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75 lines
2.8 KiB
Bash
Executable file
75 lines
2.8 KiB
Bash
Executable file
#!/bin/bash
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#
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#
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#########################################################
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# WHAT DOES THIS SCRIPT DO ? #
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#########################################################
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# This script will do two things :
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# - Configure your freedns subdomain so that if points to your server's IP address
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# - Create a cron job which will change you freedns IP configuration when needed
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#
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#########################################################
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# INSTRUCTIONS #
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#########################################################
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#
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# Get a free subdomain from freedns and use it for your dynamic ip address
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#
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# - Register for a Free domain at http://freedns.afraid.org/signup/
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# - WATCH THIS: Make sure you choose a domain with as less subdomains as
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# possible. Why? Let's encrpyt issues a limited count of certificates each
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# day. Possible other users of this domain will try to issue a certificate
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# at the same day.
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# - Logon to FreeDNS (where you just registered)
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# - Goto http://freedns.afraid.org/dynamic/
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# - Right click on "Direct URL" and copy the URL and paste it somewhere.
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# - You should notice a large and unique alpha-numeric key in the URL
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# (after the question mark)
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#
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# http://freedns.afraid.org/dynamic/update.php?alpha-numeric-key
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#
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# Provided your url from freedns is
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#
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# http://freedns.afraid.org/dynamic/update.php?U1Z6aGt2R0NzMFNPNWRjbWxxZGpsd093OjE1Mzg5NDE5
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#
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# Then you have to provide
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#
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# freedns_key=U1Z6aGt2R0NzMFNPNWRjbWxxZGpsd093OjE1Mzg5NDE5
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#
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#
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#########################################################
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# THIS IS WHERE YOU ADD YOUR KEY #
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#########################################################
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freedns_key=$ddns_key
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##########################################################
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# DO NOT EDIT AFTER THIS #
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##########################################################
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function install_run_freedns {
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print_info "run freedns (dynamic IP)..."
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if [ -z "$freedns_key" ]
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then
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die "freedns was not started because 'freedns_key' is empty in ddns/freedns.sh"
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exit 0
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else
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wget --no-check-certificate -O - http://freedns.afraid.org/dynamic/update.php?$freedns_key
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fi
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}
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function configure_cron_freedns {
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print_info "configure cron for freedns..."
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# Use cron for dynamich ip update
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# - at reboot
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# - every 30 minutes
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grep $freedns_key /etc/crontab
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if [ $? != 0 ]
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then
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echo "@reboot root http://freedns.afraid.org/dynamic/update.php?$freedns_key > /dev/null 2>&1" >> /etc/crontab
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echo "*/30 * * * * root wget --no-check-certificate -O - http://freedns.afraid.org/dynamic/update.php?$freedns_key > /dev/null 2>&1" >> /etc/crontab
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else
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print_info "cron for freedns was configured already"
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fi
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}
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