Packet data contains a special number in its header, called port. The typical use of the port in the computer is to map data to a specific process running on it.<\/p>\n
To be more precise the port is defined with the following example.<\/p>\n
Let us suppose that the IP addresses are the street addresses of an apartment building and the port number is a specific apartment of that building. If we dispatch a letter to building without mentioning the specific apartment number so how would one that that actually should belong to this letter? Same is the case with the IP address and the port number. The ender has to make sure that the port number is also mentioned along with the address in order to make the letter carry to the right domicile. <\/p>\n
A server using various server processes will provide both SMTP for sending and POP3 for receiving while sending and receiving an e-mail. The port number will specify the association of a certain data with a certain process. Network ports are not used by all networks. ICMP is the example of a network not using ports. The source port and the destination port are specified by the packet header in both TCP and UDP each of which ranges 0 to 65535. It also specifies the IP numbers in other things. A port may bind to a specifics process for sending or receiving the data means the incoming packet number whose destination number matches to it will be listened by it as well as the sending of an outgoing packet whose destination number matches to it. The process can bind to multiple ports. Application that can be implemented for the common services will accept some specific port numbers which have been defined for use with the available protocol by conversion. This ensures the security to avoid the unreliable process working on a system. <\/p>\n
The process possessed by the super user can listen to port numbers ranging 0 to 1023 in UNIX. The port number is readily interpreted by the sending, receiving as well as the other aspect of the networking infrastructure because it forms the part of packet header. Firewalls are thought to respond differently to respond to port number in the lights of their paths and sources.<\/p>\n
An application of this is port forwarding. The port scanning is the effort to connect a broad range of services in sequence in a single computer.<\/p>\n","protected":false},"excerpt":{"rendered":"
Packet data contains a special number in its header, called port. The typical use of the port in the computer is to map data to a specific process running on it. To be more precise the port is defined with the following example. Let us suppose that the IP addresses are the street addresses of […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1280],"tags":[],"class_list":["post-808","post","type-post","status-publish","format-standard","category-what-is","entry"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":751,"url":"https:\/\/www.amitbhawani.com\/blog\/file-transfer-protocol-ftp\/","url_meta":{"origin":808,"position":0},"title":"What is File Transfer Protocol (FTP)","author":"Amit Bhawani","date":"July 21, 2008","format":false,"excerpt":"Is a process of transferring data from one computer to another through a network. We may call internet as an example of this. It is actually the exchanging and manipulating files and data over a computer network based on TCP. As FTP is independent of the involving operating systems its\u2026","rel":"","context":"In "What is Guide"","block_context":{"text":"What is Guide","link":"https:\/\/www.amitbhawani.com\/blog\/category\/what-is\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4959,"url":"https:\/\/www.amitbhawani.com\/blog\/setting-up-linksys-router\/","url_meta":{"origin":808,"position":1},"title":"How to Setup a LinkSys Router?","author":"Amit Bhawani","date":"July 13, 2009","format":false,"excerpt":"A LinkSys router is perhaps one of easiest routers to set up and therefore is used widely for its user friendliness and compatibility with a lot of systems. The compatibility factor is what is the common \u2018link\u2019 between its sales and productivity. To set up the router, first the hardware\u2026","rel":"","context":"In "How to Guide"","block_context":{"text":"How to Guide","link":"https:\/\/www.amitbhawani.com\/blog\/category\/how-to\/"},"img":{"alt_text":"Linksys Router Setup","src":"https:\/\/i0.wp.com\/www.amitbhawani.com\/blog\/Images\/L\/Linksys-Router.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":13791,"url":"https:\/\/www.amitbhawani.com\/blog\/monitor-sql-queries\/","url_meta":{"origin":808,"position":2},"title":"Monitor SQL Queries with Real Time Server Charts","author":"Amit Bhawani","date":"September 4, 2010","format":false,"excerpt":"Once your website traffic increases one of the biggest concern would be the server load because if the hosting servers are down you would be loosing a lot of revenue and visitors. Hence you will have to always Monitor the SQL database and make sure that the queries are controlled\u2026","rel":"","context":"In "Software Reviews"","block_context":{"text":"Software Reviews","link":"https:\/\/www.amitbhawani.com\/blog\/category\/software\/"},"img":{"alt_text":"Database Management","src":"https:\/\/i0.wp.com\/www.amitbhawani.com\/blog\/wp-content\/uploads\/2010\/09\/Database-Management-150x150.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3056,"url":"https:\/\/www.amitbhawani.com\/blog\/proxy-sites-servers\/","url_meta":{"origin":808,"position":3},"title":"What are Proxy sites : Finding and using Proxy Servers","author":"Amit Bhawani","date":"January 16, 2009","format":false,"excerpt":"If you spend time on the web, you occasionally come across the term \u201cproxy\u201d. Perhaps you\u2019ve noticed that the administrator of your favorite website has rules against proxies. Or maybe you hear rumors about how proxies allow people to cheat while playing online games. Despite their unsavory reputation, proxies can\u2026","rel":"","context":"In "Tips & Tweaks"","block_context":{"text":"Tips & Tweaks","link":"https:\/\/www.amitbhawani.com\/blog\/category\/tips-tweaks\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.amitbhawani.com\/blog\/wp-content\/uploads\/2010\/12\/Proxy-Server-Sites.png?fit=512%2C301&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":16943,"url":"https:\/\/www.amitbhawani.com\/blog\/switch-bsnl-mobile-mobile-number-portability\/","url_meta":{"origin":808,"position":4},"title":"How to Switch to BSNL Mobile under Mobile Number Portability","author":"Neal","date":"November 24, 2010","format":false,"excerpt":"Last time we saw a general procedure on MNP, how to shift your number to a new operator. Now let\u2019s see how you can shift to BSNL Mobile Service. By a simple procedure which is given below you can shift from your existing operator to the BSNL Mobile. Procedure to\u2026","rel":"","context":"In "How to Guide"","block_context":{"text":"How to Guide","link":"https:\/\/www.amitbhawani.com\/blog\/category\/how-to\/"},"img":{"alt_text":"BSNL MNP LOGO","src":"https:\/\/i0.wp.com\/www.amitbhawani.com\/blog\/wp-content\/uploads\/2010\/11\/BSNL-MNP-LOGO.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":11169,"url":"https:\/\/www.amitbhawani.com\/blog\/best-4port-usb-hub\/","url_meta":{"origin":808,"position":5},"title":"Best 4-Port USB Hub for Laptops from Logitech","author":"Tony Stark","date":"May 26, 2010","format":false,"excerpt":"Premium 4-Port USB Hub for Notebooks - If you are looking for a USB adapter then it\u2019s ought to be Logitech once again. It\u2019s the Logitech Premium 4-Port USB Hub for Notebooks. It comes with four ports which lets you instantly connect up to four devices\u2014including thumb drives, cameras, and\u2026","rel":"","context":"In "Gadget Reviews"","block_context":{"text":"Gadget Reviews","link":"https:\/\/www.amitbhawani.com\/blog\/category\/gadget-news\/"},"img":{"alt_text":"Premium 4 Port USB Hub","src":"https:\/\/i0.wp.com\/www.amitbhawani.com\/blog\/wp-content\/uploads\/2010\/05\/Premium-4-Port-USB-Hub-150x150.png?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.amitbhawani.com\/blog\/wp-json\/wp\/v2\/posts\/808","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.amitbhawani.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.amitbhawani.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.amitbhawani.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.amitbhawani.com\/blog\/wp-json\/wp\/v2\/comments?post=808"}],"version-history":[{"count":0,"href":"https:\/\/www.amitbhawani.com\/blog\/wp-json\/wp\/v2\/posts\/808\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.amitbhawani.com\/blog\/wp-json\/wp\/v2\/media?parent=808"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.amitbhawani.com\/blog\/wp-json\/wp\/v2\/categories?post=808"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.amitbhawani.com\/blog\/wp-json\/wp\/v2\/tags?post=808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}