Hey, When dealing with web servers, it’s not uncommon to face the problem of “too many files open”. Usually, people solve that by modifying a number using ulimit -n, and then, sometimes that doesn’t work as such setting is per-process, and not system-wide. In this article, I go through how that ulimit setting works under the hood, and how you can make use of /proc to inspect other processes limits without the need for additional tools. This is the fourth article in a series of 30 arti...
