Tech geek. Life geek.
After I change my old smartphone to LG Q6, I would like to transfer all apps to it. I used Google Authenticator for a bunch of websites as the Two-factor Authentication. I just found Google Authenticator cannot move all these...
I tried a IPv6 only VPS. It has no IP v4 address. It is always error connection when I tried to use an IP v6 to connect it. Here is some new knowledge for me. Use a pair [] around...
My site is moved to another VPS, but still with Linode. This time, it is at Fremont, CA. As I mentioned in my last post, the CPU is E5-2697 v4. There is a few changes on the default VPS. Turn...
My new server uses Nginx as a web server. When I check the error log of it, I saw a lot of warnings. 2016/08/27 07:30:03 [warn] 11951#11951: *590544 an upstream response is buffered to a temporary file /var/cache/nginx/fastcgi_temp/3/28/0000008283 while reading...
When you saw this post, it means the blog is moved to a new server at Linode. New server is a little bit better than the old one at DigitalOcean. Here is how old server looks like: Operating system ...
It is good to know that Amazon AWS service adds new edge locations in Montreal and Toronto for Cloudfront. I hope it will be soon to have a new edge in Canada West, such as Vancouver. Amazon CloudFront adds new...
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...
Now, a lot of web site are going to add SSL for security purpose. Just like my site here, the SSL Report is as below. It is A+. The score is great. When I look at it close. There are...
To provide higher security and better privacy protection, I added SSL certificate on my Blog, here. When you enter the url of my blog: http:///www.yinfor.com/, it will redirect you to the SSL version, https://www.yinfor.com/ The certificate is purchased from gogetssl.com...
When I wrote my last post about the SSL issue of Burnaby City Website, I made a tweet and @cityofburnaby. They replied me on second day. The official account of CityofBurnaby said the information has been forwarded to their IT...
It is an error. When I enter the url of Burnaby City hall at Chrome browser on my cellphone, it displayed with error. Red crossing line on the https. It said Your connection is not private. Attackers might be trying...
I have a web site, which was powered by Nginx 1.7. The SPDY 3.1 was enabled. Later last week, I upgraded it to Nginx 1.9.7 mainline version. HTTP/2 already built with Nginx from version 1.9.5. Why not enable HTTP/2? I...
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 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...