Sina Salek Official Site - Linux

Sometimes i really hate yum and specially yum fastmirror plugin!

admin — Sun, 04 Jan 2015 17:44:45 +0000

Sometimes i really hate yum and specially yum fastmirror plugin!

We upgraded PHP to 5.6 on our Linux server today, and i'm satisfied with the result :)

admin — Fri, 28 Nov 2014 11:20:48 +0000

We upgraded PHP to 5.6 on our Linux server today, and i'm satisfied with the result :)

We're using VMware as our virtualization solution for about 5 years, except hardware compatibility it's great.But we ...

admin — Thu, 12 Sep 2013 21:54:14 +0000

We're using VMware as our virtualization solution for about 5 years, except hardware compatibility it's great.But we may give KVM a shot too

Finally managed to enable fcgid on apache 2.4, tricky

admin — Fri, 06 Sep 2013 10:38:00 +0000

Finally managed to enable fcgid on apache 2.4, tricky

For many hard core developers, having a job as kernel developer is a dream come true, but it can also be a nightmare :)

admin — Tue, 03 Sep 2013 20:38:03 +0000

For many hard core developers, having a job as kernel developer is a dream come true, but it can also be a nightmare :)

Is Linux as Vulnerable to Virus attacks as is Windows

admin — Wed, 28 Jul 2010 15:19:25 +0000

In the past few years i read and heard many times that the reason for Windows' vulnerabilities and specially virus attacks is simply because much more computers are running it and it could have been the same for Linux (aka GNU/Linux)!.

First of all i'm glad that this kind of discussions are pupping up so often these days, because it means that Linux's user base is increasing and it attracts more attention everyday. However this point of view also shows its authors' limited understanding of how GNU/Linux and Open Source community work. GNU/Linux is NOT WINDOWS, yes they're both operating systems but they have many fundamental differences. Lets highlight some of these differences and see how they affect the main topic of this article.

Another way to mirror two folders under Linux & Windows

admin — Tue, 27 Jul 2010 14:08:03 +0000

There are many tools and utilities for syncing files and folders, and yet there are even more. In this tutorial i'll introduce you to several reliable free command line and visual utilities for mirroring a folder into another folder.

This tutorial was originally part of another article but i came up with a much better solution for that one and there was no longer any need for this part so i decided to publish it as separate tutorial. It's not unique but all the same some people may find it useful.

Moving Users, Document and settings, or Home folder to another partition or disk

admin — Wed, 23 Jun 2010 18:03:40 +0000

System partition (Where operating system is installed) is usually target for viruses, bad sectors, out of disk space (Which is quite common in Windows Vista and the next versions due to the winsxs folder's uncontrolled size increase) specially in Windows. You may need to re-install or even format your entire system partition, in situations like this the main problem is how to backup your data if your haven't lost it already!! Although it's possible but it's not easy, Unlike Linux , Windows does not have any official live CD so you would have to use command line or connect your disk to another system and wait until it backups your data and then you can start re-installing Windows, it's a very time consuming process and not every one has multiply OSs or PCs.

Using a different disk for users' data can also improve performance in Multi Tasking. Also If you're a Linux user there is another advantage. Using another partition for users's data allows trying other distributions - which is quite common among Linux users - without having to be worried about data loss.

Firefox on Debian/Ubuntu/Kubuntu and Adobe Flash Player issues

admin — Sat, 27 Feb 2010 01:52:02 +0000

After installing Firefox 3.6 on my Kubuntu using repositories here i realized that it can no longer play flash contents! I did a little bit search and found this solution. Unfortunately it didn't fix my problem so i decided to run firefox from terminal in order to see what's really wrong.

Linux Shell Bridge (Passing variables from scripting langauges like PHP to Linux Shell)

admin — Thu, 18 Feb 2010 19:21:09 +0000

It might sound strange at first but i must say that it's very useful specially if you have shell scripts as part of your application. Usually For making this scripts as automated as possible there should be a way to reuse the application's configurations (ips, passwords , etc) and not having to update a separate configuration file whenever anything changes in the application. It's not limited only to this and can be used to pass any kind of variables.

How to mirror/sync a remote ftp folder with a local folder

admin — Mon, 04 Jan 2010 11:46:31 +0000

lftp is one of the best utilities currently avaiable for working with ftp servers.

How to find Linux bash script path (Self Path)

admin — Mon, 04 Jan 2010 03:30:47 +0000

Writing smart programs using bash script is not easy, there are many issues along the way and one of them is what i'm going to describe here.

Sometimes it's require for bash scripts to know their location, for example when they are part of a package and there are other require files (on the same location) for them to run properly, and it's also not possible to change the path to where they're located simply because they also need the current directory.

Get the latest Linux Kernel news in the simplest way

admin — Sat, 12 Dec 2009 17:20:53 +0000

Linux Kernel is the heart of the opensource movement, because it allows users to have a complete open source operating system. With every release it brings lots of cool new features to the Linux community. Although it's very important piece of software, propely the more important the any other software in open source community it's unknown to many users. The are two reasons for this.

Update/Upgrade/Install XAMPP (LAMPP) modules by Compiling

admin — Sat, 24 Oct 2009 05:37:28 +0000

This article is not finished yet and it might not work for you at all, if you're still interested you can subscribe to its rss so you will be noticed whenever i update it.

XAMPP source code http://www.nat32.com/xampp/index.htm

http://www.apachefriends.org/f/viewtopic.php?f=16&t=34411

Issue : INIT: no more processes left in this runlevel [SOLVED] !!

admin — Thu, 22 Oct 2009 11:55:14 +0000

Issue : INIT: no more processes left in this runlevel

This is one of the issues i had for several months, i couldn't find any specific information about it and never had time to trace it in order to find a solution. But today i managed to fix it by reading many threads and articles and then tracing it from the beginning , since i'm not the only one with this problem i decided to share it.

I used CentOS 5.3 for this tutorial , but it might be still useful even if you're using a Debian based distribution.

Most of my posts are related to Linux , But what is linux?!

admin — Tue, 20 Oct 2009 11:06:51 +0000

As you might have already noticed most of my blog posts and tweets are related to Linux. Unfortunately not everyone knows about Linux so i guess it's time to introduce it.

CentOS/RHEL5 does not detect some onboard network cards +Videos

admin — Fri, 09 Oct 2009 18:08:08 +0000

CentOS's kernel is a very old kernel comparing to many other distributions. The reason is stability but some times it gets annoying.

For example today i wanted to upgrade CentOS 5.2 server at work to 5.3. to make this process as trouble free as possible i cloned the server into another computer but once it booted , i noticed that it doesn't detect new computer's on board network card! and it was impossible to do the upgrade without Internet.

How to dump all MySQL databases into indivisual files at once

admin — Mon, 14 Sep 2009 16:26:19 +0000

I had to move 264 databases from one Linux server (Fedora) to another (CentOS), hard copying /var/lib/mysql wasn't a good idea because version of two MySQL databases were different and i had to repair all the tables after move so i decided to write a very short and usefull bash script.

It dumps all the databases but each database into a different file :

Ubuntu 9 released!

admin — Fri, 01 May 2009 00:22:59 +0000

I just installed on my VirtualBox (Both Kubuntu and Ubuntu) , fast and solid. Kubuntu because of KDE 4 it still has various issues, as i said before KDE 4 is my desktop choice so i won't move my workstation to Linux until it become stable :).