Script to set DDNS Record via CloudFlare

mkdir /home/CloudFlare_DDNS
wget https://raw.githubusercontent.com/dovela/CloudFlare_DNS_Record/Setter/config.conf -O /home/CloudFlare_DDNS/config.conf
wget https://raw.githubusercontent.com/dovela/CloudFlare_DNS_Record/Setter/CloudFlare_DDNS_Setter.sh

you should write your configuration down to config.conf :

# notice: the following interpretations("# ...") is not allowed in file "config.conf"
# do not write interpretations into config file

# the email address of your cloudflare account
email=

# the zone id of your cloudflare account
zone_id=

# the api key of your cloudflare account
api_key=

# the domain you want to set
domain=

# ttl of record (seconds)
# min value:120
# max value:2147483647
ttl=

# the id of domain record you want to modify
# you can't see it before ran this script
# this id can be added automatically via "get domain record_id" selection in the script
record_id=

#"true" or "false",if local host is AWS' lightsail and you need replace ip automatically, please turn "true".
lightsail_switich=false  

#Created static ip's name of lightsail. Input anything you prefer.
lightsail_ipname=

#The name of the instance you already hold.It's like "CentOS-1GB-Tokyo-1"
lightsail_instance=

take a example, you should write like this:

email=example@gmail.com
zone_id=3456dfdhfi465ff4ae263ef35esd060f
api_key=84058228se28e28898b6ds3ej78yuf2136654

domain=example.example.net
ttl=120

lightsail_switich=true  
lightsail_ipname=ip-of-tokyo
lightsail_instance=CentOS-1GB-Tokyo-1

write those config down:

• email
• zone_id
• api_key
• domain
• ttl
• lightsail_switich (true or not）
• lightsail_ipname (if turn on)
• lightsail_instance (if turn on)

if this is the first time the script is run

bash CloudFlare_DDNS_Setter.sh install

then run

bash CloudFlare_DDNS_Setter.sh

and you will meet select required service :

1.get domain record_id
this function will get the record_id of your domain and insert it into config file automatically

2.create new domain record
this function can create a new A dns record

3.*configure lightsail if necessary
this function is be used to configure AWS' access key and the location of local host

after you finished step 1~2, you will need to run this :

bash CloudFlare_DDNS_Setter.sh --ddns

for above, the parameter --ddns is to update your dns A record to refresh your ddns. Freely let it automatically via such as crontab. this script have already added a record that is */3 * * * * bash CloudFlare_DDNS_Setter.sh --ddns to /var/spool/cron/root,and you can use crontab -e to modify it.

中文文档
https://blog.mcgrady.site/?p=75

Cloudflare API documentation v4
https://api.cloudflare.com/#zone-properties

AWS Documentation
https://docs.aws.amazon.com/index.html#lang/en_us

屌鸡tg@Unknow000 ipcheck service
https://ipcheck.need.sh/

皮皮虾窝
https://ppxwo.com/dynamicip.ppx

*:you can get your AWSAccessKeyId and AWSSecretKey via AWS Access keys. create new access key and save it.