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FabulaTech Forum USB Solutions USB over Network (Moderators: Tim_GaliullinFT, Andrew, Sergey_Jarovski) Linux server SSL configuration

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Topic: Linux server SSL configuration (Read 4752 times)

gbr
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Posts: 10

Linux server SSL configuration
on: Aug 30^th, 2018, 8:58am

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Hi,

I am willing to make TLS active between windows client and linux server.
Did not find information on how to configure certificate on linux server side.
Could you provide detailed procedure?
Thanks and Regards
Gilles

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Sergey_Jarovski
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Re: Linux server SSL configuration
Reply #1 on: Aug 30^th, 2018, 10:11am

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Hi,

Please run daemon with -h key (sudo ./ftusbnetd -h) and look at -s option.

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Sergey Jarovski

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gbr
FabulaTech Forum Newbie

Posts: 10

Re: Linux server SSL configuration
Reply #2 on: Sep 10^th, 2018, 10:48am

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Hi,
Ok so I tried with my linux server :
./ftusbnetd -s server.rsa.crt

Then, I configure my WINDOWS client with options :
Require SSL connection : selected
Use trusted authorithy certificate : NOT CHECK, I used SELF SIGNED certificate

Connection status : error Enable SSL

how can I configure properly : I guess I shoud set the server.rsa.crt on client configuration ?
but still not working

Thanks for your feedback

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Sergey_Jarovski
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Re: Linux server SSL configuration
Reply #3 on: Sep 11^th, 2018, 10:43am

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Hi again,

You must enable both ("Use trusted authority certificate" and "Use client authentication certificate") options in USB over Network (client) GUI:
https://www.fabulatech.com/usb-over-network-client-help/client-settings-ssl.html
and specify your trusted and client certificates

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Sergey Jarovski

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gbr
FabulaTech Forum Newbie

Posts: 10

Re: Linux server SSL configuration
Reply #4 on: Sep 11^th, 2018, 3:54pm

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Thanks,

but I am not sure to get the point:

from the client point of view, client should authenticate the server (then SSL ciphering would be handshaked)

So I understand client configuration needs server certificate as an hard-coded acknowledgment
=> I have generate rsa.crt and key on server side with linux openssl command, OK.

but, why do I need client certificate , and where does it come from ?

thanks for your help

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gbr
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Posts: 10

Re: Linux server SSL configuration
Reply #5 on: Sep 24^th, 2018, 1:22pm

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Hi again,
On server side :

D: 1537791656: net_init_cb: enabling SSL
W: 1537791656: SSLv23_server_method: no such function
E: 1537791656: fdchan_io_ssl_server_create: error:140A90C4:SSL routines:func(169):reason(196)
E: 1537791656: net_init_cb: failed to create SSL server object
D: 1537791656: net_close: closing channel, fd=18

Hope it can help, I continue investigation

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gbr
FabulaTech Forum Newbie

Posts: 10

Re: Linux server SSL configuration
Reply #6 on: Sep 24^th, 2018, 1:26pm

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Quite sure : SSLV2/3 no more supported due to vulnerability, so linux SSL layer reject CLIENT hello

What can you do about it, e.g CLIENT shall sue TLS instead

Thanks

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gbr
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Posts: 10

Re: Linux server SSL configuration
Reply #7 on: Mar 11^th, 2019, 1:49pm

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Hi support Team,

reagrding this issue , did you mae a correction in the usb over network software ?

Thanks for your fedback

with best regards

GB.

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