It had been awhile since I have installed NRPE or Nagios Remote Plugin Executor running through xinetd so once I thought I had everything configured I attempted to restart xinetd but NRPE was not working properly. Below I describe the error in more detail along with how I resolved the issue. In the below example the…
I was installing some tools on my mac today which I wanted to have in the path. Specifically I was installing the Android-SDK tools. I wanted to have the adb shell come up no matter which directory I was in. Being a Linux guy I check out /etc/profile but discovered that mac does it just a tiny…
Recently I was doing a security audit on a Linux server and noticed some Apache and PHP items that needed to be modified to make the server more secure. One of the items that should be disabled is allow_url_fopen because the risk that it can be abused. The issue is that allow_url_fopen is on by…
You may receive the below error when attempting to upload files via the WordPress Add New Media page. The error is fairly specific regarding what the issue is however you may be unfamiliar with how to resolve the issue so below I will explain how to modify php.ini and resolve the error.
I ran in to the weirdest error today. “sudo: unable to resolve host”. I got this error even running as root which was the really weird part. I was especially confused because I have been running Linux as my main OS for the better part of 10 years and have never run into this issue.…
Changing the timezone on Linux is easy. The timezone within Linux is set by a symbolic link located in the /etc directory which needs to be changed to the new timezone. Once this is changed the time needs to be synced to a time server. I recently moved from Las Vegas to Louisville and had…
Its fairly straight forward to monitor a postgresql table’s activity with the wonderful script check_postgres.pl created by Greg Sabino Mullane. This script is useful for so many things I will surely be writing about other ways to use this script with Nagios and Cacti. Download Script: Download the check_postgres.pl script here.
Sometimes after upgrading your RPM packages with YUM there will be new configuration files generated. These files have .rpmnew tacked onto the end and are created this way so they do not overwrite any configuration file changes you have made. You can find all of the .rpmnew files by running the following command from your…
There are a couple settings that may need to be changed when uploading zip files via the NextGen Gallery admin interface within WordPress. The actual plugin notes that php.ini should have the following setting changed from the default of 2M to 20M like below.