Applications Systems
Set up an SSH tunnel for database instance monitoring
While Standard TCP/IP over SSH functionality isn't built directly into DPA, you can set up an SSH tunnel with 3rd party software to connect a database server that's unreachable directly from your DPA server.
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Overview
You can set up an SSH tunnel to connect to a database server that's unreachable directly from your DPA server. This requires an SSH connection to either the database server or a server from which the database is directly accessible.
Once the SSH connection is in place, the database's port can be forwarded over the SSH tunnel to a free port on your DPA server. You can then register the database instance for monitoring in DPA as if the database is running directly on the DPA server.
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Resolution
- The SSH tunnel has to be opened on the OS level (from the machine where DPA is installed)
- Map the remote database's port to a free local port on the DPA server
- How to set up an SSH tunnel with port forwarding, using a third party program:
- Windows (via Putty): https://the.earth.li/~sgtatham/putty/0.68/htmldoc/Chapter4.html#config-ssh-portfwd (© 2017 Earth.LI.available at http://www.earth.li, obtained on November 19, 2018)
- Linux (via SSH): https://www.ssh.com/ssh/tunneling/example (© 2017 SSH Communications Security, Inc., available at http://www.ssh.com, obtained on August 28, 2017)
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