Just an FYI on a problem I found with two DNS of 1and1 ionos. The affected DNS are 212.227.123.16 and 212.227.123.17 which both are not responding to *.torproject.org domain or sub domains. I found this out as my system reverted back to the default DNS after a system crash. I'm now using bind on the local system and all is fine. Just thought to let all know just in case they are using these DNS.
Paul
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