Hi leonchik1976,
If you are using tigervnc normally, when it starts it will run the script ~/.vnc/xstartup for each enabled vnc user. So whatever command is used to start Gnome can be put there. You can put more than one command here if there is any preliminary stuff you want to do, but note you must put "&" after each command and also "exec" before the last command in the file.
As for what command to use, there is probably a command like "startgnome" as there are similar for KDE and Fluxbox etc. Alternatively (and maybe better because it does more stuff), there should be an X-session startup script for Gnome in the folder /etc/X11/Sessions/ so you could use that instead. So an example contents for ~/.vnc/xstartup could be:
Code: Select all
exec /etc/X11/Sessions/gnome &
# Note: I don't use Gnome so I'm only guessing the script's name
If there is anything different to your tigervnc setup, give us details and we can advise what's best for you.