shell脚本一键升级openssh最新版

#! /bin/bash
yum install -y gcc gcc-c++ glibc make autoconf openssl openssl-devel pcre-devel  pam-devel wget vim unzip lrzsz pam* zlib*
wget https://ftp.openssl.org/source/openssl-1.1.1k.tar.gz
cd /root/
tar -zxvf openssl-1.1.1k.tar.gz
cd openssl-1.1.1k
./config --prefix=/usr/local/openssl  --shared
make && make  install
ls /usr/local/openssl
mv /usr/bin/openssl /usr/bin/openssl.bak
mv /usr/include/openssl /usr/include/openssl.bak 
unlink /usr/lib64/libssl.so
ln -s /usr/local/openssl/bin/openssl /usr/bin/openssl
ln -s /usr/local/openssl/include/openssl /usr/include/openssl
ln -s /usr/local/openssl/lib/libssl.so /usr/lib64/libssl.so
echo '/usr/local/openssl/lib' >> /etc/ld.so.conf
ldconfig -v
ln -s /usr/local/openssl/lib/libssl.so.1.1 /usr/lib64/libssl.so.1.1 
ln -s /usr/local/openssl/lib/libcrypto.so.1.1 /usr/lib64/libcrypto.so.1.1
openssl version
cd /root/
wget https://openbsd.hk/pub/OpenBSD/OpenSSH/portable/openssh-8.6p1.tar.gz
tar -zxvf openssh-8.6p1.tar.gz
chown -R root.root openssh-8.6p1
cd openssh-8.6p1
cp -rf /etc/ssh /etc/ssh.bak_ray
rm -rf /etc/ssh/*
 ./configure --prefix=/usr/ --sysconfdir=/etc/ssh  --with-openssl-includes=/usr/local/openssl/include/openssl --with-ssl-dir=/usr/local/openssl  --with-zlib   --with-md5-passwords   --with-pam  && make && make install
mv /usr/lib/systemd/system/sshd.service /usr/lib/systemd/system/bak_sshd.service
cp -a contrib/redhat/sshd.init /etc/init.d/sshd
cp -a contrib/redhat/sshd.pam /etc/pam.d/sshd.pam
chmod +x /etc/init.d/sshd
chkconfig --add sshd
systemctl enable sshd
chkconfig
chkconfig sshd on
systemctl daemon-reload
sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/g' /etc/ssh/sshd_config
sed -i 's/#UseDNS no/UseDNS no/g' /etc/ssh/sshd_config
service sshd restart

直接复制脚本到linux跑，日后有更新版本改一下即可。