[SOLVED] Cant access WebGUI on 8006 but SHH works

E

elforelle

New Member
Aug 29, 2025
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Hi All

I did some research but I couldnt find a solution to my problem.
I tried various things but I can not Access my Proxmox on Port 8006 via WebGUI.
I just installed a new Router in my PC room and had to change the static IP of my Proxmox Server.

The Proxmox Server is online, I can ping google successfully, the VM is working.
Also I can access Proxmox with my Mac via SSH on Port 443.
The Router also shows the Server with the correct IP Adress in its device list.

The error message in my browser says: "ERR_ADDRESS_UNREACHABLE"

Any Idea what is wrong?
 
Hey,

what does ip a and cat /etc/network/interfaces say? Can you ping the PVE host?

note: SSH uses port 22, 443 is for HTTPS
 
root@elmuro:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host noprefixroute
valid_lft forever preferred_lft forever
2: enp6s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UP group default qlen 1000
link/ether a8:a1:59:f0:bd:43 brd ff:ff:ff:ff:ff:ff
3: wlp5s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether f4:46:37:30:6f:ba brd ff:ff:ff:ff:ff:ff
4: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether a8:a1:59:f0:bd:43 brd ff:ff:ff:ff:ff:ff
inet 192.168.50.69/32 scope global vmbr0
valid_lft forever preferred_lft forever
inet6 fe80::aaa1:59ff:fef0:bd43/64 scope link
valid_lft forever preferred_lft forever
5: tap103i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr103i0 state UNKNOWN group default qlen 1000
link/ether d6:6f:7f:77:39:cb brd ff:ff:ff:ff:ff:ff
6: fwbr103i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 7a:5c:e7:a8:e0:b3 brd ff:ff:ff:ff:ff:ff
7: fwpr103p0@fwln103i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
link/ether aa:9c:3f:91:44:a6 brd ff:ff:ff:ff:ff:ff
8: fwln103i0@fwpr103p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr103i0 state UP group default qlen 1000
link/ether 7a:5c:e7:a8:e0:b3 brd ff:ff:ff:ff:ff:ff
9: tap104i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master fwbr104i0 state UNKNOWN group default qlen 1000
link/ether d6:06:f5:0f:bd:b1 brd ff:ff:ff:ff:ff:ff
10: fwbr104i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether f6:90:8a:83:3b:a3 brd ff:ff:ff:ff:ff:ff
11: fwpr104p0@fwln104i0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
link/ether 6a:7f:82:ad:1d:78 brd ff:ff:ff:ff:ff:ff
12: fwln104i0@fwpr104p0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master fwbr104i0 state UP group default qlen 1000
link/ether f6:90:8a:83:3b:a3 brd ff:ff:ff:ff:ff:ff


root@elmuro:~# cat /etc/network/interfaces
auto lo
iface lo inet loopback
iface enp6s0 inet manual
auto vmbr0
iface vmbr0 inet static
address 192.168.50.69/32
gateway 192.168.50.1
bridge-ports enp6s0
bridge-stp off
bridge-fd 0
iface wlp5s0 inet manual
source /etc/network/interfaces.d/*

I confused https port with ssh port sry thats embarrassing, thank for the reminder.

Yes I can successfully ping the PVE Host.
 
Last edited:
leesteken said:
192.168.50.69/32 should probably be 192.168.50.69/24, since the gateway is within a /24-block.
Click to expand...
thx, changed it. but still PVE Host is not reachable.
Is it possible that there is a issue with the SSL Certificate?
I didnt configure it nicely I always had an http / https error and entered the WebGUI insecurely.
 
did you ifreload -av after changing it to /24? Just to be sure, but could you also check systemctl status pveproxy, and ss -tulpn | grep 8006?

Is it possible that there is a issue with the SSL Certificate?
I didnt configure it nicely I always had an http / https error and entered the WebGUI insecurely.
Click to expand...
Not really, there is only a UI over HTTPS, there is no HTTP one. What you saw was just a warning about the self-signed certificate, which is expected and fine.
 
Last edited:
I did a reboot and checked it with cat /etc/network/interfaces

root@elmuro:~# systemctl status pveproxy
[B]●[/B] pveproxy.service - PVE API Proxy Server
Loaded: loaded (/lib/systemd/system/pveproxy.service; [B]enabled[/B]; preset: [B]enabled[/B])
Active: [B]active (running)[/B] since Fri 2025-08-29 15:41:19 CEST; 16min ago
Process: 1192 ExecStartPre=/usr/bin/pvecm updatecerts --silent (code=exited, status=0/SUCCESS)
Process: 1195 ExecStart=/usr/bin/pveproxy start (code=exited, status=0/SUCCESS)
Main PID: 1197 (pveproxy)
Tasks: 4 (limit: 37368)
Memory: 155.2M
CPU: 723ms
CGroup: /system.slice/pveproxy.service
├─1197 pveproxy
├─1198 "pveproxy worker"
├─1199 "pveproxy worker"
└─1200 "pveproxy worker"
Aug 29 15:41:18 elmuro systemd[1]: Starting pveproxy.service - PVE API Proxy Server...
Aug 29 15:41:19 elmuro pveproxy[1197]: starting server
Aug 29 15:41:19 elmuro pveproxy[1197]: starting 3 worker(s)
Aug 29 15:41:19 elmuro pveproxy[1197]: worker 1198 started
Aug 29 15:41:19 elmuro pveproxy[1197]: worker 1199 started
Aug 29 15:41:19 elmuro pveproxy[1197]: worker 1200 started
Aug 29 15:41:19 elmuro systemd[1]: Started pveproxy.service - PVE API Proxy Server.


root@elmuro:~# ss -tulpn | grep 8006
tcp LISTEN 0 4096 *:8006 *:* users:(("pveproxy worker",pid=1200,fd=6),("pveproxy worker",pid=1199,fd=6),("pveproxy worker",pid=1198,fd=6),("pveproxy",pid=1197,fd=6))
 
Ok it is working now, I guess leesteken gave the solution. I only changed address 192.168.50.69/32 to address 192.168.50.69/24 in /etc/network/interfaces.d/ rebooted and later entered ifreload -av

Thank you both for your efforts.
 
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