#!/bin/bash

: <<DESCProgram:NFS Server install

1 判断是否为root

root_user(){

[ $UID -ne 0 ] && { echo "请使用root用户";exit 1; }}

2 判断是否能连接到Internet

con_internet(){

ping -c2 mirrors.aliyun.com &>/dev/null[ $? -ne 0 ] && { echo "无法连接到Internet";exit 1; }}

3 SELINUX是否关闭

selinux_cls(){

if [ getenforce != "Disabled" ];thensetenforce 0sed -ir 's/^(SELINUX=).*/\1disabled/' /etc/sysconfig/selinuxfi}

4 IPTABLES是否关闭

iptables_cls(){

if ! /etc/init.d/iptables status|grep -q 'not running';then/etc/init.d/iptables stopchkconfig iptables offfi}

5 yum修改

yum_mod(){

if ! grep -q aliyun /etc/yum.repos.d/CentOS-Base.repo;then\cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.reop.bakwget -O /etc/yum.repos./CentOS-Base.reop fi}

6 install NFS Server

ins_nfs(){

if [ rpm -aq rpcbind nfs-utils|wc -l -lt 2 ];thenyum install -y rpcbind nfs-utils &>/dev/nullif [ $? -ne 0 ];thenecho "NFS Server install fail"exit 1fi/etc/init.d/rpcbind start &>/dev/null/etc/init.d/nfs start &>/dev/nullfiif [ netstat -lntup|egrep "rpcbind|nfs"|wc -l -lt 6 ];thenaction "NFS Server install..." /bin/fasleelseaction "NFS Server install..." /bin/truefi}

7 配置 /etc/exports 文档，NFS Server默认目录设置为 /nfsnobody

nfs_conf(){

[ -d /nfsnobody ] || mkdir /nfsnobodychown -R nfsnobody:nfsnobody /nfsnobodyif [ -s /etc/exports ];thenecho '/nfsnobody 192.168.0.0/24(rw,all_squash,sync)' >>/etc/exportselseecho '/nfsnobody 192.168.0.0/24(rw,all_squash,sync)' >/etc/exportsfiexportfs -r &>/dev/null}

8 优化NFS，设置 /etc/sysctl.conf 文档

sysctl_opt(){

default=$(sysctl -a|grep "[rw]mem_default"|awk '{print $NF}')max=$(sysctl -a|grep "[rw]mem_max"|awk '{print $NF}')if [ "$default" != "8388608 8388608" -a "$max" != "16777216 16777216" ];thencat >>/etc/sysctl.conf<<EOFnet.core.rmem_default = 8388608net.core.wmem_default = 8388608net.core.rmem_max = 16777216net.core.wmem_max = 16777216EOFsysctl -p &>/dev/nullfi}

9 把NFS Server开机启动放置到 /etc/rc.local

nfs_boot_start(){

if [ egrep "(rpcbind|nfs) start" /etc/rc.local|wc -l -lt 2 ];thenecho -e "\n#nfs server 20171129\n/etc/init.d/rpcbind start\n/etc/init.d/nfs start" >>/etc/rc.localfi}

main(){

root_usercon_internetselinux_clsiptables_clsyum_modins_nfsnfs_confsysctl_optnfs_boot_start}main