- 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 5280: Bidirectional-streams Over Synchronous HTTP (BOSH)
Port 5280 is assigned by IANA to xmpp-bosh (Bidirectional-streams Over Synchronous HTTP (BOSH)).
5280
How xmpp-bosh works
Voice & chatPort 5280 sets up the call (who calls whom), then the voice travels as a stream of audio packets.
- Transport
- TCP
- 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 5280 dangerous?
We have no specific security note for port 5280. Its risk depends on the program actually listening on it. General advice for voice & chat services:
IANA registry entries for port 5280
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| xmpp-bosh | 5280 | TCP | Bidirectional-streams Over Synchronous HTTP (BOSH) | - | 2009-11-25 |
| - | 5280 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 5280, and is it reachable?
Linux
sudo ss -ltnup 'sport = :5280' # process listening on 5280
sudo lsof -nP -i :5280macOS
sudo lsof -nP -i :5280
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5280 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 5280 netstat -ano | findstr :5280
From another machine
nmap -p 5280 -sV <host> nc -zv <host> 5280
Block it in the firewall
sudo ufw deny 5280/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 5280" -Direction Inbound -LocalPort 5280 -Protocol TCP -Action Block # Windows
What is port 5280 used for?
Port 5280 is assigned by IANA to xmpp-bosh (Bidirectional-streams Over Synchronous HTTP (BOSH)).
Is port 5280 TCP or UDP?
Port 5280 is registered for TCP.
Is it safe to open port 5280?
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 5280 is open?
On Linux run "ss -ltnup 'sport = :5280'", on macOS "lsof -nP -i :5280", and on Windows "netstat -ano | findstr :5280" to see the local process. From another machine, "nmap -p 5280 <host>" shows whether it is reachable.