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Appendix 3 Cybersecurity Recommendations 

Cybersecurity is more than just a buzzword: it’s something that pertains to every device that is 
connected to the internet. IP video surveillance is not immune to cyber risks, but taking basic steps 
toward protecting and strengthening networks and networked appliances will make them less 
susceptible to attacks. Below are some tips and recommendations from Dahua on how to create a 
more secured security system. 

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:

 

1. 

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. 

2. 

Change Passwords Regularly

 

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

3. 

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. 

4. 

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. 

5. 

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. 

Summary of Contents for D-PFS4226-24GT-230

Page 1: ...L3 Managed PoE Switch Quick Start Guide V1 0 0...

Page 2: ...te number You need to be in compliance with your local privacy protection laws and regulations to protect the legitimate rights and interests of other people by implementing measures which include but...

Page 3: ...eader software or try other mainstream reader software if the manual in PDF format cannot be opened All trademarks registered trademarks and company names in the manual are properties of their respect...

Page 4: ...d place and do not block its ventilation Use an adapter or chassis power supply from the manufacturer Do not connect the device to two or more kinds of power supplies to avoid damage to the device The...

Page 5: ...power input and output Make sure that the power supply is correct before running the device When removing the cable device first to avoid personal injury Do not unplug the power cord on the side of th...

Page 6: ...I 1 Device Installation 1 1 1 Installation Notes 1 1 2 Installation Tools 1 1 3 Mounting Methods 1 1 3 1 Rack Mount 1 1 3 2 Desktop Mount 2 1 4 Installation 2 2 Port Description 4 Appendix 1 FAQ 6 App...

Page 7: ...crub the switch with any liquid Clean only with dry cloth Position the switch away from power line electric lamp or power system Do not place any heavy things on this switch If outdoor cabling is requ...

Page 8: ...1 3 Mount the switch 1 3 2 Desktop Mount Paste the four footpad stickers to the corresponding four recesses on the bottom of the switch Place the switch up on a clean stable and flat desktop Figure 1...

Page 9: ...r side of the grounding cable to the grounding terminal of other grounded devices or a grounding bar Figure 1 6 Connect the grounding cable 2 Connect the grounding cable to the grounding system in the...

Page 10: ...on PoE Max Solid on The total output power of the switch reaches the maximum value Off The total output power of the switch does not reach the maximum value SYS Flashing The system works properly Soli...

Page 11: ...g PoE power to a device properly Off The corresponding port does not supply PoE power Link Act Solid on The corresponding port is connected but no data is being transmitted over the port Flashing Data...

Page 12: ...dicator is solid on and the SYS Indicator is flashing press and hold the LED Mode button for about10 seconds and release it when all Indicators light up The switch is restored to factory settings when...

Page 13: ...r system malfunctions You can determine whether the power system malfunctions by observing the power indicator on the front panel of the switch When the power system works properly the power indicator...

Page 14: ...switch 370 W Dimensions L x W x H 440 mm 284 mm 44 mm Input power 100 240 VAC 50 60 Hz 6 A Lightning protection RJ45 port Common mode 6 kV Power Common mode 6 kV Differential mode 4 kV Operating envi...

Page 15: ...turer We suggest that you download and use the latest version of client software Nice to have recommendations to improve your device network security 1 Physical Protection We suggest that you perform...

Page 16: ...inder encrypted transmission will cause some loss in transmission efficiency 11 Secure Auditing Check online users we suggest that you check online users regularly to see if the device is logged in wi...

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