Hello, Red Hat Network Satellite users! We hope you’re excited about the recent release of Red Hat Network Satellite 5.1. Earlier, we gave you some details about the new Satellite exporter tool that allows you to easily populate content on disconnected RHN Satellites.
Another new feature introduced by Satellite 5.1 is multiple organization support. This feature allows you to partition your Satellite into different organizations, each with their own subscriptions, systems, and content. It provides Satellite administrators with a new way to control user and system access to resources on a Satellite server. For more details on multiple organization support, please refer to our whitepaper: RHN Satellite 5.1 Best Practices for Multiple Organizations (PDF download, ~700KB).
The Satellite Team would like to learn how we can improve this feature to better suit your needs–and we need your help. » Read more
To set the default password expiration when creating new accounts on Red Hat® Enterprise Linux®, edit the /etc/login.defs file.
For example, to set the default maximum number of days a password may be used, change the following parameter in login.defs:
PASS_MAX_DAYS 30
To set the default number of days warning given before a password expires, change the following parameter in login.defs:
PASS_WARN_AGE 7
Please refer the man page of login.defs for more parameters about default password expiration. » Read more
Git is a program for Source Code Management (SCM) whose complexity has been blown out of proportion. This may be due to the fact that early on it was primarily used by Linux kernel hackers who, needless to say, do not represent most users of SCM tools. Regardless of its past, today the UI is quite simple and there are only a handful of techniques a user needs to manage their code base with git–in ways that are nearly impossible to do with the mainstream alternatives. These techniques, which are mentioned in the order of their suggested usage, focus on improving the overall quality of the code base throughout the life of a project. » Read more
There is an integrity checking software called AIDE shipped by Red Hat® Enterprise Linux® 5. AIDE provides some general strategy for implementing integrity checking to detect the intrusions when they have occurred. » Read more
To get information about the version of PHP installed on the system, create a php file on the web server called phptest.php with the following code in the file:
<? phpinfo(); ?>
Save the file and open it from a web browser. This will display information about php.
YouTube is a very popular web service that allows people to share video content online. Although YouTube and other streaming video websites satisfy many users, you may have reasons to create your own streaming video website. Perhaps you work for a company that wants a more professional face on their media. Or, you may want more control over exactly how your videos are presented.
I am a soldier in the U.S. Army, currently deployed to Afghanistan. I wanted to be able to share videos with my family from away from home. I wished to maintain my privacy and have better control over my audience. Whether you wish to share videos for educational purposes, share screencasts for documenting software features, or simply entertain, this article will show you how to set up a streaming video website using open source software.
This technique outlines acquiring a video stream from a digital video camera, processing the video stream to the distribution format, and creating a website that will stream the video to users. » Read more
Image file size depends on the amount of image details it has. The higher the image quality, the better the resolution but the larger the resulting file size. Web galleries tend to load very slow and sometimes inaccessbile if photos have very high resolutions.
The mogrify command allows users to resize multiple image files at once. mogrify comes with the ImageMagick package. ImageMagick is a program used to resize, rotate, manipulate and display images. It can read, convert and write images in JPEG, TIFF, PNM, GIF and other Photo CD image formats. » Read more
This one’s a two-fer! Dan Walsh covers the evolution of SELinux from Fedora 2 all the way to the upcoming Fedora 9 launch. Find out how it started and how user access controls will grow in the newest release. As a bonus, this is also a preview of Walsh’s scheduled talk at the upcoming Red Hat Summit. Want more? Check out the schedule of talks and register–and we’ll see you in Boston.
When SELinux was first developed, the goal was to confine as many system processes as possible to the least amount of privilege required. Fedora 2 was released with SELinux policy that confined users as well as system processes. We quickly realized that SELinux policy was not mature enough to handle a modern mainstream desktop operating system. After a quick redesign of the policy, we created “targeted” policy, replacing the previously named “strict” policy. The goal of targeted policy was to “target” certain processes in the operating system for confinement and leave the rest of the processes “unconfined.” » Read more
