Scan Network Ports
The port scanner tool will provide you with information regarding valid methods of connecting to a network. Scan your network for open ports and determine if those open ports need to be closed to provide more network security and less vulnerabilities.
What is a port?
Network ports are used for routing incoming information from a network to specific applications to a designated machine. Example, if you wanted to enable Remote Desktop on a Windows PC within your network, you'd need to make sure port 3389 was open and forwarding to the appropriate computer.
What is a port scanner?
The Port Scanner tool displays which ports on a network are open for communication. Whether or not a port is open can help with setting up IP security cameras, determining if a network is secure, as well as other network-related operations.
To begin, enter a valid IP address or URL at the top of the page. After that, you can scan ports on the IP/URL individually or in pre-made packages. If you are a Gold Member, you can also scan ports in a numeric range or in a custom package (no more than 100 ports at once for any scan type).
- To scan individually, select 'individual', input a valid port number, and select 'Scan'. The tool will display the status of the chosen port below the scan button.
- To scan by package type, select 'package' and choose a package from the drop down menu. Ports contained in the package will then be displayed below the drop down. When you have made your selection, select 'Scan'. The tool will display the status of each port in the package below the scan button.
- To scan by numeric range, select 'range', input a valid port number to start, input another valid port number to stop, and select 'Scan'. The tool will then display the status of each port between and including the starting and ending ports below the scan button.
- To scan by custom package, select 'custom', enter each desired port to scan on its own line in the text box shown, and select 'Scan'. The tool will then display the status of each inputted port below the scan button.
If a port is displayed as open, that means it is open for remote communication. Otherwise, the port should be closed to remote communication. Just because a port displays as closed through our tool, you should always double-check your router configuration to be sure. Slow network speeds or slow machines can lead to ports incorrectly being classified as closed.
Port Scan Packages
- 21 - File Transfer Protocol (FTP)
- 22 - Secure File Transfer Protocol (SFTP)
- 25 - Simple Mail Transfer Protocol (SMTP)
- 26 - [threat] W32.Netsky
- 80 - Hypertext Transfer Protocol (HTTP)
- 110 - Post Office Protocol v3 (POP3)
- 143 - Internet Message Access Protocol (IMAP)
- 443 - Hypertext Transfer Protocol over TLS/SSL (HTTPS)
- 587 - Simple Mail Transfer Protocol (Often more secure than port 25
- 993 - Internet Message Access Protocol over TLS/SSL (IMAPS)
- 995 - Post Office Protocol 3 over TLS/SSL (POP3S)
- 2525 - Remote Access Trojans
- 3306 - MySQL database system
Web - Scans ports in the Basic Package plus the ports below
- 23 - Telnet protocol - unencrypted text communications
- 43 - WHOIS protocol
- 53 - Domain Name System (DNS)
- 67 - Dynamic Host Configuration Protocol (DHCP) and Bootstrap Protocol (BOOTP) server
- 68 - Dynamic Host Configuration Protocol (DHCP) and Bootstrap Protocol (BOOTP) client
- 69 - Trivial File Transfer Protocol (TFTP)
- 123 - Network Time Protocol (NTP) - time synchronization
- 137 - NetBIOS Name Service
- 138 - NetBIOS Datagram Service
- 139 - NetBIOS Session Service
- 161 - Simple Network Management Protocol (SNMP)
- 162 - Simple Network Management Protocol Trap (SNMPTRAP)
- 389 - Lightweight Directory Access Protocol (LDAP)
- 636 - Lightweight Directory Access Protocol over TLS/SSL (LDAPS)
- 989 - FTPS Protocol (data), FTP over TLS/SSL
- 990 - FTPS Protocol (control), FTP over TLS/SSL
- 2077 - TrelliSoft Agent
- 2078 - TrelliSoft Server
- 2082 - cPanel default
- 2083 - Secure RADIUS Service (radsec)
- 2086 - WebHost Manager default
- 2087 - WebHost Manager default SSL
- 2095 - cPanel web mail default
- 2096 - cPanel SSL web mail default
- 1725 - Valve Steam Client
- 2302 - ArmA and Halo: Combat Evolved
- 3074 - Xbox Live and/or Games for Windows Live
- 3724 - World of Warcraft
- 6112 - Blizzard's Battle.net Gaming Service
- 6500 - Gamespy Arcade, Unreal, Tony Hawk, Warhammer, Starwars, Civilization III and IV, BoKS Master, Command & Conquer
- 12035 - Linden Lab viewer to sim on SecondLife
- 12036 - Second Life
- 14567 - Battlefield 1942
- 25565 - Minecraft Dedicated Server
- 27015 - GoldSrc and Source engine dedicated server port
- 28960 - Call of Duty
- 1080 - W32.Beagle, WinHole, W32.HLLW.Deadhat, and several others like keyloggers, remote peekers, etc.
- 2745 - Bagle Virus Backdoor
- 3127 - W32.Mockbot, W32.Solame, and others
- 4444 - Metasploit's default listener port
- 5554 - W32.Dabber and W32.Sasser
- 8866 - W32.Beagle
- 9898 - CrashCool and W32.Dabber
- 9988 - Used by many trojans and worms
- 12345 - Used by many trojans and worms
- 27374 - Used by many trojans, remote access hacks, worms, etc.
- 31337 - Used by many trojans and worms
If you have any questions about the Port Scanner tool or the results, please check out the IP Tools Questions Category.
If you have any questions about how to open or close ports on your network, please check out the Port Forwarding Questions Category.