I'm running into a weird issue with mounting an NFS share on my 22.04.3 Ubuntu box.
When I try to mount the share using the server's FQDN like this:
sudo mount -t nfs nfsserver01.mydomain.com:/path/to/share /mnt/nfs
It fails with a "No such file or directory" error. But works, when I use just the server's short name:
sudo mount -t nfs nfsserver01:/path/to/share /mnt/nfs
installed nfs version 1:2.6.1-1ubuntu1.2
The machine is domain joined with sssd. Despite removing the search domain when I dig the FQDN name I still get a authoritative response from the domain DNS server
Placing the ip and hostname of the nfs server in /etc/hosts eg.
10.1.2.5 nfsserver01.mydomain.com or 10.1.2.5 nfsserver01does not correct the issue.
I'm not sure if there is a way to defeat the dns server response or being domain joined is causing the issue. Any input is appreciated.
Requested output:
nfsserver01.mydomain.com has address 10.1.2.5nfsserver01.mydomain.com has address 10.1.2.4nfsserver01.mydomain.com has address 10.1.2.6; <<>> DiG 9.18.18-0ubuntu0.22.04.2-Ubuntu <<>> nfsserver01;; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 30031;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1;; OPT PSEUDOSECTION:; EDNS: version: 0, flags:; udp: 65494;; QUESTION SECTION:;nfsserver01. IN A;; Query time: 0 msec;; SERVER: 127.0.0.53#53(127.0.0.53) (UDP);; WHEN: Fri Mar 08 19:14:23 EST 2024;; MSG SIZE rcvd: 39nfsserver01.mydomain.com has address 10.1.2.5nfsserver01.mydomain.com has address 10.1.2.6nfsserver01.mydomain.com has address 10.1.2.4; <<>> DiG 9.18.18-0ubuntu0.22.04.2-Ubuntu <<>> nfsserver01.mydomain.com;; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63356;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1;; OPT PSEUDOSECTION:; EDNS: version: 0, flags:; udp: 65494;; QUESTION SECTION:;nfsserver01.mydomain.com. IN A;; ANSWER SECTION:nfsserver01.mydomain.com. 3599 IN A 10.1.2.4nfsserver01.mydomain.com. 3599 IN A 10.1.2.5nfsserver01.mydomain.com. 3599 IN A 10.1.2.6;; Query time: 0 msec;; SERVER: 127.0.0.53#53(127.0.0.53) (UDP);; WHEN: Fri Mar 08 19:14:23 EST 2024;; MSG SIZE rcvd: 102user@hostname:~$ cat /etc/resolv.conf**~truncated**# operation for /etc/resolv.conf.nameserver 127.0.0.53options edns0 trust-adsearch mydomain.com