True high availability
Cloud hosting, 100% up-time, server high availability… These words have become very popular and attractive. And then it’s you, who needs hosting for a valuable […]
Continue reading »How to generate SSL key and certificate request (CSR)
May control panels offer this function (e.g. cPanel), but sometimes you might want to do it the old way – that is – manually. Here […]
Continue reading »PayPal SSL certificate upgrade and curl fix
PayPal has notified, that their SSL certificates will soon be upgraded to SHA-256. As we have previously communicated to you, PayPal is upgrading the certificate […]
Continue reading »Webpage speed measuring tools
You have probably heard, that Google will include page access time into page ranking calculation. Basically – faster your page loads – better rank you […]
Continue reading »How to find biggest subfolder
This little command will give you list of folders, sorted by their size: du -sk * | sort -nr | more
Continue reading »Only allow to view images from a folder with simple .htaccess file
Once in a while my beloved hackers upload their shitty files into image folder (basically they use some plugin for image upload). In most cases […]
Continue reading »How to flush RAM on Linux / Centos
I personally suggest using first option, other are more and more “hardcore”. Also I would not suggest doing this under high CPU load or high […]
Continue reading »How to test your SSL certificate
Some people might think, that if webpage has SSL certificate – it is 100% safe to browse it. Website owners might think, that having SSL […]
Continue reading »Set folder to readonly mode in Linux
Very often, when website is hacked – we do clean it for customer, because we do not want to have hacked content on our servers. […]
Continue reading »Find modified and hacked files
Finding files, uploaded and left by hackers, as well as files, which they have modified, is a complex event. It might be enough with one […]
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