Authentication via PEM file without root user

A year or so ago i wrote how to create PEM file and login to your server with it to take advantage of disabling password based logins.

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Create PEM file for your Linux server

To disable password based login and login only using key based authentication. Will create a pem file which will be used to access the server.

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Deny executing a script in Nginx

If you have a web server running on Nginx and have a directory which accepts uploading files either from user OR cms.

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Delete cron mails

There are many ways to delete cron mails and empty the inbox which is filled by cron job every time it runs.

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