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** Scanning 36 ports will take some time ...

Why Portscan is needed?

Port scanner, a free online tool allows you to scan commonly used ports on your computer. Scan takes less than a minute, after which the result will be displayed in a table.

if you are connected to Internet, unnecessary opened ports can prove as a security threat. With this utility you can check for unwanted running services and can close them if those are not being used intentionally. Stopping unwanted services will also increase system performance.

Which ports are checked?

Below is a table of ports, describing protocols that check port scanner.

Number Port Protocol Description Quick List
1 20 FTP Data File Transfer Protocol - File Transfer Protocol. Port for data. N
2 21 FTP Control File Transfer Protocol - File Transfer Protocol. Port for commands. Y
3 22 SSH Secure SHell - "secure shell". Remote Management Protocol operating system. Y
4 23 telnet TErminaL NETwork. Protocol implementation text interface over the network. Y
5 25 SMTP Simple Mail Transfer Protocol - Simple Mail Transfer Protocol. Y
6 42 WINS Windows Internet Name Service. Mapping NetBIOS-name computers with IP-addresses of nodes N
7 43 WHOIS "Who is". Protocol obtaining the registration of ownership of domain names and IP addresses N
8 53 DNS Domain Name System - Domain Name System. N
9 67 DHCP Dynamic Host Configuration Protocol - Dynamic Host Configuration Protocol. Dynamic IP N
10 69 TFTP Trivial File Transfer Protocol - a simple file transfer protocol. N
11 80 HTTP / Web HyperText Transfer Protocol - hypertext transfer protocol. Y
12 110 POP3 Post Office Protocol Version 3 - receive e-mail protocol, version 3 Y
13 115 SFTP SSH File Transfer Protocol. Secure data transmission protocol. Y
14 123 NTP Network Time Protocol. Synchronization protocol computer's internal clock. N
15 137 NetBIOS Network Basic Input / Output System. Protocol for network I / O operations. Naming Service. N
16 138 NetBIOS Network Basic Input / Output System. Protocol for network I / O operations. Service connection. N
17 139 NetBIOS Network Basic Input / Output System. Protocol for network I / O operations. Service sessions. N
18 143 IMAP Internet Message Access Protocol. Application-level protocol for accessing e-mail. N
19 161 SNMP Simple Network Management Protocol - Simple Network Management Protocol. Device Management. N
20 179 BGP Border Gateway Protocol, Border Gateway Protocol. Dynamic routing protocol. N
21 443 HTTPS HyperText Transfer Protocol Secure) - protocol HTTP, which supports encryption. Y
22 445 SMB Server Message Block. The remote access to files, printers, and network resources. N
23 514 Syslog System Log. Protocol and sending log messages about system events occur. N
24 515 LPD Line Printer Daemon. Remote printing protocol on the printer. N
25 993 IMAP SSL Protocol IMAP, supports SSL encryption. N
26 995 POP3 SSL POP3 protocol supports SSL encryption. N
27 1080 SOCKS SOCKet Secure. Receiving protocol secure anonymous access. N
28 1433 MSSQL Microsoft SQL Server - database management system. Port to access the database. Y
29 3128 Proxy Currently the port often used proxies. N
30 3268 LDAP Lightweight Directory Access Protocol - lightweight directory access protocol (directory service). N
31 3306 MySQL Access to MySQL databases. Y
32 3389 RDP Remote Desktop Protocol - Remote Desktop for Windows. Y
33 5432 PostgreSQL Access to PostgreSQL databases. N
34 5900 VNC Virtual Network Computing - a system of remote access to the desktop computer. Y
35 5938 TeamViewer TeamViewer - Remote control system for ensuring your computer and data exchange. N
36 8080 HTTP / Web Alternate port for the HTTP protocol. Sometimes used proxies. Y