All ports
Port548/UDP
afpovertcpPort
548
Protocol
UDP
Category
Well-Known
Service
afpovertcp
What is port 548?
Port 548/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the afpovertcp service.
AFP over TCP
Useful commands
nmapnmap -p 548 -sV example.comnetcatnc -zv example.com 548curlcurl -v http://example.com:548/telnettelnet example.com 548bash(echo > /dev/udp/example.com/548) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 548/udpDeny
sudo ufw deny 548/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 548 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 548 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=548/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 548" dir=in action=allow protocol=UDP localport=548Security 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- Outdated versions with vulnerabilities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 548/UDP?
Port 548/UDP is associated with the afpovertcp service. AFP over TCP
Is it safe to expose port 548 to the Internet?
It depends on the service and configuration. Port 548 (afpovertcp) 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 548 is open?
You can use nmap: `nmap -p 548 -sV example.com`, netcat: `nc -zv example.com 548`, or the bash command: `(echo > /dev/udp/example.com/548) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 548 on my firewall?
On Linux with UFW: `sudo ufw allow 548/udp` (open) or `sudo ufw deny 548/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 548 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 548" dir=in action=allow protocol=UDP localport=548`.
What applications and services use port 548?
Port 548/UDP is used by the afpovertcp service. Specific uses depend on the software and configuration. Check our related tools section for more information.