Code Injection prevention – user names

Code injection is where a malicious user uses a text box to add HTML that they’ve written to your webpage. … Continue reading →

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301 is the right number for permanent dynamic redirect

Use a server-side 301 redirect if you need to change the URL of a page as it is shown in … Continue reading →

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Rename repos won’t help unless extension renamed

You try to install specific php package from the default repo, but because of package dependencies yum provides another package … Continue reading →

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Yum is very usefull command

CentOS has yum – very useful command for package management. Usage: yum [options] COMMAND List of Commands: check Check for … Continue reading →

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WordPress rewriting rules

Posts in WordPress do have excellent support for rewriting rules and for saving the old slugs automatically. We wrote about … Continue reading →

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Regular Expression teach class

IN PHP regular expression there can be two types. Posix and PERL. Similar but let’s use PERL syntax, because PERL … Continue reading →

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Creating mp4 videos using recordmydesktop on CentOS

On CentOS I have great program recordmydesktop that creates videos in native ogv format. I use the ffmpeg tool to … Continue reading →

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YouTube video duration pattern matching

You need to get the YouTube video duration in seconds. Here is a little pattern matching function that can help … Continue reading →

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Connecting two Linux computers via LAN network to share folders

Most natural way to connect two Linux computers to share folders would be the SSH protocol. In case you don’t … Continue reading →

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css selectors

  Selector Example Example description CSS .class .intro Selects all elements with 1 #id #firstname Selects the element with id=”firstname” … Continue reading →

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Disable trackbacks

WordPress is capable to receive and send pings/trackbacks from and to other sites. The difference between pings/trackbacks is: trackbacks are … Continue reading →

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