Re: The moving of VNC port from 580n to 590n

[John R Pierce <pierce@xxxxxxxxxxxx>]

On 2/3/2013 1:42 PM, Cliff Pratt wrote:
> There's a lot of conflicting information on this topic on the
> Internet. Most current VNC servers seem to listen on port 590n. I've
> seen it claimed that a) port 580n is not used and can be blocked, b)
> 580n is used for the Java VNC client, c) 580n is used for browser
> requests for VNC (probably via the Java VNC client, I'd guess).
>
> I don't know when the change occurred and it may be that it happened
> when RH changed from one VNC brand to another.

traditional Windows VNC always used 590x for client->server 
connections.    580x was used for 'browser' requests to serve up a java 
VNC client that would then use 590x, and some VNC's also use 580x for 
file transfers.   there's also port 550x used by some configurations for 
a 'callback' sort of connection.



-- 
john r pierce                                      37N 122W
somewhere on the middle of the left coast

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