Port Numbers In Computer Networks
Port Numbers In Computer Networks
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A port is an endpoint of communication in an operating system. While the term is also used for female connectors on hardware devices, in software it is a logical construct that identifies a specific process or a type of network service.
When referring to a network or to the Internet, a software or network port is a location where information is sent. For example, port 80 is the HTTP network port. A listing of commonly known and used ports can also be found on the below listing.
- 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
Below table contains the list of Countries and their Capitals and Currencies. .
Country Name Capital Currency .
Afghanistan Kabul Afghan Afghani .
Albania Tirane Albanian Lek .
Algeria Algiers Algerian Dinar .
Andorra Andorra la Vella Euro .
Angola Luanda Angolan Kwanza .
Antigua and Barbuda Saint Johns East Caribbean dollar .
Argentina Buenos Aires Argentine Peso .
Armenia Yerevan Noahs Ark silver coins Armenian Dram .
Australia Canberra Australian dollar .
Austria Vienna Euro .
Azerbaijan Baku Manat .
Bahrain Manama Bahrain dinar .
Bangladesh Dhaka Bangladeshi Taka .
Barbados Bridgetown Barbados dollar .
Belarus Minsk Belorussian ruble .
Belgium Brussels Euro .
Bhutan Thimphu Bhutanese Ngultrum Indian rupee .
Bolivia La Paz (administrative)...
A cat and dog life : To lead a life full of quarrels.
A cold fish : A person devoid of emotions.
A daredevil : A person who does not care for any consequences.
A deadlock : A position when no progress can be made.
Alive and kicking : Active and healthy.
At sea : Confused or lost.
Be in a tight corner : In a very difficult situation.
Behind one’s back : In the absence of.
Cat and dog life : Life full of quarrels.
Cock and bull story : Made up story that one should not believe.
Cry for the moon : Ask for the impossible.
Double : dealing : Deceiving.
Have a card up one’s sleeve : Have a secret plan in reserve.
Like a cat on hot bricks : Very nervous.
Run over : to drive over.
Run through : to squander or waste.
Tell against : To prove adverse to; to go against.
To bell the cat : To face the risk.
To break t...
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സംസ്ഥാനങ്ങളും നൃത്തരൂപങ്ങളും
നൃത്തരൂപങ്ങൾ സംസ്ഥാനങ്ങൾ .
അനകിയനാട് ആസാം .
ഒഡീസി ഒഡീഷ .
ഓട്ടൻതുള്ളൽ കേരളം .
കഥകളി കേരളം .
കാഥി പശ്ചിമ ബംഗാള് .
കായംഗ ഹിമാചൽപ്രദേശ് .
കുച്ചിപ്പുടി ആന്ധ്രാപ്രദേശ് .
കുമയോൺ ഉത്തരാഞ്ചൽ .
കൊട്ടം ആന്ധ്രാപ്രദേശ് .
കോലാട്ടം തമിഴ്നാട് .
ഗിഡ പഞ്ചാബ് .
ഗർബ ഗുജറാത്ത് .
ഛപ്പേലി ഉത്തർപ്രദേശ്...
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