All ports
Port5445/SCTP
smbdirectPort
5445
Protocol
SCTP
Category
Registered
Service
smbdirect
What is port 5445?
Port 5445/SCTP is a Registered port, registered with IANA for specific applications. It is associated with the smbdirect service.
Server Message Block over Remote Direct Memory Access
Useful commands
nmapnmap -p 5445 -sV example.comnetcatnc -zv example.com 5445curlcurl -v http://example.com:5445/telnettelnet example.com 5445bash(echo > /dev/sctp/example.com/5445) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 5445/sctpDeny
sudo ufw deny 5445/sctpiptablesAllow
sudo iptables -A INPUT -p sctp --dport 5445 -j ACCEPTDeny
sudo iptables -D INPUT -p sctp --dport 5445 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=5445/sctpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 5445" dir=in action=allow protocol=SCTP localport=5445Security 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- Outdated versions with vulnerabilities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 5445/SCTP?
Port 5445/SCTP is associated with the smbdirect service. Server Message Block over Remote Direct Memory Access
Is it safe to expose port 5445 to the Internet?
It depends on the service and configuration. Port 5445 (smbdirect) 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 5445 is open?
You can use nmap: `nmap -p 5445 -sV example.com`, netcat: `nc -zv example.com 5445`, or the bash command: `(echo > /dev/sctp/example.com/5445) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 5445 on my firewall?
On Linux with UFW: `sudo ufw allow 5445/sctp` (open) or `sudo ufw deny 5445/sctp` (close). With iptables: `sudo iptables -A INPUT -p sctp --dport 5445 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 5445" dir=in action=allow protocol=SCTP localport=5445`.
What applications and services use port 5445?
Port 5445/SCTP is used by the smbdirect service. Specific uses depend on the software and configuration. Check our related tools section for more information.