All ports
Port4454/UDP
nssagentmgrPort
4454
Protocol
UDP
Category
Registered
Service
nssagentmgr
What is port 4454?
Port 4454/UDP is a Registered port, registered with IANA for specific applications. It is associated with the nssagentmgr service.
NSS Agent Manager
Useful commands
nmapnmap -p 4454 -sV example.comnetcatnc -zv example.com 4454curlcurl -v http://example.com:4454/telnettelnet example.com 4454bash(echo > /dev/udp/example.com/4454) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4454/udpDeny
sudo ufw deny 4454/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 4454 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 4454 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4454/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4454" dir=in action=allow protocol=UDP localport=4454Security 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- Outdated versions with vulnerabilities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 4454/UDP?
Port 4454/UDP is associated with the nssagentmgr service. NSS Agent Manager
Is it safe to expose port 4454 to the Internet?
It depends on the service and configuration. Port 4454 (nssagentmgr) 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 4454 is open?
You can use nmap: `nmap -p 4454 -sV example.com`, netcat: `nc -zv example.com 4454`, or the bash command: `(echo > /dev/udp/example.com/4454) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4454 on my firewall?
On Linux with UFW: `sudo ufw allow 4454/udp` (open) or `sudo ufw deny 4454/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 4454 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4454" dir=in action=allow protocol=UDP localport=4454`.
What applications and services use port 4454?
Port 4454/UDP is used by the nssagentmgr service. Specific uses depend on the software and configuration. Check our related tools section for more information.