安装依赖
yum update openssh -y
yum install -y gcc gcc-c++ glibc make autoconf openssl openssl-devel pcre-devel pam-devel
yum install -y pam* zlib*
在opt下下载升级openssh需要的2个压缩包
cd /opt
wget -c https://openbsd.hk/pub/OpenBSD/OpenSSH/portable/openssh-8.1p1.tar.gz