Bloquear el acceso a sitios web utilizando archivo hosts – cancer – World

La idea de esta entrada surgió luego de escribir sobre lasolución a no poder ver los anuncios de adsense desde mi computadora. Por lo general esto se implementa en escuelas para evitar que los estudiantes accedan a ciertos sitios web de ocio o que no posean fines académicos. A su vez algunos padres también están interesados en este tema para cuidar a sus hijos de visitar sitios web con contenido sensible para ellos. Otra utilidad que se le puede dar a esto es el bloqueo de publicidad en los sitios web. Si bien es una manera que tienen los webmasters de rentabilizar sus sitios a veces si se poseen una gran cantidad de anuncios y sobre todo pop-ups puede resultar ser realmente molesto.

Para bloquear sitios web lo que haremos será abrir la carpetaC:\Windows\System32\drivers\etc y vamos a editar el archivohosts con elbloc de notas o el editor de textos de nuestra preferencia, esto lo hacemos haciendoclick derecho sobre el archivo hosts, luegoclick en abrir.

Abrirá una nueva ventana en la queelegiremos nuestro editor de textos y hacemosclick en aceptar.

Nos encontraremos algunas líneas que contienen la ip127.0.0.1 junto al nombre de los dominios bloqueados,por ejemplo:127.0.0.1 activate.adobe.com, lo que haremos será agregar una nueva línea con la ip 127.0.0.1 junto el dominio del sitio web que queremos bloquear. Hagamos una prueba confacebook.com. Lo que agregaremos a nuestro archivo hosts será127.0.0.1 facebook.com.

Se recomienda hacer un respaldo del archivo hosts antes de editarlo.

Nota: la ip y el dominio están separados por una tabulación.

Puede que en windows 7 necesitemos permisos de administrador para editar el archivo hosts, podemos modificar los permisos de la carpeta etc, perosí no queremos complicarnos tanto, copiamos el archivo hosts y lo pegamos en el escritorio (o cualquier otra carpeta) esta copia que se encuentra en el escritorio la editamos y guardamos. Luego, nuestro nuevo archivo hosts que ha sido editado y se encuentra en el escritorio lo copiamos y pegamos en la carpeta C:\windows\system32\drivers\etc nos preguntará sí queremos remplazar el archivo hosts y le decimos que si.

Una vez agregado el sitio web que queremos bloquear vamos a probar sí realmente ha sido bloqueado. Desde el navegador google chrome observaremos lo siguiente.

Sí hemos hecho todo bien notaremos los resultados en nuestro navegador. Para bloquear anuncios depublicidad y pop-ups debemos averiguar el dominio de donde provienen, es muy común encontrar en sitios de descarga o anime y manga publicidad mediante pop-ups. Cuando estos pop-ups se abran, tomaremos la url del sitio web de la barra de direcciones de nuestro navegador para agregarla en nuestro archivo hosts y realizar el bloqueo.

Al realizar este bloqueo cuando recarguemos nuevamente la página notaremos que no se abrirán los pop-ups.

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Solución - No puedo ver los anuncios de adsense desde mi computadora – World – coche

Hace poco implementégoogle adsense en el blog, pero no lograba observar los banners. Pensé que sería así por algunas horas, pero después de recibir el correo de aprobación por parte adsense aún seguía sin poder ver los anuncios. Luego de algunos intentos, decidí probar entrando al blog desde otra computadora y en esta sí podía ver los anuncios. Investigando que era lo que estaba mal en mi equipo encontré la siguientesolución.

Debemos entrar a la carpetaC:\Windows\System32\drivers\etc abrimos el archivohosts con el bloc de notas o bien con algún editor de texto.

En este archivo vamos a eliminar la línea127.0.0.1 pagead2.googlesyndication.com luego guardamos el archivo y abrimos de nuevo nuestro sitio web para comprobar que ahora si podemos ver nuestros anuncios.

Básicamente lo que sucede es queel archivo hosts bloquea el enlace pagead2.googlesyndication.com el cual es elencargado de mostrar los anuncios adsense.

Puede que en windows 7 necesitemos permisos de administrador para editar el archivo hosts, podemos modificar los permisos de la carpeta etc, perosí no queremos complicarnos tanto, copiamos el archivo hosts y lo pegamos en el escritorio (o cualquier otra carpeta) esta copia que se encuentra en el escritorio la editamos y guardamos. Luego, nuestro nuevo archivo hosts que ha sido editado y se encuentra en el escritorio lo copiamos y pegamos en la carpetaC:\windows\system32\drivers\etc nos preguntará sí queremos remplazar el archivo hosts y le decimos que si.

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