Indeed chkuser and smtp-auth are enabled by default. Erik
On 1/13/06, Fabio Milano <[EMAIL PROTECTED]> wrote: > Hi, > > Is the chkuser patch and smtp-auth installed by defualt. I need to do > anything to initialize these? (I used your install script) > > Thank you for the wonderful answers, and this list really makes it > possible for people to get into Qmail-Toaster. The efforts of everyone > on this list is much appreciated. > > Fabio > > > On 1/13/06, Jake Vickers <[EMAIL PROTECTED]> wrote: > > Fabio Milano wrote: > > > > >Hi, > > > > > >I have heard alot about people hijacking email servers and using it > > >for SPAM relaying? Any advice on how to prevent this? > > > > > > > > Some of it cannot be prevented, really. If they send an email to a bad > > address at your server, with return path to the actual person they want > > the spam to go to, when your server bounces it, it sends it to the > > return path which is the person they wanted to get the spam in the first > > place (I know, that sentence doesn't make much sense to me, either). > > They can of course brute-force weak email passwords to use your SMTP > > services to relay messages. There are a few different ways to send > > through someone else's server. The chkuser patch was implemented to fix > > a couple of these holes, and smtp-auth was put in to plug another smtp > > hole. Unless you have a specific example, the only other way I can think > > of to "hijack" a mail server is by obtaining a user or root's password > > if it's a weak one. > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
