http://www.mrgnetwork.com.br/wiki/ Thu, 29 Jul 2010 09:06:36 -0300 FeedCreator 1.7.2-ppt DokuWiki http://www.mrgnetwork.com.br/wiki/lib/images/favicon.ico http://www.mrgnetwork.com.br/wiki/ http://www.mrgnetwork.com.br/wiki/doku.php?id=en:maradns_phishing&rev=1254708301&do=diff1254708301 Summary Phishing In the field of computer security, phishing is the criminally fraudulent process of attempting to acquire sensitive information such as usernames, passwords and credit card details by masquerading as a trustworthy entity in an electronic communication. Marlon Cabrera en Sun, 04 Oct 2009 23:05:01 -0300 http://www.mrgnetwork.com.br/wiki/doku.php?id=mrgnetwork:blog:slowloris_dos_mitigation_guide&rev=1246896184&do=diff1246896184 Daniel Robbins wrote a nice guide about HTTP DoS vulnerability (Slowloris): “Slowloris is the name of a perl-based HTTP client that can be used as a denial of service against Apache-based HTTP servers and the squid caching proxy server. It operates by repeatedly initiating several hundred valid HTTP requests to the server, and keeping these connections open using a minimal amount of TCP traffic, in order to consume server resources. Once server resources are exhausted, the server will n… Marlon Cabrera mrgnetwork:blog Mon, 06 Jul 2009 13:03:04 -0300 http://www.mrgnetwork.com.br/wiki/doku.php?id=mrgnetwork:blog:deadwood_dns_forwarding_cache&rev=1246047498&do=diff1246047498 Deadwood is a working DNS forwarding cache. This is a UDP-only server with the following features: * Small size and memory footprint suitable for embedded systems * Simple and clean codebase * Secure design * Spoof protection: Strong cryptography used to determine the Query ID and source port * Ability to read and write the cache to a file * Dynamic cache that deletes entries not recently used * Ability to use expired entries in the cache when it is impossible to contac… Marlon Cabrera mrgnetwork:blog Fri, 26 Jun 2009 17:18:18 -0300 http://www.mrgnetwork.com.br/wiki/doku.php?id=mrgnetwork:blog:varnish_http_accelerator&rev=1236823533&do=diff1236823533 I using in this VPS the Varnish as HTTP accelerator. The first impression was very good!! It’s use advanced features of S.O. to achieve its high performance. Some features: * A modern design * VCL - a very flexible configuration language * Load balancing with health checking of backends * Partial support for ESI * URL rewriting * Graceful handling of “dead” backends Marlon Cabrera mrgnetwork:blog Wed, 11 Mar 2009 23:05:33 -0300 http://www.mrgnetwork.com.br/wiki/doku.php?id=howtos&rev=1231963651&do=diff1231963651 Português: ---------- Anti-Spam Corporativo Proteja sua rede da praga do spam. Aqui você irá encontrar instruções de como integrar uns dos melhores anti-spam que existe OSBF-LUA com o servidor de e-mail Exim. Leia mais --> anti-spam Marlon Cabrera Wed, 14 Jan 2009 18:07:31 -0300 http://www.mrgnetwork.com.br/wiki/doku.php?id=mrgnetwork:blog:combatendo_phishing_utilizando_dns&rev=1231961725&do=diff1231961725 Histórico Phishing Em computação, phishing é uma forma de fraude eletrônica, caracterizada por tentativas de adquirir informações sensíveis, tais como senhas e números de cartão de crédito, ao se fazer passar como uma pessoa confiável ou uma empresa enviando uma comunicação eletrônica oficial, como um correio ou uma mensagem instantânea. O termo Phishing surge das cada vez mais sofisticadas artimanhas para “pescar” (fish) as informações sensíveis dos usuários. Marlon Cabrera mrgnetwork:blog Wed, 14 Jan 2009 17:35:25 -0300