https://github.com/cfstras/ddns

Helper scripts for updating a dynamic DNS via nsupdate.
https://github.com/cfstras/ddns

Last synced: 6 days ago
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Helper scripts for updating a dynamic DNS via nsupdate.

• Host: GitHub
• URL: https://github.com/cfstras/ddns
• Owner: cfstras
• Created: 2013-11-18T10:19:02.000Z (over 12 years ago)
• Default Branch: master
• Last Pushed: 2013-11-25T19:04:46.000Z (over 12 years ago)
• Last Synced: 2026-05-14T01:37:03.240Z (about 2 months ago)
• Language: Shell
• Size: 132 KB
• Stars: 3
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
ddns

====

Helper scripts for updating a dynamic DNS domain name.  

Uses **ip addr** and **curl** to get your IPs, sends them out with nsupdate.

usage

-----

- Set up your dynamic DNS zone:

  - `mkdir /var/lib/bind`

  - `touch /var/lib/bind/db.dynamic.example.com.jnl`

  - copy and edit `db.dynamic.example.com` to `/var/lib/bind`

  - insert and edit the contents of `named.conf.local` into your

    `/etc/bind/named.conf.local`

  - run `ddns-confgen` and copy the generated `key` to /etc/bind

  - make sure the key is only readable by the bind user

- On your clients:

  - get the keyfile, chmod it to be only be readable by the user which the script

    will run as

  - Copy `config.example` to a file named `config`

  - Edit `config` to your desires

  - Execute:

```bash

    SEND=false ./update # to see what would be sent

    ./update # to actually send it

```

requirements

------------

These are the minimum requirements for running the script on a client:

- **nsupdate**  

  can be found in the dnsutils package on most distros

- **bash**

- **GNU awk**  

  can be found in the gawk package

- **curl**

- **ip utility**  

  can be found in the iproute2 package