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centos7.5离线升级openssh到8.3p版本（附加openssl）1.首先查看SSH版本ssh -V2 .yum安装依赖包yum -y install gcc gcc-c++ kernel-devel3 .下载安装包zlib：wget http://www.zlib.net/zlib-1.2.11.tar.gzopenssl：wget https://www.openssl.org/source/openssl-1.1.1h.tar.gzopenssh：wget http://