curl: Failed to connect to raw.githubusercontent.com port 443: Connection refused
Posted 柳鲲鹏
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就是网址不对。怎么办？
- 查找IP
打开网站https://www.ipaddress.com。打不开？那阁下看看其他博文怎么说的。
输入raw.githubusercontent.com，看到当前IP。
修改文件
打开/etc/hosts，输入以下内容（185.199.108.133就是刚刚查询到的IP）。
185.199.108.133 raw.githubusercontent.com
- 再次尝试
curl -O https://raw.githubusercontent.com/ros/rosdistro/master/ros.asc
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