x11vnc 0.9.2

x11vnc allows one to remotely view and interact with real X displays (i.e. a display corresponding to a physical monitor, keyboard, and mouse) with any VNC viewer. In this way x11vnc plays the role for Unix/X11 that WinVNC plays for Windows.
I wrote x11vnc because x0rfbserver was basically impossible to build on Solaris and had poor performance. The primary x0rfbserver build problems centered around esoteric C++ toolkits. x11vnc is written in plain C and uses only standard libraries. I also added a few enhancements to improve the interactive response, add esoteric features, etc.
For Unix, the VNC implementation includes a virtual X11 server Xvnc (usually launched via the vncserver command) that is not associated with a physical display, but provides a "fake" one X11 clients (xterm, mozilla, etc.) can attach to. A remote user then connects to Xvnc via the VNC client vncviewer from anywhere on the network to view and interact with the whole virtual X11 desktop.
The VNC protocol is in most cases better suited for remote connections with low bandwidth and high latency than is the X11 protocol (the exception is cached pixmap data on the viewing-end). Also, with no state maintained the viewing-end can crash, be rebooted, or relocated and the applications and desktop continue running. Not so with X11.
Enhancements:
- A compile-time bug is fixed for when the OpenSSL library is not available or --without-ssl is supplied; previously the build would fail.
- One can configure x11vnc via "configure --with-system-libvncserver" to use a system installed libvncserver library instead of the one bundled in the release tarball.
- If UltraVNC file transfer or chat is detected, then VNC clients are "pinged" more often to prevent these side channels from becoming serviced too infrequently.
- In -unixpw mode in the username and password dialog no text will be echoed if the first character sent is "Escape". This enables a convenience feature in SSVNC to send the username and password automatically.
Miscellaneous new features and changes:
- When building from the CVS tree --with-x11vnc must be supplied if you want x11vnc to be built. The LibVNCServer release tarball no longer contains the x11vnc source.