sshd all bug rmi enforce repo his centos7.2 mis

1.開始安裝高版本的的openSSH的時候，系統自帶的沒有卸載，重啟sshd進程，sshd -h查看也是後面安裝的高版本，但是telnet 127.0.0.1 22發現仍然還是老版本的信息，這時才發現應該時沒有安裝成功
2.於是，卸載重新安裝，再次重啟，這次telnet 127.0.0.1 22發現版本已經變成7.5的了
3.但是這時，ssh無法登陸，告訴/etc/bash: Permission denied
4.這時setenforce 0，倒是能正常ssh登陸，不相信必須得關閉selinux
5.於是setenforce 1，ssh登陸，查看/var/log/message,發現有如下信息：
Feb 1 22:28:57 localhost setroubleshoot: SELinux is preventing /usr/local/sbin/sshd from using the transition access on a process. For complete SELinux messages. run sealert -l 6ca7e4db-d52f-41a3-8199-505f7a77a6c9
Feb 1 22:28:57 localhost python: SELinux is preventing /usr/local/sbin/sshd from using the transition access on a process.#012#012* Plugin catchall (100. confidence) suggests **#012#012If you believe that sshd should be allowed transition access on processes labeled unconfined_t by default.#012Then you should report this as a bug.#012You can generate a local policy module to allow this access.#012Do#012allow this access for now by executing:#012# ausearch -c ‘sshd‘ --raw | audit2allow -M my-sshd#012# semodule -i my-sshd.pp#012

6.裏面已經說解決方法，於是運行下面兩個命令：
ausearch -c ‘sshd‘ --raw | audit2allow -M my-sshd
semodule -i my-sshd.pp
搞定

CentOS7.2升級openSSH為7.5P1無法登錄的處理過程