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Appendix 1 Cybersecurity Recommendations 

Mandatory actions to be taken for basic device network security: 

1.

 

Use Strong Passwords 

Please refer to the following suggestions to set passwords: 

 

The length should not be less than 8 characters. 

 

Include at least two types of characters; character types include upper and lower case 
letters, numbers and symbols. 

 

Do not contain the account name or the account name in reverse order. 

 

Do not use continuous characters, such as 123, abc, etc. 

 

Do not use overlapped characters, such as 111, aaa, etc. 

2.

 

Update Firmware and Client Software in Time 

 

According to the standard procedure in Tech-industry, we recommend to keep your device 
(such as NVR, DVR, IP camera, etc.) firmware up-to-date to ensure the system is equipped 
with the latest security patches and fixes. When the device is connected to the public 
network, it is recommended to enable the “auto-check for updates” function to obtain 
timely information of firmware updates released by the manufacturer. 

 

We suggest that you download and use the latest version of client software. 

"Nice to have" recommendations to improve your device network security: 

2.

 

Physical Protection 

We suggest that you perform physical protection to device, especially storage devices. For 
example, place the device in a special computer room and cabinet, and implement well-done 
access control permission and key management to prevent unauthorized personnel from 
carrying out physical contacts such as damaging hardware, unauthorized connection of 
removable device (such as USB flash disk, serial port), etc. 

3.

 

Change Passwords Regularly 

We suggest that you change passwords regularly to reduce the risk of being guessed or cracked. 

4.

 

Set and Update Passwords Reset Information Timely 

The device supports password reset function. Please set up related information for password 
reset in time, including the end user’s mailbox and password protection questions. If the 
information changes, please modify it in time. When setting password protection questions, it is 
suggested not to use those that can be easily guessed. 

5.

 

Enable Account Lock 

The account lock feature is enabled by default, and we recommend you to keep it on to 
guarantee the account security. If an attacker attempts to log in with the wrong password 
several times, the corresponding account and the source IP address will be locked. 

6.

 

Change Default HTTP and Other Service Ports 

We suggest you to change default HTTP and other service ports into any set of numbers 
between 1024–65535, reducing the risk of outsiders being able to guess which ports you are 
using. 

7.

 

Enable HTTPS 

We suggest you to enable HTTPS, so that you visit Web service through a secure communication 
channel. 

Summary of Contents for 28DH-PFS4218-16ET-190-V3

Page 1: ...PoE Switch 16 24 port Managed Desktop Switch Quick Start Guide V1 0 1...

Page 2: ...We are not liable for losses incurred due to operating the product in ways that are not in compliance with the manual The manual will be updated according to the latest laws and regulations of related...

Page 3: ...II using the device If there is any uncertainty or controversy we reserve the right of final explanation...

Page 4: ...ctrical safety standards and make sure that the voltage in the area is steady and conforms to the power requirements of the device Do not connect the device to more than one power supply Otherwise the...

Page 5: ...ames such as a lit candle on the device When installing the device make sure the power plug and appliance coupler are easy to reach to cut off the power Maintenance Requirements Power off the device b...

Page 6: ...2 2 1 Front Panel 2 2 2 Rear Panel 3 3 Installation 4 4 Wiring 5 4 1 Connecting GND 5 4 2 Connecting Power Cord 5 4 3 Connecting Ethernet Port 5 4 4 Connecting SFP Ethernet Port 6 4 5 Connecting PoE E...

Page 7: ...evice is applicable for use in different scenarios including homes offices small malls and on server farms 1 2 Features 16 24 100 Mbps PoE Ethernet ports uplink ports support gigabit optical ports or...

Page 8: ...tton Press and hold it for more than 5 seconds and release after the panel status indicators all turn on to restore the device to its default settings 4 Console port 5 PoE output power indicators Soli...

Page 9: ...ollowing figure is for reference only and might differ from the actual device Figure 2 2 Rear Panel Table 2 2 Description of the rear panel No Description 1 Power switch 2 Power port supports 100 240...

Page 10: ...k mount Step 1 Attach the mounting bracket to the Device side panel one on each side and secure it with the screws provided with the rack Figure 3 1 Install bracket Step 2 Attach the Device to the rac...

Page 11: ...1 Connect GND 4 2 Connecting Power Cord Before connecting the power cord make sure that the Device is securely grounded Step 1 Connect one end of the power cord to the power jack of the Device Step 2...

Page 12: ...tatic wrist band and confirm that the antistatic wrist band is in good contact with your skin and the Device is reliably grounded Step 2 Turn up the handle of the SFP optical module vertically and hol...

Page 13: ...an directly connect this port to the Device PoE Ethernet port through the network cable to achieve synchronized network connection and power supply The maximum distance between the Device and the term...

Page 14: ...Web No initial password user defined during initialization iLinksView lt_91_il_02_nmp When using iLinksView for device management ensure that the username and password of the Device matches that of iL...

Page 15: ...xample place the device in a special computer room and cabinet and implement well done access control permission and key management to prevent unauthorized personnel from carrying out physical contact...

Page 16: ...smission efficiency 12 Secure Auditing Check online users we suggest that you check online users regularly to see if the device is logged in without authorization Check device log By viewing the logs...

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