Am 04.05.2021 um 00:00 schrieb Laurence Chiu <lchiu7@xxxxxxxxx>:
I'm not sure what information telnet can provide
See my second message from yesterday. There I explained the details.
so the firewall rules appeared to be fine but they were still gettingconnection refused. That led me to consider nobody was listening.
My daily routine (also administering Firewalls for customers) is quite
different. Experience proves that most errors are not a firewall problem.
Before I even consider logging into the firewall for checking, I request a
netstat check. Saved me a lot of unnecessary work.
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