Please don't flag this question as a duplicate because I really need your help. I once used OpenDNS in my router to block some websites & now I'm stuck with at whatever I do. I have already removed OpenDNS from my router & tried half of the commands suggested in other question but none of them work for me. Most of the websites which deal with a proxy, adult content etc. are all blocked & I'm requesting for a solution.
2 Answers
This should clear it
# sudo systemd-resolve --flush-cache
You can check with
# sudo systemd-resolve --statistics
it should show 0 in Current cache size
DNSSEC supported by current servers: no Transactions Current Transactions: 0 Total Transactions: 93750 Cache Current Cache Size: 0 Cache Hits: 18686 Cache Misses: 28576 DNSSEC Verdicts Secure: 0 Insecure: 0 Bogus: 0 Indeterminate: 0
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You need to get into the ROUTER settings and flush the cache there as that's where your DNS lookups entries are cached, not on your local computer. If you need help with that, you might want to visit a forum that focuses on your router model. Jan 23, 2019 at 0:16
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Maybe this version also has two (2) DNS caches, like Ubuntu 20.10.
Please check the full tutorial to flush DNS caches:
Please don't flag this question as a duplicate- It is a duplicate. The correct answers are askubuntu.com/a/909173/446317 and askubuntu.com/a/907558/446317 askubuntu.com/a/929478/446317 - that's 3 correct answers in two other questions. Duplicate.