linux - Ubuntu 20.04 - VPN 连接失败 - 找不到源连接

Question

我希望通过 VPN 将我的 Ubuntu 与托管在 Windows Server 上的 VPN 服务器连接起来，VPN 的配置是 100% 正确的，我认为我的 Ubuntu 服务器有一些问题。
在 Ubuntu 上我托管 PLESK，我尝试通过 VPN (SSTP) 连接，但在日志中我有这样的注释:

Apr 29 08:10:00 upbeat-blackburn NetworkManager[1016]: <info>  [1619680200.7047] audit: op="connection-activate" uuid="009d51b6-a348-4cc6-bcd7-a62cfe51e3b7" name="VPN Gateway" pid=21051 uid=0 result="fail" reason="Could not find source connection."

更多关于服务器:
ip -a

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group defaul                                    t qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group de                                    fault qlen 1000
    link/ether 00:50:56:34:81:a4 brd ff:ff:ff:ff:ff:ff
    inet {IP}/32 brd {IP} scope global dynamic ens192
       valid_lft 29318sec preferred_lft 29318sec
    inet6 fe80::250:56ff:fe34:81a4/64 scope link
       valid_lft forever preferred_lft forever
3: ham0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1404 qdisc fq_codel state UNKNOWN                                     group default qlen 1000
    link/ether 7a:79:19:44:d3:d4 brd ff:ff:ff:ff:ff:ff
    inet {IP}/8 brd 25.255.255.255 scope global ham0
       valid_lft forever preferred_lft forever
    inet6 2620:9b::1944:d3d4/96 scope global
       valid_lft forever preferred_lft forever
    inet6 fe80::7879:19ff:fe44:d3d4/64 scope link
       valid_lft forever preferred_lft forever

nmcli 设备状态

DEVICE  TYPE      STATE      CONNECTION
ens192  ethernet  unmanaged  --
lo      loopback  unmanaged  --
ham0    tun       unmanaged  --

网络统计 -rn

Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         10.255.255.1    0.0.0.0         UG        0 0          0 ens192
10.255.255.1    0.0.0.0         255.255.255.255 UH        0 0          0 ens192
25.0.0.0        0.0.0.0         255.0.0.0       U         0 0          0 ham0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 ens192

和/etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo ens192
iface lo inet loopback

# The primary network interface
allow-hotplug ens192
iface ens192 inet dhcp
iface ens192 inet6 manual
      pre-up sleep 5
      up dhclient -6 -nw -v ens192
      down dhclient -6 -r -v ens192

我希望这是理解我的问题所需的所有信息。我不知道如何排序

Answer 1

输入 nmtui 并通过那里设置您的连接