Port 9000DBGp
DBGp (Debugger Protocol) is a common debugging interface primarily used by PHP debugging tools such as Xdebug. Operating typically over TCP port 9000, it facilitates communication between the IDE and the server for efficient debugging workflows including breakpoint management, code inspection, and execution control..
- transport
- tcp
- in transit
- cleartext
- assignment
- unofficial
- risk
- 4/10
- lookups
- 11,725
single transport
payload readable on path
used by convention
caution
rank 339 of 993 · top 34%
3 other services are registered on port 9000. compare all 4 →
Technical Details
what runs on :9000-
Overview: DBGp, or the Common Debugger Protocol, is an open-debugging protocol designed to enable communication between an IDE and an application runtime for debugging purposes. It’s widely adopted by PHP tools such as Xdebug and NetBeans, providing both machine-readable and efficient means of exchanging commands and responses.
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Communication: DBGp primarily uses plain TCP sockets. The IDE connects to the server (or vice versa) and exchanges XML-formatted messages that encapsulate debugging commands such as setting breakpoints, stepping through code, inspecting stack information, or evaluating expressions.
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Architecture: DBGp is platform-independent and language-agnostic by design but is most commonly utilized in the PHP ecosystem. Although port 9000 is unofficially standardized, it is widely used and configurable. Because communication is unencrypted by default, deployment is often limited to development environments or protected networks.
Security Information
exposure of :9000risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
remote access averages 4.0 across 110 ports — this one sits level with it.
in transit
cleartext
credentials and payloads are readable by anyone on path
assignment
unofficial
used by convention, not registered — what answers here varies by deployment
reachable over
tcp
every listening transport is another surface to filter at the edge
security overview
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Common Vulnerabilities:
- Unauthenticated Access: Because DBGp lacks built-in authentication or encryption, exposing port 9000 to untrusted networks can allow attackers to connect, potentially hijacking debug sessions or injecting malicious debugging commands.
- Information Disclosure: Attackers gaining access to DBGp traffic can intercept sensitive application data, including source code, variables, and execution flows.
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Mitigations:
- Network Segmentation: Restrict DBGp traffic to trusted development or internal networks using firewalls and access control lists.
- Secure Tunnels: Wrap DBGp communication inside secure channels, such as SSH tunneling or VPN, to protect data confidentiality and integrity.
- Access Controls: Employ IP whitelisting and consider implementation of proxy authentication layers to limit who can initiate debug sessions.
- Disable in Production: Disable or restrict DBGp-related debugging on production systems to minimize security risks.
Related Ports
the 8 most looked-up other ports in remote access — 110 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :8000 | Intel Remote Desktop / Alternate HTTP Port | TCP | Web Services | safe | 84.3k |
| :8888 | D2GS Admin Console | TCP | Remote Access | caution | 83.7k |
| :8881 | Atlasz Secure Server | TCP | Web Services | caution | 67.6k |
| :5938 | TeamViewer | TCPUDP | Remote Access | caution | 65.0k |
| :8291 | Winbox MikroTik Admin | TCP | Security | caution | 62.9k |
| :8008 | IBM HTTP Server Admin | TCP | Web Services | caution | 58.3k |
| :135 | Microsoft EPMAP | TCPUDP | Security | caution | 51.9k |
| :23 | Telnet | TCP | Remote Access | caution | 34.8k |
risk mix of the 8 listed
- safe13%
- caution88%
0 of 8 encrypted