ERROR: policydb version 31 does not match my version range 15-30

版本 CentOS7.3

修改ssh端口号的时候报错

ERROR: policydb version 31 does not match my version range 15-30

解决：yum provides semanage

           yum -y install policycoreutils-python.x86_64

仅供自己学习记录。