nir0s nir0s

Opening and closing an SSH tunnel in a shell script the smart way

I recently had the following problem:

From an unattended shell script (called by Jenkins), run a command-line tool that accesses the MySQL database on another host.
That tool doesn't know that the database is on another host, plus the MySQL port on that host is firewalled and not accessible from other machines.

We didn't want to open the MySQL port to the network, but it's possible to SSH from the Jenkins machine to the MySQL machine. So, basically you would do something like

ssh -L 3306:localhost:3306 remotehost

Update HISTORY.md
Commit the changes:

git add HISTORY.md
git commit -m "Changelog for upcoming release 0.1.1."

Update version number (can also be minor or major)

bumpversion patch

Getting Started with NPM (as a developer)

As easy as 1, 2, 3!

Updated:

Aug, 08, 2022 update config docs for npm 8+
Jul 27, 2021 add private scopes
Jul 22, 2021 add dist tags
Jun 20, 2021 update for --access=public
Sep 07, 2020 update docs for npm version

	// install fpm on centos 6.x
	yum("ruby rubygems ruby-devel")
	// yum groupinstall "Development Tools"
	command("gem install fpm")

	Server side :
	-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.port=1099 -Djava.rmi.server.hostname=127.0.0.1 -Djava.rmi.server.useLocalHostname=true

	Client side :
	Forward port 1099 ==> ssh -L 1099:localhost:1099 username@serverip

	Download this logging properties file : http://blogs.oracle.com/jmxetc/resource/logging.properties
	start jconsole using the downloaded properties file :
	$ jconsole -debug -J"-Djava.util.logging.config.file=logging.properties" localhost:1099