Sometime developers want to run to instance of Jekyll servers on develpment server.
By default Jekyll server starts on port number
4000, and can be access via
bundle exec jekyll serve or jekyll serve
To run 2 or more instances of jekyll servers on same machine you need to change the port number.
Run first jekyll server on default port
4000, and second server on specific port as below:
bundle exec jekyll serve -P 4001 or jekyll serve -P 4001