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// Monitoring & logging

Port 705: AgentX

Port 705 is assigned by IANA to agentx (AgentX).

705

How agentx works

Monitoring & logging
monitoringdeviceagentx monitoringdeviceagentx

The monitoring server collects metrics, alerts or logs from devices over port 705.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Well-known (0-1023)
Category
Monitoring & logging
01 Security

Is port 705 dangerous?

We have no specific security note for port 705. Its risk depends on the program actually listening on it. General advice for monitoring & logging services:

  • Restrict management and monitoring protocols to the monitoring network.
  • Replace community strings and default credentials.
  • Send logs over TLS.
02 Registry

IANA registry entries for port 705

ServicePortTransportDescriptionReferenceUpdated
agentx 705 TCP, UDP AgentX - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 705, and is it reachable?

Linux

sudo ss -ltnup 'sport = :705'      # process listening on 705
sudo lsof -nP -i :705

macOS

sudo lsof -nP -i :705

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 705 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 705
netstat -ano | findstr :705

From another machine

nmap -p 705 -sV <host>
sudo nmap -sU -p 705 <host>
nc -zv <host> 705

Block it in the firewall

sudo ufw deny 705/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 705" -Direction Inbound -LocalPort 705 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 705 used for?

Port 705 is assigned by IANA to agentx (AgentX).

Is port 705 TCP or UDP?

Port 705 is registered for TCP and UDP.

Is it safe to open port 705?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Restrict management and monitoring protocols to the monitoring network.

How do I check if port 705 is open?

On Linux run "ss -ltnup 'sport = :705'", on macOS "lsof -nP -i :705", and on Windows "netstat -ano | findstr :705" to see the local process. From another machine, "nmap -p 705 <host>" shows whether it is reachable.

05 Related
:161 SNMP udp · tcp · high risk :162 SNMP trap udp · tcp · moderate risk :9090 Prometheus / admin consoles tcp · udp · high risk :514 Syslog udp · tcp · moderate risk :6514 Syslog over TLS tcp · udp · dccp · low risk :5601 Kibana tcp · udp · high risk :391 SynOptics SNMP Relay Port tcp · udp :412 Trap Convention Port tcp · udp

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