Common Ports Flashcards

1
Q

SSH

A

tcp/22

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2
Q

DNS

A

udp/53

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3
Q

SMPT

A

tcp/25

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4
Q

SFTP

A

tcp/22

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5
Q

FTP

A

tcp/20 (active mode data)

tcp/21 (control)

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6
Q

TFTP

A

(udp) 69

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7
Q

TELNET

A

tcp/23

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8
Q

DHCP

A

udp/67, 68

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9
Q

HTTP

A

tcp/80

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10
Q

HTTPS

A

tcp/443

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11
Q

SNMP

A

udp/161

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12
Q

RDP

A

tcp/3389

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13
Q

NTP

A

udp/123

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14
Q

SIP

A

tcp/5060, 5061

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15
Q

SMB

A

445

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16
Q

POP3

A

110

17
Q

IMAP4

A

tcp/143

18
Q

LDAP

A

tcp/389

19
Q

LDAPS

A

tcp/636

20
Q

H.323

A

tcp/1720