Suse 12更新操作系统Openssl（3.2.0）、OpenSSH（9.6p1）及ntp（4.2.8p17）(源码编译安装)

部署前准备

安装依赖
- zypper install -y gcc gcc-c++ glibc make autoconf openssl openssl-devel pcre-devel pam-devel
- zypper install -y pam* zlib*
- SUSE的pam模块支持与其他Linux不同，请按需检查
openssh-9.6p1.tar.gz
openssl-3.2.0.tar.gz
zlib-1.3.1.tar.gz（openssh支持包）
ntp-4.2.8p17.tar.gz
备份文件
cp /etc/pam.d/sshd /etc/pam.d/sshd.bak

安装zlib支持包

解压安装包

tar zxvf zlib-1.3.1.tar.gz
cd zlib-1.3.1

编译安装zlib

./configure --prefix=/usr/local/zlib
make && make install

此处将zlib安装到服务器 /usr/local/zlib下

升级Openssl

解压openssl安装包

tar zxvf openssl-3.1.0.tar.gz
cd openssl-3.1.0

备份旧Openssl

mv /usr/bin/openssl /usr/bin/openssl_old
mv /usr/include/openssl /usr/include/openssl_old

编译安装Openssl

./config --prefix=/usr/local/openssl && make && make install

创建操作系统软链接

ln -s /usr/local/openssl/bin/openssl /usr/bin/openssl
ln -s /usr/local/openssl/include/openssl /usr/include/openssl

设置加载库

注意：lib库名称，旧版本是'lib'，新版本编译后是'lib64',故编译完成后检查自己安装的路径lib库名称
echo "/usr/local/openssl/lib64" >> /etc/ld.so.conf
ldconfig -v

检查Openssl版本

openssl version

升级Openssh

解压openssh安装包

tar zxvf openssh-9.3p1.tar.gz
cd openssh-9.3p1/

备份旧openssh目录

mv /etc/ssh /etc/ssh_old

编译安装Openssh

./configure --prefix=/usr/local/openssh --sysconfdir=/etc/ssh --with-md5-passwords --with-tcp-wrappers --with-ssl-dir=/usr/local/openssl --with-zlib=/usr/local/zlib --without-hardening
make && make install

备份旧文件

mv /usr/sbin/sshd /usr/sbin/sshd_old
mv /etc/sysconfig/sshd /etc/sysconfig/sshd_old
mv /usr/lib/systemd/system/sshd.service /usr/lib/systemd/system/sshd.service_old

卸载openssh

for i in $(rpm -qa |grep openssh);do rpm -e $i --nodeps ;done

还原openssh配置文件

cp -a /etc/ssh_old/sshd_config /etc/ssh/sshd_config
mv /etc/ssh/moduli.rpmsave /etc/ssh/moduli
cp /etc/pam.d/sshd.bak /etc/pam.d/sshd

替换新版本openssh相关命令

cp -arf /usr/local/openssh/bin/* /usr/bin/
cp -arf /usr/local/openssh/sbin/sshd /usr/sbin/sshd

拷贝启动脚本

cp -a contrib/suse/rc.sshd /etc/init.d/sshd
cp -a contrib/suse/sysconfig.ssh /etc/sysconfig/ssh
chmod +x /etc/init.d/sshd

设置开机启动,并验证版本

systemctl daemon-reload
chkconfig --add sshd && chkconfig sshd on
systemctl start sshd
ssh -V

设置安全性

sed -ie ''$(grep -rn 'Ciphers and keying' /etc/ssh/sshd_config | cut -d ':' -f1)'a Ciphers aes128-ctr,aes192-ctr,aes256-ctr \n\nMACs hmac-sha2-256,hmac-sha2-512,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,umac-64-etm@openssh.com,umac-128-etm@openssh.com \n\nKexAlgorithms curve25519-sha256@libssh.org,diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group-exchange-sha256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521 \n' /etc/ssh/sshd_config

检查配置并注释不支持的参数

sshd -t

更新ntp服务

解压ntp安装包

tar -zxvf ntp-4.2.8p17.tar.gz
cd ntp-4.2.8p17

卸载旧版本ntp服务

rpm -e ntp

编译安装ntp服务

./configure --prefix=/usr/local/ntp --with-openssl-libdir=/usr/local/openssl/lib64 --enable-all-clocks --enable-parse-clocks CFLAGS=-fPIC
make && make install

拷贝配置文件

cp /usr/local/ntp-4.2.8p17/bin/ntp* /usr/bin/
mv /etc/ntp.conf.rpmsave /etc/ntp.conf

拷贝服务启动文件

cp /usr/local/ntp/bin/ntpd /etc/init.d/ntpd

配置开机启动检查服务器是否启动成功

systemctl daemon-reload
chkconfig --add ntpd && chkconfig ntpd on
systemctl restart ntpd
systemctl status ntpd

查看ntp版本

ntpd --version