Port 198134D Database Communication
Port 19813 is primarily utilized for communication between 4D database servers and their clients. It enables the exchange of data, execution of queries, and synchronization of application logic in environments where 4D is deployed for rapid database development and management..
- transport
- tcp
- in transit
- cleartext
- assignment
- unofficial
- risk
- 4/10
- lookups
- 10,601
single transport
payload readable on path
used by convention
caution
rank 412 of 993 · top 41%
Technical Details
what runs on :19813Port 19813 serves as the primary conduit for client-server communication within the 4D database ecosystem. 4D, an integrated development environment and database platform, uses this port to transmit SQL queries, procedure calls, and data updates between clients and the backend server. This facilitates a seamless real-time user experience during data entry, retrieval, and manipulation.
The communication protocol over this port supports various functions including user authentication, transaction processing, table management, and application logic execution. Given 4D’s emphasis on rapid development, the port is optimized for interactive sessions where client applications require low-latency access to stored data while concurrently performing updates.
Typically, this port operates over TCP, ensuring reliable data transfer. It is designed primarily for internal network use within trusted environments or segments protected by network controls. Despite being largely unofficial in terms of IANA assignment, it is recognized within the 4D community as the standard port for this purpose.
Security Information
exposure of :19813risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
databases averages 4.0 across 58 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
Common Vulnerabilities
- Unauthorized Access: If left exposed, attackers may attempt brute-force or enumeration attacks to gain access to the database server.
- Data Interception: Communication over this port is often unencrypted, risking exposure of sensitive data in transit via sniffing techniques.
- Service Exploitation: Vulnerabilities within the 4D server software could be targeted for denial-of-service or remote code execution.
Common Mitigations
- Segmentation and Firewalling: Restrict access to this port through internal segmentation and firewall ACLs, permitting only trusted IP ranges.
- Secure Authentication: Enforce strong password policies and consider multi-factor authentication to limit unauthorized access.
- Encryption: Use encrypted tunnels (e.g., VPN, SSH port forwarding) to encapsulate traffic since native encryption is typically absent.
- Updates and Patching: Regularly update the 4D server software to remediate known vulnerabilities.
- Monitoring: Implement intrusion detection and log auditing to detect suspicious access attempts.
Related Ports
the 8 most looked-up other ports in databases — 58 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :8882 | Atlasz Secure App Server | TCP | Web Services | caution | 66.9k |
| :9001 | ETL Service Manager | TCPUDP | Databases | caution | 28.6k |
| :2484 | Oracle SSL Listener | TCPUDPtls | Security | caution | 25.0k |
| :5495 | Applix TM1 Admin | TCP | Databases | caution | 24.8k |
| :591 | FileMaker Web Sharing | TCP | Web Services | caution | 23.1k |
| :1521 | Oracle TNS Listener | TCP | Security | caution | 19.6k |
| :21001 | AMLFilter Admin | TCP | Security | caution | 19.2k |
| :18206 | Audition FAM DB | TCPUDP | Databases | caution | 19.1k |
risk mix of the 8 listed
- caution100%
1 of 8 encrypted