Connection failed after new installation VE 7.3

M

menschmarkus

New Member
Apr 1, 2021
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Hi,

I am still new in this field and run in a problem I do not know how to solve so I need some assistance

Actual status
I have a XEON CPU based server. I want to setup a new proxmox VE so I installed VE 7.3. While launching the system it gives me information about actual IP address the server is connected (192.168.1.xx)
During installation you are askes for some network information. So far so good but ist gives me a different room for the IP address which does not correspond to the IP address room from connection (proposed IP: 192.168.100.2/24). So If I use this I do not have any chance to connect the server from my 192.168.1.xx/ network address room so I changed it to the same address I was informed by the server itself (e.g. 192.168.1.44). To follow the logic I changed Gateway and DNS address to 192.168.1.1 of proxmox setup which points to my rooter. I think until this point I did not anything wrong.
Following installation was running without any problem. Rebooting was no problem. There is still a monitor and keyboard connected to the server. After rebooting it seems proxmox is starting without any problems. I logged in as root with my given pw and checked with
Code: 
ip a
the IP address which shows the given one (here: 192.168.1.44)
With
Code: 
ip r
I checked the correct Gateway IP which is OK.
Now I tried to connet to proxmox Webinterface by typing from my local PC
Code: 
https://192.168.1.44:8006/
. As result I always get in browser the message ERR_CONNECTION_REFUSED.
I tried to ping 192.168.1.44 with success so the ip is reachable.
I tried to connect from my local PC to the server with
Code: 
ssh root@192.168.1.44
but after registering the key entering the necessary password fails. OK this may happen because of restrictions for remote connections.

So my question is, what happened here and how can I access to the web interface to go on with proxmox installation
 
menschmarkus said:
So If I use this I do not have any chance to connect the server from my 192.168.1.xx/ network address room so I changed it to the same address I was informed by the server itself (e.g. 192.168.1.44).
Click to expand...
Can you clarify this statement? Did you use an IP that was already in use elsewhere? All IPs on the network need to be unique, but they must be in the same subnet or have appropriate routing in place.
If you duplicated an IP address, then you either need to shutdown the other machine and then login to PVE to change the IP, or access PVE physical console to change its IP.

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
 
Can you clarify this statement? Did you use an IP that was already in use elsewhere? All IPs on the network need to be unique, but they must be in the same subnet or have appropriate routing in place.
If you duplicated an IP address, then you either need to shutdown the other machine and then login to PVE to change the IP, or access PVE physical console to change its IP.
Click to expand...
The server IP is unique. It was in a first step given by the rooter via DHCP and is now fixed to this machine. So no other device can get this IP (here 192.168.1.44)
 
In a fresh installation there are no restrictions on SSH from remote host. If you are unable to connect to GUI port and SSH does not accept your password, then most likely you are connecting to wrong machine.
Shutdown PVE and check if you still "can" ssh. If you do - then you have duplicate IP.
Otherwise, if IP is indeed correct but you cant ssh as root because you dont know the password, perhaps the easiest approach is for you to reinstall the system and pay attention to configuration values.

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
 
In the meantime based on above information I contacted the manufacturer of the server.
I found out, that there is a special RJ45 network connector to support the server itself. It is a dedicated maintenance connector. Unfortunately this is the one I plugged in the network cable. No surprise any longer that I run in these problems.
I replugged the Network cable to the public Network connector and reinstalled proxmox with new IPs and, what a surprise, it instantly was working well.
I thank all repliers for the patience and the usefull replies.
I surely will come back to this forum if I have further questions.

Thanks
 
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