easyrsa配置记录

安装openvpn和easyrsa

sudo apt install openvpn easy-rsa

创建openpn-ca目录和复制程序文件

mkdir openvpn-ca

ln -s /usr/share/easy-rsa/easyrsa ./

ln -s /usr/share/easy-rsa/x509-types ./

cp /usr/share/easy-rsa/openssl-easyrsa.cnf ./

cp /usr/share/easy-rsa/vars.example vars

添加配置到vars文件

set_var EASYRSA_REQ_COUNTRY"US"

set_var EASYRSA_REQ_PROVINCE"CA"

set_var EASYRSA_REQ_CITY"SanFrancisco"

set_var EASYRSA_REQ_ORG"Code Order"

set_var EASYRSA_REQ_EMAIL"724385768\@qq.com"

set_var EASYRSA_REQ_OU"Code Order Unit"

创建用来存储证书、密钥和相关文件的pki目录

./easyrsa init-pki

生成根证书和密钥

./easyrsa build-ca nopass

生成服务器证书和密钥

./easyrsa gen-req server nopass

签署服务器证书

./easyrsa sign server server

生成客户端的证书和密钥

./easyrsa gen-req redmibookpro15 nopass

签署客户端证书

./easyrsa sign client redmibookpro15

生成Diffie-Hellman参数以加强OpenVPN的安全性

./easyrsa gen-dh

生成用于加密控制通道的TLS密钥

openvpn --genkey secret ta.key

服务端配置文件

cat server.conf

port 48385

proto udp

dev tun

ca ca.crt

cert server.crt

key server.key

dh dh.pem

auth SHA256

tls-auth ta.key 0

key-direction 0

server 10.8.0.0 255.255.255.0

ifconfig-pool-persist ipp.txt

#push "redirect-gateway def1 bypass-dhcp"

#push "dhcp-option DNS 8.8.8.8"

#push "dhcp-option DNS 8.8.4.4"

keepalive 10 120

cipher AES-256-CBC

user nobody

group nogroup

persist-key

persist-tun

status openvpn-status.log

verb 3

explicit-exit-notify 1

client-to-client