Access custom Port on new VM

[coreattack]

Hey guys, I recently wanted to switch to Proxmox and I am struggeling with connecting to my services.

What is working:

• VM is running and can be accessed via noVNC in the Proxmox web interface
• Proxmox host can be SSH into
• VM can be SSH into
• I can access http (p80) so I can see my nginx success page
• ping to vm and host

What is not working:

• VM ports like 19999 (netdata) and nearly every other port to another PC in Network
• Custom port from one VM to another

What have I done so far:

• Disable all Firewalls in Proxmox (I think. I have a Datacenter, Host and VM specific Firewall turned off)
• I have no LAN Firewall
• changed Hosts File on VM but reversed it because nothing came of it

Further Information:

• VM is a debian based linux (DietPi)
• Proxmox OS installed on a clean Test machine

Should you need any further info just ask, I will reply as soon as possible

Edit: Everything I forgot will be put here so you do not have to read through this whole thread in case it gets longer

What is working:

• Internet access
• The service I want to reach is running
• I could reach the service with a Desktop Environment on the VM under 127.0.0.1:19999 but not 192.168.2.159:19999

What is not working:

What I have done so far:

• verify the service is running by testing it on a clone with desktop environment

Further Information:

• I am quite certain there is no firewall on the VM itself

 

[cheiss]

Hi,

VM is a debian based linux (DietPi)

Have you checked if maybe a firewall is running directly inside the VM? E.g. ufw
Secondly, is the Netdata service running (successfully)?

What does nmap -p19999 <ip-of-target-vm> report?

 

[coreattack]

Hi,


Have you checked if maybe a firewall is running directly inside the VM? E.g. ufw
Secondly, is the Netdata service running (successfully)?

What does nmap -p19999 <ip-of-target-vm> report?

Hi, thank you for your reply. I will add the following statements in my top post as well for better context.
I have worked with dietpi before and everything works fine on non-VM bases. I am fairly sure there is no firewall which would restrict that access directly on the VM. I do not know about the nmap command but i cloned the VM and put a desktop environment on the second one (which is also running netdata) and i could get to that page via 127.0.0.1:19999 and it worked. Also these VMs can get to the Internet if that is important