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Cannot connect via Synapse and SSH to a linux box
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Topic: Cannot connect via Synapse and SSH to a linux box (Read 30046 times)
big_M
Jr. Member
Posts: 91
Re: Cannot connect via Synapse and SSH to a linux box
«
Reply #60 on:
April 14, 2017, 01:41:12 am »
Since I only found this thread when googling for "Technical details: No algorithm compatible with the remote system's selection was found:" ...
There seems to be problem with openssh 6.7 upwards and cryptlib 3.4.2.
http://forums.apc.com/spaces/7/ups-management-devices-powerchute-software/forums/general/1785/openssh-v6-7-received-disconnect-handshake-failed/1#6079
My program used to work perfectly using synapse and cryptlib to connect to an ssh server, until I upgraded my Linux distribution. Reverting back to openssh 6.6 solved the problem for now. Maybe this info will be usefull to someone
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Thaddy
Hero Member
Posts: 14157
Probably until I exterminate Putin.
Re: Cannot connect via Synapse and SSH to a linux box
«
Reply #61 on:
April 14, 2017, 06:30:20 am »
"The probably easies workaround for now is to force the use of MD5 to make SSH request only a 3076 bit DH key.
This can be done using the "-m hmac-md5" command line flag or "MACs hmac-md5" config option."
WTF? Chillingly bad advice. Don't use that.
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Cannot connect via Synapse and SSH to a linux box
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