Re: [Qemu-devel] Why got no response of vnc?

[Sam <batmanustc@gmail.com>]

No firewall, as another vm could be connect by vnc, this is the start
command used by that vm, and the disk(*.img) is copied from other place.

$QEMU -smp 4 -m 4096 -enable-kvm $SCRIPT_PATH/$IMG -cdrom $CD -daemonize
-vnc 0.0.0.0:2520 \
 -chardev
socket,id=char-$IF,path=/usr/local/var/run/openvswitch/$IF,server=on \
 -netdev type=vhost-user,id=$IF,chardev=char-$IF \
 -device virtio-net-pci,mac=00:00:af:07:03:02,netdev=$IF \
 -object memory-backend-file,id=mem,size=4096M,mem-path=$MEM_PATH,share=on \
 -numa node,memdev=mem -mem-prealloc \
 -chardev socket,path=$SCRIPT_PATH/qga.sock,server,nowait,id=qga0 \
 -device virtio-serial \
 -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 \
 -incoming tcp:0:80818

2017-08-25 16:21 GMT+08:00 Thomas Huth <thuth@redhat.com>:

> On 25.08.2017 08:31, Sam wrote:
> > Hi all,
> >
> > I'm starting vm using:
> >
> > kvm]$ sudo /usr/local/bin/qemu-system-x86_64 -m 256 -hda test.qcow2
> -cdrom
> >> CentOS-7-x86_64-DVD-1503-01.iso -boot d
> >> VNC server running on '127.0.0.1:5900'
> >
> > then I start vnc client in another PC to connect 10.253.23.24:11800 and
> > 10.253.23.24:5900, I got time out, why?
>
> Do you have a firewall running on the host system? It might be blocking
> the VNC connection - in that case you could use port forwarding of ssh
> (the -L parameter for example), or try to reconfigure your firewall on
> the host.
>
>  Thomas
>
>
> PS: Don't forget to specify --enable-kvm in case you want to use
> hardware virtualization.
>
>
>