Tech geek. Life geek.
It is 2016, your website must be SSL encrypted. Now, you have questions, how about my server and how about my SSL installation? This is the answer to this question. You must try these five free tools to test, check,...
Now my Blog, David Yin Blog is https encrypted . And it is also HSTS enabled. And latest, it is HSTS preload enabled. It has three layers meaning. https support. HSTS enabled. HSTS preload enabled. Let me explain them one...
It is a test bed on a VPS. Here is the basic information of it. Ubuntu Linux 14.04.3 Linux 3.13.0-71-generic on x86_64 Intel(R) Xeon(R) CPU L5520 @ 2.27GHz, 1 cores 512MB Memory Nginx 1.9.9 PHP 7.0
Here is a notes for Email Server Settings. It is not just for Email server. It is mainly for DNS setting for Email server. The purpose of it is to prevent from your outgoing email into spam box. I have...
I know how to remove old Kernels on Ubuntu. But, I don’t know how to do it on CentOS. After googling, I found answer. Go through and see how many kernels here. Three kernels in machine. Delete, remove old kernels.
This how-to is made on Centos6.7 64bit. It is a phpBB forum in Chinese with more than 680K posts. If I use phpBB native Fulltext or MySQL Fulltext search, the search tables are over 1.4GB. Too big. And it is...
It is a error when I tried to connect an FTP server by LFTP tool. I did a search on Google and find the answer. There is self signed certificates which is used by TLS on a ftp connection. It...
I have tried some tools to diagnose my SSL certificate installation. Some related to correct certificate, and more on certificate chain issues. SSL Certificates are trusted from its parent, or issued by its high lever certificate. It looks like a...
Here is the guide to show you how to install the Comodo SSL certificate in Nginx. Order Comodo Certificate. And received the Certificate files. I don’t discuss how to get it, where to get it. It is another topic. You...
There are some popular desktops in Linux Environments. KDE – a Graphical desktop that is similar to the Microsoft Windows Xfc – a lightweight but fully functional graphical desktop Gnome – a historically popular desktop that is the default desktop...
Yes, it is the Raspberry Pi I mentioned yesterday. I let it on more than eight hours, then I start to run the UnixBench test. Look at the result: I will repeat the test after a reboot. see if it...
I found some errors in Google Search Console — Crawl Error. More than 400 errors of Not-Found. After checking the details of these errors, I am noticed that they are the dead links which were brought after I converted this...
There is a error when I tried to resize the VirtualBox hard disk, or vdi file. Progress state: VBOX_E_NOT_SUPPORTED VBoxManage.exe: error: Resize hard disk operation for this format is not implemented yet! The command I used to resize vdi...
FastCGI sent in stderr: “PHP message: PHP Parse error: syntax error, unexpected end of file in /your_path/yourscript.php on line 308” while reading response header This is the error when I check the php log file. Because I met the blank...
The same script php file, always works smoothly on HHVM 3.2 to HHVM 3.5. Until I upgrade it to HHVM 3.6. It is a simply script which use mysqli connection and so on. Now it is shown the error as...