Author Archives: mea

LDAP Authentication In Linux

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This howto will show you howto store your users in LDAP and authenticate some of the services against it. I will not show howto install particular packages, as it is distribution/system dependant. I will focus on “pure” configuration of all componenets needed to have LDAP authentication/storage of users. The howto assumes somehow, that you are migrating from a regular passwd/shadow authentication, but it is also suitable for people who do it from scratch.

LDAP Authentication In Linux | HowtoForge – Linux Howtos and Tutorials.

MediaTomb – Free UPnP MediaServer

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MediaTomb is an open source (GPL) UPnP MediaServer with a nice web user interface, it allows you to stream your digital media through your home network and listen to/watch it on a variety of UPnP compatible devices.

MediaTomb implements the UPnP MediaServer V 1.0 specification that can be found on http://www.upnp.org/. The current implementation focuses on parts that are required by the specification, however we look into extending the functionality to cover the optional parts of the spec as well.

via MediaTomb – Free UPnP MediaServer.

Welcome to Soekris Engineering, Inc. – Home

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Soekris Engineering, Inc. has been proudly designing and manufacturing reliable, robust, superior quality communications computers for 10 years.

We stand behind our reputation of providing our customers with a product they can depend on at a fair price. We support our customers by giving them a stable hardware platform on which to add value that is unique to their industry and/or needs.

via Welcome to Soekris Engineering, Inc. – Home.

m0n0wall

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m0n0wall is a project aimed at creating a complete, embedded firewall software package that, when used together with an embedded PC, provides all the important features of commercial firewall boxes (including ease of use) at a fraction of the price (free software).

m0n0wall is based on a bare-bones version of FreeBSD, along with a web server, PHP and a few other utilities. The entire system configuration is stored in one single XML text file to keep things transparent.

m0n0wall is probably the first UNIX system that has its boot-time configuration done with PHP, rather than the usual shell scripts, and that has the entire system configuration stored in XML format.

via m0n0wall.

VideoLAN – The cross-platform streaming solution

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VideoLAN – The cross-platform streaming solution.

Overview of the VideoLAN streaming solution

The VideoLAN streaming solution includes two programs:

  • VLC media player which can be used as a server and as a client to stream and receive network streams. VLC is able to stream all that it can read.
  • VLS (VideoLAN Server), which can stream MPEG-1, MPEG-2 and MPEG-4 files, DVDs, digital satellite channels, digital terrestial television channels and live videos on the network in unicast or multicast. Most of the VLS functionality can now be found VLC. Usage of VLC instead of VLS is advised.

DSDT – OSx86

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The Differentiated System Description Table is the main table in the ACPI part of a computer’s BIOS.

The Advanced Configuration and Power Interface (ACPI) defines a large number of tables that provide the interface between an ACPI-compliant operating system and system firmware. These allow description of system hardware in a platform-independent manner in ACPI Machine Language (AML).

via DSDT – OSx86.

PCIe, power management, and problematic BIOSes

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As a result of the high clock rates used, PCI-Express devices can take a lot of power even when they are idle. “Active state power management” (ASPM) was developed as a means for putting those peripherals into a lower power state when it seems that there may be little need for them. ASPM can save power, but the usual tradeoff applies: a device which is in a reduced power state will not be immediately available for use. So, on systems where ASPM is in use, access to devices can sometimes take noticeably longer if those devices have been powered down. In some situations (usually those involving batteries) this tradeoff may be acceptable; in others it is not. So, like most power management mechanisms, ASPM can be turned on or off.

via PCIe, power management, and problematic BIOSes [LWN.net].

This might have something to do with the PCI ethernet card being shutdown on medusa — a problem which has only been resolved by not using the PCI eth slot on medusa’s motherboard.