51 lines
1.6 KiB
Markdown
51 lines
1.6 KiB
Markdown
# digitalocean_dyndns
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Forked from [dc25/digitalocean_dyndns](https://github.com/dc25/digitalocean_dyndns).
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This script automatically keeps your DNS records for a HTTPS website working
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when you're hosting from a network with a dynamically allocated IP address, such
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as a typical home network.
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To use this script, first mark the shell files as runnable:
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```sh
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chmod +x ./dyndns.sh
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chmod +x ./get_ip_addr.sh
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```
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Then to set things up, first write your domain name, e.g. `example.com`, to
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`DIGITALOCEAN_DOMAIN`. Secondly, go to your DigitalOcean account and generate a
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Personal Access Token with scopes for creating, reading, and deleting domains.
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Write this to `DIGITALOCEAN_TOKEN`.
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The script should now run. Try it out:
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```sh
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./dyndns.sh 4 # for IPv$
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./dyndns.sh 6 # for IPv$
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```
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Go to the control panel in DigitalOcean for your domain, and check the A and
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AAAA records are what you expect. If they are, the next step is to get this
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script to run regularly.
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You could do this in a number of ways. Probably the easiest is with crontab.
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Run `crontab -e` to open your crontab for editing, and add these two lines:
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```cron
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* * * * * /home/.../dyndns.sh 4 > /tmp/dyndns.sh.4.log 2>&1
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* * * * * /home/.../dyndns.sh 6 > /tmp/dyndns.sh.6.log 2>&1
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```
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Wait one minute, and check the logs. If you want to see that it works, delete
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the REPEAT_CHECK_A and REPEAT_CHECK_AAAA files and wait for the script to run
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again. You may also want to have an MTA set up, as cron will try to send any
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unhandled output to your inbox.
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If you want to use this script for more than one domain, you can supply a domain
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name as a second argument. For example:
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```sh
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./dyndns.sh 4 example.com
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```
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