal TCP connection, but what is involved in getting thru HTTP and SOCKS proxies? I am using VB.Net 2005 so any code examples in .Net 2005 would also be helpful. Any help you could provide would be greatly appreciated. Thanks! Hi smerf,
A bit off topic but .... I find UltraVNC SC (single-click) very useful for the situation described. The client makes the connection directly from their desktop to yours via TCP. If they have internet access then usually that's enough. http://sc.uvnc.com/index.php?section=19 Paul Show quoteHide quote "smerf" <sm***@shroom.com> wrote in message news:UirIg.26674$j8.25189@bignews7.bellsouth.net... >I like UltraVNC for helping remote users, and the authors have a server >called Nat2Nat that you can hook up to to get thru firewalls without having >to set up ports and such. > > Problem is that thier Nat2Nat is not exactly reliable and they ignore any > questions about its source code. > > It looks like they are simply starting a UDP connection from each > client/server VNC combo to the Nat2Nat server and handing off the UDP > connection once established. > > That would be fine except some office firewalls do not allow UDP > connections. > > I'd like to build a packet relay server that would work over HTTP or SOCKS > proxies. It should accept incoming connections with a GUID and friendly > name from the "servers" and allow a "client" to connect to a server while > relaying the packets between them. > > This is relatively easy to do for a normal TCP connection, but what is > involved in getting thru HTTP and SOCKS proxies? > > I am using VB.Net 2005 so any code examples in .Net 2005 would also be > helpful. > > Any help you could provide would be greatly appreciated. Thanks! > I also use uvnc SC. It's great for 1st contact.
But, I also need access after hours - when nobody is in the office. I try and work when they are not there whenever possible to lessen the impact on thier work days. I guess I could write an app that queries a web service and connects to me using SC whenever I needed it to......but.....the project would be useful for things other than VNC - like a company-specific IM client or P2P app that keeps files synchronized between PCs. So, although VNC is a big part of why I need this - it is not the only reason. Thanks for your post! Show quoteHide quote "PGC" <Paul.Rem***@Remove.Aten.ie.UCELess> wrote in message news:OM1atJoyGHA.1304@TK2MSFTNGP05.phx.gbl... > Hi smerf, > > A bit off topic but .... > > I find UltraVNC SC (single-click) very useful for the situation described. > The client > makes the connection directly from their desktop to yours via TCP. If they > have > internet access then usually that's enough. > http://sc.uvnc.com/index.php?section=19 > > Paul > > "smerf" <sm***@shroom.com> wrote in message > news:UirIg.26674$j8.25189@bignews7.bellsouth.net... >>I like UltraVNC for helping remote users, and the authors have a server >>called Nat2Nat that you can hook up to to get thru firewalls without >>having to set up ports and such. >> >> Problem is that thier Nat2Nat is not exactly reliable and they ignore any >> questions about its source code. >> >> It looks like they are simply starting a UDP connection from each >> client/server VNC combo to the Nat2Nat server and handing off the UDP >> connection once established. >> >> That would be fine except some office firewalls do not allow UDP >> connections. >> >> I'd like to build a packet relay server that would work over HTTP or >> SOCKS proxies. It should accept incoming connections with a GUID and >> friendly name from the "servers" and allow a "client" to connect to a >> server while relaying the packets between them. >> >> This is relatively easy to do for a normal TCP connection, but what is >> involved in getting thru HTTP and SOCKS proxies? >> >> I am using VB.Net 2005 so any code examples in .Net 2005 would also be >> helpful. >> >> Any help you could provide would be greatly appreciated. Thanks! >> > >
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"smerf" <sm***@shroom.com> wrote in message Many people tunnel VNC connections over SSH since VNC traffic by itself is news:UirIg.26674$j8.25189@bignews7.bellsouth.net... >I like UltraVNC for helping remote users, and the authors have a server called >Nat2Nat that you can hook up to to get thru firewalls without having to set up >ports and such. > > Problem is that thier Nat2Nat is not exactly reliable and they ignore any > questions about its source code. > > It looks like they are simply starting a UDP connection from each > client/server VNC combo to the Nat2Nat server and handing off the UDP > connection once established. > > That would be fine except some office firewalls do not allow UDP connections. > > I'd like to build a packet relay server that would work over HTTP or SOCKS > proxies. It should accept incoming connections with a GUID and friendly name > from the "servers" and allow a "client" to connect to a server while relaying > the packets between them. > > This is relatively easy to do for a normal TCP connection, but what is > involved in getting thru HTTP and SOCKS proxies? > > I am using VB.Net 2005 so any code examples in .Net 2005 would also be > helpful. > > Any help you could provide would be greatly appreciated. Thanks! unencrypted. I believe you can also specify a proxy server in the SSH client when you do this. Ahhhh! A proxy server! That's another thing I'd like to know how to do in
VB.Net or even in old VB6. I have a cool idea for a business internet filter that could use a proxy server - but I am lost when it comes to coding one of those too. Thx for the post! Show quoteHide quote "Mike Lowery" <selfspam@mouse-potato.com> wrote in message news:Ozd4$csyGHA.1936@TK2MSFTNGP04.phx.gbl... > > "smerf" <sm***@shroom.com> wrote in message > news:UirIg.26674$j8.25189@bignews7.bellsouth.net... >>I like UltraVNC for helping remote users, and the authors have a server >>called Nat2Nat that you can hook up to to get thru firewalls without >>having to set up ports and such. >> >> Problem is that thier Nat2Nat is not exactly reliable and they ignore any >> questions about its source code. >> >> It looks like they are simply starting a UDP connection from each >> client/server VNC combo to the Nat2Nat server and handing off the UDP >> connection once established. >> >> That would be fine except some office firewalls do not allow UDP >> connections. >> >> I'd like to build a packet relay server that would work over HTTP or >> SOCKS proxies. It should accept incoming connections with a GUID and >> friendly name from the "servers" and allow a "client" to connect to a >> server while relaying the packets between them. >> >> This is relatively easy to do for a normal TCP connection, but what is >> involved in getting thru HTTP and SOCKS proxies? >> >> I am using VB.Net 2005 so any code examples in .Net 2005 would also be >> helpful. >> >> Any help you could provide would be greatly appreciated. Thanks! > > Many people tunnel VNC connections over SSH since VNC traffic by itself is > unencrypted. I believe you can also specify a proxy server in the SSH > client when you do this. > > > 
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