Monthly Archives: January 2014

Lsyncd installation and configuration

Overview This article describes how to use lsyncd as a sync’ing mechanism for multiple web servers data directories. This is only one scenario in which this program could be very useful for our customers. These notes will provide instructions on … Continue reading

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Allow ssh only as a single user or from specific IPs

The following are the relevant config bits in /etc/ssh/sshd_config # disable password authentication globally PasswordAuthentication no Either by username: # now re-enable it down at the very end of the sshd_config file like thus Match User rack PasswordAuthentication yes or … Continue reading

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WordPress Stuff

To change the admin username in WordPress: 1)Go into your phpmyadmin, and click on “Databases.” 2)Click on the name of your database. 3)Click the “Browse” icon next to wp_users. 4)Click the edit icon next to admin – should be first … Continue reading

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Regular Expression Notes

Explaining the following regular expression: (\d(3,4)[.-]?)+ ( starts a capturing group \ escapes the following character d end character shorthand (match any digit in the range 0 through 9 with \d) { open qualifier 3 minimum quantity to match , … Continue reading

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