Centos6.5部署openvpn账号密码方式登录

server端（路由模式）：

一.网络设置

1.开启服务器端路由转发功能

# vi /etc/sysctl.conf

net.ipv4.ip_forward = 1

# sysctl -p

2.设置nat转发:

注：保证VPN地址池可路由出外网

# iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERAD

3.时间同步：

# ntpdate asia.pool.ntp.org

二.安装依赖库

# yum install -y openssl openssl-devel lzo lzo-devel pam pam-devel automake pkgconfig

三.安装openvpn:

#yum install openvpn

这里我把我的配置贴出来

[root@localhost /etc/openvpn]$ cat /etc/openvpn/server.conf
local 0.0.0.0
port 1194
proto tcp
dev tun
ca /etc/openvpn/easy-rsa-release-2.x/easy-rsa/2.0/keys/ca.crt
cert /etc/openvpn/easy-rsa-release-2.x/easy-rsa/2.0/keys/server.crt
key /etc/openvpn/easy-rsa-release-2.x/easy-rsa/2.0/keys/server.key
dh /etc/openvpn/easy-rsa-release-2.x/easy-rsa/2.0/keys/dh2048.pem
server 10.8.0.0 255.255.255.0
ifconfig-pool-persist /var/log/openvpn/ipp.txt
push "route 172.31.0.0 255.255.0.0"
client-to-client
keepalive 10 120
comp-lzo
persist-key
persist-tun
status openvpn-status.log
log /var/log/openvpn.log
log-append /var/log/openvpn.log
verb 3
client-cert-not-required #不使用客户端证书，使用密码进行验证
username-as-common-name #使用认证用户名，不使用证书
script-security 3
auth-user-pass-verify /etc/openvpn/checkpsw.sh via-env #指定路径，允许登陆的用户名及密码

创建检查账号密码脚本

vim checkpsw.sh

#!/bin/sh
###########################################################
# checkpsw.sh (C) 2004 Mathias Sundman <[e-mail]>
#
# This script will authenticate OpenVPN users against
# a plain text file. The passfile should simply contain
# one row per user with the username first followed by
# one or more space(s) or tab(s) and then the password.

PASSFILE="/etc/openvpn/psw-file"
LOG_FILE="/var/log/openvpn-password.log"
TIME_STAMP=`date "+%Y-%m-%d %T"`

###########################################################

if [ ! -r "${PASSFILE}" ]; then
echo "${TIME_STAMP}: Could not open password file \"${PASSFILE}\" for reading." >> ${LOG_FILE}
exit 1
fi

CORRECT_PASSWORD=`awk '!/^;/&&!/^#/&&$1=="'${username}'"{print $2;exit}' ${PASSFILE}`

if [ "${CORRECT_PASSWORD}" = "" ]; then
echo "${TIME_STAMP}: User does not exist: username=\"${username}\",password=\"${password}\"." >> ${LOG_FILE}
exit 1
fi

if [ "${password}" = "${CORRECT_PASSWORD}" ]; then
echo "${TIME_STAMP}: Successful authentication: username=\"${username}\"." >> ${LOG_FILE}
exit 0
fi

echo "${TIME_STAMP}: Incorrect password: username=\"${username}\",password=\"${password}\"." >> ${LOG_FILE}
exit 1

四.下载easy-rsa:

easy-rsa-release-2.x.zip 网上找到资源，其他的有时候我没有试验成功。

unzip easy-rsa-release-2.x.zip -d /etc/openvpn

cd /etc/openvpn/easy-rsa-release-2.x
cp easy-rsa ../

cd 2.0/

编辑 vars

[root@localhost /etc/openvpn]$ grep -v "^#" easy-rsa-release-2.x/easy-rsa/2.0/vars| grep -v "^$"
export EASY_RSA="`pwd`"
export OPENSSL="openssl"
export PKCS11TOOL="pkcs11-tool"
export GREP="grep"
export KEY_CONfig=`$EASY_RSA/whichopensslcnf $EASY_RSA`
export KEY_DIR="$EASY_RSA/keys"
echo NOTE: If you run ./clean-all,I will be doing a rm -rf on $KEY_DIR
export PKCS11_MODULE_PATH="dummy"
export PKCS11_PIN="dummy"
export KEY_SIZE=2048
export CA_EXPIRE=3650
export KEY_EXPIRE=3650
export KEY_COUNTRY="US"
export KEY_PROVINCE="California"
export KEY_CITY="BJ"
export KEY_ORG="Fort-Funston"
export KEY_EMAIL="[e-mail]"
export KEY_OU="MyOrganizationalUnit"
export KEY_NAME="EasyRSA"

保存推迟后给予x权限

chmod +x vars

./vars

./clean-all #清除文件

./build-ca server #生成服务端

./build-dh

以上生成文件时都可以一路回车过去

生成的文件在/etc/openvpn/easy-rsa-release-2.x/easy-rsa/2.0/keys文件夹中

将ca.crt拷贝到本地

chkconfig openvpn on

/etc/init.d/openvpn restart

client配置：

https://openvpn.net/index.php/open-source/downloads.html

以上路径下载客户端 Windows版本

安装完毕后将路径中sample-config的client.ovpn拷贝到config文件夹中

编辑config文件夹中的client.ovpn

client
dev tun
proto tcp
remote 公网地址 公网端口
resolv-retry infinite
nobind
persist-key
persist-tun
ca ca.crt
#cert user1.crt
#key user1.key
comp-lzo
verb 3
auth-user-pass

编写密码文件：

vi psw-file

client1 123456

chmod 777psw-file

chown nobody.nobody psw-file

重新连接客户端 输入用户名密码即可登录

原文地址：https://www.jb51.cc/centos/376382.html