OpenVZ is a server virtualization solution for Linux. Containers share the same architecture and kernel version as the host, allowing it to perform at near bare-metal speed. However, since it operates on a Linux-based system, there’s no actual Registry like in Windows OS.
Nonetheless, there are configuration files which can be managed and modified according to the requirements. Most of these configuration files are located in the /etc/vz/ directory, including the vz.conf main configuration file, and also individual CT configuration files in the /etc/vz/conf/ directory.
For specific operations or changes on these files, it would be necessary to have root access and use a text editor such as vi, nano or others. Always remember to follow good practice by backing up any configuration files before editing them.