CentOS7.9升级OpenSSH9.8📛

CentOS7.9 rpm包升级OpenSSH9.8📛


 

CentOS7.9通过rpm方式升级OpenSSH9.8,制作OpenSSH的rpm包可查看上期文章。

https://www.cnblogs.com/haoee/p/17733065.html

1. 准备工作

1.1 备份现有配置

备份 /etc/ssh/sshd_config 和其他关键文件:

[root@localhost ~]# cp /etc/ssh/sshd_config /etc/ssh/sshd_config.bak
[root@localhost ~]# cp -r /etc/ssh /etc/ssh_backup

1.2 安装 Telnet 作为备用连接(防止升级失败导致 SSH 无法连接)

# Ubuntu/Debian
[root@localhost ~]# sudo apt install telnetd xinetd -y
[root@localhost ~]# sudo systemctl start telnet.socket
[root@localhost ~]# sudo systemctl start xinetd
# CentOS/RHEL
[root@localhost ~]# sudo yum install telnet-server xinetd -y
[root@localhost ~]# sudo systemctl start telnet.socket
[root@localhost ~]# sudo systemctl start xinetd

⭐⭐ telnet默认不允许root用户登录,可以创建普通用户登录系统。或者执行以下命令临时登录:

允许 root 登录(临时):

[root@localhost ~]# echo 'pts/0' >> /etc/securetty
[root@localhost ~]# echo 'pts/1' >> /etc/securetty

 

2. 升级OpenSSH

将制作好的rpm包上传到服务器,执行安装命令。

[root@localhost ~]# cp openssh9.8p1.tar.gz /opt/
[root@localhost ~]# cd /opt
[root@localhost opt]# tar -xvf openssh9.8p1.tar.gz
[root@localhost opt]# ll
total 21048
-rw-r--r-- 1 root root 6633652 Jul  4  2024 openssh-9.8p1-1.el7.x86_64.rpm
-rw-r--r-- 1 root root 6719672 Jul  4  2024 openssh-clients-9.8p1-1.el7.x86_64.rpm
-rw-r--r-- 1 root root 4660872 Jul  4  2024 openssh-debuginfo-9.8p1-1.el7.x86_64.rpm
-rw-r--r-- 1 root root 3534328 Jul  4  2024 openssh-server-9.8p1-1.el7.x86_64.rpm
[root@localhost opt]# yum -y install ./*.rpm

查看ssh版本

[root@localhost ~]# systemctl restart sshd
[root@localhost ~]# ssh -V
OpenSSH_9.8p1, OpenSSL 3.0.14 4 Jun 2024

 

posted @ 2025-08-19 11:07  Noleaf  阅读(139)  评论(0)    收藏  举报