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1. Use the port range 20111-20210 (see Network settings utility, Ports used by the Axxon One Software Package). In versions 4.5.0 and later, recommended port range is selected by default. If you upgrade from versions 4.3 and older, change the port range during installation (Custom -> Server network settings) or after installation using the Network settings utility (see Configuring the Server ports).
2. Metadata database:
   
   1. The path to the metadata storage folder can be specified only once during the installation process. If you decide to change it later, you will have to re-install Axxon One (without losing your configuration or video archive).
   2. It is highly recommended to install it on SSD specifically designed for storing metadata.
      DO NOT install metadata on system drive because Metadata size tends to grow over time, and if the system drive space is not sufficient it might cause system issues.
      DO NOT install metadata on the drive to which the archive is recorded because it will affect recording performance.
   3. Consider the disk space required for the database (see Disk storage subsystem requirements). For example, ≈1.5 TB is required to store metadata for 30 days for 50 cameras.

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1. Create a new backup:
   1. After you complete the system configuration.
   2. Before you update to a new version.
   3. After you update to a new version.
   4. Periodically (recommended period is 1 month).

2. To restore the configuration, use the backup created on the same version of software (see Restoring a configuration). Example:  if if backup was created on v. 41.3 0 then restore it only on v. 4.3; if you also need to update to 4.5 then first restore it on 4.3 and then update to 4.51.0.

Web Client (see Working with Axxon One Through the Web-Client):

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