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Choosing a VNC Installation Mode
Visual and Interactive access to the system
If visual and interactive access to the system being installed is not available, then you should use Connect Mode.
Network Connection Rules and Firewalls
If the system being installed is not allowed inbound connections by a firewall, then you must use Connect Mode or disable the firewall. Disabling a firewall may have security implications.
If the remote system running the VNC viewer is not allowed incoming connections by a firewall, then you must use Direct Mode, or disable the firewall. Disabling a firewall may have security implications.
Installing in VNC Direct Mode
VNC Direct Mode is when the VNC viewer initiates a connection to the system being installed. [application]*Anaconda* will tell you when to initiate this connection.
Starting VNC in Direct Mode
Open the VNC viewer (for example, [application]*TigerVNC*) on the workstation you will be using to connect to the system being installed. A window similar to xref:VNC_Installations.adoc#figu-vnc-installations-connection-details[TigerVNC Connection Details] will be displayed with an input field allowing you to specify an IP address.
TigerVNC Connection Details
TigerVNC after startup
vnc/connection-details.png
Boot the installation system and wait for the boot menu to appear. In the menu, edit boot options (see xref:install/Booting_the_Installation.adoc#sect-boot-menu[The Boot Menu]) and append the [option]#inst.vnc# option to the end of the command line.
Optionally, if you want to restrict VNC access to the installation system, add the [option]#inst.vncpassword=pass:attributes[{blank}]_PASSWORD_pass:attributes[{blank}]# boot option as well. Replace _PASSWORD_ with the password you want to use for the installation. The VNC password must be between 6 and 8 characters long.
Use a temporary password for the [option]#inst.vncpassword=# option. It should not be a real or root password you use on any system.
Adding VNC Boot Options
Editing boot options to activate VNC
boot/vnc-options.png
Start the installation using the edited options. The system will initialize the installation program and start the necessary services. When the system is ready, you will see a message on the screen similar to the following: