Cloudflare优选ip并使用dnspodcn api设置解析，实现在本地网络环境下nas或者其他服务器上优选IP，并自动解析到自己的dnspodcn域名，实现速度最优。
优选ip
请参考github项目 XIU2/CloudflareSpeedTest: 🌩「自选优选 IP」测试 Cloudflare CDN 延迟和速度，获取最快 IP (IPv4 / IPv6)！另外也支持其他 CDN / 网站 IP ~ (github.com)
我的本地服务器为centos8系统，下载并解压到 /opt/cloudflareST 目录。
dnspodcn api 设置解析
参考rehiy/dnspod-shell: 基于DNSPod用户API实现的纯Shell动态域名客户端 (github.com) ，加入线路逻辑修改而来。
进入 /opt/cloudflareST 目录，新建以下脚本。需要修改：
- 修改arToken=“12345,xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx” 为你自己的dnspodcn的token
- 修改arDdnsCheck “xx.yy” “sub1” 为你自己的域名。
hostIp=$(awk -F ',' 'NR==2 {print $1}' /opt/cloudflareST/result.csv) 注意此处优选ip结果文件位置，结合你的运行目录修改。
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#!/bin/sh
#
###################################################################
# AnripDdns v6.4.0
#
# Dynamic DNS using DNSPod API
#
# Author: Rehiy, https://github.com/rehiy
# https://www.rehiy.com/?s=dnspod
#
# Collaborators: https://github.com/rehiy/dnspod-shell/graphs/contributors
#
# Usage: please refer to `ddnspod.sh`
#
################################################################### params ##
export arToken
# The url to be used for querying public ip address.
export arIp4QueryUrl="http://ipv4.rehi.org/ip"
export arIp6QueryUrl="http://ipv6.rehi.org/ip"
# The temp file to store the last record ip
# The error code to return when a ddns record is not changed
# By default, report unchanged event as success
export arErrCodeUnchanged=0
################################################################### logger ##
# Output log to stderr
arLog() {
>&2 echo "$@"
}
################################################################### http client ##
# Use curl or wget open url
# Args: url postdata
arRequest() {
local url="$1"
local data="$2"
local params=""
local agent="AnripDdns/6.4.0(wang@rehiy.com)"
if type curl >/dev/null 2>&1; then
if echo $url | grep -q https; then
params="$params -k"
fi
if [ -n "$data" ]; then
params="$params -d $data"
fi
curl -s -A "$agent" $params $url
return $?
fi
if type wget >/dev/null 2>&1; then
if echo $url | grep -q https; then
params="$params --no-check-certificate"
fi
if [ -n "$data" ]; then
params="$params --post-data $data"
fi
wget -qO- -U "$agent" $params $url
return $?
fi
return 1
}
# Get IPv4 by ip route or network
arWanIp4() {
local hostIp
hostIp=$(awk -F ',' 'NR==2 {print $1}' /opt/cloudflareST/result.csv)
echo $hostIp
}
################################################################### dnspod api ##
# Dnspod Bridge
# Args: interface data
arDdnsApi() {
local dnsapi="https://dnsapi.cn/${1:?'Info.Version'}"
local params="login_token=$arToken&format=json&lang=en&$2"
arRequest "$dnsapi" "$params"
}
# Fetch Record Id
# Args: domain subdomain recordType
arDdnsLookup() {
local errMsg
# Get Record Id
recordId=$(arDdnsApi "Record.List" "domain=$1&sub_domain=$2&record_type=$3&record_line=$4")
recordId=$(echo $recordId | sed 's/.*"id":"\([0-9]*\)".*/\1/')
if ! [ "$recordId" -gt 0 ] 2>/dev/null ;then
errMsg=$(echo $recordId | sed 's/.*"message":"\([^\"]*\)".*/\1/')
arLog "> arDdnsLookup - $errMsg"
return 1
fi
echo $recordId
}
# Update Record Value
# Args: domain subdomain recordId recordType [hostIp]
arDdnsUpdate() {
local errMsg
local recordRs
local recordCd
local recordIp
local lastRecordIp
yys_line=$6
arLastRecordFile=/run/ardnspod_last_record_"$2"."$1"."$yys_line"
if [ -f $arLastRecordFile ]; then
lastRecordIp=$(cat $arLastRecordFile)
fi
# fetch the last record ip from api
if [ -z "$lastRecordIp" ]; then
recordRs=$(arDdnsApi "Record.Info" "domain=$1&record_id=$3")
recordCd=$(echo $recordRs | sed 's/.*{"code":"\([0-9]*\)".*/\1/')
lastRecordIp=$(echo $recordRs | sed 's/.*,"value":"\([0-9a-fA-F\.\:]*\)".*/\1/')
fi
if [ "$5" = "$lastRecordIp" ]; then
arLog "> arDdnsUpdate - unchanged: $recordIp" # unchanged event
return $arErrCodeUnchanged
fi
recordRs=$(arDdnsApi "Record.Ddns" "domain=$1&sub_domain=$2&record_id=$3&record_type=$4&value=$5&record_line=$yys_line")
# parse result
recordCd=$(echo $recordRs | sed 's/.*{"code":"\([0-9]*\)".*/\1/')
recordIp=$(echo $recordRs | sed 's/.*,"value":"\([0-9a-fA-F\.\:]*\)".*/\1/')
if [ "$recordCd" != "1" ]; then
errMsg=$(echo $recordRs | sed 's/.*,"message":"\([^"]*\)".*/\1/')
arLog "> arDdnsUpdate - error: $errMsg"
return 1
elif [ "$recordIp" = "$lastRecordIp" ]; then
arLog "> arDdnsUpdate - unchanged: $recordIp" # unchanged event
echo $recordIp
return $arErrCodeUnchanged
else
arLog "> arDdnsUpdate - updated: $recordIp" # updated event
echo $recordIp > $arLastRecordFile
echo $recordIp
return 0
fi
}
################################################################### task hub ##
# DDNS Check
# Args: domain subdomain [6|4] interface
arDdnsCheck() {
local errCode
local hostIp
local recordType
arLog "=== Check $2.$1 $(printf $(echo -n "$3" | sed 's/\\/\\\\/g;s/\(%\)\([0-9a-fA-F][0-9a-fA-F]\)/\\x\2/g')) line==="
arLog "Fetching Host Ip"
recordType=A
hostIp=$(arWanIp4)
errCode=$?
if [ $errCode -eq 0 ]; then
arLog "> Host Ip: $hostIp"
arLog "> Record Type: $recordType"
elif [ $errCode -eq 2 ]; then
arLog "> Host Ip: Auto"
arLog "> Record Type: $recordType"
else
arLog "$hostIp"
return $errCode
fi
arLog "Fetching RecordId"
recordId=$(arDdnsLookup "$1" "$2" "$recordType" "$3")
errCode=$?
if [ $errCode -eq 0 ]; then
arLog "> Record Id: $recordId"
else
arLog "$recordId"
return $errCode
fi
arLog "Updating Record value"
arDdnsUpdate "$1" "$2" "$recordId" "$recordType" "$hostIp" "$3"
}
################################################################### end ##
cd /opt/cloudflareST
# https://github.com/XIU2/CloudflareSpeedTest
# 即需要找到 10 个平均延迟低于 300 ms 且下载速度高于 15MB/s 的 IP 才会停止测速
/opt/cloudflareST/CloudflareST -tl 300 -sl 15 -dn 10 -url https://cf.xiu2.xyz/url -o /opt/cloudflareST/result.csv
# Combine your token ID and token together as follows
arToken="12345,xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
# Web endpoint to be used for querying the public IPv6 address
# Set this to override the default url provided by ardnspod
# arIp4QueryUrl="http://ipv4.rehi.org/ip"
# arIp6QueryUrl="http://ipv6.rehi.org/ip"
# Return code when the last record IP is same as current host IP
# Set this to a value other than 0 to distinguish with a successful ddns update
# arErrCodeUnchanged=0
# Place each domain you want to check as follows
# you can have multiple arDdnsCheck blocks
## 联通 %E8%81%94%E9%80%9A
## 移动 %E7%A7%BB%E5%8A%A8
## 电信 %E7%94%B5%E4%BF%A1
yys_lines=("%E8%81%94%E9%80%9A" "%E7%A7%BB%E5%8A%A8" "%E7%94%B5%E4%BF%A1")
# 使用循环遍历数组
for yys_line in "${yys_lines[@]}"
do
arDdnsCheck "xx.yy" "sub1" "$yys_line"
done
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定时运行
我使用crontab，8小时运行一次，请根据需要自行修改。
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0 */8 * * * /opt/cloudflareST/dnspodcn.sh >> /opt/cloudflareST/log.txt
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