Question : OpenVPN Management Port 7505 telnet problem

Dear Experts,

I have setup the openVPN server and It is working fine in all the way. But after working for some days its management port is not accessible out of the box remotely. I am able to telnet the port on the localhost. It means everything is working fine as earlier. But where is the problem so that i am not able to telnet the port from out of the box or remotely. The openvpn is configured on Centos 5.3.


Thanks in advance.

Vijay Thakur

Answer : OpenVPN Management Port 7505 telnet problem

you said:
"I have setup the openVPN server and It is working fine in all the way. "

it is the same configuration. there is one line in that file, you just need to search for the word "7505"

This is the line I have on one server, at /etc/openvpn/server.conf
# Enable the management interface
management 0.0.0.0 7505

HOWEVER there is a good reason why you should bind your management port to the localhost ip (127.0.0.1): THERE IS NO AUTHENTICATION YET.

please read this:
"The management protocol is currently cleartext without an explicit security
layer.  For this reason, it is recommended that the management interface
either listen on localhost (127.0.0.1) or on the local VPN address.  It's
possible to remotely connect to the management interface over the VPN
itself, though some capabilities will be limited in this mode, such as the
ability to provide private key passwords."

"Future versions of the management interface may allow out-of-band
connections (i.e. not over the VPN) and secured with SSL/TLS."

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Hope that helps
Gabriel