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what are the port numbers for DNS,FTP,TELNET,SMTP,NNTP
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Answer / jitendera kumar sinha
protocol port number
ftp data 20
ftp program 21
telnet 23
dns 53
nntp 119
smtp 25
| Is This Answer Correct ? | 91 Yes | 14 No |
Answer / anoop kumar gupta
PORT NUMBER:--
• 18 – MSP (Message Send Protocol)
• 20 - FTP (File Transfer Protocol) for data transfer
• 21 – FTP (File Transfer Protocol) for data control
• 23 – Telnet
• 22 – SSH - Remote Login Protocol
• 25 - SMTP (Simple Mail Transfer Protocol) for is
used for sending mails.
• 53 – DNS (Domain Name System)
• 67 – DHCP (Dynamic Host Configuration Protocol) for
sending data to the server – Bootps
• 68 – DHCP (Dynamic Host Configuration Protocol) for
data to the client - Bootpc
• 80 – HTTP (Hypertext Transfer Protocol)
• 109 – POP2
• 110 - POP3 (Post Office Protocol) used for
receiving mails but it uses log-in process.
• 119 – NNTP (Network News Transfer Protocol)
• 137 – NetBIOS Name Service
• 139 – NetBIOS Datagram Service
• 143 – IMAP4 (Interim Mail Access Protocol) used for
receiving mails.
• 150 – NetBIOS Session Service
• 161 – SNMP
• 179 – BGP (Border Gateway Protocol)
• 389 – LDAP (Lightweight Directory Access Protocol)
• 443 – HTTPS (HTTP-secure)
• 546 – DHCP Client
• 547 – DHCP Server
| Is This Answer Correct ? | 55 Yes | 2 No |
Answer / rakesh kumar agrawal
dns =53
ftp= 20
telnet=23
smtp=25
nntp=119
| Is This Answer Correct ? | 52 Yes | 5 No |
Answer / lamesgin
protocol port number
DNS 53
SMTP 25
FTP data 20
FTP control 21
TELNET 23
NNTP 119
| Is This Answer Correct ? | 33 Yes | 3 No |
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