برچسب: web

اینفوگرافیک مقایسه بازیهای طراحی شده با Flash و HTML5

واژه اینفوگرافیک (Infographic) خلاصه شده‌ای از Information Graphic است. کتاب‌های کودکان، اخبار، نقشه‌ها و ارائه اطلاعات علمی، همه به نوعی از اینفوگراف به عنوان یک ابزار کارا استفاده می‌کنند. اینفوگرافیک ‌ها یا گرافیک‌های اطلاع رسان، نمایشگران تصویری اطلاعات و داده‌ها هستند. این نگاره‌ها در جاهایی که نیاز به توضیح ساده و یا سریع داده‌ها وجود دارد، استفاده می‌شوند.

(ادامه مطلب…)


Qmail mailbox usage report

As you may know, qmail is a mail transfer agent for Unix and Linux platforms. Nowadays, qmail has been using in many webhosting panels due to its special features like as its zero price.
The storage structure of qmail is Maildir, which means that every individual email message, has stored into a separate file. So performing the maintenance actions are easy.

In this tip, I want to show you how to find users with most used mailbox space:

1. Make an SSH session to the server (You need root account permission).

2. Find the qmail directory.

3. Use the “du” and “locate” commands together to make a mailbox usage report:

locate -b ‘\Maildir’ | xargs du -hs > /MailUsageReport.txt


Resolving error 500 of Joomla on Cpanel host

Error code of 500 is a well-known error for Joomla users on Cpanel. Usually when you want to login to administrator panel of Joomla, this error appears and you cannot login.
In such case, the website already shown correctly and users can login throw website login page but the super user cannot log in because any attempt to login via administrator/index.php blocked with Error 500.
Anyway, my solutions after some study and tests are as follow:
  1. Your login session time may be expired. Clean up your browser cookies and try again. To prevent happening of such error again, go to Joomla main configuration page and increase session expiration period.
  2. Your .htaccess file in httpdocs may be the reason. If you have any backup of this file, try restore (usually you have an htaccess.txt). You can also rebuild this file with online generators or copy this from any other installed Joomla host.
  3. Some files and folders permission may be wrong. Try changing the permission of configuration.php and all folders to 777 (change back them again after error repair).
  4. It may appeared by some Cpanel errors. Try cleaning the content of .trash and tmp folders on Cpanel root. You can also clean the tmp folder in Joomla root.
  5. Your database may need some repair. So go to phpMyAdmin and open your Joomla DB. Select all tables and then go to the bottom of the table list. Select the repair option from combo box.


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