El vie, 14 de 01 de 2005 a las 21:02, seberino@xxxxxxxxxxxxxxx escribiÃ: > I'm wondering if it is ever necessary to block > *outgoing* packets at your firewall. > > As long as you block /incoming/ carefully no hacker > on the Internet can send spam through a node on > your network or anything nasty like that right? > > (I'm wondering for a wifi hotspot if any nastiness > will happen if I don't block outgoing. I block > virtually all incoming except ssh.) > > CS You *really* need to block outgoing traffic at your firewall. Think about spyware, malware and the like. They can be sending your company data to their owners. And users can use firewall-piercing and proxies to bypass your network rules if you let them do whatever they want. -- Jose Maria Lopez Hernandez Director Tecnico de bgSEC jkerouac@xxxxxxxxx bgSEC Seguridad y Consultoria de Sistemas Informaticos http://www.bgsec.com ESPAÃA The only people for me are the mad ones -- the ones who are mad to live, mad to talk, mad to be saved, desirous of everything at the same time, the ones who never yawn or say a commonplace thing, but burn, burn, burn like fabulous yellow Roman candles. -- Jack Kerouac, "On the Road"
