openssh离线升级9.0的步骤总结—(针对与centos7)
序言:
ssh服务版本低会出现漏洞,对于安全要求较高的公司来讲,服务器的ssh加固最有效的方式就是平滑升级到最新版本,所以今天需要来讲一下平滑升级到ssh9.0的方法和步骤。
1:所需包下载地址如下:
Zlib官网:http://www.zlib.net/
OpenSSL官网:https://www.openssl.org/
OpenSSH官网:https://www.openssh.com/
2:准备工作:
需要升级前先开启telnet服务,防止当我们的ssh升级失败的时候没有可以远程链接机器的服务。
开启telnet服务:
1:检查是否安装了telnet rpm -qa telnet
2:未安装telnet的情况下先到 http://rpmfind.net/下载telnet的对应版本的rpm包上传到服务器后进行安装 安装命令 rpm -ivh telnet-server*.rpm
3: 开启telnet 命令如下
systemctl start telnet.socket
3: 安装与最终查询
3.1 创建自定义目录
mkdir ssh_up
3.2: 将准备好的zlib ssl,ssh的最新的安装包放置到服务器的自定义目录下
3.3:检查安装依赖是否都存在,不存在利用yum进行安装,yum源里没有的情况下缺少的包可以去 http://rpmfind.net/进行对应包的搜索和下载
yum install gcc gcc-c++ glibc make autoconf openssl openssl-devel pcre-devel pam-devel zlib-devel tcp_wrappers-devel tcp_wrappers
3.4: 开启脚本安装ssh升级服务,脚本如下:步骤一定和文档一样才能用这个脚本,否则请自行按照自己的实际情况修改脚本。
#!/bin/bash # ######################################################### # Function :openssh-9.0p1 update # # Platform :Centos7 # # Version :2.0 # # Date :2022-06-13 # ######################################################### clear export LANG="en_US.UTF-8" #版本号 zlib_version="zlib-1.2.12" openssl_version="openssl-1.1.1o" openssh_version="openssh-9.0p1" #安装包地址 file="/ssh_up" #默认编译路径 default="/usr/local" date_time=`date +%Y-%m-%d—%H:%M` #安装目录 file_install="$file/openssh_install" file_backup="$file/openssh_backup" file_log="$file/openssh_log" #源码包链接 zlib_download="http://www.zlib.net/$zlib_version.tar.gz" openssl_download="https://www.openssl.org/source/$openssl_version.tar.gz" openssh_download="https://cdn.openbsd.org/pub/OpenBSD/OpenSSH/portable/$openssh_version.tar.gz" # Check if user is root if [ $(id -u) != "0" ]; then echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " 当前用户为普通用户,必须使用root用户运行,脚本退出中......" "/033[31m Error/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo "" sleep 4 exit fi #判断是否安装wget echo -e "/033[33m 正在安装Wget............... /033[0m" sleep 2 echo "" if ! type wget >/dev/null 2>&1; then yum install -y wget else echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " wget已经安装了:" "/033[32m Please continue/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo "" fi #判断是否安装tar echo -e "/033[33m 正在安装TAR............... /033[0m" sleep 2 echo "" if ! type tar >/dev/null 2>&1; then yum install -y tar else echo "" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " tar已经安装了:" "/033[32m Please continue/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" fi echo "" #创建文件(可修改) mkdir -p $file_install mkdir -p $file_backup mkdir -p $file_log mkdir -p $file_backup/zlib mkdir -p $file_backup/ssl mkdir -p $file_backup/ssh mkdir -p $file_log/zlib mkdir -p $file_log/ssl mkdir -p $file_log/ssh #备份文件(可修改) cp -rf /usr/bin/openssl $file_backup/ssl/openssl_$date_time.bak > /dev/null cp -rf /etc/init.d/sshd $file_backup/ssh/sshd_$date_time.bak > /dev/null cp -rf /etc/ssh $file_backup/ssh/ssh_$date_time.bak > /dev/null cp -rf /usr/lib/systemd/system/sshd.service $file_backup/ssh/sshd_$date_time.service.bak > /dev/null cp -rf /etc/pam.d/sshd.pam $file_backup/ssh/sshd_$date_time.pam.bak > /dev/null ##并卸载原有的openssh(可修改) rpm -e --nodeps `rpm -qa | grep openssh` #下载的源码包,检查是否解压(可修改) # if [ -e $file/$zlib_version.tar.gz ] && [ -e $file/$openssl_version.tar.gz ] && [ -e /$file/$openssh_version.tar.gz ];then # echo -e " 下载软件源码包已存在 " "/033[32m Please continue/033[0m" # else # echo -e "/033[33m 未发现本地源码包,链接检查获取中........... /033[0m " # echo "" # cd $file # wget --no-check-certificate $zlib_download # wget --no-check-certificate $openssl_download # wget --no-check-certificate $openssh_download # echo "" # fi #zlib echo -e "/033[33m 正在下载Zlib软件包.............. /033[0m" sleep 2 echo "" if [ -e $file/$zlib_version.tar.gz ] ;then echo -e " 下载软件源码包已存在 " "/033[32m Please continue/033[0m" else echo -e "/033[33m 未发现zlib本地源码包,链接检查获取中........... /033[0m " sleep 1 echo "" cd $file wget --no-check-certificate $zlib_download echo "" fi #openssl echo -e "/033[33m 正在下载Openssl软件包.............. /033[0m" sleep 2 echo "" if [ -e $file/$openssl_version.tar.gz ] ;then echo -e " 下载软件源码包已存在 " "/033[32m Please continue/033[0m" else echo -e "/033[33m 未发现openssl本地源码包,链接检查获取中........... /033[0m " echo "" sleep 1 cd $file wget --no-check-certificate $openssl_download echo "" fi #openssh echo -e "/033[33m 正在下载Openssh软件包.............. /033[0m" sleep 2 echo "" if [ -e /$file/$openssh_version.tar.gz ];then echo -e " 下载软件源码包已存在 " "/033[32m Please continue/033[0m" else echo -e "/033[33m 未发现openssh本地源码包,链接检查获取中........... /033[0m " echo "" sleep 1 cd $file wget --no-check-certificate $openssh_download echo "" fi #安装zlib #Install_zlib(){ echo -e "/033[33m 正在解压Zlib软件包.............. /033[0m" sleep 2 echo "" cd $file && mkdir -p $file_install && tar -xzf zlib*.tar.gz -C $file_install if [ -d $file_install/$zilb_version ];then echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " zilb解压源码包成功" "/033[32m Success/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo "" else echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " zilb解压源码包失败,脚本退出中......" "/033[31m Error/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo "" sleep 4 exit fi echo -e "/033[33m 正在编译安装Zlib服务.............. /033[0m" sleep 2 echo "" cd $file_install/zlib* ./configure --prefix=$default/$zlib_version > $file_log/zlib/zlib_configure_$date_time.txt #> /dev/null 2>&1 if [ $? -eq 0 ];then echo -e "/033[33m make... /033[0m" make > /dev/null 2>&1 echo $? echo -e "/033[33m make test... /033[0m" make test > /dev/null 2>&1 echo $? echo -e "/033[33m make install... /033[0m" make install > /dev/null 2>&1 echo $? else echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " 编译安装压缩库失败,脚本退出中..." "/033[31m Error/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo "" sleep 4 exit fi if [ -e $default/$zlib_version/lib/libz.so ];then sed -i '/zlib/'d /etc/ld.so.conf echo "$default/$zlib_version/lib" >> /etc/ld.so.conf echo "" echo "$default/$zlib_version/lib" >> /etc/ld.so.conf.d/zlib.conf ldconfig -v > $file_log/zlib/zlib_ldconfig_$date_time.txt > /dev/null 2>&1 /sbin/ldconfig echo "" fi #} #install_openssl(){ echo -e "/033[33m 正在解压Openssl.............. /033[0m" sleep 2 echo "" cd $file && tar -xvzf openssl*.tar.gz -C $file_install if [ -d $file_install/$openssl_version ];then echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " OpenSSL解压源码包成功" "/033[32m Success/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" else echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " OpenSSL解压源码包失败,脚本退出中......" "/033[31m Error/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo "" sleep 4 exit fi echo "" echo -e "/033[33m 正在编译安装Openssl服务.............. /033[0m" sleep 2 echo "" cd $file_install/$openssl_version ./config shared zlib --prefix=$default/$openssl_version > $file_log/ssl/ssl_config_$date_time.txt #> /dev/null 2>&1 if [ $? -eq 0 ];then echo -e "/033[33m make clean... /033[0m" make clean > /dev/null 2>&1 echo $? echo -e "/033[33m make -j 4... /033[0m" make -j 4 > /dev/null 2>&1 echo $? echo -e "/033[33m make install... /033[0m" make install > /dev/null 2>&1 echo $? else echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " 编译安装OpenSSL失败,脚本退出中..." "/033[31m Error/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo "" sleep 4 exit fi mv /usr/bin/openssl /usr/bin/openssl_$date_time.bak #先备份 if [ -e $default/$openssl_version/bin/openssl ];then sed -i '/openssl/'d /etc/ld.so.conf echo "$default/$openssl_version/lib" >> /etc/ld.so.conf ln -s $default/$openssl_version/bin/openssl /usr/bin/openssl ln -s $default/$openssl_version/lib/libssl.so.1.1 /usr/lib64/libssl.so.1.1 ln -s $default/$openssl_version/lib/libcrypto.so.1.1 /usr/lib64/libcrypto.so.1.1 ldconfig -v > $file_log/ssl/ssl_ldconfig_$date_time.txt > /dev/null 2>&1 /sbin/ldconfig echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " 编译安装OpenSSL " "/033[32m Success/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo "" sleep 4 echo -e "/033[32m====================== OpenSSL veriosn ===================== /033[0m" echo "" openssl version -a echo "" echo -e "/033[32m======================================================= /033[0m" else echo "" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " OpenSSL软连接失败,脚本退出中..." "/033[31m Error/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" fi #} #install_openssh(){ echo -e "/033[33m 正在解压Openssh.............. /033[0m" sleep 2 echo "" cd $file && tar -xvzf openssh*.tar.gz -C $file_install if [ -d $file_install/$openssh_version ];then echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " OpenSSh解压源码包成功" "/033[32m Success/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" else echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " OpenSSh解压源码包失败,脚本退出中......" "/033[31m Error/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo "" sleep 4 exit fi echo "" echo -e "/033[33m 正在编译安装Openssh服务.............. /033[0m" sleep 2 echo "" mv /etc/ssh /etc/ssh_$date_time.bak #先备份 cd $file_install/$openssh_version ./configure --prefix=$default/$openssh_version --sysconfdir=/etc/ssh --with-ssl-dir=$default/$openssl_version --with-zlib=$default/$zlib_version > $file_log/ssh/ssh_configure_$date_time.txt #> /dev/null 2>&1 if [ $? -eq 0 ];then echo -e "/033[33m make -j 4... /033[0m" make -j 4 > /dev/null 2>&1 echo $? echo -e "/033[33m make install... /033[0m" make install > /dev/null 2>&1 echo $? else echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " 编译安装OpenSSH失败,脚本退出中......" "/033[31m Error/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo "" sleep 4 exit fi echo "" echo -e "/033[32m==================== OpenSSH veriosn =================== /033[0m" echo "" /usr/local/$openssh_version/bin/ssh -V echo "" echo -e "/033[32m======================================================= /033[0m" echo "" echo -e "/033[33m 正在迁移Openssh配置文件.............. /033[0m" sleep 2 echo "" #迁移sshd if [ -f "/etc/init.d/sshd" ];then mv /etc/init.d/sshd /etc/init.d/sshd_$date_time.bak else echo -e " /etc/init.d/sshd不存在 " "/033[31m Not backed up(可忽略)/033[0m" fi cp -rf $file_install/$openssh_version/contrib/redhat/sshd.init /etc/init.d/sshd; chmod u+x /etc/init.d/sshd; chkconfig --add sshd ##自启动 chkconfig --list |grep sshd; chkconfig sshd on #备份启动脚本,不一定有 if [ -f "/usr/lib/systemd/system/sshd.service" ];then mv /usr/lib/systemd/system/sshd.service /usr/lib/systemd/system/sshd.service_bak else echo -e " sshd.service不存在" "/033[31m Not backed up(可忽略)/033[0m" fi #备份复制sshd.pam文件 if [ -f "/etc/pam.d/sshd.pam" ];then mv /etc/pam.d/sshd.pam /etc/pam.d/sshd.pam_$date_time.bak else echo -e " sshd.pam不存在" "/033[31m Not backed up(可忽略)/033[0m" fi cp -rf $file_install/$openssh_version/contrib/redhat/sshd.pam /etc/pam.d/sshd.pam #迁移ssh_config cp -rf $file_install/$openssh_version/sshd_config /etc/ssh/sshd_config sed -i 's/Subsystem/#Subsystem/g' /etc/ssh/sshd_config echo 'Subsystem sftp internal-sftp'>> /etc/ssh/sshd_config cp -rf $default/$openssh_version/sbin/sshd /usr/sbin/sshd cp -rf /$default/$openssh_version/bin/ssh /usr/bin/ cp -rf $default/$openssh_version/bin/ssh-keygen /usr/bin/ssh-keygen sed -i 's/#PasswordAuthentication/ yes/PasswordAuthentication/ yes/g' /etc/ssh/sshd_config #grep -v "[[:space:]]*#" /etc/ssh/sshd_config |grep "PubkeyAuthentication yes" echo 'PermitRootLogin no' >> /etc/ssh/sshd_config #重启sshd service sshd start > /dev/null 2>&1 if [ $? -eq 0 ];then echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " 启动OpenSSH服务成功" "/033[32m Success/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo "" sleep 2 echo -e "/033[32m==================== OpenSSH veriosn =================== /033[0m" echo "" ssh -V echo "" echo -e "/033[32m======================================================== /033[0m" else echo -e "/033[33m--------------------------------------------------------------- /033[0m" echo -e " 启动OpenSSH服务失败,脚本退出中......" "/033[31m Error/033[0m" echo -e "/033[33m--------------------------------------------------------------- /033[0m" sleep 4 exit fi echo "" #} #删除源码包(可修改) rm -rf $file/*.tar.gz #rm -rf $file_install ##sshd状态 echo "" echo -e "/033[33m输出sshd服务状态: /033[33m" sleep 1 echo "" systemctl status sshd.service echo "" echo "" echo "" sleep 1 echo -e "/033[33m==================== OpenSSH file =================== /033[0m" echo "" echo -e " Openssh升级安装目录请前往: " cd $file_install && pwd cd ~ echo "" echo -e " Openssh升级备份目录请前往: " cd $file_backup && pwd cd ~ echo "" echo -e " Openssh升级日志目录请前往: " cd $file_log && pwd cd ~ echo "" echo -e "/033[33m======================================================= /033[0m"
3.5: 检查是否升级成功,查看是否为最新版本的ssh
ssh -V
3.6:如果升级成功之后,需要检查是否可以使用sftp,如果不可以使用,请检查自己的sftp-server的服务包的位置,查找到之后把位置替换到ssh的配置文件中后,重启ssh 命令如下:
find / -name sftp-server
vi /etc/ssh/sshd_config 找到Subsystem sftp internal-sftp 替换为 Subsystem sftp 刚刚查找到的位置 保存后重启ssh service sshd restart
3.7:善后工作: 关闭telnet服务
systemctl stop telnet.socket
原创文章,作者:bd101bd101,如若转载,请注明出处:https://blog.ytso.com/267777.html