![]() */5 * * * * root /usr/local/bin/noip_updater. For this purpose we work on crontab: $ sudo nano /etc/crontabĪt the bottom, the following entry is simply added and the change is saved on the crontab: # NO-IP update To execute the bash script at regular intervals, a cronjob must be created. LOGTEXT="(error) Could not understand the response from No-IP. Retry the update in no sooner than 30 minutes." LOGTEXT="(911) A fatal error on our side such as a database outage. LOGTEXT="(abuse) Username is blocked due to abuse." LOGTEXT="(!donator) An update request was sent including a feature that is not available." LOGTEXT="(badagent) Client disabled - No-IP is no longer allowing requests from this update script." LOGTEXT="(badauth) Invalid username password combination." LOGTEXT="(nohost) Hostname supplied does not exist under specified account. LOGTEXT="(nochg) IP address is current: $RESPONSE_B no update performed." sh file and the USERNAME, PASSWORD and HOST variables must be customized: The following content must be copied to the noip_updater. $ sudo chmod 700 /usr/local/bin/noip_updater.sh sh and the permissions are adjusted: $ sudo nano /usr/local/bin/noip_updater.sh The script is then stored under /usr/local/bin/noip_updater. Curl must therefore be installed first: $ sudo apt-get install curl all IP updates and occurred errors are loggedĪs described above, the script uses curl to access NO-IP.the newly determined IP is cached for future comparisons.If the IP has changed, NO-IP is notified by curl.the current IP is compared with the cached IP.the script uses Cronjob to regularly determine the current IP.The script is certainly not perfect, but it has been working reliably for months now. I therefore wrote myself a small bash-script for a reliable and fast update of the IP-address. Web Redirects only work for HTTP and cannot be used to remotely access your computer. Web Redirect: This maps your hostname to a web URL. With Port 80 redirect you can simply type the hostname:. However, the Dynamic DNS Update Client (DUC) offered by NO-IP never really worked reliably for me and so I had no access to the Raspberry Pis on a regular basis. Example: Without Port 80 redirect you would have to type in the following into your browser: :8080. com as a DynDNS service for some time now. Since these usually hang behind Internet connections with dynamic IP, I have been using no-ip. In the meantime I have used a large number of Raspberry Pis for measuring and monitoring purposes.
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