□ If the group password policy is changed to gshadow, each group's password of group file is changed to x
□ grpconv : It is linux command to change password policy(group → gshadow)(The /etc/gshadow file is created)
□ grpunconv : It is linux command to change password policy(gshadow → group)(The /etc/gshadow file is deleted)
| Test environment | |||
| O S | Ubuntu 15.10 (64bit) | CPU | Intel i7-4710MQ 2.50GHz |
| SHELL | GNU bash (4.3.42) | GPU | Gallium 0.4 on SVGA3D |
| RAM | 984MiB | ||