{"id":38282,"date":"2016-01-14T16:17:28","date_gmt":"2016-01-14T22:17:28","guid":{"rendered":"http:\/\/blog.cpanel.com\/?p=38282"},"modified":"2016-01-14T16:17:28","modified_gmt":"2016-01-14T22:17:28","slug":"the-importance-of-using-protection-the-ins-and-outs-of-firewalls","status":"publish","type":"post","link":"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/","title":{"rendered":"The Importance of Using Protection | The Ins and Outs of Firewalls"},"content":{"rendered":"

We do a lot of posts on server protection because honestly \u2014 it\u2019s pretty important. This time around we wanted to highlight and breakdown one of the most common tools used to protect your machine: the firewall. In this tips and tricks, we\u2019ll go over what is a firewall, how it works, and why there\u2019s no excuse to not be using one.<\/p>\n

 <\/p>\n

What is a firewall?\u00a0<\/b><\/span><\/p>\n

Divided into network-based\u00a0 or host-based, a firewall is a system of protocols and scripts that monitor, scan and protect a network from potentially malicious or hazardous traffic. Essentially, it acts as the gatekeeper for your server or network, permitting and blocking traffic based on a predetermined set of criteria called \u201crules\u201d.\u00a0<\/span><\/p>\n

A firewall can be installed on an individual server or can function as a stand-alone piece of hardware, known as a perimeter firewall.\u00a0<\/span><\/p>\n

 <\/p>\n

How does a firewall work?\u00a0<\/b><\/span><\/p>\n

Internet traffic is transmitted in a series of data packets that travel out from one location (a source IP) toward a final location\u00a0 <\/span>(destination IP). If the destination IP is on a firewall protected network, the firewall will inspect the packets to verify whether or not it is allowed to enter the network. Then through a process called filtering, where the machine reads the rules defined by the source IP, destination IP, and the packet itself, the packet will either be \u201cdropped\u201d or \u201caccepted\u201d into the network.\u00a0<\/span><\/p>\n

To illustrate this better, we\u2019ll use a cPanel technical support request as an example. To do our job, our team often has to send information to, or completely enter, a client\u2019s server when resolving an issue. (Depending on the level of access permitted, a server can be completely taken over from a remote machine; an occurrence which, while beneficial for our work, can be hazardous if it were a malicious attacker.)\u00a0 <\/span>When a firewall allows packets from our source IP, 208.74.121.106, then our Technical Support staff will be able to access the server behind that firewall. This access, however, works in both directions and can be used to control access from either source to destination and vice versa.<\/span><\/p>\n

Why use a firewall?\u00a0<\/b><\/span><\/p>\n

1. Block individual or ranges of IP addresses
\n2. Allow computers in a private network to access the internet
\n3. To prevent internal users accessing remote sites
\n4. Limit access only to services running on the server
\n5. Help to prevent denial of service attacks<\/p>\n

Learn more about firewalls and how to configure them for your cPanel & WHM<\/a> services on our Documentation Site.<\/p>\n","protected":false},"excerpt":{"rendered":"

We do a lot of posts on server protection because honestly \u2014 it\u2019s pretty important. This time around we wanted to highlight and breakdown one of the most common tools used to protect your machine: the firewall. In this tips and tricks, we\u2019ll go over what is a firewall, how it works, and why there\u2019s […]<\/p>\n","protected":false},"author":77,"featured_media":64469,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[61],"tags":[89,1369,1373,201],"class_list":["post-38282","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips-and-tricks","tag-cpanel","tag-firewalls","tag-ip-address","tag-whm"],"acf":[],"yoast_head":"\nThe Importance of Using Protection | The Ins and Outs of Firewalls | cPanel<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=_-2465.html \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Importance of Using Protection | The Ins and Outs of Firewalls | cPanel\" \/>\n<meta property=\"og:description\" content=\"We do a lot of posts on server protection because honestly \u2014 it\u2019s pretty important. This time around we wanted to highlight and breakdown one of the most common tools used to protect your machine: the firewall. In this tips and tricks, we\u2019ll go over what is a firewall, how it works, and why there\u2019s […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/\" \/>\n<meta property=\"og:site_name\" content=\"cPanel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/cpanel\/\" \/>\n<meta property=\"article:published_time\" content=\"2016-01-14T22:17:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/devel.www.cpanel.net\/wp-content\/uploads\/2016\/01\/frwall.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"475\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"cPanel Community\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@cPanel\" \/>\n<meta name=\"twitter:site\" content=\"@cPanel\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"cPanel Community\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/\",\"url\":\"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/\",\"name\":\"The Importance of Using Protection | The Ins and Outs of Firewalls | cPanel\",\"isPartOf\":{\"@id\":\"https:\/\/devel.www.cpanel.net\/#website\"},\"datePublished\":\"2016-01-14T22:17:28+00:00\",\"dateModified\":\"2016-01-14T22:17:28+00:00\",\"author\":{\"@id\":\"https:\/\/devel.www.cpanel.net\/#\/schema\/person\/8cf97408aad4fb70cf55d11a1d4f57f8\"},\"breadcrumb\":{\"@id\":\"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/devel.www.cpanel.net\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"The Importance of Using Protection | The Ins and Outs of Firewalls\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/devel.www.cpanel.net\/#website\",\"url\":\"https:\/\/devel.www.cpanel.net\/\",\"name\":\"cPanel\",\"description\":\"Hosting Platform of Choices\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/devel.www.cpanel.net\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/devel.www.cpanel.net\/#\/schema\/person\/8cf97408aad4fb70cf55d11a1d4f57f8\",\"name\":\"cPanel Community\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/devel.www.cpanel.net\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/e1949945083b5526bb95711bd3d616b3?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/e1949945083b5526bb95711bd3d616b3?s=96&d=mm&r=g\",\"caption\":\"cPanel Community\"},\"description\":\"The web hosting industry's most reliable management solution since 1997. With our first-class support and rich feature set, it's easy to see why our customers and partners make cPanel & WHM their hosting platform of choice. For more information, visit cPanel.net.\",\"sameAs\":[\"https:\/\/cpanel.net\"],\"url\":\"https:\/\/devel.www.cpanel.net\/blog\/author\/cpadmin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"The Importance of Using Protection | The Ins and Outs of Firewalls | cPanel","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/","og_locale":"en_US","og_type":"article","og_title":"The Importance of Using Protection | The Ins and Outs of Firewalls | cPanel","og_description":"We do a lot of posts on server protection because honestly \u2014 it\u2019s pretty important. This time around we wanted to highlight and breakdown one of the most common tools used to protect your machine: the firewall. In this tips and tricks, we\u2019ll go over what is a firewall, how it works, and why there\u2019s […]","og_url":"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/","og_site_name":"cPanel","article_publisher":"https:\/\/www.facebook.com\/cpanel\/","article_published_time":"2016-01-14T22:17:28+00:00","og_image":[{"width":1200,"height":475,"url":"https:\/\/devel.www.cpanel.net\/wp-content\/uploads\/2016\/01\/frwall.png","type":"image\/png"}],"author":"cPanel Community","twitter_card":"summary_large_image","twitter_creator":"@cPanel","twitter_site":"@cPanel","twitter_misc":{"Written by":"cPanel Community","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/","url":"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/","name":"The Importance of Using Protection | The Ins and Outs of Firewalls | cPanel","isPartOf":{"@id":"https:\/\/devel.www.cpanel.net\/#website"},"datePublished":"2016-01-14T22:17:28+00:00","dateModified":"2016-01-14T22:17:28+00:00","author":{"@id":"https:\/\/devel.www.cpanel.net\/#\/schema\/person\/8cf97408aad4fb70cf55d11a1d4f57f8"},"breadcrumb":{"@id":"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/devel.www.cpanel.net\/blog\/tips-and-tricks\/the-importance-of-using-protection-the-ins-and-outs-of-firewalls\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/devel.www.cpanel.net\/"},{"@type":"ListItem","position":2,"name":"The Importance of Using Protection | The Ins and Outs of Firewalls"}]},{"@type":"WebSite","@id":"https:\/\/devel.www.cpanel.net\/#website","url":"https:\/\/devel.www.cpanel.net\/","name":"cPanel","description":"Hosting Platform of Choices","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/devel.www.cpanel.net\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/devel.www.cpanel.net\/#\/schema\/person\/8cf97408aad4fb70cf55d11a1d4f57f8","name":"cPanel Community","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/devel.www.cpanel.net\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/e1949945083b5526bb95711bd3d616b3?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/e1949945083b5526bb95711bd3d616b3?s=96&d=mm&r=g","caption":"cPanel Community"},"description":"The web hosting industry's most reliable management solution since 1997. With our first-class support and rich feature set, it's easy to see why our customers and partners make cPanel & WHM their hosting platform of choice. For more information, visit cPanel.net.","sameAs":["https:\/\/cpanel.net"],"url":"https:\/\/devel.www.cpanel.net\/blog\/author\/cpadmin\/"}]}},"_links":{"self":[{"href":"https:\/\/devel.www.cpanel.net\/wp-json\/wp\/v2\/posts\/38282"}],"collection":[{"href":"https:\/\/devel.www.cpanel.net\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devel.www.cpanel.net\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devel.www.cpanel.net\/wp-json\/wp\/v2\/users\/77"}],"replies":[{"embeddable":true,"href":"https:\/\/devel.www.cpanel.net\/wp-json\/wp\/v2\/comments?post=38282"}],"version-history":[{"count":0,"href":"https:\/\/devel.www.cpanel.net\/wp-json\/wp\/v2\/posts\/38282\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devel.www.cpanel.net\/wp-json\/wp\/v2\/media\/64469"}],"wp:attachment":[{"href":"https:\/\/devel.www.cpanel.net\/wp-json\/wp\/v2\/media?parent=38282"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devel.www.cpanel.net\/wp-json\/wp\/v2\/categories?post=38282"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devel.www.cpanel.net\/wp-json\/wp\/v2\/tags?post=38282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}