1. 下载依赖#
yum install -y wget gcc pam-devel libselinux-devel zlib-devel openssl-devel
2. 下载 openssh9.3#
wget -O openssh.tar.gz https://mirrors.aliyun.com/pub/OpenBSD/OpenSSH/portable/openssh-9.3p1.tar.gz
3. 备份原配置文件#
cp /etc/ssh/sshd_config sshd_config.backup
4. 删除旧版本#
rpm -e --nodeps `rpm -qa | grep openssh`
5. 解压新版本#
tar -zxvf openssh.tar.gz
6. 编译配置#
./configure --prefix=/usr --sysconfdir=/etc/ssh --with-md5-passwords --with-pam --with-zlib --with-tcp-wrappers --with-ssl-dir=/usr/local/ssl --without-hardening
7. 编译安装#
make && make install
8. 调整文件权限#
chmod 600 /etc/ssh/ssh_host_rsa_key /etc/ssh/ssh_host_ecdsa_key /etc/ssh/ssh_host_ed25519_key
9. 复制配置文件#
cp -a contrib/redhat/sshd.init /etc/init.d/sshd
10. 还原 原配置文件#
mv ../sshd.backup /etc/pam.d/sshd
11. 添加自启动#
chkconfig --add sshd
12. 重启服务#
systemctl restart sshd
13. 验证结果#
#openssh版本显示9.3即成功