add ip-set, ip-rules, ip-alias pages
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Nick Peng
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en/docs/config/ip-alias.md
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en/docs/config/ip-alias.md
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# IP Alias
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SmartDNS provides IP address alias mapping, which can map the IP or IP range in the query result to a specific IP address.
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This feature can be used for CDN network acceleration with anycast IP, such as Cloudflare's CDN acceleration.
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## IP Alias Mapping
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Map the specified IP address to the target address, such as mapping the C class address of 1.2.3.4 to 192.168.1.1.
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```
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ip-alias 1.2.3.4/24 192.168.1.1
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```
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## Ignore IP Alias for Specific Domains
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In some cases, it may be necessary to exclude specific domains from IP alias mapping. This can be achieved by using domain rules to ignore IP alias mapping for those domains.
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```
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domain-rules /example.com/ -no-ip-alias
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```
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## Cloudflare CDN Acceleration
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Cloudflare CDN's IP addresses are all anycast IP addresses, and users can access websites hosted on Cloudflare through any Cloudflare IP address.
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With this feature, we can find the fastest IP address for accessing Cloudflare CDN on our own network and set up IP aliases to speed up all websites hosted on Cloudflare.
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Here are the steps:
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### Get the IP address range of Cloudflare and save it as an IP list file
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Cloudflare has publicly disclosed the IP address range of its CDN, which can be found here: https://www.cloudflare.com/ips/
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IPv4: https://www.cloudflare.com/ips-v4/#
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IPv6: https://www.cloudflare.com/ips-v6/#
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Save the above list as a text file, such as: `cloudflare-ipv4.txt`, `cloudflare-ipv6.txt`
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* cloudflare-ipv4.txt
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```
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173.245.48.0/20
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103.21.244.0/22
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103.22.200.0/22
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103.31.4.0/22
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141.101.64.0/18
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108.162.192.0/18
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190.93.240.0/20
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188.114.96.0/20
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197.234.240.0/22
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198.41.128.0/17
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162.158.0.0/15
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104.16.0.0/13
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104.24.0.0/14
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172.64.0.0/13
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131.0.72.0/22
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```
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* cloudflare-ipv6.txt
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```
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2400:cb00::/32
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2606:4700::/32
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2803:f800::/32
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2405:b500::/32
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2405:8100::/32
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2a06:98c0::/29
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2c0f:f248::/32
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```
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### Find the Fastest IP Address to Access Cloudflare on Your Network
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The community provides a tool to find the fastest Cloudflare IP address: [CloudflareSpeedTest](https://github.com/XIU2/CloudflareSpeedTest). We can use this tool to find the fastest IP address.
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The corresponding command is as follows:
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```
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./CloudflareSpeedTest -url https://down.heleguo.top/download/100MB.zip
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```
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After successful execution, you will get the fastest IP address.
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Since the tool randomly uses some IP addresses for testing, you can execute the above command multiple times to ensure that you get the fastest IP address.
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### Configure SmartDNS acceleration
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The principle is to use the ip-alias command to map the entire anycast IP of Cloudflare to the fastest IP address obtained from CloudflareSpeedTest.
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Configure SmartDNS as follows:
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```
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# Set up Cloudflare IPV4 alias mapping
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ip-set -name cloudflare-ipv4 -file /path/to/cloudflare-ipv4.txt
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ip-rules ip-set:cloudflare-ipv4 -ip-alias 162.159.58.17,162.159.58.124
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# Set up Cloudflare IPV6 alias mapping
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ip-set -name cloudflare-ipv6 -file /path/to/cloudflare-ipv6.txt
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ip-rules ip-set:cloudflare-ipv6 -ip-alias 2606:4700:17:d8e7:5e98:7d62:6674:c5a7
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```
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@@ -13,6 +13,7 @@ smartdns provides IP address whitelist, blacklist and ignore rules for filtering
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| blacklist-ip | Blacklist IP address | Accept IP addresses outside a specified range |
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| ignore-ip | Ignore IP address | Do not use a specific IP address, or range of IP addresses |
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| bogus-nxdomain | Spoof IP address filtering | Return SOA when the requested result contains a specified IP address |
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| ip-alias |IP Alias|IP Address Mapping，Can be used for CDN acceleration with Anycast IP, such as Cloudflare's CDN. refer to [IP Alias](../config/ip-alias.md)。
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## Whitelist IP addresses
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29
en/docs/config/ip-set.md
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29
en/docs/config/ip-set.md
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hide:
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- toc
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---
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# Using IP Address Sets
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To facilitate the configuration of IP addresses according to sets, for configurations that use `ip/subnet`, IP address sets can be specified for easy maintenance. The specific method is as follows:
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1. Use ip-set to configure the set file, such as
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```shell
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ip-set -name cloudflare -file /etc/smartdns/cloudflare-list.conf
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```
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The format of cloudflare-list.conf is one IP address per line, such as:
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```shell
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1.2.3.4
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192.168.1.1/24
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```
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1. Use IP address sets for options with `ip/subnet` configurations, simply configure `ip/subnet` as `ip-set:[set name]`, such as:
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```shell
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ignore-ip ip-set:cloudflare
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ip-rules ip-set:cloudflare -whitelist-ip
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ip-alias ip-set:cloudflare 192.168.1.1
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```
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