Re: protecting mail server from DOS

2004-02-18 Thread Jose Celestino
Words by Lucas Albers [Tue, Feb 17, 2004 at 12:25:17AM -0700]: > Just recently I had my mail server swamped by a single virus machine that > kept resending a virus message, ignoring my 5xx rejection code. > > Is it possbile to block this via an iptables smtp max connection throttle > code? > > Ho

Re: protecting mail server from DOS

2004-02-18 Thread Jose Celestino
Words by Lucas Albers [Tue, Feb 17, 2004 at 12:25:17AM -0700]: > Just recently I had my mail server swamped by a single virus machine that > kept resending a virus message, ignoring my 5xx rejection code. > > Is it possbile to block this via an iptables smtp max connection throttle > code? > > Ho

Re: protecting mail server from DOS

2004-02-17 Thread Jose Alberto Guzman
Lucas Albers wrote: Just recently I had my mail server swamped by a single virus machine that kept resending a virus message, ignoring my 5xx rejection code. Is it possbile to block this via an iptables smtp max connection throttle code? How do you handle this? Via iptables?, or via qmail/postfix/e

Re: protecting mail server from DOS

2004-02-17 Thread Jose Alberto Guzman
Lucas Albers wrote: Just recently I had my mail server swamped by a single virus machine that kept resending a virus message, ignoring my 5xx rejection code. Is it possbile to block this via an iptables smtp max connection throttle code? How do you handle this? Via iptables?, or via qmail/postfix/e

Re: protecting mail server from DOS

2004-02-17 Thread Rich Puhek
Lucas Albers wrote: Just recently I had my mail server swamped by a single virus machine that kept resending a virus message, ignoring my 5xx rejection code. Is it possbile to block this via an iptables smtp max connection throttle code? How do you handle this? Via iptables?, or via qmail/postfix/e

Re: protecting mail server from DOS

2004-02-17 Thread Rich Puhek
Lucas Albers wrote: Just recently I had my mail server swamped by a single virus machine that kept resending a virus message, ignoring my 5xx rejection code. Is it possbile to block this via an iptables smtp max connection throttle code? How do you handle this? Via iptables?, or via qmail/postfix/

Re: protecting mail server from DOS

2004-02-17 Thread Michael Wood
On Tue, Feb 17, 2004 at 12:25:17AM -0700, Lucas Albers wrote: > Just recently I had my mail server swamped by a single virus machine > that kept resending a virus message, ignoring my 5xx rejection code. > > Is it possbile to block this via an iptables smtp max connection > throttle code? > > How

Re: protecting mail server from DOS

2004-02-16 Thread Michael Wood
On Tue, Feb 17, 2004 at 12:25:17AM -0700, Lucas Albers wrote: > Just recently I had my mail server swamped by a single virus machine > that kept resending a virus message, ignoring my 5xx rejection code. > > Is it possbile to block this via an iptables smtp max connection > throttle code? > > How