- Close the port if nothing on the host needs it.
- Identify the process that listens on it (commands below) before opening it in a firewall.
- Expose a service only to the networks that use it.
Port 149: AED 512 Emulation Service
Port 149 is assigned by IANA to aed-512 (AED 512 Emulation Service).
149
How aed-512 works
Other servicesThe client sends a request to port 149 and the aed-512 service answers.
- Transport
- TCP · UDP
- Exposure risk
- not rated depends on the program listening
- Encryption
- Unknownnot stated by the registry
- IANA status
- Assigned1 registered service
- Range
- Well-known (0-1023)
- Category
- Other services
Is port 149 dangerous?
We have no specific security note for port 149. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 149
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| aed-512 | 149 | TCP, UDP | AED 512 Emulation Service | - | - |
// source: IANA service name and port number registry
Which program uses port 149, and is it reachable?
Linux
sudo ss -ltnup 'sport = :149' # process listening on 149
sudo lsof -nP -i :149macOS
sudo lsof -nP -i :149
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 149 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 149 netstat -ano | findstr :149
From another machine
nmap -p 149 -sV <host> sudo nmap -sU -p 149 <host> nc -zv <host> 149
Block it in the firewall
sudo ufw deny 149/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 149" -Direction Inbound -LocalPort 149 -Protocol TCP -Action Block # Windows
What is port 149 used for?
Port 149 is assigned by IANA to aed-512 (AED 512 Emulation Service).
Is port 149 TCP or UDP?
Port 149 is registered for TCP and UDP.
Is it safe to open port 149?
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. Close the port if nothing on the host needs it.
How do I check if port 149 is open?
On Linux run "ss -ltnup 'sport = :149'", on macOS "lsof -nP -i :149", and on Windows "netstat -ano | findstr :149" to see the local process. From another machine, "nmap -p 149 <host>" shows whether it is reachable.
Other other services ports
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp