nginx: Setup SSL Reverse Proxy (Load Balanced SSL Proxy)

Source: http://www.cyberciti.biz/faq/howto-linux-unix-setup-nginx-ssl-proxy/
A reverse proxy is a proxy server that is installed in a server network. Typically, reverse proxies are used in front of Web servers such as Apache, IIS, and Lighttpd. How do I setup nginx web server as SSL reverse proxy?

Reverse proxy with Apache

Source: http://opentodo.net/2012/08/reverse-proxy-with-apache/
Reverse proxy is very useful when We need Load balancing web requests or ensure our web servers for possible attacks.

The Benefits of a Reverse Proxy

Source: http://mikehadlow.blogspot.com/2013/05/the-benefits-of-reverse-proxy.html
A typical ASP.NET public website hosted on IIS is usually configured in such a way that the server that IIS is installed on is visible to the public internet.

Nginx reverse proxy to a few back end web servers

Source: http://centminmod.idglabs.net/?p=152
A reverse proxy is a type of proxy server that retrieves resources on behalf of a client from one or more servers. These resources are then returned to the client as though it originated from the reverse proxy itself. Reverse proxies are a great way to reduce the load on any one machine as well as help secure the web cluster from external influences. Some advantages for using a reverse proxy (source wikipedia) are:

Reverse Proxy with Multiple Backend Web Servers

Source: http://wiki.squid-cache.org/ConfigExamples/Reverse/MultipleWebservers

Warning: Any example presented here is provided "as-is" with no support or guarantee of suitability. If you have any further questions about these examples please email the squid-users mailing list.

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Adding custom columns/fields to Joomla article, section and user

Run:
ALTER TABLE `jos_content` ADD `article_image` VARCHAR( 255 ) NOT NULL
in for instance phpMyAdmin.

25 Excellent Ajax Techniques and Examples

Source: http://sixrevisions.com/ajax/ajax_techniques/
Ajax allows for rich-internet applications that mimic the responsiveness and complex user interfaces typically associated with desktop applications.

Hide Joomla Subdirectory (Subfolder)

Source: http://joomlawebhosting.ca/joomla-15-tips/57-hide-joomla-subdirectory-subfolder.html
Instead of installing Joomla in the web root (public_html), some like to put
the Joomla files in a subfolder for better housekeeping.

Tạo vị trí mới trong template joomla 1.5 và 2.5

Mở file chứa template của bạn, chẳng hạn "\templates\thuvientapchi\index.php", xác định chỗ mà bạn muốn thêm một vị trí module mới và đặt vào đoạn mã sau:

Tải tập tin bằng lệnh wget trong linux

Nguồn: http://khanh.com.vn/post/2011/04/11/Tai-tap-tin-bang-lenh-wget-trong-linux.aspx

1. Tại sao dùng wget?

Trong môi trường UNIX/Linux, chúng ta có thể di chuyển tới các thư mục một cách nhanh chóng bằng lệnh cd (change directory) trong cửa sổ lệnh Terminal.