All ports
Port4168/UDP
pslicserPort
4168
Protocol
UDP
Category
Registered
Service
pslicser
What is port 4168?
Port 4168/UDP is a Registered port, registered with IANA for specific applications. It is associated with the pslicser service.
PrintSoft License Server
Useful commands
nmapnmap -p 4168 -sV example.comnetcatnc -zv example.com 4168curlcurl -v http://example.com:4168/telnettelnet example.com 4168bash(echo > /dev/udp/example.com/4168) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4168/udpDeny
sudo ufw deny 4168/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 4168 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 4168 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4168/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4168" dir=in action=allow protocol=UDP localport=4168Security 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- Outdated versions with vulnerabilities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 4168/UDP?
Port 4168/UDP is associated with the pslicser service. PrintSoft License Server
Is it safe to expose port 4168 to the Internet?
It depends on the service and configuration. Port 4168 (pslicser) 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 4168 is open?
You can use nmap: `nmap -p 4168 -sV example.com`, netcat: `nc -zv example.com 4168`, or the bash command: `(echo > /dev/udp/example.com/4168) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4168 on my firewall?
On Linux with UFW: `sudo ufw allow 4168/udp` (open) or `sudo ufw deny 4168/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 4168 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4168" dir=in action=allow protocol=UDP localport=4168`.
What applications and services use port 4168?
Port 4168/UDP is used by the pslicser service. Specific uses depend on the software and configuration. Check our related tools section for more information.