KVM:VNC 连接被阻止

KVM:VNC 连接被阻止

我正在运行带有三个客户端虚拟机的 KVM 主机。两个 ubuntu 服务器和一个 windows server r2 2008。

所有三台虚拟机都在其 XML 配置文件中启用了 VNC 选项:

<graphics type='vnc' port='5910' autoport='no' listen='0.0.0.0' keymap='de'>
  <listen type='address' address='0.0.0.0'/>
</graphics>

<graphics type='vnc' port='5911' autoport='no' listen='0.0.0.0' keymap='de'>
  <listen type='address' address='0.0.0.0'/>
</graphics>

<graphics type='vnc' port='5912' autoport='no' listen='0.0.0.0' keymap='de'>
  <listen type='address' address='0.0.0.0'/>
</graphics>

并且在启动时打开给定的端口:

user@kvm-host:~$ netstat -tpln
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN      1061/rpcbind
tcp        0      0 192.168.100.1:53        0.0.0.0:*               LISTEN      2811/dnsmasq
tcp        0      0 0.0.0.0:5269            0.0.0.0:*               LISTEN      1844/beam
tcp        0      0 0.0.0.0:5910            0.0.0.0:*               LISTEN      4497/qemu-system-x8
tcp        0      0 0.0.0.0:40758           0.0.0.0:*               LISTEN      1844/beam
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1680/sshd
tcp        0      0 0.0.0.0:5911            0.0.0.0:*               LISTEN      4532/qemu-system-x8
tcp        0      0 0.0.0.0:5912            0.0.0.0:*               LISTEN      2844/qemu-system-x8
tcp        0      0 0.0.0.0:5280            0.0.0.0:*               LISTEN      1844/beam
tcp        0      0 0.0.0.0:5281            0.0.0.0:*               LISTEN      1844/beam
tcp        0      0 0.0.0.0:38724           0.0.0.0:*               LISTEN      1131/rpc.statd
tcp        0      0 0.0.0.0:5222            0.0.0.0:*               LISTEN      1844/beam
tcp6       0      0 :::111                  :::*                    LISTEN      1061/rpcbind
tcp6       0      0 :::4369                 :::*                    LISTEN      1753/epmd
tcp6       0      0 :::22                   :::*                    LISTEN      1680/sshd
tcp6       0      0 :::52896                :::*                    LISTEN      1131/rpc.statd

我已经向 iptables 添加了一条规则:

sudo iptables -L
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:5911
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:5910
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:5912

但我无法通过 vnc 远程连接!我可以通过 telnet 连接到本地主机的 5910 端口。本地 telnet 连接返回 RFB 003.008。但从外部连接时,连接超时。

我能做些什么?

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