新版本代码获取
从官网下载 https://openbsd.hk/pub/OpenBSD/OpenSSH/portable/openssh-7.6p1.tar.gz
编译RPM包注意事项
需要注意新版的openssh的spec文件里使用的pam配置文件会导致无法登陆
#%PAM-1.0
auth required pam_stack.so service=system-auth
account required pam_nologin.so
account required pam_stack.so service=system-auth
password required pam_stack.so service=system-auth
session required pam_stack.so service=system-auth
需要修改为
#%PAM-1.0
auth required pam_sepermit.so
auth include password-auth
account required pam_nologin.so
account include password-auth
password include password-auth
# pam_selinux.so close should be the first session rule
session required pam_selinux.so close
session required pam_loginuid.so
# pam_selinux.so open should only be followed by sessions to be executed in the user context
session required pam_selinux.so open env_params
session optional pam_keyinit.so force revoke
session include password-auth
spec文件在./contrib/redhat下，可以直接rpmbuild -ba openssh.spec 编译。