@ertxn #274 作为一个镜像源的维护者，请仔细阅读各大发行版的镜像源部署规范。请不要让原本应当赞美您的受益者失望.
作为一个各大发行版的官方源维护者如果连部署文档都没读过就乱说话，有点不应该啊。这些文档楼上已经有人贴过了，可能你没看到，我再贴一遍。

cite: Ubuntu Mirror Guidelines https://wiki.ubuntu.com/Mirrors
> Obviously, each offer to be an Ubuntu mirror is great and users appreciate it. However, it's in nobody's interest to go and change the sources.list every time a mirror disappears. So if you're not planning on creating a mirror for the long run, don't register it. People might get disappointed in you and/or Ubuntu.

cite: How to create public mirrors for CentOS https://wiki.centos.org/HowTos/CreatePublicMirrors
> If you have a data cap which is lower than 15 TB (depending on region), please don't try to add that machine as a mirror. Please also note: If you are in a country which already has a lot of mirrors (like most western countries do, but also some Asian countries), please refrain from trying to add mirrors which have less than 100Mbit/s. If there aren't that many mirrors in your country, we will also accept lower speeds, naturally.

cite: Fedora Mirroring#Bandwidth https://fedoraproject.org/wiki/Infrastructure/Mirroring#Bandwidth
> Downloaders can consume as much bandwidth as you've got. Mirror sites have at least a 100Mbit/sec connection to the Internet, many have Gigabit/sec, 10 Gigabit/sec, or larger pipes. 100Mbit/sec is the minimum required for new mirrors in countries with adequate mirror coverage already. We can make exceptions for new mirrors in countries that have few mirrors. Connections to Internet2, National Lambda Rail, GEANET2, RedIRIS, or other such high speed research and educational networks are always appreciated.