Daher kein Ping-Thema, sondern natürlich DNS, was ich auch meint, aber halt nicht schrieb... <schäm>.In /etc/resolv.conf habe ich meine MikroTik stehen. Der hat als primären DNS mein PI-Hole, als sekundären Quad9. Auf dem Weg fragen auch alle anderen Geräte DNS bei mir an. Daher für mich auch so unerklärlich...
Code:
domain int search int nameserver 192.168.xx.1
Code:
root@HAL-proxmox:~# [B]dig ftp.de.debian.org[/B] ; <<>> DiG 9.11.5-P4-5.1-Debian <<>> ftp.de.debian.org ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 14329 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;ftp.de.debian.org. IN A ;; ANSWER SECTION: ftp.de.debian.org. 3441 IN A 141.76.2.4 ;; Query time: 1 msec ;; SERVER: 192.168.xx.1#53(192.168.xx.1) ;; WHEN: Sat Mar 07 12:29:08 CET 2020 ;; MSG SIZE rcvd: 51 root@HAL-proxmox:~#

Code:
root@HAL-proxmox:~# [B]ping ftp.de.debian.org[/B] ping: ftp.de.debian.org: Temporary failure in name resolution root@HAL-proxmox:~# [B]ping ftp.de.debian.org[/B] PING ftp.de.debian.org (141.76.2.4) 56(84) bytes of data. 64 bytes from debian.inf.tu-dresden.de (141.76.2.4): icmp_seq=1 ttl=50 time=24.5 ms 64 bytes from debian.inf.tu-dresden.de (141.76.2.4): icmp_seq=2 ttl=50 time=23.9 ms 64 bytes from debian.inf.tu-dresden.de (141.76.2.4): icmp_seq=3 ttl=50 time=24.1 ms ^C --- ftp.de.debian.org ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 6ms rtt min/avg/max/mdev = 23.919/24.191/24.512/0.275 ms root@HAL-proxmox:~# ^C
Code:
carsten@HAL:~$ dig ftp.de.debian.org +trace | grep 'Received' ;; Received 813 bytes from 192.168.xx.1#53(192.168.30.1) in 0 ms ;; Received 847 bytes from 192.33.4.12#53(c.root-servers.net) in 7 ms ;; Received 362 bytes from 199.19.57.1#53(d0.org.afilias-nst.org) in 22 ms ;; Received 635 bytes from 194.58.198.32#53(nsp.dnsnode.net) in 24 ms carsten@HAL:~$ dig ftp.de.debian.org +trace | grep 'Received' ;; Received 813 bytes from 192.168.xx.1#53(192.168.30.1) in 0 ms ;; Received 819 bytes from 192.58.128.30#53(j.root-servers.net) in 20 ms ;; Received 362 bytes from 199.249.120.1#53(b2.org.afilias-nst.org) in 6 ms ;; Received 296 bytes from 64.68.197.10#53(dns4.easydns.info) in 93 ms carsten@HAL:~$ dig ftp.de.debian.org +trace | grep 'Received' ;; Received 813 bytes from 192.168.xx.1#53(192.168.30.1) in 0 ms ;; Received 819 bytes from 199.7.83.42#53(l.root-servers.net) in 91 ms ;; Received 362 bytes from 199.19.56.1#53(a0.org.afilias-nst.info) in 20 ms ;; Received 296 bytes from 192.174.68.100#53(sec1.rcode0.net) in 7 ms carsten@HAL:~$
ABER: Nach ein paar Minuten ändert Proxmox meine DNS-Einstellung automatisch zurück auf den Stand vorher. Wirkt da irgend ein Selbstheilungs-Prozess in Proxmox und könnte das ein Indikator für das eigentliche Problem sein?


Einen Kommentar schreiben: