- Use strong credentials and TLS for signalling.
- Rate-limit registrations to stop extension scanning and toll fraud.
- Alert on unexpected chat protocols leaving servers (possible command and control).
Port 3449: HotU Chat
Port 3449 is assigned by IANA to hotu-chat (HotU Chat).
3449
How hotu-chat works
Voice & chatPort 3449 sets up the call (who calls whom), then the voice travels as a stream of audio packets.
- 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
- Voice & chat
Is port 3449 dangerous?
We have no specific security note for port 3449. Its risk depends on the program actually listening on it. General advice for voice & chat services:
IANA registry entries for port 3449
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| hotu-chat | 3449 | TCP, UDP | HotU Chat | - | 2002-04 |
// source: IANA service name and port number registry
Which program uses port 3449, and is it reachable?
Linux
sudo ss -ltnup 'sport = :3449' # process listening on 3449
sudo lsof -nP -i :3449macOS
sudo lsof -nP -i :3449
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3449 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 3449 netstat -ano | findstr :3449
From another machine
nmap -p 3449 -sV <host> sudo nmap -sU -p 3449 <host> nc -zv <host> 3449
Block it in the firewall
sudo ufw deny 3449/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 3449" -Direction Inbound -LocalPort 3449 -Protocol TCP -Action Block # Windows
What is port 3449 used for?
Port 3449 is assigned by IANA to hotu-chat (HotU Chat).
Is port 3449 TCP or UDP?
Port 3449 is registered for TCP and UDP.
Is it safe to open port 3449?
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. Use strong credentials and TLS for signalling.
How do I check if port 3449 is open?
On Linux run "ss -ltnup 'sport = :3449'", on macOS "lsof -nP -i :3449", and on Windows "netstat -ano | findstr :3449" to see the local process. From another machine, "nmap -p 3449 <host>" shows whether it is reachable.