Common Ports
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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FTP Data Port | TCP 20
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FTP Control Port | TCP 21
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SSH | TCP 22
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SCP (uses SSH) | TCP 22
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SFTP (uses SSH) | TCP 22
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Telnet | TCP 23
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SMTP | TCP 25
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TACACS+ | TCP 49
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DNS name queries | UDP 53
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DNS zone transfers | TCP 53
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TFTP | UDP 69
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HTTP | TCP 80
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Kerberos | UDP 88
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POP3 | TCP 110
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SNMP | UDP 161
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SNMP trap | UDP 162
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NetBIOS (TCP rarely used) | TCP/UDP 137
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NetBIOS | UDP 138
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NetBIOS | TCP 139
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IMAP4 | TCP 143
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LDAP | TCP 389
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HTTPS | TCP 443
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SMTP SSL/TLS | TCP 465
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IPsec (for VPN with IKE) | UDP 500
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LDAP/TLS | TCP 636
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LDAP/TLS | TCP 636
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IMAP SSL/TLS | TCP 993
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POP SSL/TLS | TCP 995
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L2TP | UDP 1701
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PPTP | TCP 1723
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Remote Desktop Protocol (RDP) | TCP/UDP 3389
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Microsoft SQL Server | TCP 1433
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
mspeight
Popular Computers sets