Common Ports Flashcards

1
Q

Port 20/21

A

File Transfer Protocol (FTP)

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2
Q

Port 22

A

Secure Shell (SSH)

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3
Q

Port 23

A

Telnet

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4
Q

Port 25

A

Simple Mail Transfer Protocol (SMTP)

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5
Q

Port 53

A

Domain name System (DNS)

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6
Q

Port 67/68

A

Dynamic Host Configuration Protocol (DHCP)

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7
Q

Port 80

A

Hypertext Transfer Protocol (HTTP)

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8
Q

Port 110

A

Post Office Protocol 3 (POP3)

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9
Q

Port 137/139

A

Network Basic Input/Output System (NetBIOS)/ NetBIOS over TCP/IP (NetBT)

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10
Q

Port 143

A

Internet Mail Access Protocol (IMAP)

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11
Q

Port 161/162

A

Simple Network Management Protocol (SNMP)

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12
Q

Port 389

A

Lightweight Directory Access Protocol (LDAP)

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13
Q

Port 443

A

Hypertext Transfer Protocol Secured (HTTPS)

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14
Q

Port 445

A

Server Message Block (SMB)/ Common Internet File System (CIFS)

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15
Q

Port 3389

A

Remote Desktop Protocol (RDP)

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