Schaake.nu

Robots

Gepost in /Software op 29 Juni 2012
Deze blog is geschreven door Christiaan Schaake

Nowerdays the Internet consists of bilions of Web pages all over the world. There are no road signs that direct visitors to your site. So if you have not enough money to start a huge advertizement campain, you are stuck with search engines. Search engines are used to find specific information on the Internet. Search engines are constantly crowling (looking) over the Internet and indexing milions of pages per day. You can easily add your page to the seach engines work list. So within a couple of weeks the search engine will crowl over your page.

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SSL-Manual

Gepost in /PHP ontwikkeling/Software op 29 Juni 2012
Deze blog is geschreven door Christiaan Schaake

This guide explains how to setup a root certification authority (CA) on Linux, and how to implement apache ssl on Linux. A Certification Authority (CA) holds a selfsigned key that is able to sign other keys. Large commercial CA's like Verisign use this exact same procedure as described in this document. Only these commercial CA's have installed there root certificate within the most browsers, so you don't have to manualy install the root certificate of Verisign. Microsoft and Netscape did already do this for us. You can use a Verisign certificate for your own HTTPS server, but this is very expensive. But we can create our own CA, the only thing your visitors have to do is install your root certificate. We can use our CA to sign any certificate, like for HTTPS, SSH, VPN, E-Mail and any other application that can use a certificate.

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Encoding

Gepost in /Software op 29 Juni 2012
Deze blog is geschreven door Christiaan Schaake

Unicode Transformation Format is a way of describing a large set of characters (including all western, arabic, chinese etc.) in a uniform way. The characters can be encoded using multibyte (UTF-8), double byte (UTF-16) or four byte encodings (UTF-32). Officially the encoding is spelled as case insensitive UTF dash 8, 16 or 32 and optionally BE or LE for big endian or little endian (e.g. UTF-16LE or utf-8).<br/> There are 3 types of encoding which must match for an XML file.

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ESXi-Server

Gepost in /Hardware op 25 Maart 2012
Deze blog is geschreven door Christiaan Schaake

Mijn huidige server, welke 24 uur per dag 365 dagen per jaar aan staat, verbruikt momenteel gemiddeld 100 watt per uur. Hiermee is de server een grote verbruiker immers 100 watt per uur is (100 * 24 * 365) 876 KWatt per jaar. Dit komt neer op alleen ca. 190 - 200 euro aan elektriciteit kosten. Ik heb inmiddels al geëxperimenteerd met de software op deze server, echter zonder enig resultaat. Blijkbaar is de 100 watt het minimale verbruik van de hardware. Dus nieuwe hardware.

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