Port 4355QSNet Workstation

QSNet Workstation service assigned to TCP and UDP port 4355.

transport
tcp · udp

2 transports registered

in transit
cleartext

payload readable on path

assignment
official

registered with iana

risk
1/10

safe

lookups
0

rank 993 of 4,390 · top 23%

Technical Details

what runs on :4355

QSNet Workstation is registered on port :4355 over tcp and udp. 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 :4355

this machine
# linux
sudo ss -tulpn 'sport = :4355'

# macos / bsd
sudo lsof -nP -i :4355

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :4355
another host
nmap -sV -p T:4355 <host>
sudo nmap -sU -sV -p U:4355 <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 details

Security Information

exposure of :4355

risk score

1/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

network services averages 2.7 across 1,343 ports — this one sits 1.7 below.

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 :4355 yet

known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.

the 8 most looked-up other ports in network services — 1,343 ports carry that label.

risk mix of the 8 listed

  • caution100%

0 of 8 encrypted