IIJ Technology (archives)

" IIJ Technology "Cache Engine Comparison (1/3)"

June 12, 2012
(Original Japanese article translated on December 19, 2012)

To handle client access efficiently, major sites deliver content by operating some form of reverse proxy in addition to origin servers that store the original content. First, we examine the content cache functions (cache servers) of products that can be used as reverse proxies.

Cache Engine Comparison (1/3)

" IIJ Technology "Cache Engine Comparison (2/3)"

June 19, 2012
(Original Japanese article translated on December 19, 2012)

In the first part of this article, we explained the roles expected of cache servers, and gave an overview of cache servers and cache engines. Here we go into further detail, and discuss tests carried out by IIJ comparing the Varnish Cache, Apache Traffic Server, and nginx cache engines.

Cache Engine Comparison (2/3)

" IIJ Technology "Cache Engine Comparison (3/3)"

June 26, 2012
(Original Japanese article translated on December 19, 2012)

In the first and second parts of this article, we examined the role of cache servers, and gave an overview of cache servers and cache engines. We also discussed the results of comparative tests that IIJ carried out, with a focus on Varnish Cache and Apache Traffic Server. In this final part, we cover nginx.

Cache Engine Comparison (3/3)

The Up-And-Coming "Node.js" Server-Side JavaScript Runtime Environment

July 31, 2012
(Original Japanese article translated on December 12, 2012)

"Node.js" is currently a hot topic among software developers. In the first half of this article we describe the road leading to the creation of Node.js as well as the history of its development. In the latter half we examine the technical aspects of Node.js, giving an outline of its architecture, and looking at future issues and prospects.

The Up-And-Coming "Node.js" Server-Side JavaScript Runtime Environment

HTML5 Next-Generation Application Platforms

October 13, 2011
(Original Japanese article translated on December 12, 2012)

An overview of the features of HTML5, which is gaining prominence as a technical specification for next-generation application platforms, and a look at the "HTML5 Radio" application that received top prize in the ASCII Art category of the "0th HTML5 Programming & Creative Contest".

HTML5 Next-Generation Application Platforms

DTV Delivery and Other IIJ Streaming Technology Development

November 9, 2011
(Original Japanese article translated on October 3, 2012)

The implementation and operation of applications developed in the U.S. was a big issue in the 1990s. Now it is more and more common for IIJ to develop its own applications, including a DTV delivery server and an independently-developed player. Here, we look at these development projects in context, and discuss future prospects.

DTV Delivery and Other IIJ Streaming Technology Development

Mobile Device Management

November 14, 2011
(Original Japanese article translated on September 21, 2012)

The use of smart devices is growing fast as a new way of doing business. However, in many cases the question of how to manage these devices is an issue. Here, we take a look at MDM (Mobile Device Management), which is attracting attention as a solution to this problem.

Mobile Device Management

MVNO LTE Access

February 27, 2012
(Original Japanese article translated on September 21, 2012)

IIJ launched an LTE (Long Term Evolution) mobile access service in February 2012 to compliment the 3G mobile access service that it has provided since January 2008. Attention is mostly focused on speed and delays for LTE, but here we will touch upon 3G and LTE equipment and access methods.

MVNO LTE Access

The Architecture of the Mighttpd High-Speed Web Server

May 29, 2012
(Original Japanese article translated on September 11, 2012)

The IIJ-II Research Laboratory began development of a Web server called Mighttpd (pronounced "mighty") in Fall of 2009, and has released it as open source. Through its implementation we arrived at an architecture that has enhanced multi-core performance while maintaining code simplicity. Here we take a look at each architecture one at a time.

The Architecture of the Mighttpd High-Speed Web Server

IPv6 Technology

IPv6 is the successor to IPv4, which is the current IP protocol version used on the Internet.IIJ is taking the initiative internationally in offering services based on IPv6.

IPv6 Technology

Source Address Validation

Source Address Validation is a technology used to verify whether the source of an IP packet is legitimate.

Source Address Validation