第一步：关闭防火墙
[root@localhost ~]# systemctl stop firewalld
第二步：查看系统版本 点击查看代码
[root@localhost ~]# cat /etc/redhat-release
[root@localhost ~]# rpm -qa | grep openssh
[root@localhost ~]# ssh -V
第三步：准备环境，安装编译所需依赖软件包
[root@localhost ~]# yum -y install wget tar gcc make
第四步：下载软件
[root@localhost ~]# wget --no-check-certificate https://nchc.dl.sourceforge.net/project/libpng/zlib/1.2.11/zlib-1.2.11.tar.gz
[root@localhost ~]# wget --no-check-certificate https://www.openssl.org/source/openssl-1.1.1d.tar.gz
[root@localhost ~]# wget --no-check-certificate https://mirrors.sonic.net/pub/OpenBSD/OpenSSH/portable/openssh-9.0p1.tar.gz或者
wget --no-check-certificate https://mirrors.aliyun.com/pub/OpenBSD/OpenSSH/portable/openssh-9.0p1.tar.gz
#解压
[root@localhost ~]# tar -xzvf zlib-1.2.11.tar.gz
[root@localhost ~]# tar -xzvf openssl-1.1.1d.tar.gz
[root@localhost ~]# tar -xzvf openssh-9.0p1.tar.gz
第五步、安装libz
[root@localhost ~]# cd zlib-1.2.11
[root@localhost zlib-1.2.11]# ./configure --prefix=/usr/local/zlib
[root@localhost zlib-1.2.11]# make && make install
[root@localhost zlib-1.2.11]# cd
第六步、安装openssl
[root@localhost ~]# cd openssl-1.1.1d
[root@localhost openssl-1.1.1d]# ./config --prefix=/usr/local/ssl -d shared
[root@localhost openssl-1.1.1d]# make && make install
[root@localhost openssl-1.1.1d]# echo '/usr/local/ssl/lib' >> /etc/ld.so.conf
[root@localhost openssl-1.1.1d]# ldconfig -v
[root@localhost openssl-1.1.1d]# cd
第七步、安装openssh-9.0p1
[root@localhost ~]# cd openssh-9.0p1
[root@localhost openssh-9.0p1]# ./configure --prefix=/usr/local/openssh --with-zlib=/usr/local/zlib --with-ssl-dir=/usr/local/ssl
[root@localhost openssh-9.0p1]# make && make install
第八步、删除低版本OpenSSH的的rpm包
[root@localhost openssh-9.0p1]# rpm -e --nodeps `rpm -qa | grep openssh`
第九步、修改配置
启动前要将新生成的sshd_config修改以下几个地方
[root@localhost ~]# vim /usr/local/openssh/etc/sshd_config
按i，把下面复制进去，按esc ，输入:wq!保存
PermitRootLogin yes
PubkeyAuthentication yes
PasswordAuthentication yes
复制文件到相应的系统文件夹
[root@localhost ~]# cd openssh-9.0p1
[root@localhost openssh-9.0p1]# cd contrib/redhat/
[root@ localhost redhat]# cp sshd.init /etc/init.d/sshd
[root@ localhost redhat]# chkconfig --add sshd
[root@ localhost redhat]# cp /usr/local/openssh/etc/sshd_config /etc/ssh/sshd_config
[root@ localhost redhat]# cp /usr/local/openssh/sbin/sshd /usr/sbin/sshd
[root@ localhost redhat]# cp /usr/local/openssh/bin/ssh /usr/bin/ssh
[root@ localhost redhat]# cp /usr/local/openssh/bin/ssh-keygen /usr/bin/ssh-keygen
[root@ localhost redhat]# cp /usr/local/openssh/etc/ssh_host_ecdsa_key.pub /etc/ssh/ssh_host_ecdsa_key.pub
是否覆盖“y”
[root@ localhost redhat]#
