Ahmed's Blog http://ahmedsaleh.net/blog Here you will find all about me ! Wed, 14 Mar 2012 16:50:32 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Count CPU threads in SSH (CentOS) http://ahmedsaleh.net/blog/count-cpu-threads-in-ssh-centos/ http://ahmedsaleh.net/blog/count-cpu-threads-in-ssh-centos/#comments Wed, 14 Mar 2012 16:50:32 +0000 Ahmed Saleh http://ahmedsaleh.net/blog/?p=211 To get the total number of CPU Threads in CentOS use One of the following Commands :

 

# grep -i processor /proc/cpuinfo | wc -l

OR

cat /proc/cpuinfo | grep -i ‘processor’ | wc -l

]]> http://ahmedsaleh.net/blog/count-cpu-threads-in-ssh-centos/feed/ 0 Add a Calendar Date Picker to a Form with jQuery http://ahmedsaleh.net/blog/add-a-calendar-date-picker-to-a-form-with-jquery/ http://ahmedsaleh.net/blog/add-a-calendar-date-picker-to-a-form-with-jquery/#comments Thu, 06 Oct 2011 17:00:55 +0000 Ahmed Saleh http://ahmedsaleh.net/blog/?p=206  

<!DOCTYPE html>
<html>
<head>
  <link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css" rel="stylesheet" type="text/css"/>
  <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
  <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js"></script>
  <script>
  $(document).ready(function() {
    $("#datepicker").datepicker();
  });
  </script>
</head>
<body>
<form>
    <input id="datepicker" />
</form>
</body>
</html>
]]> http://ahmedsaleh.net/blog/add-a-calendar-date-picker-to-a-form-with-jquery/feed/ 0 Target form/input elements by CSS http://ahmedsaleh.net/blog/target-forminput-elements-by-css/ http://ahmedsaleh.net/blog/target-forminput-elements-by-css/#comments Thu, 06 Oct 2011 16:43:37 +0000 Ahmed Saleh http://ahmedsaleh.net/blog/?p=204 Need to target the submit button of your form without adding a class or an id to it? This might come up if you don’t have access to the actual form code for some reason. Luckily CSS can be used to take care of this situation. It may not work in all version of Internet Explorer, but who cares, nobody should be using that browser anyway.

Here’s the magic CSS:

input[type="submit"] {color:#eee}

 

]]> http://ahmedsaleh.net/blog/target-forminput-elements-by-css/feed/ 0 ميزه جديده للفورم فى HTML5 – “form” http://ahmedsaleh.net/blog/%d9%85%d9%8a%d8%b2%d9%87-%d8%ac%d8%af%d9%8a%d8%af%d9%87-%d9%84%d9%84%d9%81%d9%88%d8%b1%d9%85-%d9%81%d9%89-html-form/ http://ahmedsaleh.net/blog/%d9%85%d9%8a%d8%b2%d9%87-%d8%ac%d8%af%d9%8a%d8%af%d9%87-%d9%84%d9%84%d9%81%d9%88%d8%b1%d9%85-%d9%81%d9%89-html-form/#comments Mon, 29 Aug 2011 01:24:24 +0000 Ahmed Saleh http://ahmedsaleh.net/blog/?p=193 السلام عليكم ,

هناك ميزه جديده فى HTML5

تسمح لك بوضع عناصر الفورم خارج تاج

<form>

مع امكانيه الإشاره إلى ان هذا العنصر ينتمى إلى فورم معين

تابع الكود التالى :

<form id=”contact_form” method=”get”>

<label>Name:</label>
<input type=”text” id=”name” name=”name”>

<label>Email:</label>
<input type=”email” id=”email” name=”email”>

<input type=”submit” id=”submit” value=”SEND”>

</form>

<textarea id=”comments” form=”contact_form”></textarea>

لاحظ ان العنصر <textarea>

يقع خارج الفورم و لكن تم الاشاره إلى انه يتبع الفورم عن طريق إضافه الميزه

form=”form_id”

مع مراعات إعطاء أى دى للفورم الرئيسى لتتمكن من الاشاره إليه

المتصفحات الداعمه :

  • Opera 9.5+
  • Safari 5.1+
  • Firefox 4+
  • Chrome 10+
]]> http://ahmedsaleh.net/blog/%d9%85%d9%8a%d8%b2%d9%87-%d8%ac%d8%af%d9%8a%d8%af%d9%87-%d9%84%d9%84%d9%81%d9%88%d8%b1%d9%85-%d9%81%d9%89-html-form/feed/ 0 Recovering a cPanel Server From a Crashed Hard Disk using rSync http://ahmedsaleh.net/blog/recovering-a-cpanel-server-from-a-crashed-hard-disk-using-rsync/ http://ahmedsaleh.net/blog/recovering-a-cpanel-server-from-a-crashed-hard-disk-using-rsync/#comments Thu, 18 Aug 2011 21:07:39 +0000 Ahmed Saleh http://ahmedsaleh.net/blog/?p=191 Rsync is another very powerful command that is used to synchronize 2 directories between servers and only transfer the new files to the server. This is a great method for backing up data as it is low on bandwidth and it is also commonly used to keep clustered servers working together. The ending slashes are very important when using rsync. If you are not familiar with how it works, always make sure to have an ending slash on both the source and the destination and it should be fine.

In case we fail or accidentally destroy our HDD then we can get a new HDD and operating system from the datacentre and restore the data on a new drive. This concept can be used to migrate cPanel Servers from one server to another without loosing any data or creating any sort of downtime for websites hosted on the server.

 

This is how it will work:

1) Get the partitions from both the drives with:

# fdisk -l

2) Check to see if there are any drives mounted with:

# df -h

3) Let us assume that /dev/hdb3 is our CRASHED old drive and it is mounted as /mnt/old (yours can be different), but keep in mind that you need to know the mount point of the backup drive before we proceed further with the steps below.

Let us mount the CRASHED HDD if not already mounted with:

# mount /dev/hdb3 /oldHD

4) Now that the drive is mounted you can browse any files with:

# ls /oldHD/home

5) We are all set to move our data over to the new drive:

Run these rSync commands to move everything over:

rsync -vrplogDtH /oldHD/usr/local/apache/conf /usr/local/apache
rsync -vrplogDtH /oldHD/var/named /var
rsync -vrplogDtH /oldHD/home/* /home
rsync -vrplogDtH /oldHD/usr/local/cpanel /usr/local
rsync -vrplogDtH /oldHD/var/lib/mysql /var/lib
rsync -vrplogDtH /oldHD/var/cpanel /var
rsync -vrplogDtH /oldHD/usr/share/ssl /usr/share
rsync -vrplogDtH /oldHD/var/ssl /var
rsync -vrplogDtH /oldHD/usr/local/cpanel/3rdparty/mailman /usr/local/cpanel/3rdparty
rsync -vrplogDtH /oldHD/var/log/bandwidth /var/log
rsync -vrplogDtH /oldHD/usr/local/frontpage /usr/local
rsync -vrplogDtH /oldHD/var/spool/cron /var/spool
rsync -vrplogDtH /oldHD/root/.my.cnf /root
rsync -vrplogDtH /oldHD/etc/httpd/conf/httpd.conf /etc/httpd/conf

cd to the old etc directory:

#cd /oldHD/etc

And copy some files from here:

#rsync -vrplogDtH secondarymx domainalias valiases vfilters exim* proftpd* pure-ftpd* passwd* group* *domain* *named* wwwacct.conf cpupdate.conf quota.conf shadow* *rndc* ips* ipaddrpool* ssl hosts /etc

6) We are done with the copying of all the files and cPanel should start recognizing all the old users and their files, but after we do all this it is highly suggested that you run all updates, and run the cPanel fix scripts i.e:

Updating software and restarting services:

#/scripts/upcp
#/usr/local/cpanel/cpkeyclt
#/scripts/sysup
#/scripts/exim4
#/scripts/easyapache (or apply this from WHM – search for easy apache)
#/scripts/securetmp
# /scripts/fixeverything

7) This is needed to update cpanel information. Please note, sshd might fail and not start after running fix everything. You have to login to whm, and go to the rpm installer and “FORCE” install opensshd-server, opensshd, opensshd-client and then restart sshd from whm.

Restarting services as:

#/scripts/restartsrv httpd
#/etc/init.d/mysql restart
#/scripts/restartsrv named
#/scripts/restartsrv exim

That is all we need to recover data from a CRASHED HDD.

 

Source : http://blog.eukhost.com/webhosting/restoring-cpanel-server-from-crashed-harddisk-or-migrating-cpanel-servers/

]]> http://ahmedsaleh.net/blog/recovering-a-cpanel-server-from-a-crashed-hard-disk-using-rsync/feed/ 0 Force the Backup System on cPanel server now http://ahmedsaleh.net/blog/force-the-backup-system-on-cpanel-server/ http://ahmedsaleh.net/blog/force-the-backup-system-on-cpanel-server/#comments Wed, 17 Aug 2011 22:16:15 +0000 Ahmed Saleh http://ahmedsaleh.net/blog/?p=185 use this command to force the backup system on the server right now .

 

#/scripts/cpbackup -force

or : –force

]]> http://ahmedsaleh.net/blog/force-the-backup-system-on-cpanel-server/feed/ 0 how to generate backup for all cPanel users in one step http://ahmedsaleh.net/blog/how-to-generate-back-for-all-cpanel-users-in-one-time/ http://ahmedsaleh.net/blog/how-to-generate-back-for-all-cpanel-users-in-one-time/#comments Mon, 15 Aug 2011 21:35:33 +0000 Ahmed Saleh http://ahmedsaleh.net/blog/?p=172 Using SSH :

#for i in `ls /var/cpanel/users`;do /scripts/pkgacct $i ; done

]]> http://ahmedsaleh.net/blog/how-to-generate-back-for-all-cpanel-users-in-one-time/feed/ 0 How to Update cPanel License file http://ahmedsaleh.net/blog/how-to-update-cpanel-license-file/ http://ahmedsaleh.net/blog/how-to-update-cpanel-license-file/#comments Mon, 15 Aug 2011 17:22:51 +0000 Ahmed Saleh http://ahmedsaleh.net/blog/?p=167 Using SSH :

#/usr/local/cpanel/cpkeyclt

]]> http://ahmedsaleh.net/blog/how-to-update-cpanel-license-file/feed/ 0 افضل خطوط جربتها اثناء كتابه البرامج http://ahmedsaleh.net/blog/%d8%a7%d9%81%d8%b6%d9%84-%d8%ae%d8%b7%d9%88%d8%b7-%d8%ac%d8%b1%d8%a8%d8%aa%d9%87%d8%a7-%d8%a7%d8%ab%d9%86%d8%a7%d8%a1-%d9%83%d8%aa%d8%a7%d8%a8%d9%87-%d8%a7%d9%84%d8%a8%d8%b1%d8%a7%d9%85%d8%ac/ http://ahmedsaleh.net/blog/%d8%a7%d9%81%d8%b6%d9%84-%d8%ae%d8%b7%d9%88%d8%b7-%d8%ac%d8%b1%d8%a8%d8%aa%d9%87%d8%a7-%d8%a7%d8%ab%d9%86%d8%a7%d8%a1-%d9%83%d8%aa%d8%a7%d8%a8%d9%87-%d8%a7%d9%84%d8%a8%d8%b1%d8%a7%d9%85%d8%ac/#comments Fri, 22 Jul 2011 03:28:19 +0000 Ahmed Saleh http://ahmedsaleh.net/blog/?p=165 Courier New

Consolas

و هذه بعض الخطوط الاخرى التى يمكن ان يفضلها البعض اثناء كتابه البرامج و الاكواد

1. Arial
One of core Windows fonts, Arial is often overlooked, but it is a clear and readable typeface. It can be a little difficult to distinguish between uppercase i / lowercase L and nested single/double quotes but that can be said of many proportional fonts. Most systems have it installed, but Arial is also available from SourceForge.

Arial

2. Bitstream Vera Sans
Bitstream Vera is a free font developed for the GNOME project but is available on other platforms (download Bitstream Vera).

Bitstream Vera Sans

It is a great-looking typeface and, personally, I prefer it to…

3. Bitstream Vera Sans Mono
This is a monospaced version of Bitstream Vera Sans which many programmers will prefer. I find it a little wide, but characters are certainly easier to identify. It is available in the Bitstream Vera Sans download above.

Bitstream Vera Sans Mono

As an alternative, you might prefer DejaVu Sans Mono; it is based on Bitstream Vera but offers a wider range of characters (download DejaVu).

4. Consolas
Consolas is a relatively new Microsoft font that is installed in Vista or available as a separate download. It is a very clear and compact monospace font and is being used by more developers.

Consolas

5. Dina
Dina is my favorite monospace font and, for clarity, it is hard to beat (download Dina). It is available in 8, 9 and 10-point text sizes and looks great on any system.

Dina

6. Lucida Console
Microsoft likes Lucida Console: it is the font of choice for Notepad and the Blue Screen of Death! It reminds me of a sans-serif version of Courier New, but certainly looks better.

Lucida Console

7. Lucida Sans
If Lucida Console is a little too chunky for your tastes, try Lucida Sans. The font has been provided with Microsoft Windows and Office for many years and is a compact, practical font that looks very attractive.

Lucida Sans

8. Monaco
Monaco started life on the Mac and is one of the more popular fonts on that platform (download Monaco). I find it a little too fancy on Windows but many developers will disagree.

Monaco

9. MS Sans Serif
Perhaps this is slightly controversial, but it is my default font of choice. MS Sans Serif was introduced in Windows 1.0 and used to be known as “Helv”. It was the default Microsoft system font until they replaced it with Tahoma in Windows 2000. The font was also used in the early MS Office VBA environment and that was where I became overly familiar with it!

The font is similar to Arial and suffers from the same issues, but I find it a little clearer. Although I have tried to move away from MS Sans Serif on several occasions, I always eventually return.

MS Sans Serif

10. Proggy fonts
The Proggy collection contains small monospace bitmap fonts that maximize the amount of code you can view on-screen (download Proggy). It has been designed for programmers so it does not exhibit the character problems of other fonts. For Notepad fans, there is also a version that provides bold punctuation and brackets within the font itself.

Proggy Clean

]]> http://ahmedsaleh.net/blog/%d8%a7%d9%81%d8%b6%d9%84-%d8%ae%d8%b7%d9%88%d8%b7-%d8%ac%d8%b1%d8%a8%d8%aa%d9%87%d8%a7-%d8%a7%d8%ab%d9%86%d8%a7%d8%a1-%d9%83%d8%aa%d8%a7%d8%a8%d9%87-%d8%a7%d9%84%d8%a8%d8%b1%d8%a7%d9%85%d8%ac/feed/ 0 طريقه اغلاق الكمبيوتر بعد وقت معين windows xp , vista , 7 http://ahmedsaleh.net/blog/%d8%b7%d8%b1%d9%8a%d9%82%d9%87-%d8%a7%d8%ba%d9%84%d8%a7%d9%82-%d8%a7%d9%84%d9%83%d9%85%d8%a8%d9%8a%d9%88%d8%aa%d8%b1-%d8%a8%d8%b9%d8%af-%d9%88%d9%82%d8%aa-%d9%85%d8%b9%d9%8a%d9%86-windows-xp-vista/ http://ahmedsaleh.net/blog/%d8%b7%d8%b1%d9%8a%d9%82%d9%87-%d8%a7%d8%ba%d9%84%d8%a7%d9%82-%d8%a7%d9%84%d9%83%d9%85%d8%a8%d9%8a%d9%88%d8%aa%d8%b1-%d8%a8%d8%b9%d8%af-%d9%88%d9%82%d8%aa-%d9%85%d8%b9%d9%8a%d9%86-windows-xp-vista/#comments Tue, 19 Jul 2011 16:28:00 +0000 Ahmed Saleh http://ahmedsaleh.net/blog/?p=161 Start -> RUN

Type : shutdown -s -t 3600

3600 = time in seconds !

———

للتراجع عن الامر , فى نفس النافذه اكتب :

shutdown -a

]]> http://ahmedsaleh.net/blog/%d8%b7%d8%b1%d9%8a%d9%82%d9%87-%d8%a7%d8%ba%d9%84%d8%a7%d9%82-%d8%a7%d9%84%d9%83%d9%85%d8%a8%d9%8a%d9%88%d8%aa%d8%b1-%d8%a8%d8%b9%d8%af-%d9%88%d9%82%d8%aa-%d9%85%d8%b9%d9%8a%d9%86-windows-xp-vista/feed/ 0