IC Realtime 4/8 All Channel 720P Mini 1U HD-AVS DVR - Manual (Page 87)

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 For the user account name and the user group, the string max length is 6-byte. The backspace in
front of or at the back of the string is invalid. There can be backspace in the middle. The string
includes the valid character, letter, number, underline, subtraction sign, and dot.
 System account adopts two-level management: group and user. System max supports 20 user
groups and 64 users.
 For group or user management, there are two levels: admin and user.
 One user should belong to one group. User right can not exceed group right.
 About reusable function: this function allows multiple users use the same account to login.
 About user account and MAC. When you add a new user, you can input the MAC address of current
user. Only the user of the same MAC address can access the device remotely.(MAC address is for
the device of the same LAN.) If you leave MAC address item in blank when you add a new user, the
user of any MAC address can access the device remotely. You can set or change MAC address
when you add or modify a user. The MAC address function is also valid for PSS login. Please note
current function does not support IPV6.
After all the setups please click save button, system goes back to the previous menu.
Figure 5-57
5.5.4.1 Modify Password
Click password button, the interface is shown as in Figure 5-58.
Here you can modify account password.
Please select the account from the dropdown list, input the old password and then input the new
password twice. Click the Save button to confirm current modification.
For the users of user account right, it can modify password of other users.