okay, to je stejnej vysledek, to znamena, ze tenhle tvuj nameserver proste neresolvuje spravne patro.cz ...
1) resolvuje to jine stranky jako napr. google.com ?
2) co to je, to je nejakej modem, aka plastova krabicka od o2 nebo tak neco ?
melo by to udelat neco takovyhleho:
# dig patro.cz @93.153.117.33
; <<>> DiG 9.9.9-P1 <<>> patro.cz @93.153.117.33
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15922
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;patro.cz. IN A
;; ANSWER SECTION:
patro.cz. 1091 IN A 185.111.97.10
;; Query time: 20 msec
;; SERVER: 93.153.117.33#53(93.153.117.33)
;; WHEN: Thu Mar 15 22:45:11 CET 2018
;; MSG SIZE rcvd: 53
tzn jak sam vidis, vratilo mi to ip adresu toho patra.cz (185.111.97.10) .. je to videt v te hlavicce
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15922
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
abychom to zbytecne neprotahovali ....
proc tvuj nameserver neresolvuje patro.cz nevim ... muzes docasne pouzit napr. 8.8.4.4 coz je verejnej namesrver guglu a melo by to fungovat .. to je samozrejme docasny reseni a jeste navic ze security hlediska spatne .. abys pouzil gugli nameserver tak udelej
echo nameserver 8.8.4.4 > /etc/resolv.conf
^^ a nebo si to jeste lepe nastav v profilu NM (network manageru pro tvoji sit, aby ho pouzil)