System Security Tips

Strong password

Please set up STRONG passwords including the admin password, extension password, and trunk password. Setting up a strong password can effectively prevent a malicious attack. When the system is on a public IP address, it’s extremely prohibited to use a simple password such as 123, 123456, aabbcc

For example, in Telephony->Extensions->IP Extensions

Permitted IP

On the advanced setting of each extension of the system, there is a Permitted IP option available to the user. The Permitted IP defines which IP address or network address is allowed to register with that specific extension number. When specifying an IP address, registration from other IP addresses will be dropped, and help prevent malicious attacks from other IP sources.

For example, in Telephony->Extensions->IP Extensions

Close Unused System Services

When the system is running on the public network, closing unused or used system services can effetively increase system security. For example, the auto provisioning function must be closed immediately after the extension is configured, otherwise the hacker may able to download the extension’s configuration file through the service to obtain the extension registration password.

For example, Telephony->Extensions->Auto Provisioning

Firewall

A firewall is an essential part of the security system. It can prevent against destructive and disruptive forces, with a control over incoming and outgoing network traffic. For instance, when a system is on the Internet, their status can be visible through a port (or port service). The idea of a firewall is to close off the ports if they are not in use. Otherwise, a system that has open ports is a clear invitation for others to raid the system’s information.

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