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

[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]#

[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

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 openssh-9.0p1]# cd /usr/local/src/openssh-9.0p1/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

[root@ localhost redhat]#