Tixy writes:
Where could your machine be getting this IP address from? It's the
same IP address shown in your output when you used the incorrect
address 'ftp.security.debian.org' and for me that doesn't resolve to
any IP address.
>From here both security.debian.org and ftp.security.debian.org resolve
to 57.128.81.193. Happens both with Unbound and with 8.8.8.8.
toncho/~ 22 dig ftp.security-debian.org
; <<>> DiG 9.19.19-1-Debian <<>> ftp.security-debian.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2686
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
;; QUESTION SECTION:
;ftp.security-debian.org. IN A
;; ANSWER SECTION:
ftp.security-debian.org. 3296 IN CNAME security-debian.org.
security-debian.org. 3089 IN A 57.128.81.193
;; Query time: 0 msec
;; SERVER: 192.168.1.2#53(192.168.1.2) (UDP)
;; WHEN: Thu Jan 18 12:03:08 CST 2024
;; MSG SIZE rcvd: 101
toncho/~ 22 dig @8.8.8.8 ftp.security-debian.org
; <<>> DiG 9.19.19-1-Debian <<>> @8.8.8.8 ftp.security-debian.org
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42376
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;ftp.security-debian.org. IN A
;; ANSWER SECTION:
ftp.security-debian.org. 3600 IN CNAME security-debian.org.
security-debian.org. 3600 IN A 57.128.81.193
;; Query time: 308 msec
;; SERVER: 8.8.8.8#53(8.8.8.8) (UDP)
;; WHEN: Thu Jan 18 12:03:42 CST 2024
;; MSG SIZE rcvd: 82
toncho/~ 22 dig @8.8.8.8 security-debian.org
; <<>> DiG 9.19.19-1-Debian <<>> @8.8.8.8 security-debian.org
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13855
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;security-debian.org. IN A
;; ANSWER SECTION:
security-debian.org. 3600 IN A 57.128.81.193
;; Query time: 284 msec
;; SERVER: 8.8.8.8#53(8.8.8.8) (UDP)
;; WHEN: Thu Jan 18 12:05:00 CST 2024
;; MSG SIZE rcvd: 64