{"id":44,"date":"2008-10-23T22:10:37","date_gmt":"2008-10-23T20:10:37","guid":{"rendered":"http:\/\/www.alvaromarin.com\/?p=44"},"modified":"2008-10-23T18:58:45","modified_gmt":"2008-10-23T16:58:45","slug":"comportamiento-curioso-de-los-spammers","status":"publish","type":"post","link":"http:\/\/www.alvaromarin.com\/2008\/10\/23\/comportamiento-curioso-de-los-spammers\/","title":{"rendered":"Comportamiento curioso de algunos spammers"},"content":{"rendered":"

Desde hace tiempo, 3 o 4 meses, vengo observando un comportamiento curioso por parte de algunos spammers. Se ve claramente en la siguiente imagen:<\/p>\n

\"RBLs\"<\/p>\n

La l\u00ednea rosa es nuestra RBL, rbl.dns-servicios.com, y el resto de l\u00edneas se corresponden con otra serie de RBLs o Rate Limits. Como se ve, existen una serie de picos (bastante notables) de emails rechazados, que siempre suelen darse a mitad tarde. El resto del d\u00eda, la actividad es normal.<\/p>\n

<\/p>\n

Se podr\u00eda pensar que los bajones son causados por fallos de resoluci\u00f3n DNS, falta de conectividad…etc (cosa que no se da en nuestros sistemas), pero en la lista de correo de MailScanner<\/a>, el otro d\u00eda, alguien comentaba que ve\u00eda en sus gr\u00e1ficas algo parecido, lo cu\u00e1l est\u00e1 bien porque hasta entonces no hab\u00eda encontrado informaci\u00f3n sobre el tema. Al menos no soy el \u00fanico :D<\/p>\n

Realic\u00e9 un seguimiento de algunas IPs que m\u00e1s spam nos env\u00edan y el resultado es este:<\/p>\n

\"IP\"<\/p>\n

\"IP\"<\/p>\n

Como se ve, tambi\u00e9n queda reflejado individualmente.<\/p>\n

Seguiremos investigando a ver si se puede sacar alg\u00fan patr\u00f3n en concreto (no hab\u00eda ning\u00fan ASN t\u00edpico de spammers que faltase en los momentos de baj\u00f3n…).<\/p>\n

Qui\u00e9n sabe :)<\/p>\n","protected":false},"excerpt":{"rendered":"

Desde hace tiempo, 3 o 4 meses, vengo observando un comportamiento curioso por parte de algunos spammers. Se ve claramente en la siguiente imagen: La l\u00ednea rosa es nuestra RBL, rbl.dns-servicios.com, y el resto de l\u00edneas se corresponden con otra … Sigue leyendo →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[47,9,111],"yoast_head":"\nComportamiento curioso de algunos spammers - www.alvaromarin.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.alvaromarin.com\/2008\/10\/23\/comportamiento-curioso-de-los-spammers\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comportamiento curioso de algunos spammers - www.alvaromarin.com\" \/>\n<meta property=\"og:description\" content=\"Desde hace tiempo, 3 o 4 meses, vengo observando un comportamiento curioso por parte de algunos spammers. 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