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The command uses ssh(1) to get to a remote host, uses tar(1) to archive a remote directory, prints the result to STDOUT, which is piped to gzip(1) to compress to a local file. In other words, we are archiving and compressing a remote directory to our local box.
This is also handy for taking a look at resource usage of a remote box.
ssh -t remotebox top
Play local mp3 file on remote machine's speakers through ssh
Creates the .ssh directory on the remote host with proper permissions, if it doesnt exist. Appends your public key to authorized_keys, and verifies it has proper permissions. (if it didnt exist it may have been created with undesireable permissions).
*Korn shell syntax, may or may not work with bash
This one is a bit more robust -- the remote machine may not have an .ssh directory, and it may not have an authorized_keys file, but if it does already, and you want to replace your ssh public key for some reason, this will work in that case as well, without duplicating the entry.
pub key in ./ssh/authorized_keys needed because ssh-ed ssh can't ask for the password.
analyze traffic remotely over ssh w/ wireshark
When using tcpdump, specify -U option to prevent buffering and -iany to see all interfaces.
Create a secure tunnelled connection for access to a remote MySQL database.
For example, connect with MySQL Workbench to firstname.lastname@example.org:13306.
Requires you to have password free login to remote host ;)
Requires xclip and notify-send (If you want to put into clipboard and be notified when action is completed).
DATE=$(date +%Y-%m-%d_%H-%M-%S)-$(($(date +%N)/10000000));
HOST="ssh host of your choice";
DEST="destination folder without trailing slash";
URL="URL for file if uploaded to web enabled dir ie.
import -window root png:- | ssh $HOST "cat > $DEST/screenshot_$DATE.png";
echo $URL | xclip; notify-send -u low "Screenshot Taken" "Entire screen.\nCopied to clipboard"
This command will:
1. open an SSH tunnel to
2. go to background
3. wait for 10 seconds for the connection
4. during the 10 seconds wait it will localy run 'rdesktop' to connect to the remote host through the created SSH tunnel.
Password-less log in can be achieved (when server allows it) by adding '-p ' to the 'rdesktop' command
Now at the end of the rsa.pub file, there is our comment like=
If you need to xdebug a remote php application, which is behind a firewall, and you have an ssh daemon running on that machine. you can redirect port 9000 on that machine over to your local machine from which you run your xdebug client (I am using phpStorm)
So, run this command on your local machine and start your local xdebug client, to start debugging.
Tomcat webapps are often remote links
To start X11 display only on your local machine: xeyes &
Extensions to basic command: ssh -X -f user@remotehost xcalc -bg black -fg green
(also works on Ubuntu) Copies the 'install,' 'hold,' 'deinstall' and 'purge' states of packages on the remote machine to be matched on the local machine. Note: if packages were installed on the local machine that were never installed on the remote machine, they will not be deinstalled by this operation.
This takes the stream created by apache requests containing jsp and funnels them to another server. I'm using this for simulating real time traffic. The nice command gives ssh maximum CPU cycles, awk & grep strip out everything served by apache. Putting parallel on curl is important because curl is synchronous and waits for the response. Yes, I thought about using wget but it didn't seem any easier. Also, if you figure out how to run this in the background let me know. Every time I background it it stops. If you have multiple front end servers just run multiple instances of this.