Port 3900IBM UniData UDT OS
Port 3900 is primarily used by IBM UniData's UDT OS component, facilitating communication for UniData's multivalue database environment. This port supports database management and connectivity functions, enabling robust data manipulation and access in enterprise applications where UniData is deployed..
- transport
- tcp
- in transit
- cleartext
- assignment
- official
- risk
- 4/10
- lookups
- 6,352
single transport
payload readable on path
registered with iana
caution
rank 794 of 993 · top 80%
Technical Details
what runs on :3900IBM UniData is a multidimensional database system widely used in industries requiring flexible data models, such as retail and telecommunications. The UDT OS component operates on port 3900, supporting communication between client applications and the UniData server, handling requests involving data storage, query execution, and management operations.
Port 3900 is traditionally associated with TCP connections that provide reliable data transfer between distributed components of UniData-based systems. Its implementation allows high-throughput transaction processing, essential for responsive real-time enterprise applications that need to manage complex, hierarchical data structures effectively.
Administrators configuring IBM UniData environments typically ensure that port 3900 is accessible internally or externally, depending on the deployment architecture. Given its specialized usage, the traffic over this port is generally proprietary, tailored to IBM's protocols for optimal performance within their ecosystem.
Security Information
exposure of :3900risk 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
official
registered with iana for this service — scanners fingerprint it by number
reachable over
tcp
every listening transport is another surface to filter at the edge
security overview
Common vulnerabilities on port 3900 stem from unprotected database services. If exposed to untrusted networks, attackers may attempt brute force authentication, exploit software vulnerabilities in UniData, or perform unauthorized data extraction. Additionally, lacking application-layer encryption can lead to sensitive data exposure in transit.
Mitigations include:
- Employing strict network access controls, limiting port availability to trusted hosts
- Enabling strong, multi-factor authentication within UniData
- Keeping UniData software updated with security patches
- Implementing TLS tunneling or VPNs to encrypt communications
- Monitoring access logs for anomalies These practices reduce the attack surface and help protect the sensitive enterprise data managed over this port.
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