LXC port not open

[arifroni]

Hello

I installed ubuntu CT. An application is running and listening to 127.0.0.1:5000. But from another machine, I cant hit the API. I checked and found the port is not open on that LXC.

output from proxmox

root@arifroni:~# pct config 100
arch: amd64
cores: 1
cpulimit: 0.5
features: nesting=1
hostname: 3Hustlers
memory: 2048
net0: name=eth0,bridge=vmbr0,gw=192.168.1.1,hwaddr=32:25:98:89:54:E3,ip=192.168.1.217/24,type=veth
onboot: 1
ostype: ubuntu
rootfs: local:100/vm-100-disk-0.raw,size=32G
swap: 2048
unprivileged: 1

Output from LXC

root@3Hustlers:~# 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
       valid_lft forever preferred_lft forever
2: eth0@if22: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 32:25:98:89:54:e3 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 192.168.1.217/24 brd 192.168.1.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::3025:98ff:fe89:54e3/64 scope link
       valid_lft forever preferred_lft forever

root@3Hustlers:~# netstat -tulpn | grep LISTEN
tcp        0      0 127.0.0.53:53           0.0.0.0:*               LISTEN      96/systemd-resolved
tcp        0      0 127.0.0.54:53           0.0.0.0:*               LISTEN      96/systemd-resolved
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      272/master
tcp        0      0 127.0.0.1:5000          0.0.0.0:*               LISTEN      793/python
tcp6       0      0 :::22                   :::*                    LISTEN      1/init
tcp6       0      0 ::1:25                  :::*                    LISTEN      272/master

What could be the issue?

 

[Moayad]

Hi,


This is not a Proxmox VE issue. However, the port is listening on localhost, not for the public network.

 

[arifroni]

Hi,


This is not a Proxmox VE issue. However, the port is listening on localhost, not for the public network.

Is there any way to map these ports to the public network? like, docker?

 

[Moayad]

this depends on the service running inside the CT, or you can use SSH to forward the 5000 port.

 

[arifroni]

this depends on the service running inside the CT, or you can use SSH to forward the 5000 port.

i can ssh into the container. but I don't know how to use ssh to forward port 5000.