安装telnet

进行下面操作前，务必确保telnet服务安装成功。
安装xinetd

yum install xinetd -y

安装telnet服务，下载地址下载地址

rpm -ivh telnet-0.17-86.aarch64.rpm
rpm -ivh telnet-server-0.17-86.aarch64.rpm

重启

service xinetd restart

确保能够telnet登录需要升级ssh的服务器

升级ssl

下载

wget https://www.openssl.org/source/openssl-3.2.0.tar.gz

编译安装

tar -zxvf openssl-3.2.0.tar.gz
cd openssl-3.2.0
./config --prefix=/usr/local/openssl
make -j 16
make install
mv /usr/bin/openssl /usr/bin/openssl.bak
ln -sf /usr/local/openssl/bin/openssl /usr/bin/openssl

使配置生效

打开文件，把“/usr/local/openssl/lib”加到文件最后。

vim /etc/ld.so.conf

sudo ldconfig -v
openssl version

安装ssh

yum安装编译依赖的组件

yum install -y rpm-build gcc gcc-c++ glibc glibc-devel openssl-devel openssl pcre-devel zlib zlib-devel make wget krb5-devel pam-devel libX11-devel  libXt-devel initscripts libXt-devel  gtk2-devel lrzsz

建立编译目录

mkdir -pv /root/rpmbuild/{BUILD,BUILDROOT,RPMS,SOURCES,SPECS,SRPMS}

源码包下载并修改，迁移到到/root/rpmbuild/SOURCES

wget http://mirror.aarnet.edu.au/pub/OpenBSD/OpenSSH/portable/openssh-9.5p1.tar.gz -O /home/openssh-9.5p1.tar.gz
cd /home && tar -xf openssh-9.5p1.tar.gz &&  cd openssh-9.5p1/contrib/redhat/
cp -p sshd.pam sshd.pam.old && cp -p sshd.init sshd.init.old
cd ../../..;mv openssh-9.5p1.tar.gz openssh-9.5p1_$(date "+%Y%m%d%H%M%S").tar.gz
tar -cf openssh-9.5p1.tar.gz openssh-9.5p1/
cp openssh-9.5p1.tar.gz /root/rpmbuild/SOURCES/openssh-9.5p1.tar.gz

解压spec编译文件

cd /root/rpmbuild/SOURCES/
tar -xf openssh-9.5p1.tar.gz  openssh-9.5p1/contrib/redhat/openssh.spec
mv openssh-9.5p1 /root/rpmbuild/SPECS

不生成askpass包

cd /root/rpmbuild/SPECS/openssh-9.5p1/contrib/redhat/
sed -i -e "s/%global no_gnome_askpass 0/%global no_gnome_askpass 1/g" openssh.spec
sed -i -e "s/%global no_x11_askpass 0/%global no_x11_askpass 1/g" openssh.spec

解决openssl-devel < 1.1报错

sed -i '/openssl-devel < 1.1/s/^/#/' openssh.spec

编译openssh源码

rpmbuild -bb /root/rpmbuild/SPECS/openssh-9.5p1/contrib/redhat/openssh.spec

编译最后无报错即编译成功

查看编译的RPM文件

ll /root/rpmbuild/RPMS/aarch64

校验配置文件

sshd -t

校验配置文件，注释掉过期选项

vi /etc/ssh/sshd_config

授权文件

chmod 600 /etc/ssh/ssh_host_*
chown root:root /etc/ssh/ssh_host_*

升级

rpm -Uvh openssh-9.5p1-1.aarch64.rpm openssh-clients-9.5p1-1.aarch64.rpm openssh-server-9.5p1-1.aarch64.rpm

如果升级成功，无需以下操作

其它命令

重启

systemctl restart sshd

查看状态

systemctl status sshd.service

查看版本号

ssh -V

原文链接：https://blog.csdn.net/rzhidong/article/details/134512216