디렉터리에 액세스할 수 없으며 이유를 이해할 수 없습니다.
사용자 "exchange"는 올바른 그룹에 있으며 마운트 해제된 디렉토리 application1_exchange_test에 액세스할 수 있지만 application1_exchange에는 액세스할 수 없습니다. 유일한 차이점은 application1_exchange가 nfs로 마운트된다는 것입니다.
root@application2-dev:/var/spool/application1_exchange/from# namei -mo `pwd`
f: /var/spool/application1_exchange/from
drwxr-xr-x root root /
drwxr-xr-x root root var
drwxr-xr-x root root spool
drwxrwx--- tomcat8 tomcat8 application1_exchange
drwxrwxr-x tomcat8 tomcat8 from
root@application2-dev:/var/spool/application1_exchange/from# su exchange
exchange@application2-dev:/var/spool/application1_exchange/from$ groups
exchange tomcat8
exchange@application2-dev:/var/spool/application1_exchange/from$ ls -ld . .. ../..
ls: cannot access '../..': Permission denied
drwxrwxr-x 3 tomcat8 tomcat8 4096 Jun 21 07:31 .
drwxrwx--- 11 tomcat8 tomcat8 4096 Jun 21 07:31 ..
exchange@application2-dev:/var/spool/application1_exchange/from$ cd /var/spool/application1_exchange
bash: cd: /var/spool/application1_exchange: Permission denied
exchange@application2-dev:/var/spool/application1_exchange/from$ cd /var/spool/
exchange@application2-dev:/var/spool$ ls -dl application1_exchange*
drwxrwx--- 11 tomcat8 tomcat8 4096 Jun 21 07:31 application1_exchange
drwxrwx--- 3 tomcat8 tomcat8 4096 Jul 9 11:08 application1_exchange_test
exchange@application2-dev:/var/spool$ ls -l application1_exchange*
ls: cannot open directory 'application1_exchange': Permission denied
application1_exchange_test:
total 4
drwxr-xr-x 3 tomcat8 tomcat8 4096 Jul 9 11:08 from
exchange@application2-dev:/var/spool$ findmnt /var/spool/application1_exchange
TARGET SOURCE FSTYPE OPTIONS
/var/spool/application1_exchange 192.168.1.1:/mnt/exchange nfs rw,relatime,sync,vers=3,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,
마운트 해제된 디렉터리의 소유권은 아무런 영향을 미치지 않습니다. 루트이지만 tomcat8과 동일합니다. nfsd/내보내기 옵션은 rw, no_root_squash, sync, no_subtree_check입니다.