{"id":28,"date":"2019-07-02T13:55:09","date_gmt":"2019-07-02T13:55:09","guid":{"rendered":"https:\/\/silviamarin.ro\/?p=20"},"modified":"2019-07-02T13:55:09","modified_gmt":"2019-07-02T13:55:09","slug":"acces-openssh-2","status":"publish","type":"post","link":"https:\/\/marinelvis.xyz\/index.php\/2019\/07\/02\/acces-openssh-2\/","title":{"rendered":"ACCES OPENSSH"},"content":{"rendered":"<p>Se editeaza fisierul <em>\/etc\/ssh\/sshd_config<\/em><\/p>\n<pre>nano \/etc\/ssh\/sshd_config<\/pre>\n<p>Se modifica linia<\/p>\n<blockquote><p><em>PermitRootLogin without-password<\/em><\/p><\/blockquote>\n<p>in<\/p>\n<blockquote><p><em>PermitRootLogin yes<\/em><\/p><\/blockquote>\n<p>Se salveaza si se paraseste nano cu Ctrl+O apoi Ctrl+X<br \/>\nSe reporneste OpenSSH<\/p>\n<pre>systemctl restart ssh.service<\/pre>\n<p><em><strong>Conectare cu chei criptate<\/strong><\/em><br \/>\nSe lanseaza PuTTY Key Generator. In partea de jos a ferestrei se modifica dimensiunea cheii de la 2048 la 4096 biti. <strong>Pe Raspbian OS se utilizeaza cheie de tip ED25519. <\/strong>Click pe <em>&#8222;Generate&#8221;<\/em>. In timpul generarii cheii publice se misca cursorul mouse-ului in spatiul de sub bara de progres.<br \/>\nCheia publica generata se copiaza si se pastreaza in clipboard.<br \/>\nSe salveaza cheia privata si se introduce passphrase de doua ori. Cheia privata se denumeste dupa dispozitivul de pe care se va face conectarea.<br \/>\nSe deschide o sesiune PuTTY si se seteaza locatia unde este salvata cheia privata la<em> SSH -&gt; Auth<\/em><br \/>\nSe salveaza sesiunea apoi se face conectarea cu user si parola.<br \/>\nIn folderul<em> &#8222;home&#8221;<\/em> al userului se creeaza folderul <em>&#8222;.ssh&#8221;<\/em> si fisierul <em>&#8222;authorized_keys&#8221;<\/em> unde va fi stocata cheia publica.<\/p>\n<pre>mkdir -p ~\/.ssh &amp;&amp; touch ~\/.ssh\/authorized_keys\nchmod 700 ~\/.ssh &amp;&amp; chmod 600 ~\/.ssh\/authorized_keys<\/pre>\n<p>Se deschide fisierul<em> &#8222;authorised_keys&#8221;<\/em> si se introduce cheia publica din clipboard.<\/p>\n<pre>nano .ssh\/authorized_keys<\/pre>\n<p>Apoi Ctrl+o apoi Ctrl+x.<br \/>\nSe iese din sesiune si se deschide din nou sesiunea salvata anterior in PuTTY. De data asta conectarea se va face cu cheia criptata si se va solicita introducerea passphrase.<br \/>\nPentru fiecare dispozitiv cu care se face conectarea se repeta procesul<br \/>\nIn <em>\/etc\/ssh\/sshd_config\u00a0<\/em>se elimina accesul cu parola si accesul utilizatorului root apoi se activeaza accesul cu cheie\u00a0 criptata:<\/p>\n<blockquote><p><em># PermitRootLogin yes<\/em><br \/>\n<em>PubkeyAuthentication yes<\/em><br \/>\n<em>PasswordAuthentication no<\/em><\/p><\/blockquote>\n<p>apoi se reporneste serviciul:<\/p>\n<pre>sudo systemctl restart sshd<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Se editeaza fisierul \/etc\/ssh\/sshd_config nano \/etc\/ssh\/sshd_config Se modifica linia PermitRootLogin without-password in PermitRootLogin yes Se salveaza si se paraseste nano cu Ctrl+O apoi Ctrl+X Se reporneste OpenSSH systemctl restart ssh.service Conectare cu chei criptate Se lanseaza PuTTY Key Generator. In partea de jos a ferestrei se modifica dimensiunea cheii de la 2048 la 4096 biti. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-28","post","type-post","status-publish","format-standard","hentry","category-fara-categorie"],"_links":{"self":[{"href":"https:\/\/marinelvis.xyz\/index.php\/wp-json\/wp\/v2\/posts\/28","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/marinelvis.xyz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/marinelvis.xyz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/marinelvis.xyz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/marinelvis.xyz\/index.php\/wp-json\/wp\/v2\/comments?post=28"}],"version-history":[{"count":0,"href":"https:\/\/marinelvis.xyz\/index.php\/wp-json\/wp\/v2\/posts\/28\/revisions"}],"wp:attachment":[{"href":"https:\/\/marinelvis.xyz\/index.php\/wp-json\/wp\/v2\/media?parent=28"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/marinelvis.xyz\/index.php\/wp-json\/wp\/v2\/categories?post=28"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/marinelvis.xyz\/index.php\/wp-json\/wp\/v2\/tags?post=28"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}