Blog Enabled New Domain ring0.me

On May 16, 2013, my blog got a top-level domain bojieli.com. On January 6, 2015, I registered and enabled a new domain ring0.me (it’s the number 0, the font looks like the letter O).

Ring0 is the highest privilege level in the CPU architecture, and the code running at the Ring0 level interacts directly with the physical hardware. The concept of privilege level can be traced back to MULTICS in the 1960s. In the x86 architecture, ring0 represents the operating system kernel and kernel drivers, as opposed to user-mode applications that usually run in ring 3. The first time I heard about ring0 was in an article about rootkits when I was in junior high school and was very curious about “hacker” technology. Shamefully, I still can’t write a rootkit.

My blog uses the domain ring0.me to show that my main interest is in building the foundation of computer systems and networks through research and technology.

Registering ring0.me was because I felt that the full-spelled domain name bojieli.com didn’t look geeky enough. I considered multiple unregistered domain names such as rdma, ssh22, http80, tcp80, printk, reisub, etc., but in the end, I still thought ring0 was better.

The original bojieli.com has already HTTP 301 redirected to the corresponding page of ring0.me. Due to the policy restrictions of StartSSL, SSL certificates can only be applied for three days after domain registration.Deployed the SSL certificate on January 17.bojieli.com will continue to serve until May 2016, and will not be renewed afterwards.

The blog title has been changed from “null != undefined” to “Ring0”, and the subtitle has been changed from “Seeking possibility for next-generation network” to “Fundamental research in networked systems”. Hope readers like it ^_^