以Root用户上传升级包至/home/dou/system

openssh-7.5p1.tar.gz

openssl-1.0.2l.tar.gz

zlib-1.2.11.tar.gz

l安装所需包

挂载镜像

#mount -t iso9660 /home/dou/system/rhel-server-7.2-x86_64-dvd.iso /mnt/system/  -o  loop

l安装包

#yum -y install gcc pam-devel zlib-devel

l解压包

#cd /home/dou/system/

#tar -zxvf zlib-1.2.11.tar.gz

#cd zlib-1.2.11/

l编译

#./configure --prefix=/usr

#make(不可忘记)

l卸载当前zlib

#rpm -e --nodeps zlib

l安装之前编译的

#make install

l共享库注册

#echo '/usr/lib' >> /etc/ld.so.conf

#ldconfig

l备份当前openssl

#mv /etc/pki/ca-trust/extracted/openssl /etc/pki/ca-trust/extracted/openssl.old

# mv /usr/bin/openssl /usr/bin/openssl.old

#mv /usr/lib64/openssl /usr/lib64/openssl.old

备份库文件

# cp  /usr/lib64/libcrypto.so.10  /usr/lib64/libcrypto.so.10.old

# cp  /usr/lib64/libssl.so.10  /usr/lib64/libssl.so.10.old

l卸载当前openssl

#rpm -qa |grep openssl|xargs -i rpm -e --nodeps {}

(报错信息可忽略，因为目录我们已经改名字了)

l解压openssl-1.0.2l.tar.gz

#cd ../

#tar -zxvf openssl-1.0.2l.tar.gz

#cd openssl-1.0.2l/

#./config --prefix=/usr --openssldir=/etc/ssl --shared zlib

#make

#make test

#make install

#openssl version -a  (查看版本)

l恢复共享库

# mv  /usr/lib64/libcrypto.so.10.old  /usr/lib64/libcrypto.so.10

# mv  /usr/lib64/libssl.so.10.old  /usr/lib64/libssl.so.10

l备份当前openssh

mv/etc/ssh /etc/ssh.old

l卸载当前openssh

#rpm -qa |grep openssh|xargs -i rpm -e --nodeps {}

l安装前环境配置

# install  -v -m700 -d /var/lib/sshd

# chown  -v root:sys /var/lib/sshd

l解压openssh_7.5p1源码并编译安装

#cd ../

#tar -zxvf openssh-7.5p1.tar.gz

#cd openssh-7.5p1/

#./configure --prefix=/usr  --sysconfdir=/etc/ssh  --with-md5-passwords  --with-pam  --with-zlib --with-openssl-includes=/usr --with-privsep-path=/var/lib/sshd

# make

# make install

lopenssh安装后环境配置

#在openssh编译目录执行如下命令

# install -v -m755    contrib/ssh-copy-id /usr/bin

# install -v -m644    contrib/ssh-copy-id.1 /usr/share/man/man1

# install -v -m755 -d /usr/share/doc/openssh-7.5p1

# install -v -m644    INSTALL LICENCE OVERVIEW README* /usr/share/doc/openssh-7.5p1

# ssh -V              #验证是否升级成功

l启用OpenSSH服务

#echo 'X11Forwarding yes' >> /etc/ssh/sshd_config

#echo "PermitRootLogin yes" >> /etc/ssh/sshd_config

#cp -p contrib/redhat/sshd.init /etc/init.d/sshd

#chmod +x /etc/init.d/sshd

#/sbin/chkconfig --add  sshd

#/sbin/chkconfig sshd on

#service sshd restart