但是又不能重启rpcbind服务,我们需要使用export命令了
exportfs命令常用选项-a 全部挂载或者全部卸载-r 重新挂载-u 卸载某一个目录-v 显示共享目录以下操作在服务端上
实验:两台centos7
vim /etc/exports
//增加/tmp/ 192.168.133.0/24(rw,sync,no_root_squash)
exportfs -arv
//不用重启nfs服务,配置文件就会生效
nfs服务不能随便重启,重启服务会对挂载了nfs的客户端有影响,
exportfs来自nfs-utils包
作用是修了配置后重载,不用重启服务。
服务器:
[root@JAMF nfsdir]# vim /etc/exports ????/home/nfsdir 172.16.22.0/24(rw,sync,all_squash,anonuid=1000,anongid=1000)/tmp 172.16.22.0/24(rw,sync,no_root_squash)[root@JAMF nfsdir]# exportfs -arvexporting 172.16.22.0/24:/tmpexporting 172.16.22.0/24:/home/nfsdir
客户端:
[root@zabbix ~]# showmount -e 172.16.22.247 ??????????????????????????Export list for 172.16.22.247:/tmp ????????172.16.22.0/24/home/nfsdir 172.16.22.0/24[root@zabbix ~]# mkdir /mnt/tmp[root@zabbix ~]# mount -t nfs -onolock 172.16.22.247:/tmp /mnt/tmp -o nolock 了,即在挂载nfs服务时,不加锁。 在客户端上执行:[root@zabbix ~]# touch /mnt/tmp/new.txt[root@zabbix tmp]# ll /mnt/tmp/new.txt ??-rw-r--r-- 1 root root 0 Mar 16 01:41 /mnt/tmp/new.txt
服务器:
[root@JAMF nfsdir]# ll /tmp/new.txt -rw-r--r-- 1 root root 0 Mar 16 01:41 /tmp/new.txt[root@zabbix mnt]# mount -t nfs -Oremount,nfsvers=3 172.16.22.247:/tmp /mnt/tmpmount.nfs: /mnt/tmp is busy or already mounted[root@zabbix mnt]# umount /mnt/tmp/ ???????????????????????????????????????????[root@zabbix mnt]# mount -t nfs -Oremount,nfsvers=3 172.16.22.247:/tmp /mnt/tmp
#NFS客户端问题:NFS 4版本会有该问题
客户端文件属主属组nobody
客户端挂载共享目录后,不管是root用户还是普通用户,创建新文件时属主、属组为nobody
客户端挂载时加上 -O nfsvers=3
[root@zabbix mnt]# mount -t nfs -Oremount,nfsvers=3 172.16.22.247:/tmp /mnt/tmpmount.nfs: /mnt/tmp is busy or already mounted[root@zabbix mnt]# umount /mnt/tmp/ ???????????????????????????????????????????[root@zabbix mnt]# mount -t nfs -Oremount,nfsvers=3 172.16.22.247:/tmp /mnt/tmp
客户端和服务端都需要
vim /etc/idmapd.conf //
把“#Domain = local.domain.edu” 改为 “Domain = xxx.com” (这里的xxx.com,随意定义吧),然后再重启rpcidmapd服务
服务器:
[root@JAMF nfsdir]# vim /etc/idmapd.conf [General]#Verbosity = 0# The following should be set to the local NFSv4 domain name# The default is the host‘s DNS domain name.Domain = jamf.oceanwing.com[root@JAMF nfsdir]# systemctl restart rpcidmapd客户端:[root@zabbix mnt]# vim /etc/idmapd.conf [General]#Verbosity = 0# The following should be set to the local NFSv4 domain name# The default is the host‘s DNS domain name.Domain = zabbix.oceanwing.com[root@zabbix mnt]# systemctl restart rpcidmapd
nfs下的exportfs命令和nfs客户端重新挂载
原文地址:http://blog.51cto.com/m51cto/2087738