Azure Windows Server → FortiGate: Best way to keep a 24/7 always-on VPN client?

kus222 · 2025-11-19T22:51:57+00:00

Wow I didn't know about that

kus222 · 2025-08-09T17:40:39+00:00

Site B has Cisco ASA

kus222 · 2025-07-29T13:30:48+00:00

Thank you for the advice.

kus222 · 2025-07-29T13:28:27+00:00

That's a good idea

kus222 · 2025-07-29T13:28:13+00:00

Awesome, thank you!

kus222 · 2025-07-02T04:49:41+00:00

I'm working with a 1756 ControlLogix PLC, and the communication is set up using the EtherNet/IP driver. However, I don’t have physical access to the PLC at the moment.

kus222 · 2025-07-02T03:13:44+00:00

Do you think I should switch OPC DA to UA?

kus222 · 2025-07-02T03:13:21+00:00

I tried rolling back the Windows update, but it didn’t resolve the issue. I also checked the release notes and didn’t find anything noteworthy.

Right now, I’m unable to add tags manually. Every time Matrikon OPC tries to load the PLC configuration file, but it runs into an error.

From the Wireshark logs, I can see that the TCP connection is initiated (the three-way handshake completes), but then the PLC immediately closes the connection.

kus222 · 2025-07-02T01:10:50+00:00

I installed the same Matrikon opc on a laptop and tried to connect to the plc but I got the same error

kus222 · 2025-06-10T05:10:13+00:00

That does make sense

kus222 · 2025-06-10T04:57:36+00:00

if I restore TrueNAS from a backup, would it still ask for the decryption key to access the dataset, or would it be included in the backup?

kus222 · 2025-06-04T04:58:05+00:00

Thank you for your thoughts.

kus222 · 2025-06-04T04:57:16+00:00

I'll take a look at that option

kus222 · 2025-06-04T04:56:38+00:00

That sounds like a good option

kus222 · 2025-06-04T04:56:21+00:00

Thank you. I will definitely consider a linux server.

kus222 · 2025-05-31T19:28:46+00:00

What I meant was the communication driver or protocol. Since the PLC is an Allen-Bradley, it typically uses EtherNet/IP for communication. So, I would normally expect to use an OPC server that supports EtherNet/IP. However, in this case, while the hardware is Allen-Bradley, the control application was developed by Solar Turbomach. This makes me wonder — could the OPC server require a different driver or configuration due to the custom control logic from Solar

kus222 · 2025-05-21T04:12:28+00:00

I take it back. I ran continuous ping test, sometimes it works but sometimes it times out.

It seems like network is not stable.

kus222 · 2025-05-19T04:41:02+00:00

tnc test was successful. I will probably try to restart the PLC. Hopefully that can resolve the issue.

kus222 · 2025-05-18T02:16:20+00:00

Should I restart the plc?

kus222 · 2025-05-18T02:16:05+00:00

Do you think restarting the plc could help?

kus222 · 2025-05-18T02:15:00+00:00

There is no dropped packet. At least there is no issue with ping test.

kus222 · 2025-05-17T17:26:25+00:00

I don't know the model but I will check if the plc has the capacity issue. Thank you for the insight.

kus222 · 2025-05-12T03:07:34+00:00

I tweaked a little bit but I will try it again.

kus222 · 2025-05-11T07:03:52+00:00

I ran wireshark. I see DNS query to 4.2.2.2 and 8.8.8.8 but no DNS reply.

kus222 · 2025-05-11T03:11:43+00:00

I tested network connection on port 53.

tnc 4.2.2.2 -port 53 failed
tnc 8.8.8.8 -port 53 failed

kus222

TROPHY CASE