{"id":12239,"date":"2018-08-31T16:05:26","date_gmt":"2018-08-31T19:05:26","guid":{"rendered":"https:\/\/blog.hostinger.io\/pt-tutoriais\/?p=12239"},"modified":"2023-08-04T20:23:30","modified_gmt":"2023-08-04T23:23:30","slug":"desabilitar-acesso-com-senha-ssh","status":"publish","type":"post","link":"\/pt\/tutoriais\/desabilitar-acesso-com-senha-ssh","title":{"rendered":"Como desabilitar o acesso com senha ao SSH em um VPS Linux"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><span style=\"font-weight: 400\">Primeiro voc&ecirc; precisa entender a import&acirc;ncia de desabilitar o acesso com senha ao SSH. Normalmente, as pessoas acessam seus servidores VPS com autentica&ccedil;&atilde;o via senha sem considerar que n&atilde;o &eacute; o m&eacute;todo mais seguro que existe. Caso a senha caia em m&atilde;os erradas, como de hackers, todas as suas informa&ccedil;&otilde;es podem estar em risco. Por isso que a autentica&ccedil;&atilde;o com chaves SSH &eacute; a mais segura.<\/span><\/p><p class=\"wp-block-paragraph\"><span style=\"font-weight: 400\">Neste tutorial voc&ecirc; vai aprender como desabilitar o acesso com senha ao SSH em um servidor VPS Linux.<\/span><\/p><figure class=\"wp-block-image size-large\"><a href=\"https:\/\/assets.hostinger.com\/content\/tutorials\/pdf\/Linux-Commands-Cheatsheet-BR.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"1024\" height=\"283\" src=\"https:\/\/imagedelivery.net\/LqiWLm-3MGbYHtFuUbcBtA\/wp-content\/uploads\/sites\/26\/2022\/12\/Linux-cheat-sheet-BR.png\/w=1024,h=1024,fit=scale-down\" alt=\"\" class=\"wp-image-30351\" srcset=\"https:\/\/imagedelivery.net\/LqiWLm-3MGbYHtFuUbcBtA\/wp-content\/uploads\/sites\/26\/2022\/12\/Linux-cheat-sheet-BR.png\/w=1024,fit=scale-down 1024w, https:\/\/imagedelivery.net\/LqiWLm-3MGbYHtFuUbcBtA\/wp-content\/uploads\/sites\/26\/2022\/12\/Linux-cheat-sheet-BR.png\/w=300,fit=scale-down 300w, https:\/\/imagedelivery.net\/LqiWLm-3MGbYHtFuUbcBtA\/wp-content\/uploads\/sites\/26\/2022\/12\/Linux-cheat-sheet-BR.png\/w=150,fit=scale-down 150w, https:\/\/imagedelivery.net\/LqiWLm-3MGbYHtFuUbcBtA\/wp-content\/uploads\/sites\/26\/2022\/12\/Linux-cheat-sheet-BR.png\/w=768,fit=scale-down 768w, https:\/\/imagedelivery.net\/LqiWLm-3MGbYHtFuUbcBtA\/wp-content\/uploads\/sites\/26\/2022\/12\/Linux-cheat-sheet-BR.png\/w=1536,fit=scale-down 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><h3 class=\"wp-block-heading\" id=\"h-o-que-voce-vai-precisar\"><b>O que voc&ecirc; vai precisar<\/b><\/h3><p class=\"wp-block-paragraph\"><span style=\"font-weight: 400\">Antes de iniciar voc&ecirc; vai precisar do seguinte:<\/span><\/p><ul class=\"wp-block-list\">\n<li>Um <a href=\"\/pt\/alojamento-vps\">servidor Linux<\/a> (VPS baseado em Linux).<\/li>\n\n\n\n<li>Acesso root ao servidor\/ VPS via SSH.<\/li>\n<\/ul><h2 class=\"wp-block-heading\" id=\"h-1-passo-configurar-a-autenticacao-com-chaves-ssh-no-seu-servidor\"><b>1&deg; Passo &mdash; Configurar a autentica&ccedil;&atilde;o com chaves SSH no seu servidor<\/b><\/h2><p class=\"wp-block-paragraph\"><span style=\"font-weight: 400\">Mas antes de come&ccedil;ar &eacute; importante salientar que &eacute; necess&aacute;rio configurar um outro m&eacute;todo de autentica&ccedil;&atilde;o antes de desabilitar o acesso via senha, caso contr&aacute;rio voc&ecirc; vai ter dificuldades para conectar ao servidor.<\/span><\/p><p>\n\n\n<div class=\"announcement-block announcement-block--important\">\n            <span class=\"announcement-block__heading\">\n                <svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                    <path fill-rule=\"evenodd\" clip-rule=\"evenodd\"\n                          d=\"M12 22.5C17.799 22.5 22.5 17.799 22.5 12C22.5 6.20101 17.799 1.5 12 1.5C6.20101 1.5 1.5 6.20101 1.5 12C1.5 17.799 6.20101 22.5 12 22.5ZM13.637 7.65198C13.637 6.74791 12.9041 6.01501 12 6.01501C11.0959 6.01501 10.363 6.74791 10.363 7.65198C10.5335 9.53749 10.875 13.383 10.875 13.383C10.875 14.0043 11.3787 14.508 12 14.508C12.6213 14.508 13.125 14.0043 13.125 13.383V13.38L13.637 7.65198ZM11.9927 15.714C11.3714 15.714 10.8677 16.2177 10.8677 16.839C10.8677 17.4603 11.3714 17.964 11.9927 17.964H12.0073C12.6286 17.964 13.1323 17.4603 13.1323 16.839C13.1323 16.2177 12.6286 15.714 12.0073 15.714H11.9927Z\"\n                          fill=\"#FEA419\"\/>\n                <\/svg>\n                Important\n            <\/span>\n            <p class=\"announcement-block__content\">\n                <span style=\"font-weight: 400\">&Eacute; muito <\/span><b>IMPORTANTE<\/b><span style=\"font-weight: 400\"> configurar outra forma de autentica&ccedil;&atilde;o antes de realizar as mudan&ccedil;as mostradas no tutorial. Se voc&ecirc; n&atilde;o tiver outra forma de acesso, &eacute; poss&iacute;vel que voc&ecirc; perca o acesso ao servidor ao desabilitar autentica&ccedil;&atilde;o com senha do SSH. <\/span>\n            <\/p><\/div>\n\n\n\n<\/p><p class=\"wp-block-paragraph\"><span style=\"font-weight: 400\">N&oacute;s recomendamos a autentica&ccedil;&atilde;o via chaves SSH, confira nosso tutorial sobre <\/span><a href=\"https:\/\/blog.hostinger.io\/pt-tutoriais\/como-configurar-chaves-ssh\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">como configurar chaves SSH<\/span><\/a><span style=\"font-weight: 400\">.<\/span><\/p><h2 class=\"wp-block-heading\" id=\"h-2-passo-editar-o-arquivo-de-configuracao-ssh\"><b>2&deg; Passo &mdash; Editar o arquivo de configura&ccedil;&atilde;o SSH<\/b><\/h2><p class=\"wp-block-paragraph\"><span style=\"font-weight: 400\">D&ecirc; continuidade para remover senha do SSH somente ao completar o <\/span><b>1&ordm; Passo <\/b><span style=\"font-weight: 400\">e tiver conseguido acessar seu servidor com chaves SSH.<\/span><\/p><ol class=\"wp-block-list\">\n<li><span style=\"font-weight: 400\">Conecte-se ao seu servidor via SSH.<\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400\">Abra o arquivo de configura&ccedil;&atilde;o <\/span><b>\/etc\/ssh\/sshd_config<\/b><span style=\"font-weight: 400\"> utilizando algum editor de texto, como o <\/span><b>nano<\/b><span style=\"font-weight: 400\">. Para isso &eacute; s&oacute; digitar o comando:<br><\/span><pre><i><span style=\"font-weight: 400\">nano \/etc\/ssh\/sshd_config<\/span><\/i><\/pre><\/li>\n\n\n\n<li>Com o editor aberto voc&ecirc; deve ver uma tela parecida com esta:<span style=\"font-weight: 400\"><span style=\"font-weight: 400\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-12242\" src=\"https:\/\/blog.hostinger.io\/pt-tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/editar-arquivo-configuracao-ssh.png\" alt=\"editar arquivo de configura&ccedil;&atilde;o ssh\" width=\"775\" height=\"653\" srcset=\"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/editar-arquivo-configuracao-ssh.png 775w, https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/editar-arquivo-configuracao-ssh-150x126.png 150w, https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/editar-arquivo-configuracao-ssh-300x253.png 300w, https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/editar-arquivo-configuracao-ssh-768x647.png 768w\" sizes=\"(max-width: 775px) 100vw, 775px\" \/><\/span><\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400\">Agora voc&ecirc; precisa encontrar a linha: <\/span><b>PasswordAuthentication yes<\/b><span style=\"font-weight: 400\">. O Nano possui uma ferramenta de busca, &eacute; s&oacute; pressionar <\/span><b>CTRL + W<\/b><span style=\"font-weight: 400\">, colocar a palavra PasswordAuthentication e apertar o <\/span><b>Enter<\/b><span style=\"font-weight: 400\">.<br><span style=\"font-weight: 400\"><img decoding=\"async\" width=\"589\" height=\"423\" class=\"aligncenter size-full wp-image-12243\" src=\"https:\/\/blog.hostinger.io\/pt-tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/autenticacao-senha.png\" alt=\"autentica&ccedil;&atilde;o de senha\" srcset=\"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/autenticacao-senha.png 589w, https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/autenticacao-senha-150x108.png 150w, https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/autenticacao-senha-300x215.png 300w\" sizes=\"(max-width: 589px) 100vw, 589px\" \/><\/span><\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400\">Vamos alterar onde est&aacute; escrito <\/span><b>PasswordAuthentication yes<br><\/b> <span style=\"font-weight: 400\"><img decoding=\"async\" width=\"537\" height=\"81\" class=\"aligncenter size-full wp-image-12244\" src=\"https:\/\/blog.hostinger.io\/pt-tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/autenticar-senha-sim.png\" alt=\"autenticar-senha-sim\" srcset=\"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/autenticar-senha-sim.png 537w, https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/autenticar-senha-sim-150x23.png 150w, https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/autenticar-senha-sim-300x45.png 300w\" sizes=\"(max-width: 537px) 100vw, 537px\" \/><br>Para <\/span><b>PasswordAuthentication no<\/b><span style=\"font-weight: 400\"><br><span style=\"font-weight: 400\"><img decoding=\"async\" width=\"517\" height=\"91\" class=\"aligncenter size-full wp-image-12245\" src=\"https:\/\/blog.hostinger.io\/pt-tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/autenticar-senha-no.png\" alt=\"autenticar senha no\" srcset=\"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/autenticar-senha-no.png 517w, https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/autenticar-senha-no-150x26.png 150w, https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-content\/uploads\/sites\/26\/2018\/08\/autenticar-senha-no-300x53.png 300w\" sizes=\"(max-width: 517px) 100vw, 517px\" \/><\/span><\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400\"><span style=\"font-weight: 400\">Para salvar as altera&ccedil;&otilde;es aperte <b>Ctrl + X<\/b>, digite <b>Y<\/b> e d&ecirc; <b>Enter<\/b>.<\/span><\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400\">Tamb&eacute;m &eacute; necess&aacute;rio reiniciar o servi&ccedil;o <\/span><b>SSHD<\/b><span style=\"font-weight: 400\"> para que as altera&ccedil;&otilde;es tenham efeito. Execute o comando: <br><\/span> <i style=\"color: initial\">service sshd restart<\/i> <\/li>\n<\/ol><p class=\"wp-block-paragraph\"><span style=\"font-weight: 400\">&Eacute; isso! Voc&ecirc; desabilitou o acesso com senha ao SSH em seu servidor, a partir de agora ningu&eacute;m poder&aacute; conectar ao servidor utilizando senha. Apenas usu&aacute;rios privilegiados que possuem as chaves SSH adicionadas ao servidor poder&atilde;o fazer a conex&atilde;o.<\/span><\/p><figure class=\"wp-block-image size-large\"><a href=\"\/pt\/alojamento-vps\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"1024\" height=\"300\" src=\"https:\/\/imagedelivery.net\/LqiWLm-3MGbYHtFuUbcBtA\/wp-content\/uploads\/sites\/26\/2023\/02\/BR-VPS-hosting_in-text-banner-1.png\/w=1024,h=1024,fit=scale-down\" alt=\"\" class=\"wp-image-32923\" srcset=\"https:\/\/imagedelivery.net\/LqiWLm-3MGbYHtFuUbcBtA\/wp-content\/uploads\/sites\/26\/2023\/02\/BR-VPS-hosting_in-text-banner-1.png\/w=1024,fit=scale-down 1024w, https:\/\/imagedelivery.net\/LqiWLm-3MGbYHtFuUbcBtA\/wp-content\/uploads\/sites\/26\/2023\/02\/BR-VPS-hosting_in-text-banner-1.png\/w=300,fit=scale-down 300w, https:\/\/imagedelivery.net\/LqiWLm-3MGbYHtFuUbcBtA\/wp-content\/uploads\/sites\/26\/2023\/02\/BR-VPS-hosting_in-text-banner-1.png\/w=150,fit=scale-down 150w, https:\/\/imagedelivery.net\/LqiWLm-3MGbYHtFuUbcBtA\/wp-content\/uploads\/sites\/26\/2023\/02\/BR-VPS-hosting_in-text-banner-1.png\/w=768,fit=scale-down 768w, https:\/\/imagedelivery.net\/LqiWLm-3MGbYHtFuUbcBtA\/wp-content\/uploads\/sites\/26\/2023\/02\/BR-VPS-hosting_in-text-banner-1.png\/w=1536,fit=scale-down 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><h2 class=\"wp-block-heading\" id=\"h-conclusao\"><b>Conclus&atilde;o<\/b><\/h2><p class=\"wp-block-paragraph\"><span style=\"font-weight: 400\">Voc&ecirc; aprendeu como desabilitar o acesso com senha ao SSH em seu servidor VPS. Isso torna seu servidor muito mais seguro, uma vez que ningu&eacute;m poder&aacute; acess&aacute;-lo com senha, apenas com chaves SSH ou outros m&eacute;todos de autentica&ccedil;&atilde;o avan&ccedil;ados.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Primeiro voc&ecirc; precisa entender a import&acirc;ncia de desabilitar o acesso com senha ao SSH. Normalmente, as pessoas acessam seus servidores VPS com autentica&ccedil;&atilde;o via senha sem considerar que n&atilde;o &eacute; o m&eacute;todo mais seguro que existe. Caso a senha caia em m&atilde;os erradas, como de hackers, todas as suas informa&ccedil;&otilde;es podem estar em risco. Por [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"\/pt\/tutoriais\/desabilitar-acesso-com-senha-ssh\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":78,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"rank_math_title":"","rank_math_description":"Quer mais seguran\u00e7a para o seu servidor? Ent\u00e3o saiba como desabilitar o acesso com senha ao SSH em seu servidor VPS.","rank_math_focus_keyword":"desabilitar o acesso com senha ao SSH","footnotes":""},"categories":[4915],"tags":[],"class_list":["post-12239","post","type-post","status-publish","format-standard","hentry","category-vps"],"hreflangs":[{"locale":"en-US","link":"https:\/\/www.hostinger.com\/tutorials\/how-to-disable-ssh-password-login-on-vps\/","default":1},{"locale":"pt-BR","link":"https:\/\/www.hostinger.com\/br\/tutoriais\/desabilitar-acesso-com-senha-ssh\/","default":0},{"locale":"en-PH","link":"https:\/\/www.hostinger.com\/ph\/tutorials\/how-to-disable-ssh-password-login-on-vps\/","default":0},{"locale":"en-MY","link":"https:\/\/www.hostinger.com\/my\/tutorials\/how-to-disable-ssh-password-login-on-vps\/","default":0},{"locale":"en-GB","link":"https:\/\/www.hostinger.com\/uk\/tutorials\/how-to-disable-ssh-password-login-on-vps\/","default":0},{"locale":"en-IN","link":"https:\/\/www.hostinger.com\/in\/tutorials\/how-to-disable-ssh-password-login-on-vps\/","default":0},{"locale":"en-CA","link":"https:\/\/www.hostinger.com\/ca\/tutorials\/how-to-disable-ssh-password-login-on-vps\/","default":0},{"locale":"en-AU","link":"https:\/\/www.hostinger.com\/au\/tutorials\/how-to-disable-ssh-password-login-on-vps\/","default":0},{"locale":"en-NG","link":"https:\/\/www.hostinger.com\/ng\/tutorials\/how-to-disable-ssh-password-login-on-vps\/","default":0},{"locale":"pt-PT","link":"https:\/\/www.hostinger.com\/pt\/tutoriais\/desabilitar-acesso-com-senha-ssh\/","default":0}],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-json\/wp\/v2\/posts\/12239","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-json\/wp\/v2\/users\/78"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-json\/wp\/v2\/comments?post=12239"}],"version-history":[{"count":10,"href":"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-json\/wp\/v2\/posts\/12239\/revisions"}],"predecessor-version":[{"id":38974,"href":"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-json\/wp\/v2\/posts\/12239\/revisions\/38974"}],"wp:attachment":[{"href":"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-json\/wp\/v2\/media?parent=12239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-json\/wp\/v2\/categories?post=12239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hostinger.com\/pt\/tutoriais\/wp-json\/wp\/v2\/tags?post=12239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}