Port 2161APC Agent
APC Agent is a proprietary management service used primarily with APC (American Power Conversion) network devices such as UPS systems. It enables remote management, monitoring, and control of power events and environmental data, facilitating automation and resilience of critical infrastructure..
- transport
- tcp
- in transit
- cleartext
- assignment
- official
- risk
- 4/10
- lookups
- 10,037
single transport
payload readable on path
registered with iana
caution
rank 464 of 993 · top 47%
Technical Details
what runs on :2161APC Agent running on TCP port 2161 facilitates remote communication between APC hardware devices—such as uninterruptible power supplies—and management consoles or software. It allows administrators to gather status information including load, temperature, voltage, battery status, alerts, and logs essential for infrastructure management.
This port often interfaces with APC management software like PowerChute Network Shutdown or APC Network Management Card firmware. The communication generally follows a proprietary protocol handled by APC software or SNMP extensions, enabling active configuration changes and automated event responses over the network.
Because it is widely deployed in datacenters and enterprise environments, APC Agent communication plays a key role in automated power management, graceful shutdown procedures, and centralized monitoring. Its continuous operation ensures resilience planning and minimized service disruption by proactively addressing power anomalies.
Security Information
exposure of :2161risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
network services averages 3.9 across 604 ports — this one sits 0.1 above.
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:
- Unencrypted communications, susceptible to eavesdropping and MiTM
- Use of weak or default authentication credentials
- Exposure of device management interfaces to untrusted networks
- Potential denial of service if the service is overwhelmed
Common Mitigations:
- Restrict access via network segmentation and firewalls, limiting access to trusted management subnets
- Employ strong authentication and change default passwords
- If possible, enable encryption or use a VPN to secure sensitive commands
- Regularly update firmware to address vendor patches
- Monitor and audit connection attempts and logs for suspicious behavior
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risk mix of the 8 listed
- caution100%
0 of 8 encrypted