10.3 NFS服务端部署环境准备
10.3.1 NFS服务部署服务器准备
| 服务器系统 | 角色 | IP |
| Centos6.7 x86_64 | NFS服务器端（NFS-server） | 192.168.1.14 |
| Centos6.7 x86_64 | NFS客户端（Web-lamp01） | 192.168.1.15 |
| Centos6.7 x86_64 | NFS客户端（Web-lnmp02） | 192.168.1.16 |
10.3.2 NFS服务部署架构图
10.3.3 NFS服务器端操作系统及内核版本
[root@NFS-server ~]# cat /etc/redhat-release
CentOS release 6.7 (Final)
[root@NFS-server ~]# username -r
[root@NFS-server ~]# uname -r
2.6.32-573.el6.x86_64
[root@NFS-server ~]# uname -m
x86_64
10.4 NFS服务安装前准备
10.4.1 查询nfs-utils和rpcbind包是否安装
[root@NFS-server ~]# rpm -qa nfs-utils rpcbind ##查询结果为两个安装包都未安装
[root@NFS-server ~]#
知识扩展：
安装NFS软件安装的3种方法：
检查：rpm -qa nfs-utils rpcbind ←最佳
1)方法1:yum -y install nfs-utils rpcbind
2)方法2:通过系统光盘里的rpm包安装，命令如:rpm -ivh nfs-utils-1.2.3-36.e16.x86_64.rpm
3)方法3:LANG=en
yum grouplist|grep -i nfs
yum groupinstall "NFS file server" -y
10.4.2使用方法1安装所需软件包
10.4.3检查安装包是否安装上
[root@NFS-server ~]# rpm -qa nfs-utils rpcbind
rpcbind-0.2.0-11.el6_7.x86_64
nfs-utils-1.2.3-64.el6.x86_64
10.4.4 接下来启动相应的服务
[root@NFS-server ~]# /etc/init.d/rpcbind status <==检查rpcbind服务状态
rpcbind is stopped
[root@NFS-server ~]# rpcinfo -p localhost <==rpcbind服务未启动检查 rpcinfo信息报错
rpcinfo: can't contact portmapper: RPC: Remote system error - Connection refused
[root@NFS-server ~]# /etc/init.d/rpcbind start <==启动rpcbind服务
Starting rpcbind: [ OK ]
[root@NFS-server ~]# /etc/init.d/rpcbind status
rpcbind (pid 2083) is running...
[root@NFS-server ~]# /etc/init.d/nfs status <==查看nfs服务状态
rpc.svcgssd is stopped
rpc.mountd is stopped
nfsd is stopped
rpc.rquotad is stopped
[root@NFS-server ~]# /etc/init.d/nfs start <==启动nfs服务
Starting NFS services: [ OK ]
Starting NFS quotas: [ OK ]
Starting NFS mountd: [ OK ]
Starting NFS daemon: [ OK ]
Starting RPC idmapd: [ OK ]
10.4.5 设置开机自启动
[root@NFS-server ~]# chkconfig --level 35 nfs on <==设置nfs服务开机自启动
[root@NFS-server ~]# chkconfig --list nfs
nfs 0:off 1:off 2:off 3:on 4:off 5:on 6:off
[root@NFS-server ~]# chkconfig --level 35 rpcbind on
[root@NFS-server ~]# chkconfig --list rpcbind <==<==设置rpcbind服务开机自启动
rpcbind 0:off 1:off 2:on 3:on 4:on 5:on 6:off
10.5 配置NFS服务端
10.5.1 NFS服务端配置文件路径
NFS服务配置文件路径为：/etc/exports,并且默认是为空。
[root@NFS-server ~]# ll /etc/exports
-rw-r--r--. 1 root root 0 Jan 12 2010 /etc/exports
[root@NFS-server ~]# cat /etc/exports
[root@NFS-server ~]#
10.5.2 编辑NFS服务端配置文件
[root@NFS-server ~]# vim /etc/exports
/data 192.168.1.0/24(rw,sync,all_squash) <==添加如下内容，这里要注意加all_squash是将所有的普通用户压缩成匿名用户nobody,如果参数不加，客户端普通用户有可能将没有写的权限。
[root@NFS-server ~]# vim /etc/exports
/data 192.168.1.0/24(rw,sync,all_squash) <==添加如下内容
[root@NFS-server ~]# mkdir -p /data <==创建共享目录/data
[root@NFS-server ~]# ls -ld /data
drwxr-xr-x. 3 root root 4096 Nov 26 15:19 /data <==当前共享目录的属主属组分别为root
[root@NFS-server ~]# chown -R nfsnobody.nfsnobody /data <==修改/data及子文件属主属组为nfsnobody
[root@NFS-server ~]# ls -ld /data
drwxr-xr-x. 3 nfsnobody nfsnobody 4096 Nov 26 15:19 /data
10.5.3 重新加载NFS服务(优雅重启)
[root@NFS-server ~]# /etc/init.d/nfs reload ===exportfs -r
[root@NFS-server ~]# cat /var/lib/nfs/etab
/data 192.168.1.0/24(rw,sync,wdelay,hide,nocrossmnt,secure,root_squash,all_squash,no_subtree_check,secure_locks,acl,anonuid=65534,anongid=65534,sec=sys,rw,root_squash,all_squash)
[root@NFS-server ~]# showmount -e 192.168.1.14 <==挂载前首先检查有权限需要挂载的信息
Export list for 192.168.1.14:
/data 192.168.1.0/24 <---可以看到共享/data目录
10.5.4 检查或测试挂载
[root@NFS-server test]# mount -t nfs 192.168.1.14:/data /mnt ##将/data共享目录挂载到/mnt目录
[root@NFS-server test]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 7.1G 1.5G 5.3G 22% /
tmpfs 279M 0 279M 0% /dev/shm
/dev/sda1 190M 36M 145M 20% /boot
192.168.1.14:/data 7.1G 1.5G 5.3G 22% /mnt
注意：
大型企业工作场景统一按照运维规范将服务的启动写到/etc/rc.local文件里，而不用chkconfig管理。把/etc/rc.local文件作为本机的重要档案，所有服务的开机自启动都必须放入/etc/rc.local。这样规范的好处是，一旦有运维人员离职，或者业务迁移时都通过/etc/rc.local很容易查看服务器相关的服务，可以方便运维管理。并且把启动命令放入到/etc/rc.local文件中一定要加上启动服务的注释。
[root@NFS-server test]# vim /etc/rc.local
#!/bin/sh
#
# This script will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don't
# want to do the full Sys V style init stuff. touch /var/lock/subsys/local
#start up nfs services by zhurui at 20160226
/etc/init.d/rpcbind start <==开机自启rpcbind服务
/etc/init.d/nfs start <==开机自启nfs服务
Web-lamp01客户端部署：
1.安装软件
[root@Web-lamp01 ~]# yum -y install nfs-utils rpcbind
Loaded plugins: fastestmirror, security
Setting up Install Process
Loading mirror speeds from cached hostfile
* base: mirrors.sina.cn
* extras: mirrors.opencas.cn
* updates: centos.ustc.edu.cn
base | 3.7 kB 00:00
extras | 3.4 kB 00:00
extras/primary_db | 34 kB 00:00
updates | 3.4 kB 00:00
2.启动rpcbind
[root@Web-lamp01 ~]# /etc/init.d/rpcbind start
Starting rpcbind: [ OK ]
[root@Web-lamp01 ~]#
3.配置开机自启动
[root@Web-lamp01 ~]# chkconfig --level 35 rpcbind on
[root@Web-lamp01 ~]# chkconfig --list rpcbind
rpcbind 0:off 1:off 2:on 3:on 4:on 5:on 6:off
[root@Web-lamp01 ~]#
4.测试服务端共享
[root@Web-lamp01 ~]# showmount -e 192.168.1.14
Export list for 192.168.1.14:
/data 192.168.1.0/24
5.挂载
[root@Web-lamp01 ~]# mount -t nfs 192.168.1.14:/data /mnt
[root@Web-lamp01 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 7.1G 1.5G 5.3G 22% /
tmpfs 279M 0 279M 0% /dev/shm
/dev/sda1 190M 36M 145M 20% /boot
192.168.1.14:/data 7.1G 1.5G 5.3G 22% /mnt
6.测试读,写
服务器端：
[root@NFS-server test]# cd /data/
[root@NFS-server data]# ll
total 8
-rw-r--r--. 1 nfsnobody nfsnobody 0 Nov 28 12:20 fs.sf
drwxr-xr-x. 2 nfsnobody nfsnobody 4096 Nov 26 15:19 test
drwxr-xr-x. 2 nfsnobody nfsnobody 4096 Nov 28 12:20 zhurui
[root@NFS-server data]# mkdir zhurui1
[root@NFS-server data]# ll
total 12
-rw-r--r--. 1 nfsnobody nfsnobody 0 Nov 28 12:20 fs.sf
drwxr-xr-x. 2 nfsnobody nfsnobody 4096 Nov 26 15:19 test
drwxr-xr-x. 2 nfsnobody nfsnobody 4096 Nov 28 12:20 zhurui
drwxr-xr-x. 2 root root 4096 Nov 28 12:21 zhurui1
客户端：
[root@Web-lamp01 ~]# cd /mnt/
[root@Web-lamp01 mnt]# ll
total 4
drwxr-xr-x. 2 nobody nobody 4096 Nov 26 15:19 test
[root@Web-lamp01 mnt]# touch fs.sf
[root@Web-lamp01 mnt]# ll
total 4
-rw-r--r--. 1 nobody nobody 0 Nov 28 12:20 fs.sf
drwxr-xr-x. 2 nobody nobody 4096 Nov 26 15:19 test
[root@Web-lamp01 mnt]# mkdir zhurui
[root@Web-lamp01 mnt]# ls -ld zhurui/
drwxr-xr-x. 2 nobody nobody 4096 Nov 28 12:20 zhurui/
[root@Web-lamp01 mnt]# ll
total 12
-rw-r--r--. 1 nobody nobody 0 Nov 28 12:20 fs.sf
drwxr-xr-x. 2 nobody nobody 4096 Nov 26 15:19 test
drwxr-xr-x. 2 nobody nobody 4096 Nov 28 12:20 zhurui
drwxr-xr-x. 2 nobody nobody 4096 Nov 28 12:21 zhurui1
7.开机自启动
[root@Web-lamp01 mnt]# vim /etc/rc.local
#start up rpcbind services by zhurui 20160226 /etc/init.d/rpcbind start /bin/mount -t nfs 192.168.1.14:/data /mnt
Web-lnmp02客户端部署跟Web-lamp01部署步骤相同，这里就不多加说明
1 1.安装软件
2 [root@Web-lnmp02 ~]# yum -y install nfs-utils rpcbind
3 Loaded plugins: fastestmirror, security
4 Setting up Install Process
5 Loading mirror speeds from cached hostfile
6 * base: mirrors.sina.cn
7 * extras: mirrors.opencas.cn
8 * updates: centos.ustc.edu.cn
9 base | 3.7 kB 00:00
10 extras | 3.4 kB 00:00
11 extras/primary_db | 34 kB 00:00
12 updates | 3.4 kB 00:00
13 2.启动rpcbind
14 [root@Web-lnmp02 ~]# /etc/init.d/rpcbind start
15 Starting rpcbind: [ OK ]
16 [root@Web-lnmp02 ~]#
17 3.配置开机自启动
18 [root@Web-lnmp02 ~]# chkconfig --level 35 rpcbind on
19 [root@Web-lnmp02 ~]# chkconfig --list rpcbind
20 rpcbind 0:off 1:off 2:on 3:on 4:on 5:on 6:off
21 [root@Web-lnmp02 ~]#
22 4.测试服务端共享
23 [root@Web-lnmp02 ~]# showmount -e 192.168.1.14
24 Export list for 192.168.1.14:
25 /data 192.168.1.0/24
26 5.挂载
27 [root@Web-lnmp02 ~]# mount -t nfs 192.168.1.14:/data /mnt
28 [root@Web-lnmp02 ~]# df -h
29 Filesystem Size Used Avail Use% Mounted on
30 /dev/sda3 7.1G 1.5G 5.3G 22% /
31 tmpfs 279M 0 279M 0% /dev/shm
32 /dev/sda1 190M 36M 145M 20% /boot
33 192.168.1.14:/data 7.1G 1.5G 5.3G 22% /mnt
34 6.测试读,写
35 服务器端：
36 [root@NFS-server test]# cd /data/
37 [root@NFS-server data]# ll
38 total 8
39 -rw-r--r--. 1 nfsnobody nfsnobody 0 Nov 28 12:20 fs.sf
40 drwxr-xr-x. 2 nfsnobody nfsnobody 4096 Nov 26 15:19 test
41 drwxr-xr-x. 2 nfsnobody nfsnobody 4096 Nov 28 12:20 zhurui
42 [root@NFS-server data]# mkdir zhurui1
43 [root@NFS-server data]# ll
44 total 12
45 -rw-r--r--. 1 nfsnobody nfsnobody 0 Nov 28 12:20 fs.sf
46 drwxr-xr-x. 2 nfsnobody nfsnobody 4096 Nov 26 15:19 test
47 drwxr-xr-x. 2 nfsnobody nfsnobody 4096 Nov 28 12:20 zhurui
48 drwxr-xr-x. 2 root root 4096 Nov 28 12:21 zhurui1
49 客户端：
50 [root@Web-lnmp02 ~]# cd /mnt/
51 [root@Web-lnmp02 mnt]# ll
52 total 4
53 drwxr-xr-x. 2 nobody nobody 4096 Nov 26 15:19 test
54 [root@Web-lnmp02 mnt]# touch fs.sf
55 [root@Web-lnmp02 mnt]# ll
56 total 4
57 -rw-r--r--. 1 nobody nobody 0 Nov 28 12:20 fs.sf
58 drwxr-xr-x. 2 nobody nobody 4096 Nov 26 15:19 test
59 [root@Web-lnmp02 mnt]# mkdir zhurui
60 [root@Web-lnmp02 mnt]# ls -ld zhurui/
61 drwxr-xr-x. 2 nobody nobody 4096 Nov 28 12:20 zhurui/
62 [root@Web-lnmp02 mnt]# ll
63 total 12
64 -rw-r--r--. 1 nobody nobody 0 Nov 28 12:20 fs.sf
65 drwxr-xr-x. 2 nobody nobody 4096 Nov 26 15:19 test
66 drwxr-xr-x. 2 nobody nobody 4096 Nov 28 12:20 zhurui
67 drwxr-xr-x. 2 nobody nobody 4096 Nov 28 12:21 zhurui1
68 7.开机自启动
69 [root@Web-lnmp02 mnt]# vim /etc/rc.local
70 #start up rpcbind services by zhurui 20160226
71
72 /etc/init.d/rpcbind start
73
74 /bin/mount -t nfs 192.168.1.14:/data /mnt
10.6 mount挂载性能优化参数选项
(1)禁止更新目录及文件时间戳挂载
mount -t nfs -o noatime,nodiratime 192.168.1.14:/data
(2)安全加优化的挂载方式
mount -t nfs -o nosuid,noexec,nodev,noatime,nodiratime,intr,rsize=131072,wsize=131072 192.168.1.14:/data /mnt
(3)默认的挂载方式
mount -t nfs 192.168.1.14:/data /mnt
10.7 NFS内核优化
对应的具体内核优化命令：
cat >>/etc/sysctl.conf<<EOF
net.core.wmem_default = 8388608
net.core.rmem_default = 8388608
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
EOF
执行sysctl -p生效