User guide

Chapter 1: Security Risks
1-18
Periodic Backup
If you backup information periodically, you can restore the environment even if the information is
tampered with. Periodic backup is an effective defense against the following threats:
• Tampering of information
• Damage to data
• Damage to file
There are two procedures for periodic backup:
• Data Backup
• Data Restoration
Data Backup
Use the 'otsbackupsys' command to perform periodic backups. By executing this command periodically,
you can save information before damage is done on a resource to be protected. For more information
about this command, refer to the Reference Manual (Command Edition).
Data Restoration
Restore the data when tampering or damage is detected in a resource to be protected. Use the
'otsrestoresys' command for restoration of data. Specify the desired file that is backed up, and restore it.
For more information about this command, refer to the Reference Manual (Command Edition).
Use of the Security Function Provided by the Resource
When a password is transmitted in an environment open to the public like the Internet, the password
may be read on the transmission path. You can minimize this risk by encrypting the password. The
database linkage service guarantees consistency of transactions using the publicly available interface of
each resource vendor.
• Decryption of passwords
For the details of the function, refer to the manual prepared by each resource vendor.