Hi,
On Tue, Nov 21, 2017 at 6:52 AM, Jan Just Keijser <[email protected]> wrote:
> Hi,
>
> On 21/11/17 11:02, Ralf Hildebrandt wrote:
>
>> * Jonathan K. Bullard <[email protected]>:
>>
>>> Hi,
>>>
>>> On Mon, Nov 20, 2017 at 10:16 AM, Ralf Hildebrandt
>>> <[email protected]> wrote:
>>>
>>>> My users primarily user Windows (OpenVPN-GUI), Tunnelblick. We do have
>>>> some Linux users (mainyly using NetworkManager) and even 4 ChromeOS
>>>> users.
>>>>
>>>> Is there any way for me to display informational messages on the
>>>> users's computer when they're loggin in via VPN?
>>>>
>>> Depending on what you mean by "loggin in via VPN". Do you mean
>>> "connecting to the VPN server",
>>>
>> Exactly that.
>>
>> Documentation [1] for the management interface's "echo" command says
>>> "Essentially the echo command allowed us to pass parameters from the
>>> OpenVPN server to the OpenVPN client, and then to the management
>>> client (such as a GUI)."
>>>
>>> Of course it requires the GUI (such as Tunnelblick) to do something
>>> with the "parameters". As far as I know, Tunnelblick doesn't currently
>>> do anything with these "parameters", but I'm open to extending
>>> Tunnelblick to do "something" with them.
>>>
>> ...
>>
>> Does the Windows GUI do anything with these "echo" parameters?
>>>
>> I'll have to test this.
>>
>> 'Core' OpenVPN certainly is not GUI-aware , and the current Windows
> OpenVPN GUI does not do anything with "echo" parameters -
FYI, this not correct. See my response earlier in the thread.
Though nothing yet that would permit sending custom messages from
the server.
It would be useful to add something like this to the Windows GUI (and also
> NetworkManager , perhaps), as in some companies&countries you need a legal
> disclaimer before you start to use a network/application/VPN etc.
Something like a static legal disclaimer is easy -- just display it from
a "pre" script. No further co-operation from the GUI is needed.
For more dynamic stuff, echo could be used to pass short messages
(e.g., a 140 char tweet, not 280 -- something like 240 bytes may be the
max without jumping through some hoops), but currently the Windows GUI
does not pass any such info to scripts. There is a patch in the works to add
echo setenv which could be used to export some variables (after name
mangling)
to the up-script run by the GUI.
Selva
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