Port 1243SerialGateway
Port 1243 is assigned to SerialGateway, a service for gatewaying serial-device traffic.
- 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 4,808 · top 21%
Technical Details
what runs on :1243SerialGateway is registered on port :1243 over tcp and udp to Stephen LaValley. 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 found open rarely. What's listening is often not the registered service, so check before you assume.
find what's listening on :1243
# linux
sudo ss -tulpn 'sport = :1243'
# macos / bsd
sudo lsof -nP -i :1243
# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :1243nmap -sV -p T:1243 <host>
sudo nmap -sU -sV -p U:1243 <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 :1243risk 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 :1243 yet
known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.
Related Ports
ports registered around :1243, by lookups.
| port | service | risk | |||
|---|---|---|---|---|---|
| :1220 | QTSS Admin | TCP | Streaming | safe | 20.6k |
| :1293 | IPSec | TCPUDPtls | Security | caution | 17.8k |
| :1270 | SCOM Agent | TCPUDP | Network Services | caution | 15.6k |
| :1200 | SCOL Name Service | TCP | Network Services | caution | 15.5k |
| :1236 | Symantec BindView UNIX Mgmt | TCP | Security | caution | 14.7k |
| :1200 | Steam Friends Applet | UDP | Gaming | caution | 13.0k |
| :1182 | AcceleNet ITP | TCPUDP | Network Services | caution | 12.4k |
| :1234 | VLC RTP Streaming | UDP | Streaming | safe | 11.7k |
risk mix of the 8 listed
- safe25%
- caution75%
1 of 8 encrypted