|
| |
| |
| |
|
Statistics |
| Unique Visitors: 0 |
| Total Unique Visitors: 447 |
| Visitors Out: 2249 |
| Total Visitors Out: 2249 |
|
|
|
| |
|
|
| |
|
| OpenLDAP + Samba Domain Controller on Debian or Ubuntu |
| 2008-07-04 07:42:33 |
Historically domain controllers (DCs) were Windows servers responding to security authentication requests (logging in, etc.) within the Windows Server domain. Today Samba project goes beyond emulating Windows shares and can be used as Primary Domain Controller in Windows network.
To help people who are under installing/configuring Samba as a DC in their network I published here [...]...
|
| |
|
| FAQ: How to install and configure MySQL cluster? |
| 2008-07-03 08:33:39 |
Question: Can you give me more information on how to set up MySQL cluster?
Answer: Sure, below are the links to extremely informative Internet resources providing detailed guides on why and how to deploy MySQL cluster.
By the way a cluster in IT field is a group of linked computers, working together so they form a single [...]...
|
| |
|
| Quick copy/paste MySQL Replication Manual |
| 2008-07-02 09:33:31 |
This quick manual tells how to set up database replication in MySQL. Basically it was written for 5.* MySQL versions but is also applicable for 3.23/4.0 ones (btw they are still in use, believe me).
As you might already know, replication allows you to create a copy of certain MySQL database from a master server on [...]...
|
| |
|
| FAQ: How to block/allow packets sent by specific Operating System with iptables? |
| 2008-06-19 07:02:48 |
Question: How can I block traffic coming from specific System">operating system in Linux? In other words, how can I block traffic from Windows users on my firewall and allows other people?
Answer: There is an iptables module named OSF (passive OS Fingerprinting) that was written by Evgeniy Polyakov. This module allows passively detect OS packet was [...]...
|
| |
|
| Linux aternatives to Windows software roundup |
| 2008-06-11 05:41:19 |
Below are the links to sites you may want to visit in order to find Linux equivalent of certain commercial Windows software:
1. Open Source Alternative
Quick and useful guide to the best open source software. You can fing here the open source alternatives to your favorite commercial products (not only Windows ones). The main advantage of [...]...
|
| |
|
| Create .deb or .rpm from .tar.gz with checkinstall |
| 2008-06-11 04:46:02 |
Checkinstall is extremely useful utility to create .deb packages for Debian, Ubuntu (or .rpm packages for Fedora, RedHat, CentOs) from .tar.gz (or .tgz) source tarball after it’s compiled at your Linux box. In other words you can prepare binary package for later usage without need to compile software from sources every time you need to [...]...
|
| |
|
| FAQ: How to set up atomatic Linux reboot if kernel panic occurs? |
| 2008-06-11 04:00:15 |
Question: How can I get my Linux server rebooted/restarted automatically if it caught a kernel panic?
Answer: As you might know, kernel panic is an action taken by an operating system upon detecting an internal fatal error from which it cannot safely recover; the term is largely specific to Unix and Unix-like systems (it’s a wiki’s [...]...
|
| |
|
| Bug #1 in Ubuntu |
| 2008-06-06 08:21:13 |
By the way do you know what bug was posted by Mark Shuttleworth as a first and major one? Here it is (2004-08-20):
Microsoft has a majority market share in the new desktop PC marketplace. This is a bug, which Ubuntu is designed to fix.
Non-free software is holding back innovation in the IT industry, restricting [...]...
|
| |
|
| Why did Ubuntu become so popular? UbuntuCat’s point of view. |
| 2008-06-06 07:57:53 |
Were you wondering why Ubuntu is Linux distribution #1 for new users (and not new) and how could it become so popular leaving behind such old-times like Mandriva, Linspire, Fedora and even Ubuntu’s ancestor Debian? I was. And as for me, I think that people stick to community rather than to technology… Do you agree? [...]...
|
| |
|
| FAQ: How to disable directory browsing in apache/httpd? |
| 2008-06-03 07:45:10 |
Question: How can I disable building of directory index in apache/httpd? In other words, how to prevent users from seeing the contents of published directories?
Answer: Actually you are totally right that you wish to disable this feature. One of the "must do’s" on setting a secure apache web server is to disable directory browsing. Usually apache [...]...
|
| |
|
| The Simpsons are made with Linux… |
| 2008-06-03 05:14:56 |
Below are the quotes from rather interesting interview with Joel Cohen, writer and associate producer of The Simpsons. Joel is an Emmy award-winning writer and a keynote speaker at the Red Hat Summit this June. The Simpsons is usually described as satirical parody of the middle class American lifestyle epitomized by its titular family (wiki’s [...]...
|
| |
|
| FAQ: How to select fastest APT server in Debian |
| 2008-05-15 04:44:33 |
Question: I want to select APT repository server/mirror that is fastest for my location. How can I do it in Debian?
Answer: You can use application named as "netselect-apt" to get new sources.list file with fastest APT mirror. Install this application by command "sudo aptitude install netselect-apt" and run it in accordance with Debian distribution you [...]...
|
| |
|
| Download Fedora 9 today and get kernel 2.6.25 and ext4 for FREE! ;) |
| 2008-05-14 09:12:33 |
As it was planned Fedora 9 (codename "Sulphur") is released today. As for me it wasn't such expected as Ubuntu Hardy Heron but it is still very important event in Open Source world. So, here is the list of new features in this version of RedHat sponsored Linux distribution:
[...]...
|
| |
|
| FAQ: How to unload NIC driver (clear ifconfig counters)? |
| 2008-05-13 07:40:44 |
Question: I want to reset counters in /proc/net/dev (also shown in ifconfig output as RX and TX bytes) and thus I have to unload network interface driver. How to do it?
Answer: There are two commands in Linux CLI coming by default which would help to unload drivers: rmmod and modprobe. First of all it is [...]...
|
| |
|
| FAQ: Iptables rules on timely basis |
| 2008-05-12 08:52:09 |
Question: How can I restrict/allow access to certain service on timely basis with iptables? For example restrict access to SSH between 7:00 pm - 8:00 am on weekdays?
Answer: You are welcome to use iptables patch-o-matic extension (pom or p-o-m) that allows you to match a packet based on its arrival or departure (for locally [...]...
|
| |
|
|
| FAQ: static routes after restart/reboot in Fedora/RedHat/CentOS |
| 2008-05-09 04:17:51 |
Static routing is the term used to refer to the manual method used to set up routing. An administrator enters routes into the router using configuration commands. This method has the advantage of being predictable, and simple to set up. It is easy to manage in small networks but does not scale well.
Question: How can [...]...
|
| |
|
| Why and how to migrate to ext4 |
| 2008-05-06 04:15:04 |
Ext4 is the latest in a long line of Linux file systems, and it’s likely to be as important and popular as its predecessors. As a Linux system administrator, you should be aware of the advantages, [...]...
|
| |
|
| Real 10$ Wi-Fi antenna (Video) |
| 2008-05-01 03:24:34 |
Why spend $100 or more on a Wi-Fi antenna when you can create your own one for $10? The following components are needed:
35-mm foam (like the kind desktop and laptop PCs usually come with)
Solid-core copper wire
Small brass plate
Multiple BNC connectors
Follow the instructions in the video:
Related PostsDownload and convert YouTube video online and offlineVideo conference between [...]...
|
| |
|
| Mount your Flickr account as regular Linux drive |
| 2008-04-30 09:34:14 |
Flickr is an extremely popular image/video hosting website, web services suite and an online community platform. It was one of the earliest Web 2.0 applications. In addition to being a popular Web site for users to share personal photographs, the service is widely used by bloggers as a photo repository. It hosts more than two [...]...
|
| |
|
| Install Ubuntu as Windows XP/Vista Application (with Wubi) |
| 2008-04-30 09:04:00 |
Today it is possible to install Ubuntu Linux 8.04 (Hardy Heron) under Windows XP or Vista without necessity to create separate partition for it. The tool that allows to do it is called Wubi. Actually it is Ubuntu installer for Windows helping you ro install and uninstall Ubuntu with few clicks. Here is nice brief [...]...
|
| |
|
| OpenBSD: Secure Mail Server with Postfix, MySQL, ClamAV, SpamAssassin, Amavis-new |
| 2008-04-17 03:23:51 |
Few days ago I started configuring corporate mail server that should be deployed on OpenBSD and comprise the following features:
Easy to configure and powerful MTA (Postfix)
Virtual domains and user accounts (this information is stored in MySQL database)
Antispam and antivirus checking for all accounts (spamassassin and clamav via amavis-new)
Secure access to mailboxes through POP3, IMAP and [...]...
|
| |
|
| ptunnel: send/receive TCP traffic via ICMP reliably |
| 2008-04-10 15:36:47 |
Yes, it can be useful sometimes. For example, you have access to Wi-Fi network but you're not allowed to access Internet via TCP/UDP as these protocols are blocked. At the same time ICMP is opened and you can ping everything alive in Internet. So, to check your email just have ptunnel installed and work around [...]...
|
| |
|
| Tiny perl script for UDP flooding |
| 2008-04-10 15:05:19 |
Sometimes it is necessary to perform UDP flood towards some network device(s) in order to test its behavior in stress… Actually I am sure that every system administrator might use this small perl script for this purpose. Certainly there are many special programs for this but believe me that it is much more easier [...]...
|
| |
|
| Copy files from Windows or Mac to Linux safely |
| 2008-04-07 09:32:51 |
Many systems administrators of LAN and WAN networks, which contain Windows, Mac and Linux hosts, once face the problem on how to securely transmit some data between these systems. It is always possible to use SCP when copying files between two Unix machines but what if you have to move files from Windows PC to [...]...
|
| |
|
| Nagios installation and configuration in SUSE Linux |
| 2008-04-07 06:57:01 |
As we know Nagios is extremely popular open source network monitoring system. It watches hosts across the local area network (LAN) and/or across the Internet, services that you can specify, alerting you when things go bad. The following step-by-step guide written by Novel people (actually by Rainer Brunold) for sure would help if you plan [...]...
|
| |
|
| 10+ advices BEFORE you rebuild Linux kernel |
| 2008-03-04 16:40:38 |
Many Linux newbies think that kernel recompilation is inherent and almost necessary thing to do after OS is just installed or some time later. By the following advices I would try to show these fellows in which situations this really makes sense and what to do if one persists
1. If you don't know why you should patch/recompile kernel - DO NOT DO THIS.
2. If your running kernel is smart and supports all necessary hardware, technologies and doesn't contain critical vulnerabilities - DO NOT REBUILD IT.
3. If you don't know what are kernel patches and why they are used - DO NOT REBUILD KERNEL.
4. If kernel with needed functionality is available as binary package for your distribution (especially in official repositories) - DO NOT BUILD KERNEL.
5. If you insist, certainly read Kernel HOWTO and notes about kernel recompilation in regards to your distribution.
6. Do change kernel config values only if you know what they mean.
7. Don't forget to build initrd before rebooting your system.
8...
|
| |
|
| Dell offers new Ubuntu preinstalled laptop XPS M1330 |
| 2008-01-24 03:17:56 |
Dell position XPS M1330 as one of the thinnest and lightest notebooks in its class, as really portable notebook (weight is under 4 pounds or 1.8 kg). On January 23, 2008 it was announced that Spain, Germany, France, UK consumers can purchase this notebook with Ubuntu 7.10 Linux pre-installed. As usually announcement was made [...]...
|
| |
|
| Fun: Windows vs. Linux for toasters |
| 2008-01-18 16:11:11 |
Last week both systems Microsoft Windows Vivid Toasting Technology (VTT) 2008 Starter Edition and Heatu Linux 9.06 (Dainty Toast) were released for modern toasters.
Yesterday Linux Screw has an opportunity to test both and the results were demonstrated at the Annual Bread Valley Conference at Jan 17 2008 in Texas, USA. Reactions were mixed as Heatu Linux 9.06 and Windows VTT went head-to-head.
Related PostsFun: How To Make Windows look like Ubuntu LinuxInstall Debian Linux from Microsoft WindowsSwitching from Windows to Linux help resourceInstall iTunes 7.2 in Ubuntu and other Linux distrosKeep files at Linux/Windows/Unix synchronized with Unison...
|
| |
|
| 10 good Unix habits to pick up |
| 2008-01-17 15:59:28 |
as usual provides us with excellent article about good habits which would help Unix administrators to improve their command line usage efficiency and break away from bad usage patterns in the process. I was impressed by this article and realized my everyday CLI usage is full of "bad patterns". Nice point to give up them [...]...
|
| |
|
| Sun acquires MySQL AB |
| 2008-01-16 07:53:05 |
Exciting news was published today at Jonathan Schwartz' (Chief Executive Officer and President of Sun Microsystems) blog:
We announced big news today - our preliminary results for our fiscal second quarter, and as importantly, that we're acquiring MySQL AB.
…
This puts products like MySQL in an interesting position. They're a part of every web company’s infrastructure, [...]...
|
| |
|
| Linux + 532Mhz CPU + 128Mb RAM + audio/video + Wi-Fi = Photoframe! Huh? |
| 2008-01-15 17:02:21 |
One of my favorite sites recently published entertaining brief article about Linux-based device. Just imagine photoframe with 0.5 Ghz CPU, 128 Mb RAM, up to 16Gb SD memory, MP3/MPEG-4 playback and Wi-Fi. Huh? No jokes, it’s upcoming Agfaphoto’s AF5080W product and below are it’s specs!
Processor -- Freescale i.MX31 SoC with ARM11 core clocked at 532MHz
Memory -- 128MB; 5-in-1 memory card reader supporting up to 16GB SD
Display -- 8-inch, 800x600 SVGA
Images -- JPEG, GIF, PNG, WMF
Audio -- MP3, WMA
Video -- H.264 AVI, MJPEG, MPEG-4 (and via networked STB, MPEG 1 and MPEG-2)
I/O -- WiFi, USB
Features -- slideshow, clock, calendar, alarm, and remote control
Frame -- tripod base with three interchangeable veneers: brushed aluminium, black plastic, and wood effect
As for me, I was impressed and little bit confused: I have internet gateway/proxy with lesser hardware running in our office! That server can't do animation-enhanced slideshow, doesn't have calendar, alarm functions and can't play video or audio. But above-mentioned digital photoframe can do it easily, as well as it can play video from STB (set-top box) and transfer data via Wi-Fi. Nice device among those that aren't worse buying however potentially are perfect gifts!
The toy is to be shipped by AgfaPhoto and developed by Sagem Communications. Hardware part is based on Freescale Semiconductor’s i.MX31 system-on-chip (SoC). There is no official information on pricing and/or availability, but if you're interested just wait until it appear at AgfaPhoto’s photoframes page.
Related PostsSolar + Tiny PC + Linux = SweeeetLinux Halloween! [pic]Anatomy of the Linux file systemWhat is a Linux guy doing at Sun?About...
|
| |
|
| Slackware + NetBSD = VoltaLinux |
| 2008-01-13 05:57:46 |
VoltaLinux is a GNU/Linux distribution based on Slackware and includes pkgsrc package system from NetBSD. Recently this project released 2.0 version of their distro where any system administrator can enjoy the clean design of Slackware and power of *BSD with the availability of more than 5900 ports ready to be installed. Basically VoltaLinux [...]...
|
| |
|
| KDE 4 Era begins |
| 2008-01-11 11:39:44 |
Today it was announced that KDE 4.0 is finally released and as it was proudly noted in press release, with this major version the KDE Community marks the beginning of the KDE 4 era.
K Desktop Environment was created in 1996 by Matthias Ettrich, who was troubled by UNIX certain aspects and proposed the formation of [...]...
|
| |
|
| Secure Linux/Unix system that runs OpenSSH |
| 2008-01-10 17:11:01 |
I came across invaluable article on how to make Linux system that runs OpenSSH server to be even more secure. It’s written by 17-year-old (!!!) Peter Upfold from FOSSwire and covers the following simple steps:
Disable SSH protocol 1
Enable key-based logins
Don’t enable password-based logins
Don’t run on port 22
No remote root logins
I found these tips invaluable and [...]...
|
| |
|
| Linux Foundation Podcast: Linus Torvalds |
| 2008-01-08 14:39:19 |
This one is the first podcast from Linux Foundation’s series "Open Source Visionaries". And it’s normal that it’s Linus Torvalds interview Podcast is now available in MP3 and OGG at LF’s Open Voices page. Transcript is here.
Jim Zemlin: You don’t love the kernel community, do you?
Linus Torvalds: Well, some people I worked with, I [...]...
|
| |
|
| Free Ubuntu 7.10 Desktop Course is available |
| 2008-01-08 14:09:37 |
I love Ubuntu! Today free Ubuntu 7.10 Desktop Course became available on Ubuntu Wiki as two pdf files: for students and instructors. Here are few points about this course:
There are 10 lessons in total with the last lesson covering Partitioning and Booting optional. The course is modular - 2 days if all lessons are [...]...
|
| |
|
| Sexy backgrounds for Ubuntu Linux. Part 2 |
| 2008-01-07 15:48:10 |
Below is the next portion of sexy wallpapers for Ubuntu Linux as well as for any other distributions and operating systems (previous set is here).
Related PostsSexy wallpapers for Ubuntu LinuxOctober Survey: People try many Linux distrosFun: How To Make Windows look like Ubuntu LinuxSwitch to Ubuntu from different Linux distros or other OSesUbuntu Linux and [...]...
|
| |
|
| Security Guide for Linux by NSA |
| 2007-12-24 02:22:43 |
The National Security Agency (NSA) recently issued security configuration guides for various operating system, including MAC OS X, Windows, Linux and Solaris. The published guides are used by the government and are pretty interesting.
Guide for Linux is presented as Hardening Tips for the Red Hat Enterprise Linux 5 and Guide to the Secure Configuration of [...]...
|
| |
|
| Latest nmap 4.50 is out. Must upgrade! |
| 2007-12-16 09:12:03 |
Nmap is well known open source tool for security auditing and many other related network exploring activities. Here is it’s developers' description taken from their site:
Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems [...]...
|
| |
|
| |
 |
