All ports
Port4950/UDP
sybasesrvmonPort
4950
Protocol
UDP
Category
Registered
Service
sybasesrvmon
What is port 4950?
Port 4950/UDP is a Registered port, registered with IANA for specific applications. It is associated with the sybasesrvmon service.
Sybase Server Monitor
Useful commands
nmapnmap -p 4950 -sV example.comnetcatnc -zv example.com 4950curlcurl -v http://example.com:4950/telnettelnet example.com 4950bash(echo > /dev/udp/example.com/4950) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4950/udpDeny
sudo ufw deny 4950/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 4950 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 4950 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4950/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4950" dir=in action=allow protocol=UDP localport=4950Security 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- Outdated versions with vulnerabilities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 4950/UDP?
Port 4950/UDP is associated with the sybasesrvmon service. Sybase Server Monitor
Is it safe to expose port 4950 to the Internet?
It depends on the service and configuration. Port 4950 (sybasesrvmon) 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 4950 is open?
You can use nmap: `nmap -p 4950 -sV example.com`, netcat: `nc -zv example.com 4950`, or the bash command: `(echo > /dev/udp/example.com/4950) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4950 on my firewall?
On Linux with UFW: `sudo ufw allow 4950/udp` (open) or `sudo ufw deny 4950/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 4950 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4950" dir=in action=allow protocol=UDP localport=4950`.
What applications and services use port 4950?
Port 4950/UDP is used by the sybasesrvmon service. Specific uses depend on the software and configuration. Check our related tools section for more information.