xFelix
xFelix

Computers and Internet
Archives

Pihole is DNS based Ad blocking solution. It can also be used to enhance your home network security by filtering out malicious domain and provide privacy protection by p…

   36   2020-09-16   0 Read More

What are PTR Records? PTR records (short for Pointer Records) are used to perform a Reverse DNS lookup. As you probably know, DNS (Domain Name System) is sort of a p…

   31   2020-09-09   0 Read More

Long story short, this post will guide you to create your own mail server instead of looking for mail hosting service around the whole Internet. Background Like most g…

   61   2020-08-27   0 Read More

I wrote a previous blog talking about how to issue and install letsencrypt ssl cert on Synology 3 years ago. I also participated in updating the early version of Synolog…

   1,502   2020-04-17   19 Read More

Since upgrade macOS to 10.15 Catalina, 32bit applications are no longer supported. It causes mac user some inconvenience to continue use legacy applications. A typical c…

   1,670   2020-03-06   4 Read More

I am exploring use case of Cloudflare Workers these days. One of useful function is to leverage Cloudflare workers to serve as edge cache to speed up website load time a…

   479   2020-01-17   2 Read More

The HTTP response headers that allow us to configure and deploy security features on our site. There are headers like Content Security Policy, Strict Transport Security,…

   360   2020-01-13   0 Read More

There's lot of tips and recommendations of cruise trip preparation. As a tech person, I summarized some tips focusing on IT technology based on recent cruise trip which …

   380   2020-01-02   0 Read More

There's bunch of instruction talking about how to reset password on raspbian. But they all require physical access to the raspberry pi and take out the SD card and need …

   686   2019-08-27   0 Read More

The IT technologies are changing from closed on premise infrastructure to cloud platform. Security is no longer segregated trusted zone but more zero trust approach. Wha…

   434   2019-07-17   0 Read More
Load More