Linux System Administration 28
OSSEC Intrusion Detection Installation On Centos 7
OSSEC (Open Source HIDS SECurity) is an open source host-based intrusion detection system (HIDS). It performs log analysis, integrity scanning, rootkit detection, time-based alerting, and active responses to triggers. You can install it on linux, windows, and mac. It allows for both local installs as well as an agent that can be deployed out to multiple […]
Configure ProFTPd for SFTP on CentOS
This is a guide on how to configure ProFTPd for SFTP sessions. Secure File Transfer Protocol (SFTP) is a secure version of FTP which transfers files via the SSH protocol. ProFTPD can be reconfigured to serve SFTP sessions vs using the default FTP protocol. This guide assumes you already have a existing ProFTPD installation. If […]
How To Check And Repair MyISAM Tables In MySQL
MySQL tables can become corrupt for a variety for reasons such as incomplete writes, running out of space, the MySQL daemon being killed or crashing, power failures. If MySQL detects a crashed or corrupt table it will need to be repaired before it can be used again. This guide will walk you through detecting crashed […]
Mod_Expires Configuration In Apache
mod_expires is a module which runs on the Apache web server. It allows manipulation of the cache control headers to leverage browser caching. What this means more specifically is that you will be able to set values on how long the image will be stored by the browser when a client makes a request. This […]
WebP Image Conversion On A Linux Server
WebP is a new image format that provides a lossless and lossy compression on PNG and JPEG file types. It was developed by Google resulting in up to 80% smaller image size. It is supported on all most all modern browser versions. You can use Nginx and Apache to determine if this format is supported […]
CollectD System Performance Monitor Installation On Centos 7
Collectd is a daemon which collects system performance data and metrics. It runs as a daemon and the data it collects can either be processed locally or sent to a central logging server. It is easy to configure and set up and can be configured to report to various metric analytics platforms. This is is a […]
How To Setup mod_rewrite In Apache
mod_rewrite is a Apache module installed on linux servers to manipulate URLs submitted in the browser to perform other functions than it appears. Mod_rewrite can improve SEO appearing to give it a static appearance. This guide assumes you already have Apache installed, if you do not please see How to Install Apache Enable mod_rewrite You will […]
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