-via does not allow to specify a port

[ydirson]

xvnc4viewer has support for "-via gateway:port" and $P in VNC_VIA_CMD.
Lack of this functionnality is worked around by using VNC_VIA_CMD, but is a bit awkward to use :)

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[bphinz]

In case it helps, the TigerVNC Java viewer supports specifying both the SSH port and SSH username of the gateway host from both the command line ("-via user@host:port") and also from the GUI.

[SuperShinyEyes]

@bphinz What kind of command do you give on GUI?

In Linux server I start a session as:

# start a server at port 5901
vncserver -SecurityTypes=TLSPlain -PlainUsers=$USER -pam_service login -desktop $HOSTNAME

then on an Ubuntu client I use:

./vncviewer localhost:1 -via username@address

I tried but failed: