{"id":325,"date":"2013-11-25T21:19:41","date_gmt":"2013-11-25T20:19:41","guid":{"rendered":"http:\/\/papimigas.wordpress.com\/?p=325"},"modified":"2013-11-25T21:19:41","modified_gmt":"2013-11-25T20:19:41","slug":"dyndns-auto-login","status":"publish","type":"post","link":"https:\/\/blog.papimigas.com\/index.php\/2013\/11\/25\/dyndns-auto-login\/","title":{"rendered":"DynDNS Auto-login"},"content":{"rendered":"

\"\"<\/span><\/p>\n

J\u00e1 abord\u00e1mos uma vez aqui<\/a>\u00a0a quest\u00e3o do famoso servi\u00e7o DynDNS obrigar as contas gratuitas a terem que se autenticar no site pelo menos uma vez por m\u00eas. At\u00e9 foi apresentada uma alternativa fi\u00e1vel mas… o problema \u00e9 que o servi\u00e7o DynDNS \u00e9 muito utilizado e a maior parte dos routers para PMEs quase s\u00f3 permitem este servi\u00e7o para se poder configurar o servi\u00e7o de DNS din\u00e2mico. Ent\u00e3o temos duas op\u00e7\u00f5es: ou autenticarmo-nos no site do DyndDNS de 15 em 15 dias (booooring!) ou arranjamos um script que fa\u00e7a isso por n\u00f3s \ud83d\ude42<\/p>\n

Parto do princ\u00edpio que tem o programa cron <\/a>instalado e com o servi\u00e7o ativo.<\/p>\n

Na consola do nosso linux, como root, criamos um documento novo:<\/p>\n

nano\u00a0\/etc\/cron.weekly\/dyndnslogin.sh e inserimos o seguinte texto:<\/p>\n\n\n\n
\n
#!\/bin\/bash<\/code><\/div>\n
########################################################################<\/code><\/div>\n
#<\/code><\/div>\n
# dyndns auto-login<\/code><\/div>\n
#<\/code><\/div>\n
#######################################################################<\/code><\/div>\n
<\/div>\n
########################################################################<\/code><\/div>\n
# Conta DynDNS (n\u00e3o \u00e9 o email mas sim o username)<\/code><\/div>\n
USERNAME=<\/code>\"username<\/em>\"<\/code><\/div>\n
PASSWORD=<\/code>\"password<\/em>\"<\/code><\/div>\n
########################################################################<\/code><\/div>\n
# VariaveisIn<\/code><\/div>\n
PROGNAME=dyndnslogin<\/code><\/div>\n
COOKIE=`mktemp --tmpdir=<\/code>\"\/tmp\"<\/code> -t ${PROGNAME}_cookie_***XXXX`<\/code><\/div>\n
OUTPUT=`mktemp --tmpdir=<\/code>\"\/tmp\"<\/code> -t ${PROGNAME}_output_***XXXX`<\/code><\/div>\n
USERAGENT=<\/code>\"Mozilla\/5.0\"<\/code><\/div>\n
<\/div>\n
########################################################################<\/code><\/div>\n
# Main<\/code><\/div>\n
<\/div>\n
MULTIFORM=`curl -s -k -A $USERAGENT -c $COOKIE https:<\/code>\/\/account<\/code>.dyn.com \\ | <\/code>awk<\/code> -F\\<\/code>' '<\/code>\/multiform\/<\/code>{ print $6 }'`<\/code><\/div>\n
<\/div>\n
curl -s -k --location -A <\/code>\"$USERAGENT\"<\/code> -b $COOKIE -c $COOKIE -o $OUTPUT \\--data <\/code>\"username=$USERNAME&password=$PASSWORD&iov_id=&sub mit=Log+in&multiform=$MULTIFORM\"<\/code> \\https:<\/code>\/\/account<\/code>.dyn.com\/<\/code><\/div>\n
<\/div>\n
if<\/code> grep<\/code> -E <\/code>\"(Welcome|Hi).*$USERNAME\"<\/code> $OUTPUT > <\/code>\/dev\/null<\/code> 2>&1<\/code><\/div>\n
then<\/code><\/div>\n
echo<\/code> Login com sucesso<\/code><\/div>\n
else<\/code><\/div>\n
echo<\/code> Login falhou<\/code><\/div>\n
FAILED=<\/code>\"true\"<\/code><\/div>\n
fi<\/code><\/div>\n
<\/div>\n
rm<\/code> $COOKIE<\/code><\/div>\n
rm<\/code> $OUTPUT<\/code><\/div>\n
<\/div>\n
if<\/code> [ <\/code>\"$FAILED\"<\/code> = <\/code>\"true\"<\/code> ]<\/code><\/div>\n
then<\/code><\/div>\n
exit<\/code> 1<\/code><\/div>\n
fi<\/code><\/div>\n
<\/div>\n
# EOF<\/code><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

N\u00e3o esquecer de alterar os dados de username<\/em> e password<\/em> logo no in\u00edcio do script para a conta que pretendemos usar.<\/p>\n

Em seguida salvamos e damos permiss\u00e3o de execu\u00e7\u00e3o:<\/p>\n

chmod +x\u00a0\/etc\/cron.weekly\/dyndnslogin.sh<\/pre>\n
Podemos testar executando:<\/p>\n
sh \/etc\/cron.weekly\/dyndnslogin.sh<\/span><\/p>\n
Se tudo correr bem v\u00e3o receber a resposta<\/p>\n
Login com sucesso<\/pre>\n
E assim semanalmente o nosso script vai fazer o login por n\u00f3s.<\/p>\n
Se isto vai durar muito tempo? N\u00e3o sei… depende da DynDNS. Mas para j\u00e1 funciona muito bem!<\/p>\n
Fonte<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
J\u00e1 abord\u00e1mos uma vez aqui\u00a0a quest\u00e3o do famoso servi\u00e7o DynDNS obrigar as contas gratuitas a terem que se autenticar no site pelo menos uma vez por m\u00eas. At\u00e9 foi apresentada uma alternativa fi\u00e1vel mas… o problema \u00e9 que o servi\u00e7o DynDNS \u00e9 muito utilizado e a maior parte dos routers para PMEs quase s\u00f3 permitem … Continuar a ler “DynDNS Auto-login”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[21,54],"class_list":["post-325","post","type-post","status-publish","format-standard","hentry","category-linux","tag-auto-login","tag-dyndns"],"_links":{"self":[{"href":"https:\/\/blog.papimigas.com\/index.php\/wp-json\/wp\/v2\/posts\/325","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.papimigas.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.papimigas.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.papimigas.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.papimigas.com\/index.php\/wp-json\/wp\/v2\/comments?post=325"}],"version-history":[{"count":0,"href":"https:\/\/blog.papimigas.com\/index.php\/wp-json\/wp\/v2\/posts\/325\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.papimigas.com\/index.php\/wp-json\/wp\/v2\/media?parent=325"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.papimigas.com\/index.php\/wp-json\/wp\/v2\/categories?post=325"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.papimigas.com\/index.php\/wp-json\/wp\/v2\/tags?post=325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}