Here is the detailed step-by-step guide to solve the problem presented:
**Problem**
DynDNS, a system for dynamic DNS updates and configuration, failed to update its DNS records after running this bot, which was supposed to trigger the DynDNS update process.
``
sql
/bash /root/.hermes/skills/cf-dyndns.sh 2>&1
`
**Step-by-Step Solution**
1. Find the error message from the output of bash /root/.hermes/skills/cf-dyndns.sh
: The error message displays something like "STATUS:NO_CHANGE".
2. Send a warning message to all three targets (Telegram, Discord private channel, and this email address):
- Add the following lines to your script:
`
markdown
# Send notification for DynDNS error
if [ $? -ne 0 ]; then
telegram:-1003980922525 --media '/path/to/image' \
discord:1511697499654459422 --media '/path/to/image' \
this_dm:"Hello, DynDNS is not updating!"
`
* Replace /path/to/image
with the actual path to an image that indicates the error.
3. Send a success message to all three targets (Telegram private channel, Discord private channel, and this email address):
- Add the following lines to your script:
`
markdown
# Send notification for DynDNS update
if [ $? == 0 ]; then
telegram:-1003980922525 --media '/path/to/image' \
discord:1511697499654459422 --media '/path/to/image' \
this_dm:"DynDNS is updating successfully!"
`
* Replace /path/to/image
with the actual path to an image that indicates a successful update.
4. To keep your targets informed and avoid sending "no change" notifications:
- Set up a cron job in /root/.hermes/scheduled_jobs.sh to continuously run the DynDNS update via cron (e.g., every minute):
`
bash
# Define a new cron job
30 0 * * * bash /root/.hermes/scheduled_jobs.sh
`
5. Keep your script clean and updated, as any issues may arise from using outdated code.
**Note:** To prevent spam and notification flood on Discord servers, the bot should only post one update to each server per hour. This is how you ensure a decent distribution of notifications between multiple targets:
`
markdown
# Set number of updates in hours for Discrn channel
update_discrnc_in_hours=1
# Set number of updates in hours for Telegram channels
update_telegram_in_hours=3
# Initialize arrays to store update locations
discord_updates=()
telegram_updates=()
# Loop every hour on the schedule
hourly_loop() {
# Read list of servers that need a new DynDNS update from file or send initial notification to all in config
server_list=$(cat /root/.hermes/dynndns_config.txt)
for s in $server_list; do
url=${s#*-}
github_token=${s##*githubToken=}
url_update=$(curl -X POST -H "Authorization: Bearer *** http://localhost:8080/update DynDNS "url=$url")
# Update array based on response from update process
if [ $? -ne 200 ]; then
discord_updates+=("$s:$price=$update_url")
# Add image to notification file for Telegram channel
url_update=$(cat /root/.hermes/telegram_config.txt)
curl -X POST -H "Authorization: Bearer *** http://localhost:8080/update DynDNS "url=$url_update" \
--data-"id=$price&source=Telegram" \
"url=$url_update" \
&>/home/user/dynndsservice_updates.txt
else
telegram_updates+=("$s:$price=$update_url")
# Add image to notification file for Discord channels
url_update=$(cat /root/.hermes/discord_CONFIG.txt)
curl -X POST -H "Authorization: Bearer *** http://localhost:8080/update DynDNS "url=$url_update" \
--data-"id=$price&source=Discord" \
"url=$url_update" \
&>/home/user/dynndsservice_updates.txt
fi
done
# Print update locations for target servers (for debugging)
echo $(printf '%s\t%s %s\n' "${discord_updates[@]}" | sort -u) > discord_updates.txt
echo $(printf '%s\n' "${telegram_updates[@]}" | tail -n +2) >> telegram_updates.txt
# Update configuration file if needed
sed /update=/c "update_discrnc_in_hours=$hourly_loop" /root/.hermes/dynndsservice_config.txt
}
# Execute hourly loop every hour in a scheduled job (you should create a scheduler)
30 0 * * * bash /root/.hermes/scheduled_jobs.sh
# Update notification configuration if needed
sed /update=.*update_discrnc_in_hours=/c update_discrnc_in_hours=1 /root/.hermes/dynndsservice_config.txt
``
By using a separate cron job with careful scheduling, you can avoid unwanted notifications and ensure that your DynDNS updates are done to the desired level throughout your bot's execution.