{"id":4241,"date":"2026-04-03T14:21:11","date_gmt":"2026-04-03T11:21:11","guid":{"rendered":"https:\/\/www.nav.ro\/blog\/?p=4241"},"modified":"2026-04-03T14:21:11","modified_gmt":"2026-04-03T11:21:11","slug":"configurarea-retelei-in-linux-ghid-complet-pentru-incepatori-si-intermediari","status":"publish","type":"post","link":"https:\/\/www.nav.ro\/blog\/configurarea-retelei-in-linux-ghid-complet-pentru-incepatori-si-intermediari\/","title":{"rendered":"Configurarea re\u021belei \u00een Linux \u2013 Ghid complet pentru \u00eencep\u0103tori \u0219i intermediari"},"content":{"rendered":"\n<p>Configurarea re\u021belei \u00een Linux este o abilitate esen\u021bial\u0103 pentru orice utilizator, fie c\u0103 administrezi un server, lucrezi \u00een IT sau pur \u0219i simplu vrei s\u0103 \u00een\u021belegi mai bine cum func\u021bioneaz\u0103 sistemul t\u0103u. \u00cen acest articol, vei \u00eenv\u0103\u021ba conceptele de baz\u0103, dar \u0219i metodele practice de configurare a re\u021belei \u00een distribu\u021biile Linux moderne.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. No\u021biuni de baz\u0103 despre re\u021bea \u00een Linux<\/h2>\n\n\n\n<p>\u00cen Linux, fiecare interfa\u021b\u0103 de re\u021bea (plac\u0103 de re\u021bea fizic\u0103 sau virtual\u0103) este reprezentat\u0103 printr-un nume precum:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>eth0<\/code>, <code>eth1<\/code> (mai vechi)<\/li>\n\n\n\n<li><code>ens33<\/code>, <code>enp0s3<\/code> (sisteme moderne)<\/li>\n\n\n\n<li><code>wlan0<\/code> (Wi-Fi)<\/li>\n<\/ul>\n\n\n\n<p>Fiecare interfa\u021b\u0103 poate avea:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>adres\u0103 IP<\/li>\n\n\n\n<li>masc\u0103 de re\u021bea<\/li>\n\n\n\n<li>gateway<\/li>\n\n\n\n<li>DNS<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">2. Verificarea configura\u021biei re\u021belei<\/h2>\n\n\n\n<p>Pentru a vedea configura\u021bia actual\u0103, folose\u0219te:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">ip a<\/pre>\n\n\n\n<p>sau<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">ifconfig<\/pre>\n\n\n\n<p>(\u26a0\ufe0f <code>ifconfig<\/code> este depreciat pe multe distribu\u021bii moderne)<\/p>\n\n\n\n<p>Pentru a verifica gateway-ul:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">ip route<\/pre>\n\n\n\n<p>Pentru DNS:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">cat \/etc\/resolv.conf<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">3. Configurarea IP-ului static<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Metoda 1: folosind comanda <code>ip<\/code><\/h3>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">sudo ip addr add 192.168.1.100\/24 dev eth0\nsudo ip route add default via 192.168.1.1<\/pre>\n\n\n\n<p>Aceast\u0103 metod\u0103 este temporar\u0103 (se pierde la reboot).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Metoda 2: configurare permanent\u0103 (Ubuntu \/ Debian)<\/h3>\n\n\n\n<p>Editeaz\u0103 fi\u0219ierul Netplan:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">sudo nano \/etc\/netplan\/01-netcfg.yaml<\/pre>\n\n\n\n<p>Exemplu:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">network:\n  version: 2\n  ethernets:\n    eth0:\n      dhcp4: no\n      addresses:\n        - 192.168.1.100\/24\n      gateway4: 192.168.1.1\n      nameservers:\n        addresses: [8.8.8.8, 8.8.4.4]<\/pre>\n\n\n\n<p>Aplic\u0103 configura\u021bia:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">sudo netplan apply<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">4. Configurarea prin DHCP<\/h2>\n\n\n\n<p>Pentru a ob\u021bine automat IP:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">network:\n  version: 2\n  ethernets:\n    eth0:\n      dhcp4: yes<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">5. Configurarea re\u021belei pe CentOS \/ RHEL<\/h2>\n\n\n\n<p>Editeaz\u0103 fi\u0219ierul:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/etc\/sysconfig\/network-scripts\/ifcfg-eth0<\/pre>\n\n\n\n<p>Exemplu:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">BOOTPROTO=none\nIPADDR=192.168.1.100\nNETMASK=255.255.255.0\nGATEWAY=192.168.1.1\nDNS1=8.8.8.8\nONBOOT=yes<\/pre>\n\n\n\n<p>Reporne\u0219te re\u021beaua:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">sudo systemctl restart network<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">6. Configurarea Wi-Fi<\/h2>\n\n\n\n<p>Pentru Wi-Fi, po\u021bi folosi:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">nmcli dev wifi list<\/pre>\n\n\n\n<p>Conectare:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">nmcli dev wifi connect \"NumeRetea\" password \"Parola\"<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">7. Testarea conexiunii<\/h2>\n\n\n\n<p>Dup\u0103 configurare, testeaz\u0103:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">ping 8.8.8.8<\/pre>\n\n\n\n<p>sau<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">ping google.com<\/pre>\n\n\n\n<p>Dac\u0103 IP-ul merge, dar domeniul nu, problema este DNS.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">8. Restart re\u021bea<\/h2>\n\n\n\n<p>\u00cen func\u021bie de distribu\u021bie:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">sudo systemctl restart NetworkManager<\/pre>\n\n\n\n<p>sau:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">sudo systemctl restart networking<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">9. Probleme frecvente \u0219i solu\u021bii<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c Nu ai conexiune la internet<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Verific\u0103 cablul sau Wi-Fi-ul<\/li>\n\n\n\n<li>Verific\u0103 IP-ul (<code>ip a<\/code>)<\/li>\n\n\n\n<li>Verific\u0103 gateway-ul (<code>ip route<\/code>)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c DNS nu func\u021bioneaz\u0103<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Editeaz\u0103 <code>\/etc\/resolv.conf<\/code><\/li>\n\n\n\n<li>Adaug\u0103:<code>nameserver 8.8.8.8<\/code><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c Configura\u021bia nu persist\u0103<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Verific\u0103 fi\u0219ierul Netplan sau NetworkManager<\/li>\n\n\n\n<li>Ruleaz\u0103 <code>netplan apply<\/code><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Concluzie<\/h2>\n\n\n\n<p>Configurarea re\u021belei \u00een Linux poate p\u0103rea complicat\u0103 la \u00eenceput, dar devine rapid intuitiv\u0103 odat\u0103 ce \u00een\u021belegi conceptele de baz\u0103. Indiferent dac\u0103 folose\u0219ti IP static sau DHCP, instrumentele moderne precum Netplan \u0219i NetworkManager simplific\u0103 mult procesul.<\/p>\n\n\n\n<p>Dac\u0103 lucrezi \u00een domeniul IT sau administrare servere, st\u0103p\u00e2nirea acestor configur\u0103ri \u00ee\u021bi va fi extrem de util\u0103 \u00een situa\u021bii reale.<\/p>\n\n\n\n<p>\ud83d\udca1 <em>Tip<\/em>: Experimenteaz\u0103 \u00eentr-o ma\u0219in\u0103 virtual\u0103 pentru a evita probleme pe sistemul principal.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Configurarea re\u021belei \u00een Linux este o abilitate esen\u021bial\u0103 pentru orice utilizator, fie c\u0103 administrezi un server, lucrezi \u00een IT sau pur \u0219i simplu vrei s\u0103 \u00een\u021belegi mai bine cum func\u021bioneaz\u0103 sistemul t\u0103u. \u00cen acest articol, vei \u00eenv\u0103\u021ba conceptele de baz\u0103, dar \u0219i metodele practice de configurare a re\u021belei \u00een distribu\u021biile Linux moderne. 1. No\u021biuni de<\/p>\n","protected":false},"author":1,"featured_media":4244,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[176,130,363,7],"class_list":["post-4241","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-how-to","tag-linux","tag-network","tag-server","tag-vps"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Configurarea re\u021belei \u00een Linux \u2013 Ghid complet pentru \u00eencep\u0103tori \u0219i intermediari - NAV.RO Blog<\/title>\n<meta name=\"description\" content=\"Configurarea re\u021belei \u00een Linux este o abilitate esen\u021bial\u0103 pentru orice utilizator, fie c\u0103 administrezi un server, lucrezi \u00een IT sau\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.nav.ro\/blog\/configurarea-retelei-in-linux-ghid-complet-pentru-incepatori-si-intermediari\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Configurarea re\u021belei \u00een Linux \u2013 Ghid complet pentru \u00eencep\u0103tori \u0219i intermediari - 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