实验镜像

ubuntu-22.04.4-live-server-amd64.iso

# 安装必备和常用软件包

# 安装相关的依赖项，如有遗漏再次安装
apt install -y libz-dev vim gcc wget tar lrzsz nano make net-tools

# 安装zlib

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

# 安装openssl

./config --prefix=/usr/local/openssl
make && echo $? #输出0则代表没有错误
make -j 4 install

# 覆盖创建软链接

ln -sf /usr/local/openssl/include/openssl /usr/include/openssl
ln -sf /usr/local/openssl/bin/openssl /usr/bin/openssl
ln -sf /usr/local/openssl/lib64/libssl.so.3 /usr/lib/x86_64-linux-gnu//libssl.so.3
ln -sf /usr/local/openssl/lib64/libcrypto.so.3 /usr/lib/x86_64-linux-gnu/libcrypto.so.3

# 验证版本

openssl version -a

# 安装openssh

mv /etc/ssh /etc/ssh.bak
./configure --prefix=/usr/local/openssh/ --sysconfdir=/etc/ssh/ --with-ssl-dir=/usr/local/openssl/ --with-zlib=/usr/local/zlib/ --without-openssl-header-check
make -j 4 && make install

# 从安装目录创建软连接到系统目录

ln -sf /usr/local/openssh/sbin/sshd /sbin/sshd
ln -sf /usr/local/openssh/bin/ssh /usr/bin/ssh
ln -sf /usr/local/openssh/bin/scp /usr/bin/scp
ln -sf /usr/local/openssh/bin/sftp /usr/bin/sftp
ln -sf /usr/local/openssh/bin/ssh-add /usr/bin/ssh-add
ln -sf /usr/local/openssh/bin/ssh-keygen /usr/bin/ssh-keygen
ln -sf /usr/local/openssh/bin/ssh-keyscan /usr/bin/ssh-keyscan

# 验证

systemctl status sshd
sshd -V