how come normal user cannot see nfs shares with df?

**the Question: where is this officially documented?** cannot find it in eg.: https://linux.die.net/man/1/df i have a suspicion that it is related to that the user doesn’t have UNIX level permission for those shares. user@sles:~> df -h|grep -i foobar user@sles:~> sudo df -h|grep -i foobar 1.2.3.4:/foobar 110G 40M 110G 1% /root/foobar 1.2.3.4:/foobar2 180G 106G 75G 59% /root/foobar2 user@sles:~> but this can confuse people that just want to list ALL the mounted shares without root permission.