Port 10103eZrelay
eZrelay is an obscure TCP/UDP service assigned to port 10103, with no widely documented deployment.
- transport
- tcp · udp
- in transit
- cleartext
- assignment
- official
- risk
- 1/10
- lookups
- 0
2 transports registered
payload readable on path
registered with iana
safe
rank 993 of 6,221 · top 16%
Technical Details
what runs on :10103eZrelay is registered on port :10103 over tcp and udp to Albert C Yang, assigned March 2002. We don't have a technical write-up for it beyond the IANA registry entry.
In nmap's internet-wide scan data this port is never observed open, so if it's open on your network it's more likely a custom or misconfigured service than the registered one.
find what's listening on :10103
# linux
sudo ss -tulpn 'sport = :10103'
# macos / bsd
sudo lsof -nP -i :10103
# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :10103nmap -sV -p T:10103 <host>
sudo nmap -sU -sV -p U:10103 <host>run it? the handshake, the implementations you meet in the wild and the flags that matter come from the engineers who do.
add technical detailsSecurity Information
exposure of :10103risk score
1/ 10safe
routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.
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 · udp
udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite
security overview
no security notes recorded for :10103 yet
known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.
Related Ports
ports registered around :10103, by lookups.
| port | service | risk | |||
|---|---|---|---|---|---|
| :10051 | Zabbix Trapper | TCPUDP | Network Services | caution | 9.6k |
| :10050 | Zabbix Agent | TCPUDP | Security | caution | 7.8k |
| :10116 | NetIQ VoIP Assessor | TCPUDP | Network Services | caution | 5.0k |
| :10114 | NetIQ Qcheck | TCPUDP | Network Services | caution | 4.6k |
| :10115 | NetIQ Endpoint | TCPUDP | Security | caution | 4.4k |
| :10113 | NetIQ Endpoint | TCPUDP | Security | caution | 4.3k |
| :10081 | FAM Archive Server | TCPUDP | — | safe | 0 |
| :10080 | Amanda | TCPUDP | File Transfer | risk | 0 |
risk mix of the 8 listed
- safe13%
- caution75%
- risk13%
0 of 8 encrypted