Connection refused to all ports when add a private bridge (Ping OK)

arielectron

Member
Aug 31, 2020
2
0
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Hello.

I sell a physical server in "One Provider" and i can't connect to it when finish my desired configuration. I want generate two bridges, one with "public" network and another with "private" network.

Step1:
Reinstall Debian Operative System (the server was use enp4s0 for public access and had enp5s0 unconfigured)
In this step, Debian interface configuration file was:

Code:
auto lo
iface lo inet loopback

auto enp4s0
iface enp4s0 inet dhcp

Step2:
Install proxmox from repositories and add bridge with dhcp and port configuration for enp4s0
In this step, the configuration file is:

Code:
auto lo
iface lo inet loopback

auto enp4s0
iface enp4s0 inet manual

auto vmbr0
iface vmbr0 inet dhcp
    bridge-ports enp4s0
    bridge-stp off
    bridge-fd 0

Step3:
Add new bridge without port configuration for private access

Code:
auto lo
iface lo inet loopback

auto enp4s0
iface enp4s0 inet manual

auto vmbr0
iface vmbr0 inet dhcp
    bridge-ports enp4s0
    bridge-stp off
    bridge-fd 0

auto vmbr1
iface vmbr1 inet static
    address 192.168.5.2/24
    bridge-ports none
    bridge-stp off
    bridge-fd 0

Results
In Step2, all the system work fine, i restart the server and all it's ok.
In Step3, when i press "apply configuration" no return response, the process ifupdown2 never finish... and when restart the server, it response to ping, but i can't connect, all tcp ports return "Connection Refused" (for example ssh: connect to host 192.99.32.56 port 22: Connection refused). In recovery mode, the log file, show that the IP address was correctly assigned and no error.

I was test multiple sequence and diferent configurations, for example, with OVS bridges. The sended configurations are the "correct" based in my experence, but i tested very mutch configurations and sequences, all with same results.

Thanks
Ariel.
 

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