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