Now that you are able to create various forward or reverse SSH tunnels with lots of options and even simplify your live with ~/.ssh/config you probably also want to know how make a tunnel persistent. By persistent I mean, that it is made sure the tunnel will always run. For example, once your ssh connection
Category Archives: Command Line Fu
When it comes to the art of SSH tunnelling, there are basically two options where to relay a port to.
You can relay a port from a remote server to your local machine with `ssh -L`, hence called local port forwarding. A very basic use-case is if your remote server has a MySQL database daemon listening on port `3306` and you want to access this daemon from your local computer.
The second option is to make your local port available on a remote server (`ssh -R`). Remote port forwarding might come in handy if you for example want to make your local web-server available on a port of a public server, so that someone can quickly check what your local web-server provides without having to deploy it somewhere publicly.
When you issue git tag it will show you all tags of a repository sorted in alphabetical order. But actually it makes much more sense to see tags sorted by tagging date. Unfortunately there is currently no such git sub command that accomplishes this easily. So we are going to write our own: Article series
If you want to search files by a pattern and then apply something to the results you have at least two choices. You can use find. -exec or you can pipe the results to xargs. There are also two different choices for find -exec and find | xargs that will have a dramatic impact on