Re: [Openvpn-users] 2.4.0 , address on tun inteface problem after reconnect to another server, linux

2017-01-26 Thread Dmitry Melekhov
26.01.2017 15:31, debbie10t пишет:
>
> On 26/01/17 07:10, Dmitry Melekhov wrote:
>> 26.01.2017 10:59, Gert Doering пишет:
>>> Hi,
>>>
>>> On Thu, Jan 26, 2017 at 09:54:59AM +0400, Dmitry Melekhov wrote:
 Could you tell me is this expected behavior and, if yes, is there any
 workaround , something like dhcp-release for windows?
>>> This is a bug - on SIGUSR1 reconnect with --persist-tun, if options change
>>> (like: "new IP address") these is wrongly ignored.
>>>
>>> This is trac #812, and it was already fixed - to be released as part of
>>> 2.4.1 "soon" (in the coming weeks).
>>>
>>> gert
>> Thank you!
>>
>> I'll try to patch and rebuild 2.4.0.
> Curiosity got me ..
>
> Do you need --persist-* on your client ?
Really, no, there is no desperate need in it in this particular case :-)

On the other hand ,  there is no contra, at least I don't see any...

>
> Or is it an option added by a config generator tool ?
> EG: Network-manager
>
> I would recommend reading the manual for each of the options your client
> does use and deciding what is actually necessary.

Thank you for hint, I run openvpn since 2005 and never thought about 
reading manual ;-)



--
Check out the vibrant tech community on one of the world's most
engaging tech sites, SlashDot.org! http://sdm.link/slashdot
___
Openvpn-users mailing list
Openvpn-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/openvpn-users


Re: [Openvpn-users] 2.4.0 , address on tun inteface problem after reconnect to another server, linux

2017-01-26 Thread debbie10t


On 26/01/17 07:10, Dmitry Melekhov wrote:
> 26.01.2017 10:59, Gert Doering пишет:
>> Hi,
>>
>> On Thu, Jan 26, 2017 at 09:54:59AM +0400, Dmitry Melekhov wrote:
>>> Could you tell me is this expected behavior and, if yes, is there any
>>> workaround , something like dhcp-release for windows?
>> This is a bug - on SIGUSR1 reconnect with --persist-tun, if options change
>> (like: "new IP address") these is wrongly ignored.
>>
>> This is trac #812, and it was already fixed - to be released as part of
>> 2.4.1 "soon" (in the coming weeks).
>>
>> gert
>
> Thank you!
>
> I'll try to patch and rebuild 2.4.0.

Curiosity got me ..

Do you need --persist-* on your client ?

Or is it an option added by a config generator tool ?
EG: Network-manager

I would recommend reading the manual for each of the options your client 
does use and deciding what is actually necessary.


--
Check out the vibrant tech community on one of the world's most
engaging tech sites, SlashDot.org! http://sdm.link/slashdot
___
Openvpn-users mailing list
Openvpn-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/openvpn-users


Re: [Openvpn-users] 2.4.0 , address on tun inteface problem after reconnect to another server, linux

2017-01-26 Thread Dmitry Melekhov
26.01.2017 16:43, debbie10t пишет:
>
> On 26/01/17 11:55, Dmitry Melekhov wrote:
>> 26.01.2017 15:31, debbie10t пишет:
>>> On 26/01/17 07:10, Dmitry Melekhov wrote:
 26.01.2017 10:59, Gert Doering пишет:
> Hi,
>
> On Thu, Jan 26, 2017 at 09:54:59AM +0400, Dmitry Melekhov wrote:
>> Could you tell me is this expected behavior and, if yes, is there any
>> workaround , something like dhcp-release for windows?
> This is a bug - on SIGUSR1 reconnect with --persist-tun, if options change
> (like: "new IP address") these is wrongly ignored.
>
> This is trac #812, and it was already fixed - to be released as part of
> 2.4.1 "soon" (in the coming weeks).
>
> gert
 Thank you!

 I'll try to patch and rebuild 2.4.0.
>>> Curiosity got me ..
>>>
>>> Do you need --persist-* on your client ?
>> Really, no, there is no desperate need in it in this particular case :-)
>>
>> On the other hand ,  there is no contra, at least I don't see any...
> Other than the problem you are currently experiencing ..
>
> --persist-* is necessary if you are dropping privileges.
> (I am not aware of any other reason)


And? Any reasons I can't drop privileges on server which provides 
LAN-to-LAN link, although it acts as openvpn client?
And yes, I can not use it, because it is not server, so it has less 
security problems.
So situation is absolutely as I wrote before- no desperate need.


>
>>> Or is it an option added by a config generator tool ?
>>> EG: Network-manager
>>>
>>> I would recommend reading the manual for each of the options your client
>>> does use and deciding what is actually necessary.
>> Thank you for hint, I run openvpn since 2005 and never thought about
>> reading manual ;-)
> I presume you are ribbing me ;-)
You are right :-P ;-)

>
> OTOH, you would not be the first to march blindly into the fray !

No, you started fray by assuming I did not read man .
>
> It might be interesting to know the difference in hits between
> the official docs and, for example, a wordpress or Pi tutorial ..

Well, I don't remember which tutorial I used more then 10 years ago :-(

> Regards


Fortunately this was known bug and now it is fixed on my servers :-)
And I see no reasons to discuss do I use or not user and group in config,
AFAIR, this is information I can't share according to internal policy ;-)

Thank you!



--
Check out the vibrant tech community on one of the world's most
engaging tech sites, SlashDot.org! http://sdm.link/slashdot
___
Openvpn-users mailing list
Openvpn-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/openvpn-users


Re: [Openvpn-users] 2.4.0 , address on tun inteface problem after reconnect to another server, linux

2017-01-26 Thread debbie10t


On 26/01/17 11:55, Dmitry Melekhov wrote:
> 26.01.2017 15:31, debbie10t пишет:
>>
>> On 26/01/17 07:10, Dmitry Melekhov wrote:
>>> 26.01.2017 10:59, Gert Doering пишет:
 Hi,

 On Thu, Jan 26, 2017 at 09:54:59AM +0400, Dmitry Melekhov wrote:
> Could you tell me is this expected behavior and, if yes, is there any
> workaround , something like dhcp-release for windows?
 This is a bug - on SIGUSR1 reconnect with --persist-tun, if options change
 (like: "new IP address") these is wrongly ignored.

 This is trac #812, and it was already fixed - to be released as part of
 2.4.1 "soon" (in the coming weeks).

 gert
>>> Thank you!
>>>
>>> I'll try to patch and rebuild 2.4.0.
>> Curiosity got me ..
>>
>> Do you need --persist-* on your client ?
> Really, no, there is no desperate need in it in this particular case :-)
>
> On the other hand ,  there is no contra, at least I don't see any...

Other than the problem you are currently experiencing ..

--persist-* is necessary if you are dropping privileges.
(I am not aware of any other reason)

>
>>
>> Or is it an option added by a config generator tool ?
>> EG: Network-manager
>>
>> I would recommend reading the manual for each of the options your client
>> does use and deciding what is actually necessary.
>
> Thank you for hint, I run openvpn since 2005 and never thought about
> reading manual ;-)

I presume you are ribbing me ;-)

OTOH, you would not be the first to march blindly into the fray !

It might be interesting to know the difference in hits between
the official docs and, for example, a wordpress or Pi tutorial ..

Regards

--
Check out the vibrant tech community on one of the world's most
engaging tech sites, SlashDot.org! http://sdm.link/slashdot
___
Openvpn-users mailing list
Openvpn-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/openvpn-users


Re: [Openvpn-users] Clarification on auth-gen-token and 2FA

2017-01-26 Thread Gert Doering
Hi,

On Thu, Jan 26, 2017 at 07:36:32PM +0100, David Sommerseth wrote:
> Anyhow ... quick-fix/workaround: Don't use --auth-nocache

What happens if you have --auth-nocache, the server sends a token, and
the token expires?  Will the client get something back that it can
understand as "oh, I need to ask for a new password!"?

(Sorry, I know I *should* have tested this long ago... :-) )

gert

-- 
USENET is *not* the non-clickable part of WWW!
   //www.muc.de/~gert/
Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informatik.tu-muenchen.de


signature.asc
Description: PGP signature
--
Check out the vibrant tech community on one of the world's most
engaging tech sites, SlashDot.org! http://sdm.link/slashdot___
Openvpn-users mailing list
Openvpn-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/openvpn-users


Re: [Openvpn-users] Clarification on auth-gen-token and 2FA

2017-01-26 Thread Gert Doering
Hi,

On Fri, Jan 27, 2017 at 12:02:21AM +0100, David Sommerseth wrote:
> On 26/01/17 19:45, Gert Doering wrote:
> > On Thu, Jan 26, 2017 at 07:36:32PM +0100, David Sommerseth wrote:
> >> Anyhow ... quick-fix/workaround: Don't use --auth-nocache
> > 
> > What happens if you have --auth-nocache, the server sends a token, and
> > the token expires?  Will the client get something back that it can
> > understand as "oh, I need to ask for a new password!"?
> > 
> > (Sorry, I know I *should* have tested this long ago... :-) )
> 
> The when --auth-nocache is in use, the contents of password field in
> struct user_pass is wiped and later ignored, regardless if the server
> sent an --auth-token or not.

Uh.  My question did not make sense.  Trying again:

What happens if you do NOT have --auth-nocache, the server sends a token, 
and the token expires?  Will the client get something back that it can
understand as "oh, I need to ask for a new password!"?

gert


-- 
USENET is *not* the non-clickable part of WWW!
   //www.muc.de/~gert/
Gert Doering - Munich, Germany g...@greenie.muc.de
fax: +49-89-35655025g...@net.informatik.tu-muenchen.de


signature.asc
Description: PGP signature
--
Check out the vibrant tech community on one of the world's most
engaging tech sites, SlashDot.org! http://sdm.link/slashdot___
Openvpn-users mailing list
Openvpn-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/openvpn-users