Welcome to my GitHub Pages.
Hi, I'm JoungKyun Kim in Seoul, Korea, republic of(South Korea).
I'm a expert infra structure engineer and open source developer.
I am working as a service infra designer of company and operation director. And I am developing open source what is needed to work this job.
Service Infra designer
I worked about 20 years as a service infra designer, and have a lot of experience:
- Integration Authentication and Authorization of the service servers for HR system
- consultation system for the privileges about server login
- IPv4 location based service(LBS) for the pivileges of online game.
- construction and managing CDN (contents delivery network) system.
- make contents sync system
- Tuning to improve the performance of the server
- Strengthening of security
- Recovery of the cracked system and relapse prevention.
- modified PHP engine
- impossible system shell injection (mod_exec extension)
- check malicious code about header of uploaded image file.
- Trouble shooting using various experience.
- Devops expert
- And so on ..
Open Source Developer
My favorite languages :
- and Korean and a little English :-)
And I am developing follows:
- Linux distribution (AnNyung LInux)
- Daemon module
- Apache / ProFTPd / Lighttpd / Nginx
- PHP/Python/Perl C binding extension
- C/C++ libraries
- PHP / Python / Perl library
Support or Contact
If you want to contact, send email to joungkyun at gmail.com.