ubuntu16.04升级openssh

升级openssh

1、安装依赖包

apt  install   libzip-dev  libssl-dev autoconf  gcc  libxml2   make -y

2、下载源码文件包

cd /usr/local/src
wget https://cdn.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-8.1p1.tar.gz
wget https://www.openssl.org/source/openssl-1.1.1.tar.gz --no-check-certificate
wget http://www.zlib.net/zlib-1.2.11.tar.gz
tar -zxvf openssh-8.1p1.tar.gz
tar -zxvf openssl-1.1.1.tar.gz
tar -zxvf zlib-1.2.11.tar.gz

3、编译安装zlib

上传zlib源码到服务器的任意目录，并解压
cd  zlib-1.2.11
./configure    --prefix=/usr/local/zlib
make && make  install

更新动态链接数据库
echo "/usr/local/zlib/lib" >> /etc/ld.so.conf

ldconfig -v

4、编译安装openssl

apt purge openssl

cd ../openssl-1.1.1
./config shared --prefix=/usr/local/ssl
make test
make install
ln -s /usr/local/ssl/lib/libssl.so.1.1 /usr/lib/libssl.so.1.1
ln -s /usr/local/ssl/lib/libcrypto.so.1.1 /usr/lib/libcrypto.so.1.1
echo "/usr/local/ssl/lib" > /etc/ld.so.conf.d/openssl.conf

mv /usr/include/openssl  /usr/include/openssl.bak

mv /usr/bin/openssl  /usr/bin/openssl.bak

ln -s /usr/local/ssl/include/openssl /usr/include/openssl
ln -s /usr/local/ssl/bin/openssl /usr/bin/ 
ldconfig -v 
查询openssl版本号 
openssl version -a

5、编译安装openssh

mkdir /tmp/ssh_bak -p
mkdir /tmp/ssh_bak/init.d -p
cp -r /etc/ssh /tmp/ssh_bak
cp /etc/init.d/ssh /tmp/ssh_bak/init.d

service sshd stop
#apt-get remove openssh-server openssh-client -y
apt-get purge openssh-server openssh-client -y
#rm -rf  /etc/init.d/ssh 
#mv /etc/ssh /etc/ssh.bak

cd ../openssh-8.1p1
./configure --prefix=/usr/local/ssh --sysconfdir=/etc/ssh --with-ssl-dir=/usr/local/ssl 

make 
make instal

6、设置相关配置文件

mv /usr/bin/scp /tmp/
mv /usr/bin/ssh* /tmp/

ln -s /usr/local/ssh/bin/ssh /usr/bin/ssh
ln -s /usr/local/ssh/bin/scp /usr/bin/scp
ln -s /usr/local/ssh/bin/ssh-add /usr/bin/ssh-add             
ln -s /usr/local/ssh/bin/ssh-agent /usr/bin/ssh-agent
ln -s /usr/local/ssh/bin/ssh-keygen  /usr/bin/ssh-keygen
ln -s /usr/local/ssh/bin/ssh-keyscan /usr/bin/ssh-keyscan

ln -s /usr/local/ssh/sbin/sshd /usr/bin/sshd

ln -s /usr/local/ssh/sbin/sshd /usr/sbin/sshd

执行ssh -V验证是否升级成功 ssh -V

7、重启ssh服务

systemctl enable ssh
systemctl restart ssh

8、查看当前版本

ssh  -V