Hello list, I have made a successful query in one of my VPS as the following.
~$ dig 235.84.36.104.zen.spamhaus.org ; <<>> DiG 9.16.48-Ubuntu <<>> 235.84.36.104.zen.spamhaus.org ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2160 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 65494 ;; QUESTION SECTION: ;235.84.36.104.zen.spamhaus.org. IN A ;; ANSWER SECTION: 235.84.36.104.zen.spamhaus.org. 852 IN A 127.0.0.10 ;; Query time: 0 msec ;; SERVER: 127.0.0.53#53(127.0.0.53) ;; WHEN: Wed Jun 12 02:45:16 UTC 2024 ;; MSG SIZE rcvd: 75 But, the same query wouldn't success in another VPS as follows. $ dig 235.84.36.104.zen.spamhaus.org ; <<>> DiG 9.16.1-Ubuntu <<>> 235.84.36.104.zen.spamhaus.org ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 15831 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 65494 ;; QUESTION SECTION: ;235.84.36.104.zen.spamhaus.org. IN A ;; Query time: 1 msec ;; SERVER: 127.0.0.53#53(127.0.0.53) ;; WHEN: Wed Jun 12 10:45:41 HKT 2024 ;; MSG SIZE rcvd: 59 The returned result is "NXDOMAIN". Both nodes use systemd-resolve as DNS subresolver. Do you know what's the reason behind this? Thanks.