If you have a Linux or OSX (🤮) server and would like to notify new kernel messages like warnings or errors, you can do that with this small application.

If you run the app it collects and parses kernel messages with dmesg and calls an IFTTT webhook. Kernel messages will be in the value1 so if you want to get an e-mail with those messages, you need to use the value1 variable in the email body.

I created this app in node.js without dependencies, so you can pass parameters in an unorthodox mode. This application needs two parameters:

• event: This is the IFTTT webhook event name
• key: This is your unique IFTTT webhook key
• dmesg-params: Optional! You can pass extra params for dmesg
• threshold: Optional! When you run the script for the first time, only entries will be logged that created after the system start date + threshold. The threshold unit needs to be in millisecond.

you-are@the-best:~$ ./dmesg-ifttt-linux-x64 event=ifttt_event_name key=ifttt_webhook_key dmesg-params="--level=warn" threshold=3600000

I'm using this application with cron, and runs in for example every minute and done, I will get a mail if my server has a new warning or error. I saw, there is a watcher, but in this case, the polling was the easiest way to solve my problem.

If you would like to test your IFTTT settings, you can do that here: https://ifttt.com/maker_webhooks.

In this case, you have 2 options:

• Run application with node.js like an ordinary man.
• You can make your own executable.

To compile this application, you will need node.js and npm. If you have those of two, you just install pkg with npm install then run the npm run pkg command. The built package will be in the build folder. If you are unlucky and pkg doesn't have pre-built node.js to make executable, your PC will compile it on the fly and it can take several hours (this depends on your CPU speed).