出现错误：ERROR: Could not find a version that satisfies the requirement ipython (from versions: none)ERROR: No matching distribution found for ipythonWARNING: You are using pip version 21.2.3; however, ve

[root@localhost ~]# nmtuiNetworkManaer 未运行。但是ping外网是没有问题的。输入以下命令：yum install NetworkManager-tuiyum-config-manager --enablesystemctl start NetworkManager再次输入nmtui，就可以发现进入设置窗口了后来发现ssh提示连接超时，用虚拟ping主机能连接