All ports
Port355/UDP
datex-asnPort
355
Protocol
UDP
Category
Well-Known
Service
datex-asn
What is port 355?
Port 355/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the datex-asn service.
DATEX-ASN
Useful commands
nmapnmap -p 355 -sV example.comnetcatnc -zv example.com 355curlcurl -v http://example.com:355/telnettelnet example.com 355bash(echo > /dev/udp/example.com/355) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 355/udpDeny
sudo ufw deny 355/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 355 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 355 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=355/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 355" dir=in action=allow protocol=UDP localport=355Security Risks
- Unauthorized access to the service
- Data exposure if the service is unauthenticated
- Outdated versions with vulnerabilities
- Incorrect service configuration
Frequently Asked Questions
What service runs on port 355/UDP?
Port 355/UDP is associated with the datex-asn service. DATEX-ASN
Is it safe to expose port 355 to the Internet?
It depends on the service and configuration. Port 355 (datex-asn) is a Well-Known 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 355 is open?
You can use nmap: `nmap -p 355 -sV example.com`, netcat: `nc -zv example.com 355`, or the bash command: `(echo > /dev/udp/example.com/355) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 355 on my firewall?
On Linux with UFW: `sudo ufw allow 355/udp` (open) or `sudo ufw deny 355/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 355 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 355" dir=in action=allow protocol=UDP localport=355`.
What applications and services use port 355?
Port 355/UDP is used by the datex-asn service. Specific uses depend on the software and configuration. Check our related tools section for more information.