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Search results for Avoiding slow package updates with package diffs

FreeBSD

Secure Batch Email on FreeBSD with UUCP and SSH

Post date: April 19, 2005, 02:04 Category: Network Views: 3744 Comments
Tutorial quote: Not everyone has reliable, always-on Internet access. For some, reliability has to come through software, not hardware. Fortunately, protocols designed to work around slow and unreliable networks still work. Christophe Prevotaux demonstrates how to set up FreeBSD, Postfix, and SSH to send and receive email via UUCP.
Linux

Monitoring and Managing Linux Software RAID

Post date: April 15, 2005, 23:04 Category: System Views: 3349 Comments
Tutorial quote: Systems administrators managing a data center face numerous challenges to achieve required availability and uptime. Two of the main challenges are shrinking budgets (for hardware, software, and staffing) and short deadlines in which to deliver solutions. The Linux community has developed kernel support for software RAID (Redundant Array of Inexpensive Disks) to help meet those challenges. Software RAID, properly implemented, can eliminate system downtime caused by disk drive errors. The source code to the Linux kernel, the RAID modules, and the raidtools package are available at minimal cost under the GNU Public License. The interface is well documented and comprehensible to a moderately experienced Linux systems administrator.

In this article, I'll provide an overview of the software RAID implementation in the Linux 2.4.X kernel. I will describe the creation and activation of software RAID devices as well as the management of active RAID devices. Finally, I will discuss some procedures for recovering from a failed disk unit.
OpenSUSE

Clive - Download videos from YouTube & other video sharing websites

Post date: August 15, 2008, 22:08 Category: Multimedia Views: 3929 Comments
Tutorial quote: clive is an open source command line tool to extract videos and to bypass the need to use Adobe Flash in order to view user-generated content available on video-sharing websites. Clive supports Youtube, GoogleVideo, Dailymotion, metacafe, Guba, Sevenload, Myvideo. Clive converts the downloaded Flash Video into a MP4 file avoiding the need of having a Flash Video Player.
Linux

Building an LDAP Server on Linux, Part 2

Post date: April 15, 2005, 17:04 Category: Network Views: 4147 Comments
Tutorial quote: Welcome back! In Part 1 we learned basic concepts of LDAP and the uses for an LDAP server. Today we'll install and configure an OpenLDAP directory.

A quick note before we get started: this is LDAP 101. We are not installing any kind of encryption or strong authentication; we'll get to that in part 3. In my experience, learning LDAP in small chunks works best. (Then again, perhaps I'm just a bit dim.) So sit back, strap in, and keep your fingers away from the training wheels.

"The wise sysadmin will consult the documentation for their distro; it's quite possible that OpenLDAP will be packaged and ready to go in a pleasing manner (or ready to go in an odd manner--you never know). I'm all for easy--if your particular distribution provides an easy way, use it. RPMs can also be obtained from rpmfind.net, which thoughtfully lists all the required additional packages.

"Debian of course goes its own merry way. apt-get does the job just fine; the tricky bit is finding out the package names. Debian users want ldap-utils; slapd, which is OpenLDAP; and libdb4.1, to get the Sleepycat DB. These three components are enough to get you up and running. apt-get will walk you through a minimal configuration and will automatically start up slapd, the LDAP server daemon.
Linux

Tuning up your IDE hard disks using hdparm

Post date: April 12, 2005, 18:04 Category: Optimizing Views: 3757 Comments
Tutorial quote: hdparm is a tool for altering various parameters associated with IDE drives (Not SCSI). This involves things like the block prefetch, the DMA/PIO modes,
and a number of other things.

I'm writing this mini-how-to to help people get more from their system. People often complain that Linux is a bit slow for them (which it can be) I haven't seen such a post recently, but I know on TechIMO at least we always used to be talking people through using hdparm.
Debian

Fight Image Spam With FuzzyOCR And SpamAssassin On Debian/Ubuntu

Post date: February 15, 2007, 18:02 Category: Software Views: 3824 Comments
Tutorial quote: This tutorial describes how to scan emails for image spam with FuzzyOCR. FuzzyOCR is a plugin for SpamAssassin which is aimed at unsolicited bulk mail containing images as the main content carrier. Using different methods, it analyzes the content and properties of images to distinguish between normal mails (ham) and spam mails. FuzzyOCR tries to keep the system load low by scanning only mails that have not already been categorized as spam by SpamAssassin, thus avoiding unnecessary work.
OpenSUSE

xclip - Copy contents from command line to X clipboard in openSUSE

Post date: April 14, 2009, 06:04 Category: Desktop Views: 4080 Comments
Tutorial quote: xclip is a command line interface to the X11 selections (X11 clipboard). It can also be used for copying files, as an alternative to sftp/scp, thus avoiding password prompts when X11 forwarding has already been setup. xclip reads from Standard Input or from one or more files and copy it to the X11 clipboard making it available to the X applications. xclip can also print the content of the current X clipboard onto the standard output or to a file.
Debian

Updating multiple machines on low bandwidth

Post date: June 16, 2006, 21:06 Category: Network Views: 3511 Comments
Tutorial quote: There are situations where it is common to want to update multiple machines running Debian GNU/Linux whilst minimizing the bandwidth used for downloading packages and updates. There are several different solutions for this problem and here we'll look at one of them: apt-proxy.
eBox

Using eBox As A Windows Primary Domain Controller

Post date: November 26, 2009, 12:11 Category: Miscellaneous Views: 8190 Comments
Tutorial quote: eBox Platform is an open source small business server that allows you to manage all your services like firewall, DHCP, DNS, VPN, proxy, IDS, mail, file and printer sharing, VoIP, IM and much more. These functionalities are tightly integrated, automating most tasks, avoiding mistakes and saving time for system administrators. This tutorial shows you step by step how to use eBox as a Windows Primary Domain Controller. At the end of it you will be using eBox Platform 1.2 for users and shared resources management on your Windows domain.
Ubuntu

Install Ubuntu kernel updates without rebooting using Ksplice Uptrack

Post date: August 24, 2009, 14:08 Category: Software Views: 3163 Comments
Tutorial quote: Ksplice Uptrack is an update service for the Linux kernel; it automatically delivers security and reliability improvements to your machine, without the disruption of rebooting.
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