** `dig +norec 68.123.224.212.zen.spamhaus.org @c.gns.spamhaus.org.` (maybe also replace 'c' in 'c.gns.spamhaus.org.' with 'a' - 'd')this sounds odd - the responses to DNSBL lookups are usually in 127.0.0.0/8 (and not 37.131.68.29)
could you:
* provide your resolv.conf file (`cat /etc/resolv.conf`)
* the output of `ping -c 4 google.com`
* the output of `ping firstgate.proxmox.com` (there will be a timeout - but we'll get what firstgate.proxmox.com resolves to)
* install dnsutils (dig is inside) `apt install dnsutils`
* provide the output of:
** `dig +norec 68.123.224.212.zen.spamhaus.org @c.gns.spamhaus.org.` (maybe also replace 'c' in 'c.gns.spamhaus.org.' with 'a' - 'd')
** `dig 68.123.224.212.zen.spamhaus.org`
thanks!
; <<>> DiG 9.16.1 <<>> +norec 68.123.224.212.zen.spamhaus.org @c.gns.spamhaus.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 37837
;; flags: qr aa; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;68.123.224.212.zen.spamhaus.org. IN A
;; AUTHORITY SECTION:
zen.spamhaus.org. 10 IN SOA need.to.know.only. hostmaster.spamhaus.org. 2003191900 3600 600 432000 10
;; Query time: 171 msec
;; SERVER: 46.246.28.116#53(46.246.28.116)
;; WHEN: Thu Mar 19 22:01:40 Arab Standard Time 2020
;; MSG SIZE rcvd: 113
================
; <<>> DiG 9.16.1 <<>> 68.123.224.212.zen.spamhaus.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 45967
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4000
; COOKIE: 2a944d62e1d8cb9b (echoed)
;; QUESTION SECTION:
;68.123.224.212.zen.spamhaus.org. IN A
;; ANSWER SECTION:
68.123.224.212.zen.spamhaus.org. 0 IN A 37.131.68.29
;; Query time: 156 msec
;; SERVER: 192.168.1.6#53(192.168.1.6)
;; WHEN: Thu Mar 19 22:02:38 Arab Standard Time 2020
;; MSG SIZE rcvd: 88
=================
; <<>> DiG 9.16.1 <<>> dig 68.123.224.212.zen.spamhaus.org @127.0.0.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 61682
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4000
; COOKIE: 4050708d855b34cb (echoed)
;; QUESTION SECTION:
;dig. IN A
;; Query time: 0 msec
;; SERVER: 192.168.1.6#53(192.168.1.6)
;; WHEN: Thu Mar 19 22:03:24 Arab Standard Time 2020
;; MSG SIZE rcvd: 44
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 30671
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4000
;; QUESTION SECTION:
;68.123.224.212.zen.spamhaus.org. IN A
;; AUTHORITY SECTION:
zen.spamhaus.org. 8 IN SOA need.to.know.only. hostmaster.spamhaus.org. 2003191903 3600 600 432000 10
;; Query time: 187 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Thu Mar 19 22:03:24 Arab Standard Time 2020
;; MSG SIZE rcvd: 124