我在读取 NFS 安装时遇到一些问题。
我有服务器1和客户端1。它们都是 SLES 12 SP1。
服务器1:
server1:/ # cat /etc/exports
/usr/zap/trans *(rw,root_squash,sync,no_subtree_check)
server1:/ # ls -ld /usr/zap/trans
drwxrwx--x 13 root zapsys 4096 Feb 29 18:46 /usr/zap/trans
server1:/ # exportfs -av
exporting *:/usr/zap/trans
我可以在 client1 上毫无问题地挂载 NFS 共享:
client1:/ # mount -v -t nfs4 server1:/usr/zap/trans /mnt
mount.nfs4: timeout set for Thu Jun 30 22:32:09 2016
mount.nfs4: trying text-based options 'addr=10.1.2.4,clientaddr=10.1.2.3'
client1:/ # mount | grep server1
server1:/usr/zap/trans on /mnt type nfs4 (rw,relatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=10.1.2.3,local_lock=none,addr=10.1.2.4)
client1:/ # ls -ld /mnt
drwxrwx--x 13 root zapsys 4096 Feb 29 18:46 /mnt
Rpcinfo 和 showmount 也可以正常工作:
client1:/ # rpcinfo -p server1
program vers proto port service
100000 4 udp 111 portmapper
100000 3 udp 111 portmapper
100000 2 udp 111 portmapper
100000 4 tcp 111 portmapper
100000 3 tcp 111 portmapper
100000 2 tcp 111 portmapper
100024 1 udp 61493 status
100024 1 tcp 32256 status
100005 1 udp 20048 mountd
100005 1 tcp 20048 mountd
100005 2 udp 20048 mountd
100005 2 tcp 20048 mountd
100005 3 udp 20048 mountd
100005 3 tcp 20048 mountd
100003 3 tcp 2049 nfs
100003 4 tcp 2049 nfs
100227 3 tcp 2049 nfs_acl
100003 3 udp 2049 nfs
100003 4 udp 2049 nfs
100227 3 udp 2049 nfs_acl
100021 1 udp 26684 nlockmgr
100021 3 udp 26684 nlockmgr
100021 4 udp 26684 nlockmgr
100021 1 tcp 22369 nlockmgr
100021 3 tcp 22369 nlockmgr
100021 4 tcp 22369 nlockmgr
client1:/ # showmount -e server1
Export list for server1:
/usr/zap/trans *
问题是当我尝试读取 client1 上已安装目录的内容时,我的权限被拒绝。但是,我可以列出特定目录,如下所示:
client1:/ # ls -l /mnt
ls: cannot open directory /mnt: Permission denied
client1:/ # ls -l /mnt/lost+found
ls: cannot open directory /mnt/lost+found: Permission denied
client1:/ # ls -ld /mnt/lost+found
drwx------ 2 root root 16384 Feb 29 12:51 /mnt/lost+found
client1:/ # ls -l /mnt/tmp
ls: cannot open directory /mnt/tmp: Permission denied
client1:/ # ls -ld /mnt/tmp
drwxrwx--x 2 root zapsys 4096 Feb 29 18:46 /mnt/tmp
我不明白为什么会发生这种情况。有人有线索吗?