centos6.9 安装nfs服务

安装

yum -y install nfs-utils
yum -y install rpcbind

开机启动

chkconfig rpcbind on
chkconfig nfs on

配置端口

nfs除了主程序端口2049和rpcbind的端口111是固定以外，还会使用一些随机端口，以下配置将定义这些端口，以便配置防火墙

# vim /etc/sysconfig/nfs
#追加端口配置
MOUNT_PORT=4001　　
STATD_PORT=4002
LOCKD_TCPPORT=4003
LOCKD_UDPPORT=4004
RQUOTAD_PORT=4005

配置要共享的目录

# vim /etc/exports　　#配置访问权限
/var/nfs/simple-nfs  192.168.100.0/24(ro,async,root_squash)

配置防火墙

# vim /etc/sysconfig/iptables
-A INPUT -p tcp -m tcp --dport 111 -j ACCEPT
-A INPUT -p udp -m udp --dport 111 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 2049 -j ACCEPT
-A INPUT -p udp -m udp --dport 2049 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 4001:4005 -j ACCEPT
-A INPUT -p udp -m udp --dport 4001:4005 -j ACCEPT

重启服务和防火墙

service rpcbind start
service nfs start
service iptables restart

Linux客户端挂载

# mount -t nfs 192.168.100.110:/var/nfs/simple-nfs /mnt
mount -t nfs 10.0.0.221:/home/adminis/logs tomcat7_8

也可将挂载配置写入fstab文件中，与普通磁盘挂载一样，挂载时同样可以指定权限，只是类型为nfs

问题

1 报错

[root@VM_0_221_centos logs]# service nfs restart
Shutting down NFS daemon:                                  [FAILED]
Shutting down NFS mountd:                                  [FAILED]
Shutting down NFS quotas:                                  [FAILED]
Shutting down NFS services:                                [  OK  ]
Starting NFS services:                                     [  OK  ]
Starting NFS quotas: Cannot register service: RPC: Unable to receive; errno = Connection refused
rpc.rquotad: unable to register (RQUOTAPROG, RQUOTAVERS, udp).
                                                           [FAILED]
Starting NFS mountd:                                       [FAILED]
Starting NFS daemon: rpc.nfsd: writing fd to kernel failed: errno 111 (Connection refused)

解决：
解决办法就是重新启动rpcbind服务即可：
service rpcbind restart
service nfs restart
2 安装 rpcbind报错

Transaction Test Succeeded
Running Transaction
groupadd: cannot open /etc/group
error: %pre(rpcbind-0.2.0-16.el6.x86_64) scriptlet failed, exit status 6
Error in PREIN scriptlet in rpm package rpcbind-0.2.0-16.el6.x86_64
error:   install: %pre scriptlet failed (2), skipping rpcbind-0.2.0-16.el6
  Verifying  : rpcbind-0.2.0-16.el6.x86_64                                                                    1/1 

Failed:
  rpcbind.x86_64 0:0.2.0-16.el6  

解决：

chattr -i /etc/group /etc/passwd /etc/shadow /etc/gshadow

参考：https://wiki.jikexueyuan.com/project/linux/nfs.html