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481 wget http://mirrors.mit.edu/pub/OpenBSD/OpenSSH/portable/openssh-7.4p1.tar.gz 482 tar -xvzf openssh-7.4p1.tar.gz 483 ls openssh-7.4p1 484 ls openssh-7.4p* 485 ls 486 tmuxl 487 tmuxt pFS2 488 tmuxt pipemonitor 489 rm openssh-7.4p1.tar.gz 490 cd openssh-7.4p1 491 ./configure --prefix=/home/joshpfosi/bin 492* which ssh 493 make && make install 494* ls bin 495* vi bin/pipemonitor 496 ../bin/sbin/sshd -p 8378 497 sudo /home/joshpfosi/bin/sbin/sshd -p 8378 ------------ must be sudo 498* exit 499* cat .bash_profile 500* vi .bash_profile 501* rm ~/.clip.pipe 502* exit 503* ls ~/.clipper* 504* exit

Server Setup

Build and run new version of ssh

  • We have to compile a new version of ssh. Currently it is 6.7.
# install a new openssh version locally
wget http://mirrors.mit.edu/pub/OpenBSD/OpenSSH/portable/openssh-7.4p1.tar.gz
tar -xvzf openssh-7.4p1.tar.gz
cd openssh-7.4p1
./configure --prefix=/home/joshpfosi/bin
make
make install
  • Start the local ssh server by running:

NOTE: This is no longer needed!

/home/joshpfosi/bin/sbin/sshd -p 8378
  • NOTE: port 8378 is arbitrary
  • NOTE: must use an absolute path here

Installing and Setting up Clipper on OSX

git clone git://git.wincent.com/clipper.git
cd clipper
# May need to `brew install go`
go build
sudo cp clipper /usr/local/bin

# Copy below plist file to ~/Library/LaunchAgents/com.joshpfosi.clipper.plist

launchctl unload -w -S Aqua ~/Library/LaunchAgents/com.joshpfosi.clipper.plist
launchctl load -w -S Aqua ~/Library/LaunchAgents/com.joshpfosi.clipper.plist
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC -//Apple Computer//DTD PLIST 1.0//EN http://www.apple.com/DTDs/PropertyList-1.0.dtd >
<plist version="1.0">
<dict>
	<key>Label</key>
	<string>com.wincent.clipper</string>
	<key>ProgramArguments</key>
	<array>
		<string>/usr/local/bin/clipper</string>
		<string>--address</string>
		<string>~/.clipper.sock</string>
		<string>--logfile</string>
		<string>~/.clipper.log</string>
	</array>
	<key>EnvironmentVariables</key>
	<dict>
		<key>LANG</key>
		<string>en_US.UTF-8</string>
	</dict>
	<key>KeepAlive</key>
	<true/>
	<key>LimitLoadToSessionType</key>
	<string>Aqua</string>
</dict>
</plist>

#ssh config setup on osx Add this to your ~/.ssh/config

# Allow sharing of multiple sessions over a single network connection
# With this configured, clipper, which requires a single connection over which
# to send back content, will not lose its connection when additional sessions to
# us102 are opened.
Host *
  ControlMaster auto
  ControlPath ~/.ssh/%r@%h:%p
  ControlPersist 240
  Port 8378

Host us102
  User joshpfosi
  Port 8378
  # Tell ssh to forward data from .clipper.sock on us102 to this host
  RemoteForward /home/joshpfosi/.clipper.sock /Users/joshpfosi/.clipper.sock
  • Now things should be working
ssh us102
  • This should create a ~/.clipper.sock in the remote server.

Misc

  • Use RSA encryption -- seems to play nicer than DSA with clipper

Troubleshooting

If reset_clipper is timing out, grep for ssh sessions using 837{8,9}. Using -N sends the session to the background, so you may think you've killed it when you haven't. Kill any sessions and try again.