CodexBloom - Programming Q&A Platform

RHEL 8 - how to to Enable SELinux Booleans for Nginx, Getting 'Invalid argument' scenarios

👀 Views: 16 💬 Answers: 1 📅 Created: 2025-06-11
SELinux RHEL Nginx bash

I'm trying to enable specific SELinux booleans for Nginx on my RHEL 8 server to allow it to connect to my database server over the network. However, when I run the following command: ```bash sudo setsebool -P httpd_can_network_connect on ``` I'm getting an 'Invalid argument' behavior. I checked the current SELinux status with: ```bash sestatus ``` which returns: ``` SELinux status: enabled SELinuxfs mount: /sys/fs/selinux SELinux root directory: /etc/selinux Loaded policy name: targeted Current mode: enforcing ``` I've also confirmed that the relevant SELinux policy is installed by checking: ```bash semanage boolean -l | grep httpd ``` This shows that `httpd_can_network_connect` is listed, but I still need to set it. I’ve tried rebooting the server after setting the boolean, and also running `restorecon` on the configuration files for Nginx, but the scenario continues. Is there something specific about SELinux on RHEL 8 that I might be missing, or any additional flags that need to be included with the `setsebool` command? I need to ensure that Nginx can communicate with my database on a secure level without disabling SELinux completely. Any insights would be greatly appreciated! My development environment is macOS. What's the best practice here?