{"id":52,"date":"2024-08-20T11:06:27","date_gmt":"2024-08-20T03:06:27","guid":{"rendered":"https:\/\/cnsn.rr.nu\/?p=52"},"modified":"2024-08-20T11:06:27","modified_gmt":"2024-08-20T03:06:27","slug":"ipsec%e4%bc%a0%e8%be%93%e6%a8%a1%e5%bc%8f%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/blog.cnsn.fun\/?p=52","title":{"rendered":"IPsec\u4f20\u8f93\u6a21\u5f0f\u914d\u7f6e"},"content":{"rendered":"

\u5728Linux\u670d\u52a1\u5668\u4e0a\u914d\u7f6eIPsec\u670d\u52a1\u7aef<\/h3>\n

1. \u5b89\u88c5\u5fc5\u8981\u7684\u8f6f\u4ef6<\/h4>\n

\u9996\u5148\uff0c\u5b89\u88c5strongSwan<\/code>\u6765\u7ba1\u7406\u548c\u914d\u7f6eIPsec\u3002<\/p>\n

sudo apt-get update\nsudo apt-get install strongswan<\/code><\/pre>\n
2. \u914d\u7f6eIPsec<\/h4>\n
\u4fee\u6539\/etc\/ipsec.conf<\/code>\u6587\u4ef6\uff0c\u914d\u7f6eIPsec\u670d\u52a1\u7aef\u3002<\/p>\n
config setup\n    charondebug="ike 2, knl 2, cfg 2"\n\nconn windows-connection\n    authby=secret\n    auto=add\n    left=%defaultroute  # \u672c\u5730\u4e3b\u673aIP\uff0c\u53ef\u4ee5\u4f7f\u7528%defaultroute\u81ea\u52a8\u68c0\u6d4b\n    leftid=@server.example.com  # \u53ef\u9009\uff0c\u6307\u5b9a\u670d\u52a1\u7aefID\n    right=192.168.1.2  # \u8fdc\u7a0bWindows\u5ba2\u6237\u7aefIP\n    rightid=@client.example.com  # \u53ef\u9009\uff0c\u6307\u5b9a\u5ba2\u6237\u7aefID\n    type=transport\n    esp=aes256-sha256-modp2048\n    ike=aes256-sha256-modp2048\n    keyexchange=ikev2\n    dpdaction=clear  # \u6b7b\u5bf9\u7b49\u68c0\u6d4b\n    dpddelay=30s\n    dpdtimeout=120s<\/code><\/pre>\n
3. \u914d\u7f6e\u9884\u5171\u4eab\u5bc6\u94a5<\/h4>\n
\u5728\/etc\/ipsec.secrets<\/code>\u6587\u4ef6\u4e2d\u914d\u7f6e\u9884\u5171\u4eab\u5bc6\u94a5\uff08PSK\uff09\uff1a<\/p>\n
@server.example.com @client.example.com : PSK "your_pre_shared_key"<\/code><\/pre>\n
4. \u542f\u52a8IPsec\u670d\u52a1<\/h4>\n
\u542f\u52a8\u5e76\u542f\u7528IPsec\u670d\u52a1\uff1a<\/p>\n
sudo systemctl start strongswan\nsudo systemctl enable strongswan<\/code><\/pre>\n
5. \u9a8c\u8bc1\u914d\u7f6e<\/h4>\n
\u4f7f\u7528ipsec status<\/code>\u547d\u4ee4\u67e5\u770bIPsec\u8fde\u63a5\u7684\u72b6\u6001\uff1a<\/p>\n
sudo ipsec status<\/code><\/pre>\n
\u5728Windows\u5ba2\u6237\u7aef\u4e0a\u914d\u7f6eIPsec\u5ba2\u6237\u7aef<\/h3>\n
1. \u6253\u5f00\u201c\u7f51\u7edc\u548c\u5171\u4eab\u4e2d\u5fc3\u201d<\/h4>\n
\u901a\u8fc7\u201c\u63a7\u5236\u9762\u677f\u201d\u6253\u5f00\u201c\u7f51\u7edc\u548c\u5171\u4eab\u4e2d\u5fc3\u201d\u3002<\/p>\n
2. \u521b\u5efa\u65b0\u7684VPN\u8fde\u63a5<\/h4>\n
    \n
  1. \u70b9\u51fb\u201c\u8bbe\u7f6e\u65b0\u7684\u8fde\u63a5\u6216\u7f51\u7edc\u201d\u3002<\/li>\n
  2. \u9009\u62e9\u201c\u8fde\u63a5\u5230\u5de5\u4f5c\u533a\u201d\uff0c\u7136\u540e\u70b9\u51fb\u201c\u4e0b\u4e00\u6b65\u201d\u3002<\/li>\n
  3. \u9009\u62e9\u201c\u4f7f\u7528\u6211\u7684Internet\u8fde\u63a5(VPN)\u201d\u3002<\/li>\n<\/ol>\n
    3. \u914d\u7f6eVPN\u8fde\u63a5<\/h4>\n
      \n
    1. \u5728\u201cInternet\u5730\u5740\u201d\u5b57\u6bb5\u4e2d\u8f93\u5165Linux\u670d\u52a1\u5668\u7684IP\u5730\u5740\u3002<\/li>\n
    2. \u5728\u201c\u76ee\u6807\u540d\u79f0\u201d\u5b57\u6bb5\u4e2d\u8f93\u5165\u4e00\u4e2a\u540d\u79f0\uff0c\u4f8b\u5982\u201cIPsec VPN\u201d\u3002<\/li>\n
    3. \u70b9\u51fb\u201c\u521b\u5efa\u201d\u3002<\/li>\n<\/ol>\n
      4. \u914d\u7f6eVPN\u5c5e\u6027<\/h4>\n
        \n
      1. \u5728\u201c\u7f51\u7edc\u548c\u5171\u4eab\u4e2d\u5fc3\u201d\u4e2d\u627e\u5230\u521a\u521a\u521b\u5efa\u7684VPN\u8fde\u63a5\uff0c\u70b9\u51fb\u201c\u66f4\u6539\u9002\u914d\u5668\u8bbe\u7f6e\u201d\u3002<\/li>\n
      2. \u53f3\u952e\u70b9\u51fb\u65b0\u521b\u5efa\u7684VPN\u8fde\u63a5\uff0c\u9009\u62e9\u201c\u5c5e\u6027\u201d\u3002<\/li>\n
      3. \u5728\u201c\u5b89\u5168\u201d\u9009\u9879\u5361\u4e2d\uff0c\u8bbe\u7f6e\u5982\u4e0b\uff1a\n
          \n
        • VPN\u7c7b\u578b\uff1a\u9009\u62e9\u201cIKEv2\u201d\u3002<\/li>\n
        • \u6570\u636e\u52a0\u5bc6\uff1a\u9009\u62e9\u201c\u9700\u8981\u52a0\u5bc6\uff08\u65ad\u5f00\u8fde\u63a5\u5982\u679c\u670d\u52a1\u5668\u62d2\u7edd\uff09\u201d\u3002<\/li>\n<\/ul>\n<\/li>\n
        • \u70b9\u51fb\u201c\u9ad8\u7ea7\u8bbe\u7f6e\u201d\uff0c\u9009\u62e9\u201c\u4f7f\u7528\u9884\u5171\u4eab\u5bc6\u94a5\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u201d\uff0c\u7136\u540e\u8f93\u5165\u4e0e\u4f60\u5728Linux\u670d\u52a1\u5668\u4e0a\u914d\u7f6e\u7684PSK\u76f8\u540c\u7684\u9884\u5171\u4eab\u5bc6\u94a5\u3002<\/li>\n<\/ol>\n
          5. \u914d\u7f6eIPsec\u8bbe\u7f6e<\/h4>\n
            \n
          1. \u5728\u201c\u5b89\u5168\u201d\u9009\u9879\u5361\u4e2d\uff0c\u70b9\u51fb\u201cIPsec\u8bbe\u7f6e\u201d\u3002<\/li>\n
          2. \u786e\u4fdd\u542f\u7528\u4e86\u201c\u4f7f\u7528IPsec\u8fdb\u884c\u6b64VPN\u8fde\u63a5\u201d\u3002<\/li>\n
          3. \u8f93\u5165\u9884\u5171\u4eab\u5bc6\u94a5\u3002<\/li>\n<\/ol>\n
            6. \u8fde\u63a5\u5230VPN<\/h4>\n
              \n
            1. \u5728\u201c\u7f51\u7edc\u548c\u5171\u4eab\u4e2d\u5fc3\u201d\u4e2d\uff0c\u627e\u5230\u521a\u521a\u521b\u5efa\u7684VPN\u8fde\u63a5\u3002<\/li>\n
            2. \u70b9\u51fb\u201c\u8fde\u63a5\u201d\uff0c\u8f93\u5165VPN\u7528\u6237\u540d\u548c\u5bc6\u7801\uff08\u5982\u679c\u9700\u8981\uff09\uff0c\u7136\u540e\u8fde\u63a5\u3002<\/li>\n<\/ol>\n
              \u5728window\u4e0bqt\u7a0b\u5e8f\u4e2d\u7684\u914d\u7f6e<\/h3>\n
              \u5728Windows\u4e0a\u4f7f\u7528QT\u7a0b\u5e8f\u5b9e\u73b0IPsec\u914d\u7f6e\uff0c\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528Windows API\u6216\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u6765\u5b8c\u6210\u3002\u8fd9\u9700\u8981\u5bf9Windows\u7f51\u7edc\u914d\u7f6eAPI\u6709\u6240\u4e86\u89e3\uff0c\u4ee5\u53ca\u5982\u4f55\u901a\u8fc7QT\u8c03\u7528\u8fd9\u4e9bAPI\u6216\u6267\u884c\u547d\u4ee4\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528QT\u7a0b\u5e8f\u6765\u914d\u7f6eIPsec\u8fde\u63a5\u3002<\/p>\n
              1.\u6b65\u9aa4\u6982\u8ff0<\/h4>\n
                \n
              1. \u4f7f\u7528QT\u521b\u5efa\u4e00\u4e2a\u57fa\u672c\u7684GUI\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n
              2. \u901a\u8fc7QT\u8c03\u7528Windows\u547d\u4ee4\u884c\u914d\u7f6eVPN\u8fde\u63a5\u3002<\/li>\n
              3. \u914d\u7f6eIPsec\u76f8\u5173\u8bbe\u7f6e\u3002<\/li>\n<\/ol>\n
                2.\u521b\u5efa\u57fa\u672c\u7684QT\u5e94\u7528\u7a0b\u5e8f<\/h4>\n
                \u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2aQT Widget\u5e94\u7528\u7a0b\u5e8f\u3002\u5728QT Creator\u4e2d\uff0c\u9009\u62e9\u201cNew Project\u201d->\u201cApplication\u201d->\u201cQT Widgets Application\u201d\u3002<\/p>\n
                3.\u754c\u9762\u8bbe\u8ba1<\/h4>\n
                \u4f7f\u7528QT Designer\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u754c\u9762\uff0c\u5305\u62ec\uff1a<\/p>\n
                  \n
                • \u4e00\u4e2a\u6587\u672c\u6846\uff0c\u7528\u4e8e\u8f93\u5165\u670d\u52a1\u5668IP\u5730\u5740\u3002<\/li>\n
                • \u4e00\u4e2a\u6587\u672c\u6846\uff0c\u7528\u4e8e\u8f93\u5165\u9884\u5171\u4eab\u5bc6\u94a5\u3002<\/li>\n
                • \u4e00\u4e2a\u6309\u94ae\uff0c\u7528\u4e8e\u63d0\u4ea4\u914d\u7f6e\u3002<\/li>\n<\/ul>\n
                  4.\u4e3b\u7a97\u53e3\u4ee3\u7801<\/h4>\n
                  \u4fee\u6539\u4e3b\u7a97\u53e3\u7684\u5934\u6587\u4ef6\uff08mainwindow.h<\/code>\uff09\uff1a<\/p>\n
                  #ifndef MAINWINDOW_H\n#define MAINWINDOW_H\n\n#include <QMainWindow>\n\nnamespace Ui {\nclass MainWindow;\n}\n\nclass MainWindow : public QMainWindow\n{\n    Q_OBJECT\n\npublic:\n    explicit MainWindow(QWidget *parent = nullptr);\n    ~MainWindow();\n\nprivate slots:\n    void on_connectButton_clicked();\n    void on_disconnectButton_clicked();\n\nprivate:\n    Ui::MainWindow *ui;\n    void configureIPsec(const QString &serverIp, const QString &psk);\n    void disconnectIPsec();\n};\n\n#endif \/\/ MAINWINDOW_H<\/code><\/pre>\n
                  \u4fee\u6539\u4e3b\u7a97\u53e3\u7684\u6e90\u6587\u4ef6\uff08mainwindow.cpp<\/code>\uff09\uff1a<\/p>\n
                  #include "mainwindow.h"\n#include "ui_mainwindow.h"\n#include <QProcess>\n#include <QMessageBox>\n\nMainWindow::MainWindow(QWidget *parent) :\n    QMainWindow(parent),\n    ui(new Ui::MainWindow)\n{\n    ui->setupUi(this);\n\n    \/\/ Connect the disconnect button signal to the slot\n    connect(ui->disconnectButton, &QPushButton::clicked, this, &MainWindow::on_disconnectButton_clicked);\n}\n\nMainWindow::~MainWindow()\n{\n    \/\/ Ensure IPsec connection is closed on exit\n    disconnectIPsec();\n    delete ui;\n}\n\nvoid MainWindow::on_connectButton_clicked()\n{\n    QString serverIp = ui->serverIpTextBox->text();\n    QString psk = ui->pskTextBox->text();\n\n    if (serverIp.isEmpty() || psk.isEmpty()) {\n        QMessageBox::warning(this, "Input Error", "Please enter both server IP and PSK.");\n        return;\n    }\n\n    configureIPsec(serverIp, psk);\n}\n\nvoid MainWindow::on_disconnectButton_clicked()\n{\n    disconnectIPsec();\n    QMessageBox::information(this, "VPN Disconnection", "IPsec VPN has been disconnected.");\n}\n\nvoid MainWindow::configureIPsec(const QString &serverIp, const QString &psk)\n{\n    QString connectionName = "IPsecVPN";\n    QString createVpnCmd = QString("powershell -Command \\"Add-VpnConnection -Name '%1' -ServerAddress '%2' -TunnelType IKEv2 -AuthenticationMethod MachineCertificate -EncryptionLevel Required -PassThru\\"")\n                            .arg(connectionName).arg(serverIp);\n\n    QProcess::execute(createVpnCmd);\n\n    QString setPreSharedKeyCmd = QString("powershell -Command \\"Set-VpnConnectionIPsecConfiguration -ConnectionName '%1' -AuthenticationTransformConstants GCMAES128 -CipherTransformConstants GCMAES256 -EncryptionMethod GCMAES256 -IntegrityCheckMethod SHA256 -DHGroup Group14 -PfsGroup PFS2048 -PassThru -EncryptionType Require -PreSharedKey '%2'\\"")\n                                 .arg(connectionName).arg(psk);\n\n    QProcess::execute(setPreSharedKeyCmd);\n\n    QString connectVpnCmd = QString("powershell -Command \\"rasdial %1\\"").arg(connectionName);\n    QProcess::execute(connectVpnCmd);\n\n    QMessageBox::information(this, "VPN Configuration", "IPsec VPN has been configured and connected.");\n}\n\nvoid MainWindow::disconnectIPsec()\n{\n    QString connectionName = "IPsecVPN";\n    QString disconnectVpnCmd = QString("powershell -Command \\"rasdial %1 \/disconnect\\"").arg(connectionName);\n    QProcess::execute(disconnectVpnCmd);\n\n    QString removeVpnCmd = QString("powershell -Command \\"Remove-VpnConnection -Name '%1' -Force\\"").arg(connectionName);\n    QProcess::execute(removeVpnCmd);\n}<\/code><\/pre>\n
                  5.\u754c\u9762\u6587\u4ef6\u4fee\u6539<\/h4>\n
                  \u4fee\u6539\u754c\u9762\u6587\u4ef6\uff08mainwindow.ui<\/code>\uff09\uff1a<\/p>\n
                    \n
                  1. \u6dfb\u52a0\u4e24\u4e2aQLineEdit<\/code>\u63a7\u4ef6\uff0c\u7528\u4e8e\u8f93\u5165\u670d\u52a1\u5668IP\u5730\u5740\u548c\u9884\u5171\u4eab\u5bc6\u94a5\uff0c\u5206\u522b\u547d\u540d\u4e3aserverIpTextBox<\/code>\u548cpskTextBox<\/code>\u3002<\/li>\n
                  2. \u6dfb\u52a0\u4e24\u4e2aQPushButton<\/code>\u63a7\u4ef6\uff0c\u7528\u4e8e\u63d0\u4ea4\u914d\u7f6e\u4ee5\u53ca\u5173\u95ed\u8fde\u63a5\uff0c\u547d\u540d\u4e3aconnectButton<\/code>\u548cdisconnectButton<\/code>\u3002<\/li>\n<\/ol>\n
                    6.\u5f02\u5e38\u5904\u7406<\/h4>\n
                    \u4e3a\u4e86\u786e\u4fdd\u5728\u7a0b\u5e8f\u5f02\u5e38\u9000\u51fa\u65f6\u4e5f\u80fd\u65ad\u5f00IPsec\u8fde\u63a5\uff0c\u53ef\u4ee5\u901a\u8fc7QT\u7684\u4fe1\u53f7\u4e0e\u69fd\u673a\u5236\u6355\u6349\u5e94\u7528\u7a0b\u5e8f\u7684\u5173\u95ed\u4e8b\u4ef6\u3002<\/p>\n
                    \u5728\u4e3b\u7a97\u53e3\u7684\u6784\u9020\u51fd\u6570\u4e2d\u6dfb\u52a0\u5982\u4e0b\u4ee3\u7801\u4ee5\u6355\u6349\u5173\u95ed\u4e8b\u4ef6\uff1a<\/p>\n
                    cpp\u590d\u5236\u4ee3\u7801MainWindow::MainWindow(QWidget *parent) :\n    QMainWindow(parent),\n    ui(new Ui::MainWindow)\n{\n    ui->setupUi(this);\n\n    \/\/ Connect the disconnect button signal to the slot\n    connect(ui->disconnectButton, &QPushButton::clicked, this, &MainWindow::on_disconnectButton_clicked);\n\n    \/\/ Handle application close event\n    connect(QApplication::instance(), &QCoreApplication::aboutToQuit, this, &MainWindow::disconnectIPsec);\n}<\/code><\/pre>\n
                    7.\u6743\u9650\u7ba1\u7406<\/h4>\n
                    \u786e\u4fdd\u4ee5\u7ba1\u7406\u5458\u8eab\u4efd\u8fd0\u884c\u7a0b\u5e8f\uff0c\u56e0\u4e3a\u6dfb\u52a0VPN\u8fde\u63a5\u548c\u914d\u7f6eIPsec\u9700\u8981\u7ba1\u7406\u5458\u6743\u9650\u3002<\/p>\n
                    8.\u4ee3\u7801\u8bf4\u660e<\/h4>\n
                      \n
                    1. QProcess::execute<\/code>\u7528\u4e8e\u6267\u884c\u547d\u4ee4\u884c\u6307\u4ee4\u3002\u6211\u4eec\u4f7f\u7528PowerShell\u547d\u4ee4\u6765\u6dfb\u52a0VPN\u8fde\u63a5\u548c\u914d\u7f6eIPsec\u3002<\/li>\n
                    2. Add-VpnConnection<\/code> PowerShell\u547d\u4ee4\u7528\u4e8e\u521b\u5efaVPN\u8fde\u63a5\u3002<\/li>\n
                    3. Set-VpnConnectionIPsecConfiguration<\/code> PowerShell\u547d\u4ee4\u7528\u4e8e\u914d\u7f6eIPsec\u7684\u9884\u5171\u4eab\u5bc6\u94a5\u548c\u52a0\u5bc6\u8bbe\u7f6e\u3002<\/li>\n
                    4. rasdial<\/code>\u547d\u4ee4\u7528\u4e8e\u8fde\u63a5VPN\u3002<\/li>\n<\/ol>\n
                      9.\u5b8c\u6210<\/h4>\n
                      \u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528QT\u7a0b\u5e8f\u5728Windows\u4e0a\u914d\u7f6eIPsec VPN\u8fde\u63a5\u3002\u8fd9\u4e2a\u793a\u4f8b\u5c55\u793a\u4e86\u57fa\u672c\u7684\u5b9e\u73b0\u601d\u8def\uff0c\u5b9e\u9645\u5e94\u7528\u4e2d\u53ef\u80fd\u9700\u8981\u6839\u636e\u5177\u4f53\u9700\u6c42\u8fdb\u884c\u8c03\u6574\u548c\u6269\u5c55\u3002<\/p>\n
                      \u9a8c\u8bc1\u8fde\u63a5<\/h3>\n
                      \u5728\u6210\u529f\u8fde\u63a5\u540e\uff0c\u4f60\u53ef\u4ee5\u5728Windows\u5ba2\u6237\u7aef\u4e0a\u4f7f\u7528ping<\/code>\u6216\u5176\u4ed6\u7f51\u7edc\u5de5\u5177\u6765\u6d4b\u8bd5\u4e0eLinux\u670d\u52a1\u5668\u7684\u8fde\u63a5\u3002\u4f60\u8fd8\u53ef\u4ee5\u5728Linux\u670d\u52a1\u5668\u4e0a\u4f7f\u7528ipsec status<\/code>\u6765\u67e5\u770b\u8fde\u63a5\u72b6\u6001\u548c\u6d3b\u52a8\u4f1a\u8bdd\u3002<\/p>\n
                      \u989d\u5916\u6ce8\u610f\u4e8b\u9879<\/h3>\n
                        \n
                      1. \u9632\u706b\u5899\u914d\u7f6e<\/strong>\uff1a\u786e\u4fddLinux\u670d\u52a1\u5668\u7684\u9632\u706b\u5899\u5141\u8bb8IPsec\u76f8\u5173\u7684\u6d41\u91cf\uff08\u4f8b\u5982UDP 500\u548c4500\u7aef\u53e3\u7528\u4e8eIKE\uff0cESP\u534f\u8bae\u6d41\u91cf\uff09\u3002<\/li>\n
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