Category Archives: Web technologies

Update to PHP 5.6 on CentOS 6 using remi repository

With CentOS being a conservative distribution, security patches are still applied to CentOS 6, but no new versions are available. When running some websites – like Virtualmin – on CentOS 6, the old PHP version 5.3.3 can cause problems. Updating to a newer … Continue reading

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Certificate Transparency and unauthorized certificates

I own a domain which was bought a few months back which is managed by CloudFlare’s service in DNS-only mode. As I intended to only use CloudFlare’s DNS service, I disabled every option except the DNS related features. You can imagin the surprise to see certificates issued for my domain without my knowledge. Continue reading

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My HTML-form mysteriously stopped working, why?

Nobody changed it, why is it not working anymore? You can imagine the confusion after checking the version control and the files which where unchanged since the time the website was finished (lets say about 4 years). Continue reading

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What version of Firefox is this user agent string?

Is it really a Firefox browser? When I was first shown the user agent string below and asked ‘what version of Firefox is this?’ At first I took this at face value, it’s obviously a Firefox browser, it says “Mozilla” right there, right? Digging a little deeper, it turned out not only was this wrong, but the question was wrong as well! …
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