[SOLVED] Connect to VM by vnc/spice

Y

yonatan1346

New Member
Apr 20, 2020
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Hi,
I want to connect to my machine (currently PROXMOX on VM on my computer) through external VNC and not what's on the site.
When I send the following command to the REST API:


https://pve.proxmox.com/pve-docs/api-viewer/#/nodes/{node}/qemu/{vmid}/vncproxy

I receive the following information:
JSON: 
{"data":{"ticket":"PVEVNC:5EB811CF::YTUMA1+n/HwCpsxnB[...]oMOI6yg==","upid":"UPID:pve:0[...]4:0[...]3:5[...]F:vncproxy:100:root@pam:","port":"5900","user":"root@pam","cert":"-----BEGIN CERTIFICATE-----\\nMIIFzTCCA7WgAwIBAg[...]AC\\n9CJQ+5Yunc45UtlEHzafpX/Aj33w+U4X\\n1g==\\n-----END CERTIFICATE-----\\n"}}

I got a bit stuck, what am I doing from here?
Does anyone know of a Python library or any other way to connect?

Thanks
 
I mostly want to connect to the display and less with a terminal
And I don't want to run it on a computer with Proxmox or start compiling it...
So maybe you know about something else?

Thank you very much
 
oguz said:
hi,

take a look here[0]

you will need to modify your network/firewall settings to allow access from outside

[0]: https://pve.proxmox.com/wiki/VNC_Client_Access
Click to expand...
It works

Now I would like to restrict connection to the VM with a password (and not rewrite it because the VM does a restart) or preferably a certificate.
As I wrote in the beginning, I can send the following command to the rest API:
https://pve.proxmox.com/pve-docs/api-viewer/#/nodes/{node}/qemu/{vmid}/vncproxy
And get a cert

JSON: 
{"data":{"ticket":"PVEVNC:5EB811CF::YTUMA1+n/HwCpsxnB[...]oMOI6yg==","upid":"UPID:pve:0[...]4:0[...]3:5[...]F:vncproxy:100:root@pam:","port":"5900","user":"root@pam","[B]cert[/B]":"-----BEGIN CERTIFICATE-----\\nMIIFzTCCA7WgAwIBAg[...]AC\\n9CJQ+5Yunc45UtlEHzafpX/Aj33w+U4X\\n1g==\\n-----END CERTIFICATE-----\\n"}}

Is it possible to configure the machine such that you can only connect with this cert?
Or am I mistaken about the cert's purpose?

Thanks
 
Last edited:
cert is an ssl certificate to be used in the connection (is the same cert for the https connection to the gui)

as @tim said you can take a look at the spice example to see how it can be accomplished
 
The first option was to use a VNC Client (see: https://pve.proxmox.com/wiki/VNC_Client_Access)
I config the VM in 'Monitor' panel with
Code: 
change vnc 0.0.0.0:100,password
set_password vnc mypassword
expire_password vnc +30
and then using RealVNC I connected to the VM on myproxmoxhost:6000
The problem is that I want to set a fixed password and not rewrite it because the VM does a restart.
Click to expand...

The second option was to use SPICE (see: https://pve.proxmox.com/wiki/SPICE)

I made a short python code that downloads the SPICE runner - This is an unprepared example, but if it helps someone then it is great
(It is base on https://pypi.org/project/proxmoxer/ )
To tun the file spiceconnection.vv you can download virt-viewer from https://virt-manager.org/download/

Python: 
from proxmoxer import ProxmoxAPI

# User params
HOST='192.168.253.155'
USER='root@pam'
PASSWORD='Aa1234'
VERIFY_SSL=False
spicecPath= "spiceconnection.vv"

# Main proxmox object
proxmox = None

def urlCreator(node, vmid, method, proxmoxHost=HOST, formatData="json"):
    return "https://{0}:8006/api2/{1}/nodes/{2}/qemu/{3}/{4}".format(proxmoxHost, formatData, node, vmid, method)

def initProxmox(host, user, password, verify_ssl):
    initproxmox = ProxmoxAPI(host=host, user=user, password=password, verify_ssl=verify_ssl)
    global proxmox
    proxmox = initproxmox

def postRequest(url, data=None, params=None):
    if proxmox:
        resp = proxmox._store["session"].request("POST", url, data, params)
        return resp
    else:
        return None

def startVM(node, vmid):
    url = urlCreator(node=node, vmid=vmid, method="status/start")
    resp = postRequest(url)
    print(resp.content)

def stopVM(node, vmid):
    url = urlCreator(node=node, vmid=vmid, method="status/stop")
    resp = postRequest(url)
    print(resp.content)

def spiceproxyVM(node, vmid):
    url = urlCreator(formatData="spiceconfig", node=node, vmid=vmid, method="spiceproxy")
    resp = postRequest(url, params={"proxy": HOST})
    with open(spicecPath, 'wb') as spiceconfig:
        spiceconfig.write(resp.content)

def statusVMs():
    for vm in proxmox.cluster.resources.get(type='vm'):
        print("{0}. {1} => {2}" .format(vm['vmid'], vm['name'], vm['status']))

def main():
    initProxmox(HOST, USER, PASSWORD, VERIFY_SSL)
    spiceproxyVM('pve', 100)

if __name__ == "__main__":
    main()

My problem with this right now is that this file can be run multiple times
Click to expand...

I haven't checked xterm.js yet

I would love to know if anyone discovered anything that bothered me
 
hello the problem with your script is what contain spiceconnection.vv and your link of spiceconnection.vv is bad
 
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