by Ramses Soto-Navarro ramses@sotosystems.com, 6/12/2025

Overview

htDig is a light web search engine written in C++. I’ve been using it for almost 20 years; makes it easy to search lots of text; great for IT administrators that need to search their own technical notes. htDig can also parse pdf, doc, and other types alike. htDig uses CGI. It is an old and simple web search engine but it still works great and is simple to setup once you know how. Here I put together some steps for a quick setup.

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Simple Backup Script

A simple backup script which backs up the OS directories of a Linux system remotely. root SSH keys must be configured between systems. SSHFS must be installed and the mailer must be running and configured to send mail. The script mounts the root directory of another system, in read-only mode, via SSHFS. It finds remote incremental files of OS directories only, which are one day old, then creates a tarball in the /dump/os/ directory; else a full backup every Friday. Next, deletes backup files more than 2 weeks old; all scheduled via cron. Last, it sends an email of the success or failure.

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