☰

唤醒时自动重新连接 VPN

tag-icon • tag-icon linux-mint sleep
唤醒时自动重新连接 VPN

当我唤醒计算机时，互联网会自动重新连接，但 VPN 不会。
是否可以使其自动重新连接（使用 KDE 上的网络管理器，或者至少以网络管理器知道是否通过 VPN 连接的方式）？

答案1

我在 Ubuntu 论坛上找到了这个解决方案（例如，这里）：

  1. 以提升的权限启动文本编辑器。例如，在命令提示符下输入：

    gksudo gedit

    您需要以提升的权限运行编辑器，因为您将文件保存在无法使用“正常”访问级别进行更改的文件夹中。

  2. 创建一个名为 的文件autovpn并将其保存在目录中/etc/NetworkManager/dispatcher.d。在此autovpn文件中，放置以下代码：

    #!/usr/bin/python

import sys
import os
import dbus
import gobject
from  dbus.mainloop.glib import DBusGMainLoop

# The uuid of the VPN connection to activate
VPN_CONNECTION_UUID = "FILL IN YOUR OWN"

# The uuid of the connection that needs to be active to start the VPN connection
ACTIVE_CONNECTION_UUID = "FILL IN YOUR OWN"

# some service, path and interface constants
NM_DBUS_SERVICE                   = "org.freedesktop.NetworkManager"
NM_DBUS_PATH                      = "/org/freedesktop/NetworkManager"
NM_DBUS_INTERFACE                 = "org.freedesktop.NetworkManager"
NM_DBUS_IFACE_CONNECTION_ACTIVE   =   "org.freedesktop.NetworkManager.Connection.Active"
NM_DBUS_SERVICE_SYSTEM_SETTINGS   = "org.freedesktop.NetworkManagerSystemSettings"
NM_DBUS_SERVICE_USER_SETTINGS     = "org.freedesktop.NetworkManagerUserSettings"
NM_DBUS_IFACE_SETTINGS            = "org.freedesktop.NetworkManagerSettings"
NM_DBUS_PATH_SETTINGS             = "/org/freedesktop/NetworkManagerSettings"
NM_DBUS_IFACE_SETTINGS_CONNECTION = "org.freedesktop.NetworkManagerSettings.Connection"

DBusGMainLoop(set_as_default=True)

nm_dbus_settings_services = (NM_DBUS_SERVICE_SYSTEM_SETTINGS,    NM_DBUS_SERVICE_USER_SETTINGS)

def get_connections(bus, service):
proxy = bus.get_object(service, NM_DBUS_PATH_SETTINGS)
iface = dbus.Interface(proxy, dbus_interface=NM_DBUS_IFACE_SETTINGS)
return iface.ListConnections()

def get_connection_by_uuid(bus, uuid):
  for service in nm_dbus_settings_services:
   for c in get_connections(bus, service):
     proxy = bus.get_object(service, c)
     iface = dbus.Interface(proxy, dbus_interface = NM_DBUS_IFACE_SETTINGS_CONNECTION)
     settings = iface.GetSettings()
       if settings['connection']['uuid'] == uuid:
         return (c, service)
    return None

  def list_uuids(bus):
  for service in nm_dbus_settings_services:
   for c in get_connections(bus, service):
proxy = bus.get_object(service, c)
iface = dbus.Interface(proxy, dbus_interface=NM_DBUS_IFACE_SETTINGS_CONNECTION)
settings = iface.GetSettings()
conn = settings['connection']
print " %s: %s - %s (%s)" % (service, conn['uuid'], conn['id'], conn['type'])

     def get_active_connection_path(bus, uuid):
     proxy = bus.get_object(NM_DBUS_SERVICE, NM_DBUS_PATH)
     iface = dbus.Interface(proxy, dbus_interface='org.freedesktop.DBus.Properties')
     active_connections = iface.Get(NM_DBUS_INTERFACE, 'ActiveConnections')
     connection_and_service = get_connection_by_uuid(bus, uuid)
    if connection_and_service == None:
     return None
    for a in active_connections:
    proxy = bus.get_object(NM_DBUS_SERVICE, a)
    iface = dbus.Interface(proxy, dbus_interface='org.freedesktop.DBus.Properties')
    path = iface.Get(NM_DBUS_IFACE_CONNECTION_ACTIVE, 'Connection')
    service = iface.Get(NM_DBUS_IFACE_CONNECTION_ACTIVE, 'ServiceName')
    if service != connection_and_service[1]:
    continue
    proxy = bus.get_object(connection_and_service[1], path)
    iface = dbus.Interface(proxy, dbus_interface=NM_DBUS_IFACE_SETTINGS_CONNECTION)
    settings = iface.GetSettings()
    if settings['connection']['uuid'] == uuid:
    return a
    return None

   def activate_connection(bus, vpn_connection, active_connection):
   def reply_handler(opath):
   print "<<SUCCESS>>"
   sys.exit(0)
   def error_handler(*args):
   print "<<FAILURE>>"
   sys.exit(1)
   proxy = bus.get_object(NM_DBUS_SERVICE, NM_DBUS_PATH)
   iface = dbus.Interface(proxy, dbus_interface=NM_DBUS_INTERFACE)
   iface.ActivateConnection(NM_DBUS_SERVICE_USER_SETTINGS,
                   vpn_connection[0],
                   dbus.ObjectPath("/"), 
                   active_connection,
                   reply_handler=reply_handler,
                   error_handler=error_handler)

    bus = dbus.SystemBus()

    #print "connections:"
    #list_uuids(bus)

    if len(VPN_CONNECTION_UUID) < 1 or len(ACTIVE_CONNECTION_UUID) < 1:
    print "you need to set the uuids"
    sys.exit(0)

    vpn_connection = get_connection_by_uuid(bus, VPN_CONNECTION_UUID)
    if not vpn_connection:
     print "Configured VPN connection is not known to NM, check VPN_CONNECTION_UUID."
    sys.exit(1)

    active_connection = get_connection_by_uuid(bus, ACTIVE_CONNECTION_UUID)
    if not active_connection:
     print "Configured active connection is not known to NM, check ACTIVE_CONNECTION_UUID."
     sys.exit(1)

    if get_active_connection_path(bus, VPN_CONNECTION_UUID) != None:
    print "VPN connection already activated"
    sys.exit(0)

    active_connection_path = get_active_connection_path(bus, ACTIVE_CONNECTION_UUID)
    if not active_connection_path:
    print "The required connection isn't active at the moment"
    sys.exit(0)

    print "connecting...." # to:\n  '%s'\nwith active connection:\n  '%s'" % (vpn_connection, active_connection)

    activate_connection(bus, vpn_connection, active_connection_path)

    loop = gobject.MainLoop()
    loop.run()

  3. 转到命令提示符。运行以下命令：

      nmcli con status

    记下给定的 UUID 值，例如，将它们复制并粘贴到文本文件中。

  4. 返回autovpn脚本：填写您要使用的 VPN 连接的 UUID，以及在连接到 VPN 之前必须处于活动状态的连接。

    对于大多数用户来说，第二个是默认网络连接，通常是有线以太网连接。

    请注意，UUID 值对于您的系统来说是唯一的。但是，他们不应该在登录之间进行更改，否则此脚本将无法工作。以下是我看到的，供大家参考：

    $ nmcli con status
NAME                      UUID                                   DEVICES    DEFAULT  VPN
Wired connection 1        e9908d28-ffec-41cd-babb-c0cefb38ae6a   eth0       yes      no
VPN Connection            699f17f2-0ab0-4d1d-94d3-24136ef81603   --         no       yes

  5. 保存 autovpn文件。

  6. 注销并重新登录或重新启动。一旦您的常规网络连接打开，您的 VPN 连接就会立即激活。

    下一步：实现脚本自动检测VPN是否仍然连接，如果没有则重新连接。

希望这对您有一些帮助。

相关内容