Port 6440heliosd
TCP port 6440 is designated for the heliosd daemon associated with Cartesian Theatre.
- transport
- tcp
- in transit
- cleartext
- assignment
- official
- risk
- 1/10
- lookups
- 0
single transport
payload readable on path
registered with iana
safe
rank 993 of 5,692 · top 17%
Technical Details
what runs on :6440heliosd is registered on port :6440 over tcp to Cartesian Theatre, assigned February 2020. 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 :6440
# linux
sudo ss -tlpn 'sport = :6440'
# macos / bsd
sudo lsof -nP -i :6440
# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :6440nmap -sV -p T:6440 <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 :6440risk 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
every listening transport is another surface to filter at the edge
security overview
no security notes recorded for :6440 yet
known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.
Related Ports
ports registered around :6440, by lookups.
| port | service | risk | |||
|---|---|---|---|---|---|
| :6502 | Netop Remote Control | TCPUDP | Security | caution | 9.1k |
| :6444 | SGE Qmaster | TCPUDP | Network Services | caution | 8.8k |
| :6432 | PgBouncer | TCP | Databases | caution | 8.7k |
| :6445 | Sun Grid Engine Exec | TCPUDP | System | caution | 8.1k |
| :6389 | EMC CLARiiON | TCP | Databases | caution | 4.9k |
| :6503 | Netop School | UDP | Remote Access | caution | 4.7k |
| :6405 | SAP BusinessObjects Enterprise internal server | System | safe | 0 | |
| :6503 | BoKS Clntd | TCPUDP | System | safe | 0 |
risk mix of the 8 listed
- safe25%
- caution75%
0 of 8 encrypted