- Restrict management and monitoring protocols to the monitoring network.
- Replace community strings and default credentials.
- Send logs over TLS.
Port 10051: Zabbix Trapper
Port 10051 is assigned by IANA to zabbix-trapper (Zabbix Trapper).
10051
How zabbix-trapper works
Monitoring & loggingThe monitoring server collects metrics, alerts or logs from devices over port 10051.
- Transport
- TCP · UDP
- Exposure risk
- not rated depends on the program listening
- Encryption
- Unknownnot stated by the registry
- IANA status
- Assigned1 registered service
- Range
- Registered (1024-49151)
- Category
- Monitoring & logging
Is port 10051 dangerous?
We have no specific security note for port 10051. Its risk depends on the program actually listening on it. General advice for monitoring & logging services:
IANA registry entries for port 10051
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| zabbix-trapper | 10051 | TCP, UDP | Zabbix Trapper | - | 2006-02 |
// source: IANA service name and port number registry
Which program uses port 10051, and is it reachable?
Linux
sudo ss -ltnup 'sport = :10051' # process listening on 10051
sudo lsof -nP -i :10051macOS
sudo lsof -nP -i :10051
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 10051 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 10051 netstat -ano | findstr :10051
From another machine
nmap -p 10051 -sV <host> sudo nmap -sU -p 10051 <host> nc -zv <host> 10051
Block it in the firewall
sudo ufw deny 10051/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 10051" -Direction Inbound -LocalPort 10051 -Protocol TCP -Action Block # Windows
What is port 10051 used for?
Port 10051 is assigned by IANA to zabbix-trapper (Zabbix Trapper).
Is port 10051 TCP or UDP?
Port 10051 is registered for TCP and UDP.
Is it safe to open port 10051?
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 10051 is open?
On Linux run "ss -ltnup 'sport = :10051'", on macOS "lsof -nP -i :10051", and on Windows "netstat -ano | findstr :10051" to see the local process. From another machine, "nmap -p 10051 <host>" shows whether it is reachable.
Other monitoring & logging ports
: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