netstat -na

참 서버에대해서 암것도 몰랐던것 같다 이런 간단한 명령어 조차 모르고 지냈다.

1 --x execute
2 -w- write
3 -wx write and execute
4 r-- read
5 r-x read and execute
6 rw- read and write
7 rwx read, write and execute

http://en.wikipedia.org/w/index.php?title=File_system_permissions

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