红帽公共 CIDR 列表（cdn.redhat.com 的 IP 地址)

现在，使用 yum 从红帽网络下载软件的功能是通过 CDN（content delivery network）实现的。您的 yum 命令会被自动发送到与所在机器地理位置相近的内容存储库，因此和以前的方法相比，现在的下载速度有显著提高。但是，在某些情况下，您的防火墙设置可能会阻塞对相应 CDN URL 的访问，从而导致 yum 无法完成从红帽下载软件的任务。如果出现这种情况，则需要更新您的防火墙设置，才可以通过红帽订阅管理（Red Hat Subscription Management）从 CDN 进行下载。

请注意： 您无法通过红帽订阅管理（Red Hat Subscription Management）来禁用下载的“位置感知”功能。下载的内容总是通过主机名 cdn.redhat.com 提供的，而与此主机名相对于的 IP 地址则会基于地理位置由第三方提供，因此这个 IP 地址可能会有所变化。我们推荐在可能的情况下，将这个域列入“白名单（whitelist）”。 当用户没有使用最新的 IP 地址列表（在下面提供）时，可能会在下载软件时遇到错误，yum 和 Red Hat Satellite 服务器所返回的错误会是：[Errno 256] No more mirrors to try.

以下是完整的 IP 地址列表，这个列表的 JSON 文件包括在本文档的附件中。如果您只需要了解自 2017 年 7 月 6 日以来的最新改变，请参阅文档后半部分的相关信息。

当前完整列表：

104.67.28.83/32
104.68.188.83/32
104.76.92.83/32
104.78.76.83/32
104.81.246.83/32
104.82.76.83/32
104.83.76.83/32
104.83.82.83/32
104.83.92.83/32
104.91.156.90/32
104.94.102.83/32
104.98.240.125/32
114.108.188.251/32
173.222.100.251/32
173.222.116.251/32
173.222.140.251/32
173.222.144.251/32
173.222.152.251/32
173.222.164.251/32
173.222.188.251/32
173.222.192.251/32
173.222.204.251/32
173.222.212.251/32
173.222.216.251/32
173.222.224.251/32
173.222.244.251/32
173.223.140.251/32
173.223.152.251/32
173.223.172.251/32
173.223.228.251/32
173.223.36.251/32
173.223.48.251/32
173.223.92.83/32
173.223.96.251/32
182.51.200.251/32
184.26.176.251/32
184.26.180.251/32
184.27.248.251/32
184.27.40.251/32
184.50.16.251/32
184.51.24.251/32
184.51.36.251/32
184.51.48.251/32
184.51.68.251/32
184.84.184.251/32
184.84.188.251/32
184.84.192.251/32
184.84.196.251/32
184.84.200.251/32
184.86.236.251/32
2.16.128.83/32
2.16.212.251/32
2.16.30.83/32
2.17.124.251/32
2.18.220.251/32
2.20.12.251/32
2.21.145.130/32
2.22.0.251/32
2.22.12.251/32
2.22.220.83/32
209.132.183.107/32
209.132.183.108/32
23.0.172.83/32
23.0.230.83/32
23.0.236.83/32
23.1.188.83/32
23.1.44.251/32
23.1.8.251/32
23.10.12.83/32
23.10.60.83/32
23.12.236.83/32
23.13.176.251/32
23.13.44.83/32
23.14.44.83/32
23.15.132.83/32
23.15.204.251/32
23.15.248.251/32
23.194.220.83/32
23.194.236.91/32
23.197.60.83/32
23.198.104.83/32
23.198.106.83/32
23.204.100.83/32
23.206.76.83/32
23.207.148.112/32
23.212.102.83/32
23.214.72.83/32
23.215.140.83/32
23.221.20.83/32
23.222.172.83/32
23.223.76.83/32
23.3.140.251/32
23.3.247.117/32
23.32.12.83/32
23.38.116.83/32
23.40.12.83/32
23.42.76.83/32
23.45.224.251/32
23.46.2.83/32
23.48.80.251/32
23.49.52.251/32
23.5.124.83/32
23.50.99.181/32
23.51.12.83/32
23.51.156.83/32
23.52.60.20/32
23.54.12.83/32
23.57.112.251/32
23.57.124.251/32
23.58.0.251/32
23.58.148.251/32
23.58.8.251/32
23.58.90.83/32
23.59.92.251/32
23.60.144.251/32
23.61.12.251/32
23.61.124.251/32
23.63.144.251/32
23.63.150.83/32
23.63.16.251/32
23.64.142.83/32
23.64.4.251/32
23.64.56.251/32
23.65.16.251/32
23.65.200.83/32
23.65.216.83/32
23.66.152.83/32
23.66.40.83/32
23.75.218.83/32
59.151.136.251/32
72.246.48.83/32
72.247.112.251/32
72.247.116.251/32
88.221.236.251/32
88.221.44.251/32
88.221.56.251/32
95.100.244.251/32
95.101.100.251/32
95.101.104.251/32
95.101.152.251/32
95.101.156.251/32
95.101.160.251/32
95.101.164.251/32
95.101.188.251/32
95.101.4.251/32
95.101.44.251/32
95.101.48.251/32
95.101.56.251/32
95.101.60.251/32
95.101.64.251/32
95.101.84.251/32
95.101.92.251/32
95.101.96.251/32
96.17.0.251/32
96.6.32.251/32
96.6.36.251/32

自 2017 年 7 月 6 日以来添加的新地址：

104.67.28.83/32
104.68.188.83/32
104.76.92.83/32
104.78.76.83/32
104.81.246.83/32
104.82.76.83/32
104.83.76.83/32
104.83.82.83/32
104.83.92.83/32
104.91.156.90/32
104.94.102.83/32
104.98.240.125/32
173.223.92.83/32
209.132.183.107/32
209.132.183.108/32
2.16.128.83/32
2.16.30.83/32
2.22.220.83/32
23.0.172.83/32
23.0.230.83/32
23.0.236.83/32
23.10.12.83/32
23.10.60.83/32
23.1.188.83/32
23.12.236.83/32
23.13.44.83/32
23.14.44.83/32
23.15.132.83/32
23.194.220.83/32
23.194.236.91/32
23.197.60.83/32
23.198.104.83/32
23.198.106.83/32
23.204.100.83/32
23.206.76.83/32
23.212.102.83/32
23.214.72.83/32
23.215.140.83/32
23.221.20.83/32
23.222.172.83/32
23.223.76.83/32
23.32.12.83/32
23.3.247.117/32
23.38.116.83/32
23.40.12.83/32
23.42.76.83/32
23.46.2.83/32
23.50.99.181/32
23.51.12.83/32
23.51.156.83/32
23.5.124.83/32
23.52.60.20/32
23.54.12.83/32
23.58.90.83/32
23.63.150.83/32
23.64.142.83/32
23.65.200.83/32
23.65.216.83/32
23.66.152.83/32
23.66.40.83/32
23.75.218.83/32
72.246.48.83/32

自 2017 年 7 月 6 日以来删除的地址：

173.222.128.251/32 
173.223.132.251/32 
173.223.168.251/32 
184.25.160.251/32 
184.25.244.251/32 
184.51.140.251/32 
2.17.184.63/32 
2.20.16.251/32 
23.211.152.245/32 
23.62.151.53/32 
95.101.108.251/32 
95.101.124.251/32
96.17.184.251/32