Security; Modbus Tcp; Dos Attack; Install Web Server Certificate In Google Chrome - Honeywell Midas S2 User Manual

6.9 Security

Midas S2 is shipped from the factory with security disabled. It is recommended to enable the
security function for safe use of the device. If the security function is enabled, the web server
can be accessed through HTTPS. And it is recommended to clear the browser cache to access
the web server through HTTP after security is disabled.

6.9.1 Modbus TCP

The MODBUS protocol does not have any authentication and integrity checking function. So
the bump-in-the wire solution is recommended using a network equipment with SSL VPN
Firewall function to protect the Midas S2 from external attacks.

6.9.2 DOS attack

The web application may not work due to DoS attacks. The Midas device is even needed to
restart for the web application to work properly. So the bump-in-the wire solution is
recommended using a network firewall hardware solution that can detect and block DoS
attacks.

6.9.3 Install web server certificate in Google Chrome

How to install a web sever certificate in a Chrome web browser, when the security function is
enabled.
1. Open Chrome browser window and type https://xxx.xxx.xxx.xxx (device address) as the URL,
and then press ENTER to connect to the device. A "
message is displayed.
2. Click Certificate to download the certificate and follow onscreen instructions.
3. On the Chrome main page, click the three dots (Advanced) button and select Settings >
Manage certificates and then follow onscreen instructions as follows to set the certificate.
4. Close and re-open the Chrome Web browser, and then access to your device's address
https://xxx.xxx.xxx.xxx . A "
should be reinstalled when the IP address is changed

6.9.4 Install web server certificate in MS Browsers

How to install a web sever certificate in Microsoft Edge, when the security function is enabled.
1. Open browser window and access https://xxx.xxx.xxx.xxx (device address) in your browser.
Click "
Certificate error
2. Click Export to File and then save the certificate in your PC or device.
3. On your computer locate and run Certificate Manager certmgr.msc
4. On the Certificate Manager window, expand Trusted Root Certification Authorities and right
click on Certificates. Select All tasks > Import...
5. Follow the Certificate Import Wizard onscreen instructions.
NOTE: The certificate should be reinstalled when the IP address is changed
Midas S2
Connection is secure
" text. The Certificate Information window is displayed.
58
Connection to this site is not secure
" message is displayed. The certificate
"
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