unik with virtualbox and qemu in aliyun ECS

[windshomexf]

I build a unik image follow
https://github.com/solo-io/unik/blob/master/docs/getting_started_cpp.md,but I encountered some problems：
（1）I build unik in a ECS buy from aliyun,so I cannot use GUI client,only bash-shell,so the virtualbox config is difficult, can I get some document config it by shell command,use VBoxManage?
(2)I config virtualbox with "VBoxManage hostonlyif ipconfig vboxnet0 --dhcp " command,I receive the following error message:
VBoxManage: error: Code NS_ERROR_NOT_IMPLEMENTED (0x80004001) - Not implemented (extended info not available)
VBoxManage: error: Context: "EnableDynamicIPConfig ()" at line 225 of file VBoxManageHostonly.cpp
Can I use other command config it?

(3)when I use other command config VirtualBox, so i use "unik daemon", I receive error "Vt-x is not enabled VT-x Is Not Available (VERR_VMX_NO_VMX)",because my computwe is a Aliyun ECS,so I cannot modify BIOS support VT-x, but what can I do for it?

(4)I change from virtualbox to qemu,follow qemu.md，I build image success.but when I use unix daemon command ,and unik run command ,use unik instances,I cannot see IP adress for this instance. is there any config I forget before I start unik daemon for provider qemu, such as config dhcp,ipaddress.

(5)who can tell me if I build a qemu image,or virtualbox,can I start it without unik daemon ,only in virtualbox or qemu,such as a new virtualbox install in a windows? what do I need do for it?