Hello. I'm about to connect my Debian-box to a LAN with alot of those 'wannabe-crackers'.
I know this is not very wise, and the safest way to avoid being messed with is not to connect at all. But still, it's low cost Internet access :) I think I can secure my box quite good with SSH, ipchains and disabling most of the inetd-services. But what about 'sniffers'? I have no experience in sniffers and even if my SSH is protected, my mail and IRC-client connections are not encrypted. When Exim is connecting to another host to deliver mail, can they see the contents of the connection? What can I do to protect myself from this? Regards... Andreas