Openssh升级后版本不对应

分享记录一下,之前升级到openssh8.4p1版本时，遇见的问题，供后期查阅。

系统版本:

[root@localhost ~]# cat /etc/redhat-release

CentOS release 6.5 (Final)

openssh升级前版本：

[root@localhost ~]# ssh -V

OpenSSH_8.1p1, OpenSSL 1.0.2q 20 Nov 2018

 

升级到openssh8.4p1

软件包：

 

升级步骤：

[root@localhost ~]# rpm -qa| grep openssh

openssh-askpass-5.3p1-94.el6.x86_64

openssh-5.3p1-94.el6.x86_64

openssh-server-5.3p1-94.el6.x86_64

openssh-clients-5.3p1-94.el6.x86_64

[root@localhost ~]# rpm -e --nodeps openssh-askpass-5.3p1-94.el6.x86_64

[root@localhost ~]# rpm -e --nodeps openssh-5.3p1-94.el6.x86_64

[root@localhost ~]# rpm -e --nodeps openssh-server-5.3p1-94.el6.x86_64

[root@localhost ~]# rpm -e --nodeps openssh-clients-5.3p1-94.el6.x86_64

[root@localhost ~]# mv /etc/ssh /etc/ssh.old

 

1. 解压软件包，生成如下文件：

   [root@localhost x86_64]# ls

   openssh-8.4p1-1.el6.x86_64.rpm openssh-server-8.4p1-1.el6.x86_64.rpm ssh.repo

   openssh-clients-8.4p1-1.el6.x86_64.rpm repodata

   2、准备ssh.repo源

   [root@localhost x86_64]# cp ssh.repo /etc/yum.repos.d/ssh.repo

   [root@localhost x86_64]# cat /etc/yum.repos.d/ssh.repo

   [ssh]

   name=ssh

   baseurl=file:///tmp/x86_64

   gpgcheck=0

   enabled=1

   [root@localhost x86_64]# cd ..

   [root@localhost opt]# mv x86_64 /tmp/

   [root@localhost opt]# yum clean all

   [root@localhost opt]# yum makecache fast

   3、进行安装

   [root@localhost opt]# yum install -y openssh openssh-server openssh-clients

2. 安装完成之后的版本

   [root@localhost opt]# ssh -V

   OpenSSH_8.4p1, OpenSSL 1.0.2q 20 Nov 2018

    

   注意事项：

   ssh/sshd命令的环境变量问题。

   

   解决办法：

   [root@localhost ~]# which ssh

   /usr/local/bin/ssh

   [root@localhost ~]# which sshd

   /usr/local/sbin/sshd

   [root@localhost ~]# mv /usr/local/bin/ssh /usr/local/bin/ssh.bak

   [root@localhost ~]# mv /usr/local/sbin/sshd /usr/local/sbin/sshd.bak

   [root@localhost ~]# cp /usr/sbin/sshd /usr/local/sbin/sshd

   [root@localhost ~]# cp /usr/bin/ssh /usr/local/bin/ssh

   [root@localhost ~]# ssh -V

   OpenSSH_8.4p1, OpenSSL 1.0.1e-fips 11 Feb 2013

   [root@localhost ~]# sshd -V

   unknown option -- V

   OpenSSH_8.4p1, OpenSSL 1.0.1e-fips 11 Feb 2013

   usage: sshd [-46DdeiqTt] [-C connection_spec] [-c host_cert_file]

   [-E log_file] [-f config_file] [-g login_grace_time]

   [-h host_key_file] [-o option] [-p port] [-u len]

    

   后期：openssh升级步骤.附

   https://cikeblog.com/tag/openssh

   在此，感谢他的贡献！