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…
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…
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…
Recently I dealt with a cyber security attack using MS Office365 3rd party app to grant access to senior staff's email data. This is something new and advanced targeted …
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…
For macOS users, XQuartz is a must have supporting app to run Windows application on macOS. However, XQuartz the latest version is 2.7.11 which hasn't been updated since…
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…
The fraud landscape is a moving target, and this means that merchants must be ever vigilant against fraud threats. A great deal of merchant focus is on stopping friendly…
Background Some companies are still using legacy VPN technology for employee and contractors to access on premise system remotely. Under the cloud trend, more and mo…
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