Monitor raw databases and servers directly via sockets.
What is it? Direct Transmission Control Protocol (TCP) socket connections to specific IP addresses and ports (e.g., 3306 for MySQL, 22 for SSH), bypassing standard HTTP layers.
The Risk (Nuksan)
If your database server crashes but your web frontend is up, your site displays a confusing 'Database Connection Error'. Standard HTTP monitors miss this entirely because the web server still returns a response.
The PingStag Solution
PingStag monitors the raw TCP ports of your backend architecture. If the database socket refuses a connection, you are instantly alerted to reboot that specific microservice.
Understanding the Technology
The internet operates on various layers of communication. While HTTP/HTTPS (ports 80 and 443) are used for rendering web pages, the underlying infrastructure relies on other specific TCP ports. For instance, a MySQL database communicates on port 3306, a PostgreSQL database on 5432, email servers on SMTP (25) or IMAP (143), and remote server access via SSH (22). A web application might appear online, but if its connection to the database port is severed, the application is functionally useless.
PingStag provides low-level TCP Port Monitoring, allowing network administrators to track the exact pulse of their microservices and physical hardware. By establishing a direct socket connection to the target IP address and port, PingStag verifies that the specific daemon or service is actively listening and accepting traffic. This eliminates the guesswork in root cause analysis; when an alert fires, you know exactly which component in the server stack has failed.