All ports
Port22305/UDP
cisPort
22305
Protocol
UDP
Category
Registered
Service
cis
What is port 22305?
Port 22305/UDP is a Registered port, registered with IANA for specific applications. It is associated with the cis service.
CompactIS Tunnel
Useful commands
nmapnmap -p 22305 -sV example.comnetcatnc -zv example.com 22305curlcurl -v http://example.com:22305/telnettelnet example.com 22305bash(echo > /dev/udp/example.com/22305) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 22305/udpDeny
sudo ufw deny 22305/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 22305 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 22305 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=22305/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 22305" dir=in action=allow protocol=UDP localport=22305Security 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- Outdated versions with vulnerabilities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 22305/UDP?
Port 22305/UDP is associated with the cis service. CompactIS Tunnel
Is it safe to expose port 22305 to the Internet?
It depends on the service and configuration. Port 22305 (cis) 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 22305 is open?
You can use nmap: `nmap -p 22305 -sV example.com`, netcat: `nc -zv example.com 22305`, or the bash command: `(echo > /dev/udp/example.com/22305) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 22305 on my firewall?
On Linux with UFW: `sudo ufw allow 22305/udp` (open) or `sudo ufw deny 22305/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 22305 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 22305" dir=in action=allow protocol=UDP localport=22305`.
What applications and services use port 22305?
Port 22305/UDP is used by the cis service. Specific uses depend on the software and configuration. Check our related tools section for more information.