{"id":4130,"date":"2020-03-06T19:29:45","date_gmt":"2020-03-06T17:29:45","guid":{"rendered":"https:\/\/www.one-it.ro\/blog\/?p=4130"},"modified":"2020-03-06T19:29:45","modified_gmt":"2020-03-06T17:29:45","slug":"firewall-urile-o-necesitate-pentru-protejarea-datelor-companiei-tale","status":"publish","type":"post","link":"https:\/\/www.one-it.ro\/blog\/firewall-urile-o-necesitate-pentru-protejarea-datelor-companiei-tale\/","title":{"rendered":"Firewall-urile: o necesitate pentru protejarea datelor companiei tale"},"content":{"rendered":"\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-right kksr-valign-top\"\n    data-payload='{&quot;align&quot;:&quot;right&quot;,&quot;id&quot;:&quot;4130&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;4&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 votes)&quot;,&quot;size&quot;:&quot;12&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 12px; height: 12px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 12px; height: 12px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 12px; height: 12px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 12px; height: 12px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 12px; height: 12px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 12px; height: 12px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 12px; height: 12px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 12px; height: 12px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 12px; height: 12px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 12px; height: 12px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 9.6px;\">\n            <span class=\"kksr-muted\">Rate this post<\/span>\n    <\/div>\n    <\/div>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-4133\" src=\"https:\/\/www.one-it.ro\/blog\/wp-content\/uploads\/2020\/03\/Firewall-companii-1.jpg\" alt=\"firewall\" width=\"750\" height=\"450\" \/>Fiecare companie \u00eencearc\u0103 s\u0103 \u00ee\u0219i p\u0103streze datele sensibile \u00een siguran\u021b\u0103. Una dintre provoc\u0103rile pe care le \u00eent\u00e2mpin\u0103 este g\u0103sirea instrumentelor\/dispozitivelor potrivite pentru asta. <!--more-->Chiar \u0219i pentru un dispozitiv comun, cum ar fi un firewall, este posibil ca multe companii s\u0103 nu \u0219tie cum s\u0103 aleag\u0103 firewall-ul potrivit cerin\u021belor lor specifice, cum s\u0103 organizeze aceste firewall-uri sau uneori, nu con\u0219tientizeaz\u0103 de ce sunt importante.<\/p>\n<p><strong>Ce este un firewall?<\/strong><\/p>\n<p><strong>Firewall-ul este un tip de instrument de securitate cibernetic\u0103, utilizat pentru a m\u0103sura traficul \u00eentr-o re\u021bea.<\/strong> Firewall-urile &#8211; care pot fi software, hardware sau chiar bazate pe cloud &#8211; pot fi utilizate pentru a separa nodurile de re\u021bea de surse de trafic externe, surse de trafic interne sau chiar aplica\u021bii. <strong>Obiectivul cheie al unui firewall este de a restric\u021biona cererile de trafic \u201er\u0103uvoitor\u201d \u0219i pachetele de date, accept\u00e2nd \u00een acela\u0219i timp traficul autentic.<\/strong><\/p>\n<p>Exist\u0103 <strong>8 tipuri de firewall<\/strong>:<\/p>\n<ol>\n<li>Firewall-uri de filtrare a pachetelor IP (Packet-filtering firewalls)<\/li>\n<li>Gateway-uri la nivel de circuit (Circuit-level gateways)<\/li>\n<li>Firewall-uri de inspec\u021bie de stat (Stateful inspection firewalls)<\/li>\n<li>Gateway-uri la nivel de aplica\u021bie (Application-level gateways \u2013 de exemplu, firewall-uri proxy)<\/li>\n<li>Firewall-uri de ultim\u0103 genera\u021bie (Next-gen firewalls)<\/li>\n<li>Firewall-uri software (Software firewalls)<\/li>\n<li>Firewall-uri hardware (Hardware firewalls)<\/li>\n<li>Firewall-uri cloud (Cloud firewalls)<\/li>\n<\/ol>\n<p>Cum func\u021bioneaz\u0103 aceste firewall-uri? \u0218i care este cel mai bun pentru securitatea cibernetic\u0103 de care compania ta are nevoie?<\/p>\n<ol>\n<li><strong>Firewall-uri de filtrare a pachetelor IP <\/strong><\/li>\n<\/ol>\n<p>Aceste firewall-uri care sunt cele mai de baz\u0103, care genereaz\u0103 un punct de control la un router de trafic sau un switch. Filtrarea pachetelor este un instrument \u0219i o tehnic\u0103 de baz\u0103 a securit\u0103\u021bii re\u021belei. Este un instrument pentru c\u0103 ajut\u0103 la finalizarea unei sarcini, dar \u0219i o tehnic\u0103 deoarece este o metod\u0103 de completare a unei sarcini. Filtrarea pachetelor este de obicei ieftin de implementat, dar trebuie realizat c\u0103 un dispozitiv de filtrare a pachetelor nu ofer\u0103 acela\u0219i nivel de securitate precum o aplica\u021bie sau un firewall proxy. Partea pozitiv\u0103 la acest tip de firewall este faptul c\u0103 nu este foarte concentrat pe resurse, adic\u0103 nu influen\u021beaz\u0103 \u00een mod semnificativ performan\u021ba sistemului \u0219i este relativ simplu. Cu toate acestea, firewall-urile de filtrare a pachetelor sunt mai u\u0219or de trecut peste, \u00een raport cu firewall-urile cu abilit\u0103\u021bi de inspec\u021bie mult mai puternice.<\/p>\n<ol start=\"2\">\n<li><strong>Gateway-uri la nivel de circuit<\/strong><\/li>\n<\/ol>\n<p>Acestea sunt destinate s\u0103 accepte rapid sau s\u0103 restric\u021bioneze traficul f\u0103r\u0103 s\u0103 consume multe resurse ale calculatorului. Gateway-urile la nivel de circuit func\u021bioneaz\u0103 prin confirmarea \u201estr\u00e2ngerii de m\u00e2n\u0103\u201d a set\u0103rilor TCP (Transmission Control Protocol). Aceast\u0103 verificare a \u201estr\u00e2ngerii de m\u00e2n\u0103\u201d este destinat\u0103 s\u0103 asigure autenticitatea sesiunii de la care vine pachetul de date.<\/p>\n<p>Cu toate c\u0103 sunt extrem de eficiente \u00een privin\u021ba consumului de resurse, aceste firewall-uri nu verific\u0103 efectiv pachetul de date. Prin urmare, dac\u0103 un pachet con\u021bine un malware, dar are \u201estr\u00e2ngere de m\u00e2n\u0103\u201d TCP corect\u0103, trece direct de firewall. Tocmai de aceea, aceste gateway-uri nu sunt suficiente pentru a proteja afacerea.<\/p>\n<ol start=\"3\">\n<li><strong>Firewall-uri de inspec\u021bie de stat <\/strong><\/li>\n<\/ol>\n<p>Un firewall de inspec\u021bie de stat urm\u0103re\u0219te starea de lucru \u0219i caracteristicile conexiunilor de re\u021bea care \u00eel navigheaz\u0103. Firewall-ul este configurat pentru a diferen\u021bia pachetele legitime de re\u021bea pentru diferite tipuri de conexiuni. Aceste firewall-uri consum\u0103 mai multe resurse, ceea ce duce la \u00eencetinirea transferului pachetelor autentice \u00een compara\u021bie cu celelalte solu\u021bii.<\/p>\n<ol start=\"4\">\n<li><strong>Gateway-uri la nivel de aplica\u021bie <\/strong><\/li>\n<\/ol>\n<p>Aceste firewall-uri func\u021bioneaz\u0103 \u00een cadrul aplica\u021biei pentru setarea traficului intern \u00eentre re\u021beaua ta \u0219i sursa de trafic. \u00cen loc s\u0103 permit\u0103 conectarea direct\u0103 a traficului, firewall-ul proxy stabile\u0219te mai \u00eent\u00e2i un link c\u0103tre sursa traficului \u0219i examineaz\u0103 pachetul de date primite. <strong>Acestea sunt cele mai sigure tipuri de firewall, dar viteza \u0219i func\u021bionalitatea sunt foarte compromise, deoarece pot restric\u021biona aplica\u021biile pe care le poate suporta re\u021beaua. <\/strong>Cu toate acestea, exist\u0103 o singur\u0103 problem\u0103 \u00een ceea ce prive\u0219te firewall-urile proxy: <strong>acestea pot \u00eencetini substan\u021bial performan\u021ba<\/strong>, \u00een urma etapelor suplimentare din procesul de transfer de pachete de date.<\/p>\n<ol start=\"5\">\n<li><strong>Firewall-uri de ultim\u0103 genera\u021bie<\/strong><\/li>\n<\/ol>\n<p>Majoritatea produselor de firewall recent lansate sunt prezentate ca fiind de \u201eultim\u0103 genera\u021bie\u201d, dar nu exist\u0103 o certitudine clar\u0103 cu privire la ceea ce face un firewall s\u0103 fie cu adev\u0103rat de ultim\u0103 genera\u021bie.<\/p>\n<p>Unele dintre cele mai populare caracteristici ale arhitecturii firewall-ului de ultim\u0103 genera\u021bie includ inspec\u021bia profund\u0103 a pachetelor, verific\u0103ri ale procesului de \u201estr\u00e2ngere de m\u00e2n\u0103\u201d a \u00a0TCP \u0219i revizuirea pachetelor de suprafa\u021b\u0103. Aceste firewall-uri pot con\u021bine \u0219i alte tehnologii, cum ar fi sistemele de prevenire a intruziunilor (IPS), care func\u021bioneaz\u0103 pentru a stopa mecanic atacurile \u00eempotriva re\u021belei tale. Problema este c\u0103 nu exist\u0103 o defini\u021bie clar\u0103 a unui firewall de ultim\u0103 genera\u021bie, deci este important ca \u00eenainte de a investi \u00eentr-unul, s\u0103 confirm\u0103m ce capacit\u0103\u021bi reale are.<\/p>\n<ol start=\"6\">\n<li><strong>Firewall-uri software<\/strong><\/li>\n<\/ol>\n<p>Acestea includ orice tip de firewall instalat pe un dispozitiv local \u0219i nu o component\u0103 anume. Marele avantaj al unui firewall software este c\u0103 acela c\u0103 genereaz\u0103 un nivel de ap\u0103rare \u00een profunzime, prin separarea punctelor finale ale re\u021belei. Cu toate acestea, men\u021binerea individual\u0103 a firewall-urilor software pe diverse dispozitive poate fi problematic\u0103 \u0219i consumatoare de timp.<\/p>\n<ol start=\"7\">\n<li><strong>Firewall-uri hardware<\/strong><\/li>\n<\/ol>\n<p>Aceste firewall-uri folosesc un dispozitiv fizic, care serve\u0219te \u00eentr-un mod similar unui router de trafic, pentru a \u00eentrerupe pachetele de date \u0219i solicit\u0103rile de trafic \u00eenainte de a fi conectate la serverele re\u021belei. Firewall-urile bazate pe dispozitive fizice (firewall-urile hardware), exceleaz\u0103 la securitatea, \u00eentrerup\u00e2nd traficul mali\u021bios din afara re\u021belei, \u00eenainte ca punctele finale ale re\u021belei s\u0103 fie extrem de vulnerabile.<\/p>\n<p>Problema principal\u0103 a acestui firewall bazat pe hardware este c\u0103 de multe ori, este u\u0219or pentru atacurile din interior s\u0103 le ocoleasc\u0103. \u00cen plus, capabilit\u0103\u021bile reale ale unui firewall de tip hardware sunt diferite, \u00een func\u021bie de produc\u0103tor.<\/p>\n<ol start=\"8\">\n<li><strong> Firewall-uri cloud <\/strong><\/li>\n<\/ol>\n<p>Aceste tipuri de firewall sunt dispozitive de re\u021bea implementate \u00een cloud, av\u00e2nd rolul de a opri sau a reduce accesul nedorit la re\u021belele private. Ca o tehnologie nou\u0103, firewall-urile cloud sunt destinate nevoilor contemporane ale businessurilor \u0219i se reg\u0103sesc \u00een mediile de aplica\u021bii online. Avantajul major de a avea firewall-uri bazate pe cloud este c\u0103 sunt foarte u\u0219or de adaptat la compania ta. Pe baza nevoilor tale \u00een cre\u0219tere, se poate ad\u0103uga o capacitate suplimentar\u0103 serverului cloud pentru a reduce sarcinile mai mari de trafic. La fel ca firewall-urile hardware, firewall-urile cloud exceleaz\u0103 la securitatea perimetrului.<\/p>\n<p>Mai sus, sunt relatate \u0219i descrise o serie de tipuri de firewall-uri structurate pe arhitectura Internetului, pentru a r\u0103spunde nevoilor de securitate \u0219i performan\u021b\u0103 ale aplica\u021biilor cu mai multe niveluri. O ideea ce trebuie re\u021binut\u0103 e faptul c\u0103 oric\u00e2t de puternic este, doar un singur strat de protec\u021bie nu va fi suficient pentru a-\u021bi proteja businessul. Alege \u00een func\u021bie de nevoile companiei tale, acel tip de firewall, care diminueaz\u0103 riscul de acces nedorit la datele sensibile ale companiei. Ai \u00een vedere solu\u021bii suplimentare, care s\u0103 \u00eent\u0103reasc\u0103 firewall-ul ales, pentru a asigura un grad superior de securizare a informa\u021biilor \u0219i accesului neautorizat la acestea.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fiecare companie \u00eencearc\u0103 s\u0103 \u00ee\u0219i p\u0103streze datele sensibile \u00een siguran\u021b\u0103. Una dintre provoc\u0103rile pe care le \u00eent\u00e2mpin\u0103 este g\u0103sirea instrumentelor\/dispozitivelor potrivite pentru asta.<\/p>\n","protected":false},"author":4,"featured_media":4131,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[5,202,16],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Firewall-urile: o necesitate pentru protejarea datelor companiei tale - One-IT blog<\/title>\n<meta name=\"description\" content=\"Fiecare companie \u00eencearc\u0103 s\u0103 \u00ee\u0219i p\u0103streze datele sensibile \u00een siguran\u021b\u0103. 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