I would to generate a daily activity report for production Linux Servers. I could quite easily do this using shell scripts and scripting but I would just like to know if there is a class of tools that already do this. I seem to remember something that did this for logs.
I am interested in seeing which logs are being written. If new or unusual messages are being written to the logs.
How much the disk space has changed in the last 24 hours, where are the major changes. which folders are growing in diskspace. i.e. unrotated logs or undeleted temporary files.
What has been installed in the last 24 hours.
What processes are new and what is no longer running. What processes are leaking memory.
I'd like intelligent summaries of the information. i.e. if a bazillion new files have been created, I don't need see to all their names.
I'd like the report to be plain text and HTML and for it to be optionally mailed out to an admin.
Please let me know if this already exists and any ideas for what should be in a good daily report.