360 Monitoring agent installation error: To connect to monitoring.platform.360.io" insecurely...

Symptoms

Trying to install the 360 Monitoring agent with wget fails

ERROR: cannot verify monitoring.platform360.io's certificate, issued by '/C=US/O=Let's Encrypt/CN=R3':
Issued certificate has expired.
To connect to monitoring.platform360.io insecurely, use `--no-check-certificate'

Error in cURL request: SSL certificate problem: certificate has expired

Cause

The operating system is outdated, and contains obsolete information about root Certificate Authorities (CA).

Resolution

1. Connect to the server over SSH

2. Update the operating system

   • For RHEL-based (RHEL/CentOS/AlmaLinux/CloudLinux)

     # yum update

   • For Debian-based (Debian/Ubuntu)

     # apt update && apt upgrade

3. Install the agent