升级Centos7的openssh到openssh-9.6p1版本 shell脚本 漏扫整改

#!/bin/bash# 声明: 该脚本适用于升级Centos7的openssh到openssh-9.6p1版本# 定义源码包版本号
OPENSSH_VERSION=openssh-9.6p1
OPENSSL_VERSION=openssl-3.2.1
ZILB_VERSION=zlib-1.3.1# 安装编译环境
yum -y install wget tar gcc make# 创建/opt/opensshUpgrade目录
mkdir -p /opt/opensshUpgradecd /opt/opensshUpgrade# 下载源码包
# 下载openssh源码包
wget -c https://ftp.riken.jp/pub/OpenBSD/OpenSSH/portable/$OPENSSH_VERSION.tar.gz
# 下载openssl源码包
wget -c https://www.openssl.org/source/$OPENSSL_VERSION.tar.gz
# 下载zlib源码包
wget -c https://www.zlib.net/$ZILB_VERSION.tar.gz# 解压安装包，我习惯将安装包解压到/usr/local/src
tar xf $OPENSSH_VERSION.tar.gz -C /usr/local/src/
tar xf $OPENSSL_VERSION.tar.gz -C /usr/local/src/
tar xf $ZILB_VERSION.tar.gz -C /usr/local/src/# 安装zlib-1.2.11
yum -y install gcc gcc-c++ kernel-devel
cd /usr/local/src/$ZILB_VERSION/
./configure --prefix=/usr/local/zlib && make -j && make install# 备份老版的openssl和动态库
mv /usr/bin/openssl /usr/bin/openssl.bak
mv /usr/include/openssl /usr/include/openssl.bak# 安装 openssl
cd /usr/local/src/$OPENSSL_VERSION/
./config --prefix=/usr/local/ssl -d shared
make -j && make install# 创建软连接到/usr/bin/openssl
ln -s /usr/local/ssl/bin/openssl /usr/bin/openssl
ln -s /usr/local/ssl/include/openssl /usr/include/opensslecho '/usr/local/ssl/lib' >> /etc/ld.so.conf
ldconfig -v# 安装openssh
mv /etc/ssh /etc/ssh.bak	# 备份原ssh
cd /usr/local/src/$OPENSSH_VERSION/
./configure --prefix=/usr/local/openssh --sysconfdir=/etc/ssh --with-ssl-dir=/usr/local/ssl --with-zlib=/usr/local/zlib 
make -j && make install# 卸载原openssh
yum autoremove openssh -y# 备份 /etc/ssh 原有文件，并将新的配置复制到指定目录
mv /usr/sbin/sshd /usr/sbin/sshd.bak &>/dev/null
cp -rf /usr/local/openssh/sbin/sshd /usr/sbin/sshd
mv /usr/bin/ssh /usr/bin/ssh.bak &>/dev/null
cp -rf /usr/local/openssh/bin/ssh /usr/bin/ssh mv /usr/bin/ssh-keygen /usr/bin/ssh-keygen.bak &>/dev/null
cp -rf /usr/local/openssh/bin/ssh-keygen /usr/bin/ssh-keygen
mv /etc/ssh/ssh_host_ecdsa_key.pub /etc/ssh/ssh_host_ecdsa_key.pub.bak &>/dev/null
cp /usr/local/openssh/etc/ssh_host_ecdsa_key.pub /etc/ssh/ssh_host_ecdsa_key.pub# 复制文件到相应的系统文件夹
cd /usr/local/src/openssh-9.0p1/contrib/redhat
cp sshd.init  /etc/init.d/sshd # sshd_config文件修改
cp /usr/local/openssh/etc/sshd_config /etc/ssh/sshd_config
# 开启x11转发
# echo "X11Forwarding yes" >> /etc/ssh/sshd_config
# X11配置
# echo "X11UseLocalhost no" >> /etc/ssh/sshd_config　　　　　　　　　　　　　　　　
# X11认证配置
# echo "XAuthLocation /usr/bin/xauth" >> /etc/ssh/sshd_config
# 禁用DNS反查,加快ssh登录速度
echo "UseDNS no" >> /etc/ssh/sshd_config
# 允许root登录
echo 'PermitRootLogin yes' >> /etc/ssh/sshd_config
# 允许密钥登录
echo 'PubkeyAuthentication yes' >> /etc/ssh/sshd_config
# 允许密码登录
echo 'PasswordAuthentication yes' >> /etc/ssh/sshd_config# 启动 sshd 并将其加入开机自启
systemctl stop sshd.service &>/dev/null
rm -rf /lib/systemd/system/sshd.service 
systemctl daemon-reload
cp /usr/local/src/$OPENSSH_VERSION/contrib/redhat/sshd.init /etc/init.d/sshd
/etc/init.d/sshd restart# 添加开机自启动项
chkconfig --add sshd
systemctl enable --now sshd# 查看sshd服务是否启动
systemctl status sshd| grep  "Active: active (running)"# 查看openssh版本和openssl版本
sshd -V
ssh -v
openssl versionif [ $? -eq 0 ]; thenecho -e "\033[32m[INFO] OpenSSH upgraded to 9.0p1  successfully！\033[0m"
elseecho -e "\033[31m[ERROR] OpenSSH upgraded to 9.0p1 faild！\033[0m"
fi