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Improve Spam abuse protection in dovecot by restricting access to mail accounts by IP address (e. g. with ISPConfig 3) This howto will show you how to add ip restrictions to single mail accounts when using dovecot with MySQL. This is especially useful if you need to access a mail account from only one single ip or a few ips or if you want to block specific ip addresses from accessing the mail account (e. g. due to spam abuse).

Indian state dumps Microsoft for Bharat Operating System Solutions Linux The Indian State of Tamil Nadu will solve its Windows XP problem by adopting Linux.…

Raspberry Pi Foundation expands their charitable mission to go beyond computing and into general education.

Web servers use HTTP by default, which is a clear text protocol. As the name suggests, a clear text protocol does not apply any form of encryption on the transit data. While the HTTP-based web server is very easy to set up, it has a major drawback in terms of security. Any "man-in-the-middle" is able […]Continue reading... The post How to set up HTTPS in Apache web Server on CentOS appeared first on Xmodulo. Related FAQs: How to set up a Subversion (SVN) server on CentOS or Fedora How to secure a mail server using encryption How to install Apache Tomcat on CentOS How to install Apache Ant on CentOS How to set up BGP Looking Glass server on CentOS

Linux can't be understood in terms of hierarchy. Neither can the Internet. That's because both are examples of heterarchy at work.

Intrinsyc has launched a 10-inch developer tablet that runs Android 4.4 on a quad-core Snapdragon 805 SoC, and features 802.11ac and a 3D gesture camera.

IPython 2.0 was released today adding widgets, for manipulating Python objects in the kernel with GUI controls in the notebook. IPython comes with a few built-in widgets for simple data types, and an API designed for developers to build more complex widgets.

Ingenic unveiled a tiny MIPS-based “Newton” COM for wearable and IoT devices that runs Android or Linux on an its Xburst SoC, and offers WiFi and sensors. The Newton computer-on-module development platform was announced both by Beijing-based semiconductor company Ingenic Semiconductor and by Imagination Technologies, which licenses MIPS intellectual property to Ingenic. While Imagination’s announcement […]

Automated testing has its place in detecting IT security weaknesses but it cannot replace manual testing. “Amazingly, even a decade’s old vulnerability like SQL injection still surprises most clients,” adds Jensen. “I think most of the surprises come from the exploitation of seemingly innocuous functionality that results in a devastating vulnerability.”

In the open source community, we know the value of collaboration. It’s at the core of everything we do. Some of us are lucky to work for organizations that understand and embrace the power of collaboration. Yet, the silo mentality runs rampant in many organizations where collaboration and internal crowdsourcing is not valued. (Opensource.com readers who are pursuing open source projects on the side, but spend their days working at companies with silos are likely very familiar with this).

Data recovery from accidentally deleted files or crashed drives in Redhat, CentOS and Fedora Linux This tutorial will help you to recover data from accidentally deleted data from Linux-file systems. This is a very drastic mistake by any user/admin which costs for huge penalties. This script will be a boon for newbies/expert for data management. I will be using TestDisk for data-recovery. Here I have simplified the task with the help of a script.

His adventure started in college with Slackware, lead him to Sendmail, then eventually to Reddit, and now his career is streaming at Netflix. Jeremy Edberg is a Reliability Architect at Netflix and will be speaking at DevNation in April 2014 in San Francisco, California.

Learn how to make the most of your Raspberry Pi with our brand new Raspberry Pi Complete Manual, available now with everything you need to know to get started and beyond.

A round-up of what's in the latest issue.

ABI Research predicts that Chromebook sales will continue to increase and reach 11 million shipments worldwide by 2019.

Using the open-source Cpplinq project to get Language-Integrated Query capabilities in C++11

Today KDE released updates for its Applications and Development Platform, the fourth in a series of monthly stabilization updates to the 4.12 series.

If you wanted to assemble the world’s finest fruit basket, you wouldn’t pick all your produce from the same orchard. You would gather the best from multiple sources: Washington apples, oranges from Florida, and pineapples from Hawaii. Applying the same philosophy, many programmers and developers are now combining the best coding from multiple open source Web Application Frameworks (WAF) in order to create their own custom-made websites, content management systems (CMS), and other web-based apps and services. Call it cherry picking at its finest.

The OpenStack Summit is coming up in Atlanta, May 12-16, and after much anticipation the agenda for the conference finally became available last week. As we covered previously, the agenda was crowdsourced to the user and developer community who gave input that helped individual track leaders arrange their schedules.

You probably think I'm going to talk about all the reasons why you should use open source tooling as the foundation for an effective DevOps culture in your organization, but that's not what this is about. Not to marginalize the complexity of the challenges faced by the team I work with, but I have confidence that the engineers are going to figure the tooling part out. Believe it or not, the daunting part is wrapped in cultural change. I have spent a significant amount of time reading about cultural change, what you need to have an effective DevOps community, how you build high functioning teams, and asking the question, "How do I DevOp?" The ideas I've read have given me a few new things to stick in my tool belt. However, nothing has resonated with me as much as this: