**crontab settings for dynDNS update notifications**
To handle errors, successful updates, or other relevant events with custom notification messages, you can use the following cron job:
``
bash
#!/bin/bash
# Set variables for dynamic DNS hostnames and target channels
DynDNS_HOSTNAME="your_hostname"
TelegramChannelPrefix="https://t.me/your_channel_prefix"
DiscordChannelPrefix="https://discord.com Channel_prefix"
# Monitor DynDNS updates with a maximum retries of 3 times, send error notifications if failed twice.
for ((i=0; i<3 ; i++)); do
# Set the maximum number of consecutive failures before sending notification errors.
max_consecutive_failures=15
while [ $i -le $max_consecutive_failures ]; do
output=$(bash /root/.hermes/skills/cf-dyndns.sh 2>&1)
if echo "$output" | grep "STATUS:NO_CHANGE"; then continue; fi
# If the update was not successful, send an error notification to Telegram and Discord channels.
sender=${TelegramChannelPrefix}::-1003980922525
recipient=${DiscordChannelPrefix}::-1511697499654459422
if [ "$output" == "ERROR" ]; then
echo -e "\n\nError occurred: ${output##*ERROR}: $($output#$)"
echo -ne "\n$ sender send error message to $recipient
"
else
# Send a success notification with the relevant DynDNS update data.
message="DynDNS update successful. Here is the dynamic DNS update details:\n\n"
sender=${TelegramChannelPrefix}::-1003980922525
recipient=${DiscordChannelPrefix}::-1511697499654459422
message+="->\n$ output"
echo -ne "\n$ sender sent success update to $recipient
"
fi
# Sleep for a minute before resuming the monitoring loop.
sleep 60
done
done
`
Please modify the variables (e.g., DynDNS_HOSTNAME
, TelegramChannelPrefix
, etc.) according to your DynDNS hostname and specific notification channel preferences.
This script monitors dynDNS updates with a maximum of three retries, sending error notifications when an update fails. It also sends success notifications for every successful update detected. Make sure to use HTTPS connections (Sender.postMessage`) in the Telegram channel prefix.