synergy ssl mismatch

[SynergyGuy]

Hello. I am using Synergy 1.1.1. I have just update to the pro version and am trying to use tls encryption. I have 1 Linux server and 1 Linux Client and 1 Windows Client. The two linux computers both use OpenSSL version 1.1.1. But the Windows computer uses OpenSSL version 1.0.2g. I can't use the TLS version with the Windows computer. I have to untick the box to use TLS or it will not connect.

Also, on my Linux client which is a Ubuntu 18 arm system, there is no menu at the top.

Also, on my Linux server, every time I reopen synergy, I have to reactivate it, because it reverts to unregistered!

[Lyall Pearce]

I seem to be having similar problems, synergy pro 1.12.0-stable on a windows 10 machine (fully up to date), talking to a Gentoo linux server running synergy 1.13.1.41 with kernel 5.10.27-gentoo.

Was working over the last week, now client (on windows) is complaining about SSL version.

It seems that disabling SSL on the connection 'fixes' the problem, which I have no issue with on my home LAN, but this could be problematic for others :)

[Lyall Pearce]

Updated to 1.14.0.4 (Gentoo version) on Gentoo Linux (Server)

Windows 10 is 1.14.0

Still no luck. Log entry from the Windows 10 (client)

[2021-06-25T10:53:32] INFO: log level: INFO
[2021-06-25T10:53:32] INFO: service command updated
[2021-06-25T10:53:32] INFO: service command updated
[2021-06-25T10:53:32] INFO: starting new process
[2021-06-25T10:53:32] INFO: activeDesktop:Default
[2021-06-25T10:53:32] ERROR: could not get session id for process id 14024
[2021-06-25T10:53:32] INFO: starting new process
[2021-06-25T10:53:33] NOTE: started client
[2021-06-25T10:53:33] NOTE: connecting to 'Lyalls-PC.fritz.box': 192.168.1.9:24800
[2021-06-25T10:53:33] INFO: service status: active
[2021-06-25T10:53:33] ERROR: tls error occurred (generic failure)
[2021-06-25T10:53:33] ERROR: openssl error: error:1408F10B:SSL routines:ssl3_get_record:wrong version number
[2021-06-25T10:53:33] ERROR: failed to connect secure socket
[2021-06-25T10:53:35] WARNING: failed to connect to server: Timed out
[2021-06-25T10:53:36] NOTE: connecting to 'Lyalls-PC.fritz.box': 192.168.1.9:24800
[2021-06-25T10:53:36] ERROR: tls error occurred (generic failure)
[2021-06-25T10:53:36] ERROR: openssl error: error:1408F10B:SSL routines:ssl3_get_record:wrong version number
[2021-06-25T10:53:36] ERROR: failed to connect secure socket
[2021-06-25T10:53:38] WARNING: failed to connect to server: Timed out
[2021-06-25T10:53:39] NOTE: connecting to 'Lyalls-PC.fritz.box': 192.168.1.9:24800
[2021-06-25T10:53:39] ERROR: tls error occurred (generic failure)
[2021-06-25T10:53:39] ERROR: openssl error: error:1408F10B:SSL routines:ssl3_get_record:wrong version number
[2021-06-25T10:53:39] ERROR: failed to connect secure socket
[2021-06-25T10:53:41] WARNING: failed to connect to server: Timed out
[2021-06-25T10:53:42] NOTE: connecting to 'Lyalls-PC.fritz.box': 192.168.1.9:24800

 

 

[Lyall Pearce]

Up until this point, I have been using synergy-server executable on Gentoo linux, started during the default runlevel as a system wide service. As such, it works even if the login screen is showing.

No options that I can see to regenerate certs. In fact, the Gentoo ebuild does not even install a default certificate.

I have now disabled that service and started up qsynergy on login to my X session, using Fluxbox window manager.

I tried using executable qsynergy, which does give a GUI, it generates a pem file in my home directory but the windows 10 pc still fails to connect with TLS version mismatch, even after re-generating the pem file.

I do see the following output on my xterm session (serial key removed), on startup of server (same xterm I started qsynergy on).

 ("-f", "--no-tray", "--debug", "INFO", "--name", "Lyalls-PC", "--enable-crypto", "--tls-cert", "/home/lyall/.synergy/SSL/Synergy.pem", "-c", "/etc/synergy.conf", "--address", "Lyalls-PC.fritz.box:24800", "--serial-key", "???"

 

Edited June 25, 2021 by Lyall Pearce
Added that Gentoo ebuild does not install default PEM