Amazon CloudFront and the Access-Control-Allow-Origin error
The other day we deployed a Magento shop in the Amazon cloud. Everything would be fine, but the browser console keeps showing the following error:
Recent Posts
Configuring Postfix Mail Forwarding Domains
Introduction Configuring Postfix mail forwarding domains is a practical solution for situations where local mailboxes are not available, and the server is no...
Postfix change sender domain
Out of the box postfix is sending emails using the domain name that is returned by the following command in the linux shell: uname -n
Using a boilerplate template when creating a new post in WordPress
While working on a new site, we decided to use a single template for publishing posts of a certain type.
Create account in WHM/cPanel from cli
WHM provides a very friendly interface for managing sites, users and databases on the server. Sometimes you have to create several hundreds of accounts for d...
OSSEC client-server installation
OSSEC is an open source attack detection and prevention system. It can be configured to monitor not only events in log files but also changes to files and ru...
Configure SELinux for Apache on CentOS
SELinux is a Linux kernel module that provides an additional mechanism to determine folder and file permissions. Sometimes it creates considerable problems w...
Installing NewRelic Plugins with NPI: MySQL Example
Most people know newrelic.com - a service for tracking application state and performance. This service is developing pretty fast and the developers keep expa...
How to Get by Without sed in the Windows Command Line
Today I ran into the need to change some text in a hundred files on a server running Windows. In linux these tasks are easily solved with sed and the ‘-i’ fl...
How to configure Exim to use SendGrid to send mail
I continue my series of articles about email services until the inspiration from the recently solved problems wears off.
Use DKIM signature for outgoing emails
Email spoofing is the creation of email messages with a forged sender address. There are many services that provide protection from spoofing.
Install Apache mod_evasive.
Description Mod_evasive, formerly known as mod_dosevasive, helps to safeguard your Apache web server against DoS, DDoS (Distributed Denial of Service), and b...
Scan Linux server with maldetect
Malware Detect (LMD) is a utility that scans Linux systems for malicious files (malware). Distributed under the GNU GPLv2 license.
Sorting table rows with jQuery
Let’s say you have the following table on the page and you need to sort it alphabetically:
Scan server with Lynis
Lynis (formerly RkHunter) is a security auditing tool for Linux and BSD systems. It performs a detailed audit of many aspects of your system’s security and c...