Tired of running commands every month, day, hour, or minute to check your system's health? Or are you debugging a random system failure, which is always the hardest? Daimon is for you. We have been using it to monitor the IT infrastructure at the Michigan Neuroscience Institute, University of Michigan, for decades.
"Daimon" runs a sub-command specified in crontab, compares its output with the standard file(s) under the TASK directory in var/, records the difference, logs it with a timestamp, marks known critical alerts, and sends out email alerts if specified by the user in /etc/daimon.conf.
"dm-check" prints a summary report or checks for abnormal tasks. Users can choose to confirm whether the status is abnormal or a new normal.
"dm-linux" prints storage usage, CPU load percentage, internal temperature, drive SMART attributes, file changes, directory permissions, LSI RAID, and Areca RAID. It also supports custom commands.
"dm-ups" prints UPS status; it supports two APC UPS models. Feel free to add new models and send me a pull request.
"dm-scp" copies a local file or directory to mutiple nodes in parallel.
"dm-ssh" is a unique parallel SSH/SCP tool based on GNU parallel. It merges the output of all SSH commands as much as possible to save your precious eyes and fingers, as well as your useless mouse.
cd /opt
git clone https://github.com/daimh/daimon.git
ln -s /opt/daimon/etc/daimon.conf /etc
Then check out file etc/crontab.example, and add /opt/daimon/bin to your PATH
dm-linux localhost -d 99P
dm-linux localhost -d 1P:/
daimon -t test/localhost -- dm-linux localhost -d 99P
daimon -t test/localhost -- dm-linux localhost -d 1P:/
dm-check -ar #print summary report for all
dm-check -a #check abnormal task
use '-h' with each command
Contributions are always welcome!
Fan Meng, Ph.D., Research Associate Professor, Psychiatry, UMICH
Ruth Freedman, MPH, former administrator of MNI, UMICH
Julie Gales, Administrative Director, MNI, UMICH
Andy Lin, MNI, UMICH
Huda Akil, Ph.D., Director of MNI, UMICH
Stanley J. Watson, M.D., Ph.D., Director of MNI, UMICH
Prashanth Thinakaran
MIT License
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