Been stuck at home ill all day, so I took the opportunity to type up an article on LDAP basics, which is hopefully an easy to understand introduction to LDAP. Given the complicated subject matter, I probably failed in a couple of places. If you find something you don't understand, I'd love to know so I can rewrite that section to make it clearer.

I also updated my robust shell scripting article to include a small section on (almost) race-free locking in bash, using IO redirection and bash's noclobber option. Thanks to Ralf Wildenhues for the suggestion.