Centos7、Ubuntu、Debian一键脚本安装Openvpn3-Client，可设置开机自启（全网原创）

声明：脚本为100%原创，参考并优化了官网教程，转载请署名来源

官网教程：https://openvpn.net/cloud-docs/owner/connectors/connector-user-guides/openvpn-3-client-for-linux.html

1.本地新建脚本文件

如本地没有vim，请先安装 Centos: yum install vim  Ubuntu: apt install vim

vim openvpn3_client.sh

输入i进入编辑模式，直接复制以下代码黏贴进去，不用担心代码超长。

写入内容后按Esc退出编辑状态，再输入:wq保存退出。

  1. #!/bin/bash
  2. set -e
  3.  
  4. # 声明
  5. echo -e "安装方法参考官网 https://openvpn.net/cloud-docs/owner/connectors/connector-user-guides/openvpn-3-client-for-linux.html"
  6. echo -e "最后编辑时间 2023/12/28"
  7.  
  8. # 检查操作系统
  9. echo -e "Check operating system version...\n"
  10. echo -e "目前仅支持Centos 7  Ubuntu 18.04 20.04 22.04  Debian 10 11(未测试)"
  11.  
  12. MYOS=""
  13. if [ -f /etc/os-release ]; then
  14.     source /etc/os-release
  15.     if [ "$ID" != "" ] && [ "${VERSION_ID%%.*}" != "" ]; then
  16.         MYOS="$ID ${VERSION_ID%%.*}"
  17.     fi
  18. fi
  19.  
  20. # 输出os结果
  21. if [ "$MYOS" == "" ]; then
  22.     echo -e "您的操作系统: 无法识别\n"
  23. else
  24.     echo -e "您的操作系统: $MYOS\n"
  25. fi
  26.  
  27. # 操作面板
  28. while true; do
  29.     echo ""
  30.     echo "请选择操作："
  31.     echo "1. 安装Openvpn3 Client"
  32.     echo "2. 卸载Openvpn3 Client"
  33.     echo "3. 导入配置文件"
  34.     echo "4. 删除配置文件"
  35.     echo "5. 配置开机自启 [新增/删除]"
  36.     echo "6. 离开"
  37.  
  38.     read -p "请输入选项数字: " choice
  39.  
  40.     case $choice in
  41.         1)
  42.             echo "############################################################"
  43.             echo "Openvpn3 Client开始安装"
  44.             echo "############################################################"
  45.             # centos 7
  46.             if ["$ID" == "centos" ]; then
  47.                 echo "yum update"
  48.                 yum update
  49.  
  50.                 echo "sudo yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm"
  51.                 sudo yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
  52.  
  53.                 echo "sudo yum install -y https://packages.openvpn.net/openvpn-openvpn3-epel-repo-1-1.noarch.rpm"
  54.                 sudo yum install -y https://packages.openvpn.net/openvpn-openvpn3-epel-repo-1-1.noarch.rpm
  55.  
  56.                 echo "sudo yum install openvpn3-client"
  57.                 sudo yum install openvpn3-client
  58.  
  59.                 echo "############################################################"
  60.                 echo "Openvpn3 Client安装完成"
  61.                 echo "############################################################"
  62.             fi
  63.             # ubuntu 18.04 20.04 22.04  Debian 10 11
  64.             if [ "$ID" == "ubuntu" ] || [ "$ID" == "debian" ]; then
  65.                 echo "sudo mkdir -p /etc/apt/keyrings && curl -fsSL https://packages.openvpn.net/packages-repo.gpg | sudo tee /etc/apt/keyrings/openvpn.asc"
  66.                 sudo mkdir -p /etc/apt/keyrings && curl -fsSL https://packages.openvpn.net/packages-repo.gpg | sudo tee /etc/apt/keyrings/openvpn.asc
  67.  
  68.                 echo "DISTRO=\$(lsb_release -c | awk '{print \$2}')"
  69.                 DISTRO=$(lsb_release -c | awk '{print $2}')
  70.  
  71.                 echo 'echo "deb [signed-by=/etc/apt/keyrings/openvpn.asc] https://packages.openvpn.net/openvpn3/debian $DISTRO main" | sudo tee /etc/apt/sources.list.d/openvpn-packages.list'
  72.                 echo "deb [signed-by=/etc/apt/keyrings/openvpn.asc] https://packages.openvpn.net/openvpn3/debian $DISTRO main" | sudo tee /etc/apt/sources.list.d/openvpn-packages.list
  73.  
  74.                 echo "sudo apt update"
  75.                 sudo apt update
  76.  
  77.                 echo "sudo apt install openvpn3"
  78.                 sudo apt install openvpn3
  79.  
  80.                 echo "############################################################"
  81.                 echo "Openvpn3 Client安装完成"
  82.                 echo "############################################################"
  83.             fi
  84.             ;;
  85.         2)
  86.             echo "############################################################"
  87.             echo "Openvpn3 Client开始卸载"
  88.             echo "############################################################"
  89.             # centos 7
  90.             if ["$ID" == "centos" ]; then
  91.                 echo "sudo yum remove openvpn3-client"
  92.                 sudo sudo yum remove openvpn3-client
  93.  
  94.                 echo "sudo yum remove openvpn-openvpn3-epel-repo"
  95.                 sudo sudo yum remove openvpn-openvpn3-epel-repo
  96.  
  97.                 echo "sudo yum remove epel-release"
  98.                 sudo sudo yum remove epel-release
  99.             fi
  100.             # ubuntu 18.04 20.04 22.04  Debian 10 11
  101.             if [ "$ID" == "ubuntu" ] || [ "$ID" == "debian" ]; then
  102.                 echo "sudo apt uninstall openvpn3"
  103.                 sudo apt uninstall openvpn3
  104.                 echo "剩余部分不构成影响, 如有需要请手动删除或重置"
  105.             fi
  106.             echo "############################################################"
  107.             echo "Openvpn3 Client卸载完成"
  108.             echo "############################################################"
  109.             ;;
  110.         3)
  111.             read -ep "请输入配置文件路径: " cpath
  112.             # 检查文件是否存在
  113.             if [ -f "$cpath" ]; then
  114.                 echo "文件存在！"
  115.                 read -p "请输入存储名称 [MainOvpn]: " cname
  116.                 cname=${cname:-MainOvpn}
  117.                 openvpn3 config-import --config "${cpath}" --name "${cname}" --persistent
  118.                 echo -e "导入完成！\n"
  119.                 openvpn3 configs-list
  120.             else
  121.                 echo -e "文件不存在或不可访问！\n"
  122.             fi
  123.             ;;
  124.         4)  
  125.             openvpn3 configs-list
  126.             read -p "请输入配置存储名称: " cname
  127.             echo -e "tips: YES要大写\n"
  128.             openvpn3 config-remove --config "${cname}"
  129.  
  130.             echo -e "删除完成！\n"
  131.             openvpn3 configs-list
  132.             ;;
  133.         5)
  134.             read -p "请输入服务名称 [openvpn3-client]: " sname
  135.             sname=${sname:-openvpn3-client}
  136.             # 检查文件是否存在
  137.             if [ -f "/etc/systemd/system/${sname}.service" ]; then
  138.                 read -p "服务已存在！是否要移除该服务 [yes/No]: " remove_service
  139.                 if [ "$remove_service" == "yes" ] || [ "$remove_service" == "y" ]; then
  140.                     # 处理移除服务的逻辑
  141.                     echo -e "\n开始禁用服务 ${sname}"
  142.                     systemctl stop "${sname}.service"
  143.                     systemctl disable "${sname}.service"
  144.                     echo -e "\n开始删除服务 ${sname}"
  145.                     rm "/etc/systemd/system/${sname}.service"
  146.                 fi
  147.             else
  148.                 read -p "请输入配置存储名称 [MainOvpn]: " cname
  149.                 cname=${cname:-MainOvpn}
  150.                 
  151.                 echo -e "\n开始创建 Systemd 服务单元文件"
  152.                 cat <<EOF | sudo tee "/etc/systemd/system/${sname}.service" >/dev/null
  153. [Unit]
  154. Description=OpenVPN 3 Auto Start
  155. After=network.target
  157. [Service]
  158. Type=simple
  159. ExecStart=/usr/bin/openvpn3 session-start --config "${cname}"
  161. # 如果需要重试或自动重启，可以添加以下指令
  162. Restart=always
  163. RestartSec=3
  165. [Install]
  166. WantedBy=multi-user.target
  167. EOF
  168.                 echo -e "服务单元文件创建成功 /etc/systemd/system/${sname}.service"
  169.                 echo -e "您的服务名为 ${sname}.service"
  170.                 # 启用并启动自定义的 Systemd 服务
  171.                 echo -e "\n开始启用服务 ${sname}"
  172.                 echo -e "\n如Openvpn3 Client中设置了-互联网流量转发-, 软件启动后很可能导致ssh、远程连接断开！！！"
  173.                 read -p "并因为开机自启无法重置, 是否接受该风险 [yes/No]" append_risk
  174.                 if [ "$append_risk" == "yes" ] || [ "$append_risk" == "y" ]; then
  175.                     sudo systemctl start "${sname}.service"
  176.                     sudo systemctl enable "${sname}.service"
  177.                 fi
  178.             fi
  179.             ;;
  180.         6)
  181.             echo "退出"
  182.             break  # 结束循环，退出脚本
  183.             ;;
  184.         *)
  185.             echo "无效选项，请重新选择"
  186.             ;;
  187.     esac
  188. done
  189.  
  190.

2.添加执行权限

chmod +x openvpn3_client.sh

3.运行脚本

./openvpn3_client.sh

4.安装步骤

  • 先安装Openvpn3 Client客户端

  • 再导入Openvpn配置文件
    (由Openvpn Server端生成，不懂的小伙伴网上搜`Openvpn Server安装`)
  • 最后设置开机自启，会自动在/etc/systemd/system中生成服务单元文件，随开机启动

5.脚本运行错误原因

Windows格式文件的换行符为\r\n ,而Unix&Linux文件的换行符为\n.dos2unix是将Windows格式文件转换为Unix、Linux格式的实用命令。 dos2unix命令其实就是将文件中的\r\n 转换为\n。

Centos安装指令：

  1. $ sudo apt install dos2unix
  2.

Debian、Ubuntu安装指令：

  1. $ sudo apt-get install dos2unix
  2.

使用dos2unix

  1. $ dos2unix [options] 
  2.

注：本文转载自blog.csdn.net的Dawn0days的文章"https://blog.csdn.net/weixin_52096670/article/details/135277286"。版权归原作者所有，此博客不拥有其著作权，亦不承担相应法律责任。如有侵权，请联系我们删除。
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