All ports
Port1397/UDP
audio-activmailPort
1397
Protocol
UDP
Category
Registered
Service
audio-activmail
What is port 1397?
Port 1397/UDP is a Registered port, registered with IANA for specific applications. It is associated with the audio-activmail service.
Audio Active Mail
Useful commands
nmapnmap -p 1397 -sV example.comnetcatnc -zv example.com 1397curlcurl -v http://example.com:1397/telnettelnet example.com 1397bash(echo > /dev/udp/example.com/1397) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 1397/udpDeny
sudo ufw deny 1397/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 1397 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 1397 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=1397/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 1397" dir=in action=allow protocol=UDP localport=1397Security Risks
- Open relay used for spam
- Email spoofing
- Brute force attacks against email accounts
- Information disclosure in email headers
Frequently Asked Questions
What service runs on port 1397/UDP?
Port 1397/UDP is associated with the audio-activmail service. Audio Active Mail
Is it safe to expose port 1397 to the Internet?
It depends on the service and configuration. Port 1397 (audio-activmail) is a Registered port. If you need to expose it, keep the service updated, use strong authentication, and configure a firewall. It's always recommended to restrict access by IP when possible.
How do I check if port 1397 is open?
You can use nmap: `nmap -p 1397 -sV example.com`, netcat: `nc -zv example.com 1397`, or the bash command: `(echo > /dev/udp/example.com/1397) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 1397 on my firewall?
On Linux with UFW: `sudo ufw allow 1397/udp` (open) or `sudo ufw deny 1397/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 1397 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 1397" dir=in action=allow protocol=UDP localport=1397`.
What applications and services use port 1397?
Port 1397/UDP is used by the audio-activmail service. Specific uses depend on the software and configuration. Check our related tools section for more information.