curl: (7) Failed to connect to raw.github.com port 443: Connection refused解决方法

出现问题 在安装zsh时git sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" 报错：github curl: (7) Failed to connect to raw.github.com port 443: Connection refused 错误缘

>>阅读原文<<