Let us take a closer how to access your proxmox windows vm from rdp and the configurations associated with it with the assistance of our Proxmox support services at Bobcares.

Proxmox Installation

The first step to access the proxmox windows VM from RDP is to enable RDP and virtual machine access for the Proxmox installation.

Use the command given below to, backup the current /etc/network/interfaces:

cp /etc/network/interfaces /etc/network/interfaces.backup

Download it to the computer. We might need it later for debugging. Then, as seen below, we must configure the /etc/network/interfaces file:

### Hetzner Online GmbH installimage source /etc/network/interfaces.d/*
auto lo
iface lo inet loopback
iface lo inet6 loopback

The following three things will be present in the command when we open this file for the first time. Depending on the service provider we may not be needed to change anything in this section as step to access the proxmox windows vm from rdp.

$IP - user IP address. $GT - user network gateway. $NT - user network netmask. # $RT is the user network route. It consists of the first three IP numbers and the last one from the netmask.

For example, if we have an IP address of 111.2.33.4 and a netmask of 255.255.255.666, the RT will be 111.2.33.666.

auto eno1
iface eno1 inet static
address $IP
netmask $NT
gateway $GT
up route add -net $RT netmask $NT gw $GT dev eno1

Here we will have the default IPv6 settings. If there is no need to customize IPv6 access for the Proxmox then leave the default settings.

iface eno1 inet6 static
address aaaa:bbb:ccc:ddd::2
netmask 64
gateway eeee::1

Setup Network Interface for accessing the proxmox windows vm from rdp

The next step is to access the Network interface. Go through the command given below to set up a new network interface for the virtual machines.

auto vmbr1
iface vmbr1 inet static
address 192.168.1.1
netmask 255.255.255.0
bridge_ports none
bridge_stp off
bridge_fd 0
post-up echo 1 > /proc/sys/net/ipv4/ip_forward
post-up iptables -t nat -A POSTROUTING -s '192.168.1.0/24' -o eno1 -j MASQUERADE
post-down iptables -t nat -D POSTROUTING -s '192.168.1.0/24' -o eno1 -j MASQUERADE

Now we must save this file and enable the previously built custom network interface. To accomplish this, use the following command:

ifup vmbr1

To use RDP on the virtual Windows OS system, we must implement the following port forwarding rule for the default 3389 Windows RDP port for accessing Proxmox windows VM from the DP:

iptables -t nat -A PREROUTING -i eno1 -p tcp --dport 13389 -j DNAT --to 192.168.1.2:3389

Use that as a model for any other port or application. Now to use RDP with the virtual Ubuntu OS system, we must first set up the following environment:

apt-get -y update
apt-get -y install openssh-server
apt-get -y install xrdp
apt-get -y install mate-core mate-desktop-environment mate-notification-daemon
echo -e "mate-session" >> /etc/xrdp/startwm.sh
service xrdp restart
iptables -t nat -A PREROUTING -i eno1 -p tcp --dport 23389 -j DNAT --to 192.168.1.4:3389

Here we added 2 to the 3389 port to make the Ubuntu OS accessible at $IP:23399.

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Conclusion

To conclude it is easy to access the Proxmox windows VM from the DP and we have gone through a complete set of instructions on how to do it with the support of our Proxmox support services.