命令安装redis：wget https://download.redis.io/releases/redis-6.0.10.tar.gz 出现如下错误
To connect to download.redis.io insecurely, use ‘--no-check-certificate’.
当使用wget下载https的内容时，会发生该错误，在wget后加入–-no-check-certificate 参数即可，例如：
修改命令即可
$ wget –-no-check-certificate https://download.redis.io/releases/redis-6.0.10.tar.gz

解压：tar zxvf redis-6.0.10.tar.gz

yum install gcc-c++ 报错 未解决
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
Eg. Invalid release/repo/arch combination/
removing mirrorlist with no valid mirrors: /var/cache/yum/x86_64/6/base/mirrorlist.txt
Error: Cannot find a valid baseurl for repo: base