Daily *Nix

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====== Synergy ======

Project : [[https://github.com/symless/synergy-core.git|Github]]

:!: Barrier / Opensource forked from 1.x after it became paid.
Project : [[https://github.com/debauchee/barrier|Barrier]]

==== Installation ====
:!: Since version 2.x there is GUI for synergy available and there is no hm.sh script in source.\\
I've chose to use 2.x since it uses openssl to secure connection. \\

=== Linux ===
Most linux distro has package available.
<code bash | fedora>
sudo dnf install synergy
</code>

=== Mac ===
<code bash>
  git clone https://github.com/symless/synergy-core.git
  git checkout v2.0.0-stable
  brew update
  brew upgrade
  brew info qt
  export CMAKE_PREFIX_PATH="/usr/local/Cellar/qt/5.10.1/Frameworks/"
  export LD_LIBRARY_PATH=$(brew --prefix openssl)/lib
  export CPATH=$(brew --prefix openssl)/include
  export PKG_CONFIG_PATH=$(brew --prefix openssl)/lib/pkgconfig
  mkdir build
  cmake -DCMAKE_OSX_SYSROOT=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk -DCMAKE_OSX_DEPLOYMENT_TARGET=10.9 -DCMAKE_OSX_ARCHITECTURES=x86_64
  make
</code>

Once building binary is done, Copy files to **~/bin/** so it can be used used within path.\\


====Post Build====
=== Server ===
<code bash>
  openssl req -x509 -nodes -days 3650 -subj /CN=Synergy -newkey rsa:4096 -keyout ~/.synergy/SSL/Synergy.pem -out ~/.synergy/SSL/Synergy.pem
  openssl x509 -fingerprint -sha1 -noout -in ~/.synergy/SSL/Synergy.pem > ~/.synergy/SSL/Fingerprints/Local.txt
  sed -e "s/.*=//" -i ~/.synergy/SSL/Fingerprints/Local.txt
  cat ~/.synergy/SSL/Fingerprints/Local.txt # This is where you get server key hash
</code>

=== Client ===
Copy server key hash to following file.
<code text>
~/Library/Synergy/SSL/Fingerprints/TrustedServers.txt
</code>

==== Starting server / client ====
In my case server is on linux and client is on mac.

=== Server ===
== Configuration ==
<code bash | ~/.synergy.conf>
# sample synergy configuration file
#
# comments begin with the # character and continue to the end of
# line.  comments may appear anywhere the syntax permits.
# +-------+  +--------+ +---------+
# |Laptop |  |Desktop1| |iMac     |
# |       |  |        | |         |
# +-------+  +--------+ +---------+


section: screens
	# three hosts named:  Laptop, Desktop1, and iMac
	# These are the nice names of the hosts to make it easy to write the config file
	# The aliases section below contain the "actual" names of the hosts (their hostnames)
	desk:
	mac:
end

section: links
	# iMac is to the right of Desktop1
	# Laptop is to the left of Desktop1
	desk:
	  right = mac

	# Desktop1 is to the right of Laptop
	mac:
	  left = desk

end

section: aliases
	# The "real" name of iMac is John-Smiths-iMac-3.local. If we wanted we could remove this alias and instead use John-Smiths-iMac-3.local everywhere iMac is above. Hopefully it should be easy to see why using an alias is nicer
	desk:
	  desk

	mac:
	  mac
end
</code>
Now server can be using following command.
<code bash | start server>
/usr/bin/synergy-core --server --name desk -c /tmp/Synergy.TJ6658 --address :24800 -c ~/.synergy.conf --enable-drag-drop --enable-crypto --daemon
</code>

=== Client ===
:?: One can also create the alias in bash profile
<code bash | start client>
~/bin/synergy-core --client --enable-crypto -n mac desk
</code>
==== Autossh ( If do not want to use built-in crytpo library ) ====

Opensource version of synergy does not support encryption any more.\\
In order to secure data transmitted over network i use ssh tunnel, they suggest the same on their website.\\
Best bet is to use autossh, so if you are roaming between location it will auto connect when you are on same network.\\

**Installation**\\
<code bash>
brew install autossh
</code>

**Setup Tunnel**\\
<code bash>
autossh -f -v -M 24800 -N -R 24800:localhost:22 user@hostname
</code>

**Client**\\
Set ServerIP = 'localhost'

That should do it.
Daily *Nix

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