vm can not ping pc in lan by hostnames

[Aramaki718]

If I ping a local computer by name, an error occurs: Temporary failure in name resolution. If I ping via IP then everything is ok. How to fix it?
ping PC-01
ping: PC-01: Temporary failure in name resolution

ping 10.10.1.10
PING 10.10.1.10 (10.10.1.10) 56(84) bytes of data.
64 bytes from 10.10.1.10: icmp_seq=1 ttl=128 time=0.493 ms
64 bytes from 10.10.1.10: icmp_seq=2 ttl=128 time=0.336 ms
64 bytes from 10.10.1.10: icmp_seq=3 ttl=128 time=0.546 ms
64 bytes from 10.10.1.10: icmp_seq=4 ttl=128 time=0.409 ms
64 bytes from 10.10.1.10: icmp_seq=5 ttl=128 time=0.467 ms
64 bytes from 10.10.1.10: icmp_seq=6 ttl=128 time=0.388 ms
64 bytes from 10.10.1.10: icmp_seq=7 ttl=128 time=0.551 ms
64 bytes from 10.10.1.10: icmp_seq=8 ttl=128 time=0.410 ms
64 bytes from 10.10.1.10: icmp_seq=9 ttl=128 time=0.422 ms
64 bytes from 10.10.1.10: icmp_seq=10 ttl=128 time=0.479 ms
64 bytes from 10.10.1.10: icmp_seq=11 ttl=128 time=0.401 ms
64 bytes from 10.10.1.10: icmp_seq=12 ttl=128 time=0.278 ms
--- 10.10.1.10 ping statistics ---
12 packets transmitted, 12 received, 0% packet loss, time 11258ms
rtt min/avg/max/mdev = 0.278/0.431/0.551/0.077 ms

 

[twei]

Please provide the output of "nslookup pc-01" (you may need to install it using the following command: "apt install dnsutils") and "cat /etc/resolv.conf"
I guess that you either didn't configure a DNS Server or that you didn't configure the DNS domain/search entries in /etc/resolv.conf

 

[UdoB]

Temporary failure in name resolution.

The real solution is to have a DNS server - or more of them

As this requires some effort the usual workaround is to facilitate "/etc/hosts" and put the few relevant names/IP addresses in there.

Please read: https://pve.proxmox.com/wiki/Instal...olve_Node_IP_Address_Through_/etc/hosts_Entry


PS: if you build a cluster: /etc/hosts must have identical content on all nodes.

 

[Aramaki718]

Please provide the output of "nslookup pc-01" (you may need to install it using the following command: "apt install dnsutils") and "cat /etc/resolv.conf"
I guess that you either didn't configure a DNS Server or that you didn't configure the DNS domain/search entries in /etc/resolv.conf

Ubuntu
nslookup PC-01
;; Got SERVFAIL reply from 127.0.0.53
Server: 127.0.0.53
Address: 127.0.0.53#53

** server can't find PC-01: SERVFAIL

If I edit a file /etc/resolv.conf, save it, then restart the service, it resets back.
/etc/resolv.conf
nameserver 127.0.0.53
options edns0 trust-ad
search .
-----
Proxmox VE
nslookup pc-01
root@pve01:~# nslookup PC-01
Server: 10.10.1.190
Address: 10.10.1.190#53

Name: PC-01.it.local
Address: 10.10.1.10