Access to the tangobox from outside

# 3 years ago
JCM	Hello, I have a windows machine on which I installed Tango and a tangobox 9.2 (VirtualBox) I would like to use Tango clients on my machine with the tangobox server. I managed to configure so that the machine communicates with the tangobox (ping, astor ..). The problem is that I can't access the Starter and Device Servers which are in the docker containers :( (Screenshot attached). I also tried with another linux machine, made a local network with the container IPs (172.xxx), modified the /etc/hosts file in a container … maybe an authorization problem … I am not an expert in docker … Is it possible ? If so, does anyone have an idea? Thank you Attachments: 189Kb

# 3 years ago

Hello,

I have a windows machine on which I installed Tango and a tangobox 9.2 (VirtualBox)
I would like to use Tango clients on my machine with the tangobox server.
I managed to configure so that the machine communicates with the tangobox (ping, astor ..).
The problem is that I can't access the Starter and Device Servers which are in the docker containers :(
(Screenshot attached).

I also tried with another linux machine, made a local network with the container IPs (172.xxx), modified the /etc/hosts file in a container … maybe an authorization problem …
I am not an expert in docker …

Is it possible ? If so, does anyone have an idea? Thank you

# 3 years ago
Reynald	I think you can refer to this section of the documentation to start and stop the docker containers on the TangoBox: https://tango-controls.readthedocs.io/en/latest/installation/vm/tangobox.html#container-switch-on-off The docker containers might not be started? docker start tangobox-com should do the trick to start tangobox-com docker container. Rosenberg's Law: Software is easy to make, except when you want it to do something new. Corollary: The only software that's worth making is software that does something new.

# 3 years ago

Reynald

I think you can refer to this section of the documentation to start and stop the docker containers on the TangoBox:
https://tango-controls.readthedocs.io/en/latest/installation/vm/tangobox.html#container-switch-on-off

The docker containers might not be started?

docker start tangobox-com should do the trick to start tangobox-com docker container.

Rosenberg's Law: Software is easy to make, except when you want it to do something new.
Corollary: The only software that's worth making is software that does something new.

# 3 years ago
JCM	Hello, the docker containers are all started in the tangobox. It is when I am on an external machine that I see them not started, with for example Astor: the leds are red (starter and DS not accessible) Thank you.

# 3 years ago
pgoryl	Hi @JCM, Sorry for the late answer. You need to enable forwarding on the Tangobox: `sudo sysctl net.ipv4.conf.all.forwarding=1 sudo iptables -P FORWARD ACCEPT` This should be added to some startup script as it does not stay between restarts. Remember to use a bridged network on the Virtualbox network settings. See the attached screenshots. Then the setup needs a proper network configuration with a proper route added to the 2nd machine. I have tested this with the following IPs provided manually: TangoBox: IP: 172.19.0.1/16, GW: 172.19.0.1 2nd machine: IP: 172.19.0.2/16, GW: 172.19.0.1 Manually added route: 172.18.0.1/16 via 172.18.0.1 All the best, Piotr Edited 3 years ago Attachments:

# 3 years ago

pgoryl

Hi @JCM,

Sorry for the late answer. You need to enable forwarding on the Tangobox:

sudo sysctl net.ipv4.conf.all.forwarding=1
sudo iptables -P FORWARD ACCEPT

This should be added to some startup script as it does not stay between restarts.

Remember to use a bridged network on the Virtualbox network settings. See the attached screenshots.

Then the setup needs a proper network configuration with a proper route added to the 2nd machine.

I have tested this with the following IPs provided manually:
TangoBox:
IP: 172.19.0.1/16, GW: 172.19.0.1

2nd machine:
IP: 172.19.0.2/16, GW: 172.19.0.1
Manually added route: 172.18.0.1/16 via 172.18.0.1

All the best,
Piotr

Edited 3 years ago

# 3 years ago
JCM	Great, thank you Piotr. You gave me the solution Cheers.