Which protocol is often used for internal connections within Zscaler's services?

The protocol commonly used for internal connections within Zscaler's services is HTTP. This is because HTTP (Hypertext Transfer Protocol) is the fundamental protocol used for transferring data on the web, and it facilitates communication between clients and servers effectively. Zscaler, as a cloud service provider focused on secure internet access, utilizes HTTP for many of its internal operations to manage and route traffic securely and efficiently.

HTTP is beneficial for Zscaler's environment as it allows for both performance and security. It can support features like real-time monitoring and security policies while being lightweight for web-based transactions. This aligns well with Zscaler's goal of providing secure, reliable, and fast internet access without the need for complex infrastructure changes at customer sites.

The other protocols, while useful for specific purposes, do not serve the same overarching role in Zscaler's internal architecture. For instance, FTP (File Transfer Protocol) is primarily used for transferring files and lacks the security nuances required for web communications, SSH (Secure Shell) is mainly used for secure remote access and management of network devices, and IMAP (Internet Message Access Protocol) is utilized for accessing emails rather than for broader web traffic handling.

Thus, HTTP stands out as the primary protocol for internal connections within