{"id":1822,"date":"2020-02-24T10:05:27","date_gmt":"2020-02-24T08:05:27","guid":{"rendered":"https:\/\/www.nav.ro\/blog\/?p=1822"},"modified":"2020-02-24T13:30:10","modified_gmt":"2020-02-24T11:30:10","slug":"40-de-comenzi-utile-pentru-serverul-linux","status":"publish","type":"post","link":"https:\/\/www.nav.ro\/blog\/40-de-comenzi-utile-pentru-serverul-linux\/","title":{"rendered":"40 de comenzi utile pentru serverul Linux"},"content":{"rendered":"\n<p>Cea mai mare parte a lumii virtuale este alimentat\u0103 ast\u0103zi de Linux. Administratorii \u0219i proprietarii de re\u021bele doresc s\u0103 preia controlul prezen\u021bei lor pe internet utiliz\u00e2nd Linux \u00een cea mai mare m\u0103sur\u0103. Dac\u0103 sunte\u021bi un utilizator Linux care \u00eencearc\u0103 s\u0103-\u0219i perfec\u021bioneze abilit\u0103\u021bile de administrare a sistemului la nivelul urm\u0103tor, afla\u021bi aceste 40 de comenzi ale serverului Linux men\u021bionate mai jos. Echipa noastr\u0103 de sysadmins a recomandat acest ghid pentru a v\u0103 facilita experien\u021ba de \u00eenv\u0103\u021bare. Majoritatea acestor comenzi sunt destul de de baz\u0103, dar dac\u0103 sunt folosite cu aten\u021bie, acestea v\u0103 vor ajuta s\u0103 gestiona\u021bi \u0219i s\u0103 monitoriza\u021bi serverele Linux mult mai eficient.<\/p>\n\n\n\n<p><strong>Comenzi de Linux simple, dar practice<\/strong><\/p>\n\n\n\n<p>Majoritatea comenzilor men\u021bionate \u00een acest ghid ar trebui s\u0103 fie familiare utilizatorilor cu experien\u021b\u0103, deoarece sunt de baz\u0103. Am prezentat de ce sunt importante pentru \u00eencep\u0103tori \u0219i cum pute\u021bi beneficia de aceste comenzi ale serverului. \u00cen plus, acest ghid va fi de asemenea util pentru sysadmins experimenta\u021bi care caut\u0103 referin\u021be practice cu privire la comenzile obi\u0219nuite ale serverului cu Linux.<\/p>\n\n\n\n<p><strong>Timpul de func\u021bionare<\/strong><\/p>\n\n\n\n<p>Comanda uptime este o comand\u0103 Linux foarte simpl\u0103 care ne spune timpul de func\u021bionare al sistemului nostru. Pute\u021bi utiliza aceast\u0103 comand\u0103 Linux pentru a v\u0103 autentifica pe serverele \u0219i pentru a vedea de c\u00e2t timp ruleaz\u0103 sistemul. \u00cen plus, comanda uptime afi\u0219eaz\u0103 \u0219i media de \u00eenc\u0103rcare a sistemului \u0219i num\u0103rul de utilizatori conecta\u021bi \u00een prezent.<\/p>\n\n\n\n<p><strong>1. uptime<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>uptime -p<\/p><\/blockquote>\n\n\n\n<p>Pute\u021bi utiliza unele argumente suplimentare pentru un  format diferit. Op\u021biunea -p indic\u0103 timpul de func\u021bionare al sistemului \u00eentr-un format u\u0219or de citit.<\/p>\n\n\n\n<p><strong>2. w<\/strong><\/p>\n\n\n\n<p>Comanda w este o alt\u0103 comand\u0103 util\u0103, dar practic\u0103 a serverului, care afi\u0219eaz\u0103 to\u021bi utilizatorii conecta\u021bi la un sistem \u0219i activit\u0103\u021bile lor. Administratorii pot folosi aceast\u0103 comand\u0103 pentru a vedea utilizatorii \u0219i procesele lor pe l\u00e2ng\u0103 media de \u00eenc\u0103rcare. Afi\u0219eaz\u0103, de asemenea, informa\u021bii cu privire la gazdele de la distan\u021b\u0103, ora de conectare, timpul de repaus, numele tty \u0219i a\u0219a mai departe.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>w<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>w &#8211;short<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>w &#8211;ip-addr<\/p><\/blockquote>\n\n\n\n<p>De asemenea, pute\u021bi utiliza argumente suplimentare, a\u0219a cum se arat\u0103 mai sus. Op\u021biunea &#8211;short sau -s afi\u0219eaz\u0103 o list\u0103 scurt\u0103 care omite ora procesului \u0219i informa\u021biile de conectare. Utiliza\u021bi &#8211;ip-addr sau -i pentru a imprima IP-ul gazdelor de la distan\u021b\u0103.<\/p>\n\n\n\n<p><strong>3. who<\/strong><\/p>\n\n\n\n<p>De asemenea, pute\u021bi utiliza comanda \u201ewho\u201d pentru a afi\u0219a informa\u021bii despre utilizatorii de la distan\u021b\u0103. Spre deosebire de w, who nu arat\u0103 tot ce fac utilizatorii. Cu toate acestea, who permite o mul\u021bime de op\u021biuni suplimentare care ne permit s\u0103 ob\u021binem mai multe informa\u021bii f\u0103r\u0103 efort.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>who<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>who -b<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>who -d<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>who &#8211;ips<\/p><\/blockquote>\n\n\n\n<p>Pur \u0219i simplu executarea comenzii who ne ofer\u0103 numele utilizatorilor al\u0103turi de nume \u0219i ora. Folosi\u021bi op\u021biunea -b sau \u2013boot pentru a imprima c\u00e2nd a fost pornit sistemul, -d sau \u2013dead pentru a afi\u0219a procesele moarte \u0219i \u2013ips pentru a imprima IP-ul gazdelor de la distan\u021b\u0103 \u00een loc de numele lor de utilizator.<\/p>\n\n\n\n<p><strong>4. Users<\/strong><\/p>\n\n\n\n<p>Users este una dintre cele mai simple comenzi ale serverului pentru a imprima doar numele de utilizator de la distan\u021b\u0103. Aceasta este una dintre cele mai simple comenzi Linux pentru \u00eencep\u0103tori \u0219i nu are aproape nicio op\u021biune suplimentar\u0103.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>users<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>users -version<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>users -help<\/p><\/blockquote>\n\n\n\n<p>Op\u021biunile \u2013version \u0219i \u2013help sunt singurele op\u021biuni pe care le pute\u021bi utiliza.<\/p>\n\n\n\n<p><strong>5. whoami<\/strong><\/p>\n\n\n\n<p>Comanda whoami este foarte similar\u0103 cu comanda users. Aceasta este una dintre cele mai populare comenzi Linux \u00een r\u00e2ndul \u00eencep\u0103torilor \u0219i v\u0103 spune cine ca v-a\u021bi autentificat. \u00cen esen\u021b\u0103, este doar tip\u0103rirea ID-ului utilizator eficient.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>whoami<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>whoami &#8211;version<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>whoami &#8211;help<\/p><\/blockquote>\n\n\n\n<p>Ca \u0219i \u00een cazul users, whoami accept\u0103 doar cele dou\u0103 op\u021biuni de mai sus ca argument.<\/p>\n\n\n\n<p><strong>6. less<\/strong><\/p>\n\n\n\n<p>Comanda less este o alt\u0103 comand\u0103 simpl\u0103, dar extrem de robust\u0103 pentru sysadminii Linux. Este una dintre cele mai versatile comenzi Linux din arsenalul administratorilor experimenta\u021bi datorit\u0103 cantit\u0103\u021bii sale pure de func\u021bii. Obiectivul principal al utiliz\u0103rii mai pu\u021bin este de a vizualiza rapid fi\u0219ierele \u0219i de a le parcurge folosind urc\u0103ri \u0219i cobor\u00e2ri ale paginilor.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>less \/var\/log\/custom.log<\/p><\/blockquote>\n\n\n\n<p>Deoarece less accept\u0103 o varietate de op\u021biuni \u0219i formate, v\u0103 suger\u0103m s\u0103 vede\u021bi manualul \u0219i paginile de ajutor pentru a \u00een\u021belege mai detaliat aceast\u0103 comand\u0103.<\/p>\n\n\n\n<p><strong>7. more<\/strong><\/p>\n\n\n\n<p>Comanda more v\u0103 permite, de asemenea, s\u0103 derula\u021bi rapid fi\u0219iere masive. Pute\u021bi utiliza aceast\u0103 comand\u0103 pentru a vizualiza con\u021binutul unui fi\u0219ier. De\u0219i more ofer\u0103 c\u00e2teva op\u021biuni utile pentru linia de comand\u0103, nu este la fel de puternic\u0103 ca less.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>more \/var\/log\/custom.log<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>more &#8211;help<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man more<\/p><\/blockquote>\n\n\n\n<p>Pute\u021bi consulta pagina de ajutor pentru a g\u0103si rapid toate op\u021biunile disponibile. Verifica\u021bi manualul dac\u0103 dori\u021bi informa\u021bii detaliate despre aceast\u0103 comand\u0103.<\/p>\n\n\n\n<p><strong>8. tail<\/strong><\/p>\n\n\n\n<p>Comanda tail este una dintre cele mai utile instrumente pentru depanarea prin fi\u0219iere jurnal foarte rapid. Aceast\u0103 comand\u0103 Linux afi\u0219eaz\u0103 pur \u0219i simplu ultimele por\u021biuni ale unui fi\u0219ier, care sunt mai susceptibile s\u0103 con\u021bin\u0103 erorile \u00een cazul fi\u0219ierelor de jurnal. Dac\u0103 sunte\u021bi un sysadmin \u00een c\u0103utarea depan\u0103rii rapide, tail poate fi foarte util\u0103.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>tail \/var\/log\/custom.log<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>tail -f \/var\/log\/custom.log<\/p><\/blockquote>\n\n\n\n<p>Ad\u0103ugarea op\u021biunii -f permite administratorilor s\u0103 \u00ee\u0219i urmeze jurnalele a\u0219a cum sunt scrise. Consulta\u021bi pagina de manual pentru o privire de ansamblu detaliat\u0103 a comenzii tail.<\/p>\n\n\n\n<p><strong>9. curl<\/strong><\/p>\n\n\n\n<p>Utilitatea curl este una dintre cele mai puternice comenzi ale serverului Linux pentru transferul fi\u0219ierelor prin web. Este un software utilizat pe scar\u0103 larg\u0103 pentru administratorii de re\u021bea datorit\u0103 multitudinii sale de func\u021bii simple, dar utile. Comanda curl poate lua multe argumente op\u021bionale care \u00eei permit s\u0103 \u00eendeplineasc\u0103 sarcini foarte complexe.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>curl example.com\/file.txt<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>curl example.com\/file[1-100 Alan.txt<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>curl &#8211;help<\/p><\/blockquote>\n\n\n\n<p>\u00centruc\u00e2t comenzile curl sunt foarte versatile, este imposibil s\u0103 le discut\u0103m \u00een acest ghid. V\u0103 rug\u0103m s\u0103 consulta\u021bi pagina de manual despre comenzile curl Linux.<\/p>\n\n\n\n<p><strong>10. wget<\/strong><\/p>\n\n\n\n<p>Pachetul wget este utilizat pe scar\u0103 larg\u0103 pentru preluarea fi\u0219ierelor de pe web \u0219i este unul dintre cele dou\u0103 instrumente pentru desc\u0103rcarea fi\u0219ierelor pe Linux. Dac\u0103 sunte\u021bi un administrator al serverului care dore\u0219te s\u0103 accentueze abilit\u0103\u021bile Linux, \u00eenv\u0103\u021barea acestei comenzi este o necesitate.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>wget example.com\/file.txt<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>wget -c example.com\/file.txt<\/p><\/blockquote>\n\n\n\n<p>Deoarece wget ofer\u0103 o mul\u021bime de op\u021biuni suplimentare pentru linia de comand\u0103, ar trebui s\u0103 consulta\u021bi mai \u00eent\u00e2i pagina lor de manual pentru a \u00een\u021belege func\u021bionarea op\u021biunilor disponibile.<\/p>\n\n\n\n<p><strong>11. scp<\/strong><\/p>\n\n\n\n<p>Comanda scp este folosit\u0103 pentru transferul fi\u0219ierelor \u00eentre gazdele Linux de la distan\u021b\u0103 \u00een siguran\u021b\u0103. Este o copie securizat\u0103 \u0219i permite administratorilor s\u0103 partajeze fi\u0219iere \u00eentre diferite gazde dintr-o re\u021bea foarte u\u0219or. \u00cen plus, scp permite unele caracteristici conving\u0103toare, cum ar fi posibilitatea de a gestiona accesul ssh, folosind cifre sigure \u0219i a\u0219a mai departe.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>scp user@remote_host:file.txt \/local\/documents\/<\/p><\/blockquote>\n\n\n\n<p>Aceast\u0103 comand\u0103 descarc\u0103 fi\u0219ierul text de la gazda de la distan\u021b\u0103 pe ma\u0219ina local\u0103. Pute\u021bi utiliza, de asemenea, scp pentru a copia fi\u0219iere de la ma\u0219ina local\u0103 \u00een gazdele de la distan\u021b\u0103 \u0219i de la o gazd\u0103 de la distan\u021b\u0103 la mai multe ma\u0219ini de la distan\u021b\u0103.<\/p>\n\n\n\n<p><strong>12. rsync<\/strong><\/p>\n\n\n\n<p>Rsync este un alt utilitar excep\u021bional pentru transferul fi\u0219ierelor de la distan\u021b\u0103. Este un \u00eenlocuitor modern pentru instrumentul rcp \u0219i permite administratorilor s\u0103 sincronizeze fi\u0219ierele u\u0219or \u00eentre surs\u0103 \u0219i destina\u021bii. Instrumentul rsync este extrem de rapid \u0219i flexibil, ceea ce \u00eel face o alegere ideal\u0103 pentru administratorii serverului.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>rsync -t * .html new-server:public_html\/<\/p><\/blockquote>\n\n\n\n<p>Aceast\u0103 comand\u0103 transfer\u0103 toate fi\u0219ierele HTML de la ma\u0219ina local\u0103 la gazda de la distan\u021b\u0103 numit\u0103 new-server. V\u0103 rug\u0103m s\u0103 consulta\u021bi pagina principal\u0103 a rsync pentru a afla toate op\u021biunile disponibile oferite de acest instrument.<\/p>\n\n\n\n<p><strong>13. sftp<\/strong><\/p>\n\n\n\n<p>Ar trebui s\u0103 fi\u021bi deja familiariza\u021bi cu comanda ftp. Permite administratorilor s\u0103 transfere fi\u0219iere folosind protocolul FTP. Comanda sftp este o actualizare a comenzii ftp, care faciliteaz\u0103 transferurile fi\u0219ierelor prin conexiunea shell sigur\u0103.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>sftp admin@xx.xx.xx.xx<\/p><\/blockquote>\n\n\n\n<p>Comanda sftp ofer\u0103 o consol\u0103 interactiv\u0103 pentru a transfera fi\u0219ierele \u00een siguran\u021b\u0103. Pur \u0219i simplu introduce\u021bi un semn de \u00eentrebare (?) \u00een aceast\u0103 consol\u0103 pentru a vizualiza toate op\u021biunile disponibile. V\u0103 recomand\u0103m, de asemenea, s\u0103 verifica\u021bi manualul lor pentru o \u00een\u021belegere detaliat\u0103 a comenzii sftp.<\/p>\n\n\n\n<p><strong>14. ssh<\/strong><\/p>\n\n\n\n<p>Comanda ssh \u00een Linux permite administratorilor s\u0103 gestioneze gazdele de la distan\u021b\u0103 prin protocolul shell sigur. Este, f\u0103r\u0103 nicio \u00eendoial\u0103, una dintre cele mai utilizate comenzi de server Linux. Ca administrator de server, sunte\u021bi obligat s\u0103 fi\u021bi pricepu\u021bi cu comanda ssh.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ssh user@host<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man ssh<\/p><\/blockquote>\n\n\n\n<p>Deoarece comanda ssh expune o mul\u021bime de argumente suplimentare, este mai bine s\u0103 consulta\u021bi manualul \u00eenainte de a \u00eencepe s\u0103 utiliza\u021bi aceast\u0103 comand\u0103.<\/p>\n\n\n\n<p><strong>15. ping<\/strong><\/p>\n\n\n\n<p>Comanda ping este o comand\u0103 simpl\u0103, dar extrem de util\u0103 pentru administratorii de re\u021bea. Permite administratorilor s\u0103 testeze cu u\u0219urin\u021b\u0103 conexiunea \u00eentre ma\u0219inile locale \u0219i cele de la distan\u021b\u0103 dintr-o re\u021bea. De\u0219i ping-ul este foarte simplu de utilizat, de multe ori poate economisi timp pre\u021bios \u00een timpul depan\u0103rii re\u021belei.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ping google.com<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ping yoursite.com<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ping -c 3 exemplu.com<\/p><\/blockquote>\n\n\n\n<p>Pute\u021bi utiliza ping pentru a testa conexiunile IPv4 \u0219i IPv6. Consulta\u021bi pagina de manual pentru a descoperi toate op\u021biunile din linia de comand\u0103 disponibile pentru comanda ping.<\/p>\n\n\n\n<p><strong>16. whois<\/strong><\/p>\n\n\n\n<p>Comanda whois permite administratorilor Linux s\u0103 caute con\u021binut \u00een bazele de date WHOIS disponibile publicului. Este adesea utilizat pentru a g\u0103si informa\u021bii sensibile despre o gazd\u0103 de la distan\u021b\u0103. Pute\u021bi ob\u021bine cu u\u0219urin\u021b\u0103 informa\u021bii valoroase cu privire la numele de domeniu \u0219i IP-uri folosind comanda whois.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>whois google.com<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man whois<\/p><\/blockquote>\n\n\n\n<p>Deoarece whois afi\u0219eaz\u0103 o cantitate foarte mare de informa\u021bii, de obicei, administratorii filtreaz\u0103 informa\u021biile folosind instrumente precum grep. \u00cen general, whois este o comand\u0103 versatil\u0103 util\u0103 pentru administratorii serverului datorit\u0103 cazurilor sale de utilizare practic\u0103.<\/p>\n\n\n\n<p><strong>17. dig<\/strong><\/p>\n\n\n\n<p>Comanda dig ofer\u0103 func\u021bionalit\u0103\u021bi similare comenzii whois. Pute\u021bi s\u0103 o utiliza\u021bi pentru a g\u0103si informa\u021bii specifice unui domeniu. De fapt, numele dig este reprezentat de Domain Information Groper.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>dig exemplu.com<\/p><\/blockquote>\n\n\n\n<p>Ve\u021bi ob\u021bine informa\u021bii utile, cum ar fi adresa IP, timpul de interogare \u0219i codurile de eroare atunci c\u00e2nd executa\u021bi aceast\u0103 comand\u0103.<\/p>\n\n\n\n<p><strong>18. nslookup<\/strong><\/p>\n\n\n\n<p>Aceast\u0103 comand\u0103 poate fi folosit\u0103 pentru interogarea serverelor DNS \u0219i pentru a ob\u021bine informa\u021bii esen\u021biale cu privire la serverele de la distan\u021b\u0103. Administratorii serverului Linux folosesc adesea comanda nslookup pentru a ob\u021bine informa\u021bii specifice gazdei de la serverele de nume de domeniu (DNS). Arunca\u021bi o privire la comanda de mai jos pentru a afla cum func\u021bioneaz\u0103.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>nslookup google.com<\/p><\/blockquote>\n\n\n\n<p>De\u0219i pare a fi foarte simplu, nslookup este una dintre comenzile cele mai utilizate pentru mul\u021bi admini. Mai mult, nslookup permite administratorilor s\u0103 utilizeze instrumentul \u00eentr-un mod interactiv.<\/p>\n\n\n\n<p><strong>19. netstat<\/strong><\/p>\n\n\n\n<p>Comanda netstat este un instrument Linux conving\u0103tor care permite administratorilor s\u0103 vizualizeze toate conexiunile TCP active, st\u0103rile de socket, tabelele de rutare \u0219i multe altele. Dac\u0103 sunte\u021bi un administrator de server responsabil pentru \u00eentre\u021binerea infrastructurii IT la scar\u0103 larg\u0103, comanda netstat poate fi extrem de util\u0103.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>netstat<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>netstat -l<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>netstat -a | more<\/p><\/blockquote>\n\n\n\n<p>Deoarece netstat ofer\u0103 multe op\u021biuni \u0219i argumente utile, este mai bine s\u0103 consulta\u021bi manualul \u00eenainte de a \u00eencepe s\u0103 utiliza\u021bi acest instrument.<\/p>\n\n\n\n<p><strong>20. traceroute<\/strong><\/p>\n\n\n\n<p>Comanda traceroute din Linux ne permite s\u0103 afi\u0219\u0103m rutele pe care le parcurg pachetele \u00eenainte de a ajunge la o destina\u021bie de la distan\u021b\u0103. Aceasta este o comand\u0103 util\u0103, ceea ce faciliteaz\u0103 determinarea defectelor de rutare \u0219i a firewall-urilor de proiectare.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>traceroute google.com<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>traceroute exemplu.com<\/p><\/blockquote>\n\n\n\n<p>Aceasta este o comand\u0103 Linux mo\u0219tenit\u0103 pentru verificarea eficient\u0103 a hopurilor \u0219i a distan\u021belor din re\u021bea.<\/p>\n\n\n\n<p><strong>21. tcpdump<\/strong><\/p>\n\n\n\n<p>Comanda tcpdump este cu siguran\u021b\u0103 una dintre cele mai utile comenzi de server Linux pentru depanarea re\u021belei. Este un instrument de re\u021bea superb care afi\u0219eaz\u0103 pachetele TCP\/IP transmise \u0219i primite de sistemul dumneavoastr\u0103. De asemenea, este extrem de important din punct de vedere al securit\u0103\u021bii.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>tcpdump<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>tcpdump -c 15<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>tcpdump &#8211;help<\/p><\/blockquote>\n\n\n\n<p>\u00cen mod implicit, tcpdump surprinde pachetele \u00een mod continuu. \u00cei pute\u021bi spune s\u0103 capteze doar un anumit num\u0103r de pachete folosind op\u021biunea -c. Are multe alte op\u021biuni pentru a permite administratorilor s\u0103 efectueze o varietate de sarcini.<\/p>\n\n\n\n<p><strong>22. ifconfig<\/strong><\/p>\n\n\n\n<p>Instrumentul ifconfig este un instrument utilizat pe scar\u0103 larg\u0103 pentru \u201econfigurarea interfe\u021bei de re\u021bea\u201d. Acesta permite administratorilor s\u0103 vizualizeze interfe\u021bele de re\u021bea \u0219i s\u0103 atribuie, adauge, \u0219terge sau controleze parametrii interfe\u021bei. Deoarece configurarea interfe\u021belor de re\u021bea este un lucru important pentru administratorii serverului, aceasta este o comand\u0103 esen\u021bial\u0103 pentru personalul IT.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ifconfig<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ifconfig | grep inet<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man ifconfig<\/p><\/blockquote>\n\n\n\n<p>Comanda ifconfig ofer\u0103 mai multe op\u021biuni de utilizare, imposibil de discutat \u00een acest ghid. V\u0103 rug\u0103m s\u0103 consulta\u021bi manualul pentru comenzile ifconfig din Linux dac\u0103 sunte\u021bi interesat s\u0103 afla\u021bi mai multe.<\/p>\n\n\n\n<p><strong>23. iwconfig<\/strong><\/p>\n\n\n\n<p>Comanda iwconfig este foarte asem\u0103n\u0103toare cu ifconfig, cu excep\u021bia faptului c\u0103 este doar pentru configurarea interfe\u021belor wireless. Administratorii Linux pot utiliza acest instrument pentru gestionarea \u0219i controlul parametrilor interfe\u021bei wireless, cum ar fi SSID, rata de transmitere, modul \u0219i a\u0219a mai departe.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>iwconfig<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>iwconfig &#8211;help<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man iwconfig<\/p><\/blockquote>\n\n\n\n<p>Verifica\u021bi pagina de ajutor pentru a ob\u021bine un rezumat al tuturor op\u021biunilor disponibile. Pagina de manual v\u0103 va ajuta s\u0103 \u00een\u021belege\u021bi mai detaliat aceste op\u021biuni.<\/p>\n\n\n\n<p><strong>24. iptables<\/strong><\/p>\n\n\n\n<p>Utilitatea iptables este una dintre cele mai puternice comenzi de server Linux pentru administratorii de re\u021bea. Le permite s\u0103 restric\u021bioneze sau s\u0103 blocheze IP-urile \u0219i este utilizat pentru a proteja serverele \u00eempotriva diverselor atacuri r\u0103u inten\u021bionate. Utilitatea iptables are nevoie de o discu\u021bie \u00een profunzime, care este cu mult peste scopul acestui ghid. A\u0219adar, suger\u0103m cititorilor s\u0103 consulte pagina de manual iptables.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>iptables -L<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>iptables &#8211;help<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man iptables<\/p><\/blockquote>\n\n\n\n<p>Prima comand\u0103 va afi\u0219a toate regulile active \u00een prezent. Pute\u021bi consulta \u0219i pagina de ajutor sau manualul pentru o privire de ansamblu detaliat\u0103 a iptables.<\/p>\n\n\n\n<p><strong>25. sestatus<\/strong><\/p>\n\n\n\n<p>Comanda sestatus ne permite s\u0103 vizualiz\u0103m starea noastr\u0103 SELinux direct din linia de comand\u0103. Este o comand\u0103 simpl\u0103, dar util\u0103, util\u0103 pentru a verifica dac\u0103 serverul dvs. este protejat corect de SELinux sau nu.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>sestatus<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man sestatus<\/p><\/blockquote>\n\n\n\n<p>Administratorii din re\u021bea pot g\u0103si cu u\u0219urin\u021b\u0103 informa\u021bii esen\u021biale despre SELinux, cum ar fi modul curent, punctul de montaj SELinuxfs, numele politicii active \u0219i a\u0219a mai departe.<\/p>\n\n\n\n<p><strong>26. sendmail<\/strong><\/p>\n\n\n\n<p>Software-ul sendmail este utilizat pe scar\u0103 larg\u0103 pentru livrarea de e-mailuri c\u0103tre \u0219i de la ma\u0219inile de la distan\u021b\u0103. Pute\u021bi trimite cu u\u0219urin\u021b\u0103 e-mailuri de pe terminalul dvs. utiliz\u00e2nd aceast\u0103 comand\u0103 de server util\u0103. Administratorii pot verifica, de asemenea, dac\u0103 comunica\u021biile lor de e-mail func\u021bioneaz\u0103 a\u0219a cum inten\u021bioneaz\u0103 sau nu folosind sendmail.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>echo &#8222;Subiect: Nou&#8221; | sendmail alias@exemplu.com &lt; mail.txt<\/p><\/blockquote>\n\n\n\n<p>Aceast\u0103 comand\u0103 va trimite con\u021binutul fi\u0219ierului mail.txt la adresa specificat\u0103.<\/p>\n\n\n\n<p><strong>27. mailstats<\/strong><\/p>\n\n\n\n<p>Comanda mailstats este utilizat\u0103 pentru afi\u0219area statisticilor de e-mail pentru serverele de e-mail Linux. Administratorii pot ob\u021bine cu u\u0219urin\u021b\u0103 o privire de ansamblu rapid\u0103 a comunica\u021biilor prin e-mail folosind aceast\u0103 simpl\u0103 comand\u0103 de terminal. Exemplele de mai jos demonstreaz\u0103 func\u021bionarea acestei comenzi.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>mailstats -p<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>mailstats -f FILE<\/p><\/blockquote>\n\n\n\n<p>Aceast\u0103 comand\u0103 func\u021bioneaz\u0103 folosind \u00een mod implicit modulul de statistic\u0103 sendmail. Pute\u021bi \u00eenlocui acest lucru \u0219i specifica\u021bi datele personalizate folosind indicatorul -f, a\u0219a cum se arat\u0103 \u00een a doua comand\u0103.<\/p>\n\n\n\n<p><strong>28. ip<\/strong><\/p>\n\n\n\n<p>Comanda ip este, probabil, una dintre cele mai utile comenzi server Linux pentru sysadmini. Ofer\u0103 un mod conving\u0103tor de a gestiona dispozitivele de re\u021bea, tunelurile, rutarea \u0219i multe altele. Mai mult, comanda ip expune o mul\u021bime de sub-comenzi care vizeaz\u0103 abordarea diferitelor probleme de re\u021bea.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ip addr<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ip link<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ip addr add 192.168.1.XXX\/24 dev eth0<\/p><\/blockquote>\n\n\n\n<p>Prima comand\u0103 afi\u0219eaz\u0103 adresele IP active, iar cea de-a doua arat\u0103 interfe\u021bele de re\u021bea. Ultima comand\u0103 este utilizat\u0103 pentru ad\u0103ugarea IP-urilor la interfe\u021be specifice.<\/p>\n\n\n\n<p><strong>29. nload<\/strong><\/p>\n\n\n\n<p>Programul nload este un software Linux simplu \u0219i u\u0219or de utilizat, care permite administratorilor s\u0103 monitorizeze traficul de re\u021bea care intr\u0103 \u0219i iese pe serverele lor. Ne place foarte mult aceast\u0103 comand\u0103 datorit\u0103 caracteristicilor sale excelente de vizualizare, care ofer\u0103 o informa\u021bie esen\u021bial\u0103 asupra utiliz\u0103rii serverului \u00een timp real.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>nload<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>nload devices wlp1s0<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>nload &#8211;help<\/p><\/blockquote>\n\n\n\n<p>Pur \u0219i simplu rularea nload ofer\u0103 informa\u021bii despre trafic pentru toate interfe\u021bele de re\u021bea disponibile. A doua comand\u0103 restr\u00e2nge acest lucru numai la interfe\u021bele wireless.<\/p>\n\n\n\n<p><strong>30. dstat<\/strong><\/p>\n\n\n\n<p>Utilitatea dstat este un alt instrument excelent pentru linia de comand\u0103 pentru monitorizarea performan\u021bei serverelor Linux. Permite administratorilor s\u0103 vizualizeze cu u\u0219urin\u021b\u0103 starea serverului, utiliz\u0103rile \u0219i alte informa\u021bii legate de resurse. Este dezvoltat ca o \u00eenlocuire modern\u0103 a instrumentelor vmstat, netstat \u0219i ifstat.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>dstat<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>dstat -c &#8211;top-cpu &#8211;top-mem<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>dstat &#8211;help<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man dstat<\/p><\/blockquote>\n\n\n\n<p>\u00cen general, comanda dstat poate fi cu adev\u0103rat benefic\u0103 pentru administratorii care gestioneaz\u0103 infrastructuri IT \u0219i servere Linux la scar\u0103 larg\u0103.<\/p>\n\n\n\n<p><strong>31. dhclient<\/strong><\/p>\n\n\n\n<p>Comanda dhclient invoc\u0103 clientul Dynamic Host Configuration Protocol (DHCP) \u0219i permite administratorilor s\u0103 monitorizeze adresa IP, subre\u021beaua, gateway-ul \u0219i alte informa\u021bii legate de serverul DNS. Ar trebui s\u0103 cunoa\u0219te\u021bi aceast\u0103 comand\u0103 dac\u0103 \u00eentre\u021bine\u021bi servere la scar\u0103 larg\u0103.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>dhclient eth0<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man dhclient<\/p><\/blockquote>\n\n\n\n<p>Acest instrument permite, de asemenea, administratorilor s\u0103 elibereze IP-urile alocate \u00een momentul de fa\u021b\u0103 unei interfe\u021be \u0219i s\u0103 ob\u021bin\u0103 altele noi. Consulta\u021bi pagina principal\u0103 a dhclient pentru a afla cum func\u021bioneaz\u0103 aceast\u0103 comand\u0103 mai detaliat.<\/p>\n\n\n\n<p><strong>32. ss<\/strong><\/p>\n\n\n\n<p>Utilitarul ss furnizeaz\u0103 statistici socket \u0219i permite administratorilor s\u0103 \u00ee\u0219i monitorizeze mai precis traficul pe server. Administratorii folosesc de obicei aceast\u0103 comand\u0103 Linux pentru a ob\u021bine o vizualizare detaliat\u0103 a statisticilor re\u021belei lor. A\u0219adar, poate fi o op\u021biune excelent\u0103 pentru administratorii re\u021belei care caut\u0103 instrumente adecvate de dumping.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ss<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ss-l<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ss-p<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ss &#8211;help<\/p><\/blockquote>\n\n\n\n<p>Comanda ss ofer\u0103 multe op\u021biuni suplimentare care \u00eei permit s\u0103 efectueze sarcini avansate. Pute\u021bi consulta pagina de ajutor pentru a g\u0103si un rezumat al tuturor op\u021biunilor disponibile. V\u0103 rug\u0103m s\u0103 consulta\u021bi manualul dac\u0103 dori\u021bi explica\u021bii suplimentare.<\/p>\n\n\n\n<p><strong>33. mtr<\/strong><\/p>\n\n\n\n<p>Utilitarul mtr combin\u0103 caracteristicile comenzii ping \u0219i ale comenzii traceroute \u00eentr-un singur program. Este una dintre cele mai utilizate comenzi pentru serverul Linux pentru investigarea conexiunilor de pachete \u0219i, prin urmare, ar trebui s\u0103 fii familiar cu mtr.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>mtr<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>mtr &#8211;report<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man mtr<\/p><\/blockquote>\n\n\n\n<p>Op\u021biunea &#8211;report se opre\u0219te automat dup\u0103 analizarea a zece pachete \u0219i creeaz\u0103 un raport pe baza analizei sale. \u00cen plus, mtr expune multe alte op\u021biuni suplimentare pentru abordarea diferitelor tipuri de opera\u021bii. Pagina de manual ofer\u0103 o discu\u021bie aprofundat\u0103 cu privire la aceste op\u021biuni.<\/p>\n\n\n\n<p><strong>34. free<\/strong><\/p>\n\n\n\n<p>Comanda free ofer\u0103 un mod simplu, dar util de verificare a memoriei disponibile \u0219i ocupate a serverului dumneavoastr\u0103 Linux. Este un instrument conving\u0103tor pentru admini, deoarece analiza spa\u021biului de memorie este esen\u021bial\u0103 pentru \u00eentre\u021binerea serverului.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>free<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>free -m<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man free<\/p><\/blockquote>\n\n\n\n<p>Comanda free este foarte versatil\u0103 \u0219i ofer\u0103 o serie de op\u021biuni suplimentare. Pute\u021bi utiliza aceste op\u021biuni pentru a forma ie\u0219irea de utilizare a memoriei, dup\u0103 cum este necesar. Arunca\u021bi o privire la pagina de manual pentru o privire de ansamblu detaliat\u0103.<\/p>\n\n\n\n<p><strong>35. df<\/strong><\/p>\n\n\n\n<p>Comanda df este instrumentul Linux pentru monitorizarea informa\u021biilor despre spa\u021biul discului. Este o comand\u0103 obi\u0219nuit\u0103 care furnizeaz\u0103 informa\u021bii sensibile cu privire la utilizarea memoriei. Comanda df poate fi folosit\u0103 \u00eentr-o varietate de situa\u021bii, astfel \u00eenc\u00e2t este greu de discutat despre toate \u00eentr-un singur paragraf.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>df -a<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>df -h<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>df -T<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man df<\/p><\/blockquote>\n\n\n\n<p>Am acoperit deja \u00een detaliu comanda df Linux \u0219i suger\u0103m cititorilor s\u0103 verifice pagina de manual dac\u0103 caut\u0103 o introducere \u00een profunzime.<\/p>\n\n\n\n<p><strong>36. htop<\/strong><\/p>\n\n\n\n<p>Utilitarul htop este un instrument fascinant pentru monitorizarea f\u0103r\u0103 efort a procesului de utilizare a serverului dumneavoastr\u0103 Linux. Este o actualizare modern\u0103 pentru programul vechi, top. Mai mult dec\u00e2t at\u00e2t, htop este simplu de utilizat, astfel \u00eenc\u00e2t chiar \u0219i administratorii noi pot folosi acest instrument.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>htop<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>htop &#8211;help<\/p><\/blockquote>\n\n\n\n<p>Pute\u021bi g\u0103si cu u\u0219urin\u021b\u0103 toate procesele de sistem care ruleaz\u0103 \u00een prezent \u0219i utilizarea procesorului prin aceast\u0103 comand\u0103 Linux. Arunca\u021bi o privire la pagina de ajutor pentru un rezumat al tuturor op\u021biunilor disponibile oferite de htop.<\/p>\n\n\n\n<p><strong>37. ps<\/strong><\/p>\n\n\n\n<p>Comanda ps afi\u0219eaz\u0103 informa\u021bii despre procesele sistemului \u0219i poate fi extrem de benefic\u0103 atunci c\u00e2nd depana\u021bi problemele serverului. Este o alt\u0103 comand\u0103 versatil\u0103 care are o importan\u021b\u0103 semnificativ\u0103 \u00een \u00eentre\u021binerea infrastructurilor IT mari \u0219i a serverelor Linux.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ps<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ps -ef<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>ps -eM<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man ps<\/p><\/blockquote>\n\n\n\n<p>Comanda ps este una dintre comenzile noastre favorite ale terminalului Linux datorit\u0103 utiliz\u0103rii sale simple, dar practice. \u00cencuraj\u0103m cititorii s\u0103 verifice pagina de manual pentru a ob\u021bine o imagine de ansamblu detaliat\u0103.<\/p>\n\n\n\n<p><strong>38. env<\/strong><\/p>\n\n\n\n<p>Configurarea variabilelor de mediu este o sarcin\u0103 sensibil\u0103, iar administratorii serverului trebuie s\u0103 se asigure c\u0103 au f\u0103cut-o corect. Comanda env permite administratorilor s\u0103 verifice variabilele de mediu active \u0219i s\u0103 ruleze programe \u00eentr-un mediu de sistem modificat. A\u0219adar, aceasta este o comand\u0103 util\u0103 pentru aproape fiecare sistem de operare Linux.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>env<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>env &#8211;help<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man env<\/p><\/blockquote>\n\n\n\n<p>Comanda env accept\u0103, de asemenea, mai multe op\u021biuni de linie de comand\u0103, cum ar fi comenzile de terminal Linux tradi\u021bionale. Vizualiza\u021bi pagina de ajutor pentru a ob\u021bine informa\u021bii sumare despre aceste op\u021biuni sau pentru o privire de ansamblu detaliat\u0103.<\/p>\n\n\n\n<p><strong>39. chmod<\/strong><\/p>\n\n\n\n<p>Permisiunile sistemului de fi\u0219iere Linux joac\u0103 un rol extrem de important \u00een spatele securit\u0103\u021bii serverelor web Linux. Am abordat deja acest subiect \u00een detaliu \u00eentr-un ghid anterior. Aici, vrem s\u0103 includem comanda chmod, care este una dintre comenzile esen\u021biale ale serverului Linux pe care un sysadmin ar trebui s\u0103 le cunoasc\u0103.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>chmod 755 test.file<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>chmod &#8211;help<\/p><\/blockquote>\n\n\n\n<p>Comanda chmod este destul de avansat\u0103, este greu s\u0103 vorbim despre cum func\u021bioneaz\u0103 aici. V\u0103 rug\u0103m s\u0103 consulta\u021bi pagina de manual pentru a ob\u021bine mai multe informa\u021bii despre utilizare.<\/p>\n\n\n\n<p><strong>40. lsof<\/strong><\/p>\n\n\n\n<p>Comanda lsof este utilizat\u0103 pentru afi\u0219area tuturor fi\u0219ierelor deschise \u00een paralel cu procesele care le-au deschis. Este o comand\u0103 Linux utilizat\u0103 pe scar\u0103 larg\u0103 \u0219i poate fi util\u0103 \u00eentr-o serie de scenarii, cum ar fi depanarea.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>lsof<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>lsof &#8211;help<\/p><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>man lsof<\/p><\/blockquote>\n\n\n\n<p>Comanda lsof ofer\u0103 numeroase op\u021biuni suplimentare de linie de comand\u0103. Pute\u021bi ob\u021bine o vizualizare rapid\u0103 a tuturor op\u021biunilor disponibile din pagina de manual.<\/p>\n\n\n\n<p>Comenzile serverului Linux cuprind o mare varietate de comenzi pentru gestionarea, monitorizarea l\u0103\u021bimii de band\u0103, \u00eentre\u021binerea resurselor \u0219.a. Se preconizeaz\u0103 c\u0103 un administrator de server cunoa\u0219te o multitudine de comenzi, inclusiv multe men\u021bionate \u00een acest articol. Deoarece acoperirea tuturor comenzilor legate de server \u00eentr-un singur articol este imposibil\u0103, articolul nostru con\u021bine 40 de dintre cele mai utilizate astfel de comenzi. Aceste comenzi pot fi benefice at\u00e2t pentru administratorii Linux, c\u00e2t \u0219i pentru cei f\u0103r\u0103 experien\u021b\u0103. Sper\u0103m s\u0103 v\u0103 oferim informa\u021biile pe care le-a\u021bi c\u0103utat \u00een acest articol.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cea mai mare parte a lumii virtuale este alimentat\u0103 ast\u0103zi de Linux. Administratorii \u0219i proprietarii de re\u021bele doresc s\u0103 preia controlul prezen\u021bei lor pe internet utiliz\u00e2nd Linux \u00een cea mai mare m\u0103sur\u0103. Dac\u0103 sunte\u021bi un utilizator Linux care \u00eencearc\u0103 s\u0103-\u0219i perfec\u021bioneze abilit\u0103\u021bile de administrare a sistemului la nivelul urm\u0103tor, afla\u021bi aceste 40 de comenzi ale<\/p>\n","protected":false},"author":1,"featured_media":1823,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,148],"tags":[207],"class_list":["post-1822","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-how-to","category-servere","tag-comenzi-linux"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>40 de comenzi utile pentru serverul Linux - NAV.RO Blog<\/title>\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\/40-de-comenzi-utile-pentru-serverul-linux\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"40 de comenzi utile pentru serverul Linux - NAV.RO Blog\" \/>\n<meta property=\"og:description\" content=\"Cea mai mare parte a lumii virtuale este alimentat\u0103 ast\u0103zi de Linux. 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