• Block IP ranges from connecting to Exchange servers smtp 2005

    Running Exchange 2005 is there a way to block specific IP ranges from our smtp server? Spammers keep trying to send spam and brute force passwords locking users out.

    Karl Gechlik9,860 pointsBadges:
  • I am under a ddos attack and need to block country

    I have Cisco ASA Hardware Firewall and O don't see how to block either a bunch of IP addresses (thousands) or deny access to a whole country. Is it possible? Adding one IP at a time is not an option. Thanks

    Greycheetah5 pointsBadges:
  • Banning IP address via Windows Firewalls

    Can we ban an IP address from connecting to our network by adding it to a block list in Windows Firewalls? Can that propagate to all systems?

    TeachMeIT975 pointsBadges:
  • How can I stop a ddos attack without changing my IP addresses?

    We have about 10 IP addresses trying to cause a DDOS attack on our organization. As soon as I block the addresses in the firewall another batch takes its place. This has been ongoing for about 10 hours. How can I stop this attack without changing my IP addresses?

    Karl Gechlik9,860 pointsBadges:
  • strange routing problem

    I am having trouble getting from (Indiana) to (not sure where). I am getting stuck after I hit COMCAST-IP.edge1.Chicago2.Level3.net [] according to a tracert. is a hosting company that I use. I have contacted their support and they are not blocking...

    Pqdrummer5 pointsBadges:

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