In light of the recent DDoS atatcks against the Irish government, it is prudent that organizations take steps to prevent DDoS attacks.
Such attacks may affect either layer 7 or layer 4 of an organization's technology stack, and therefore solutions should be put in place to cover both attack vectors.
Many organizations leverage cloud-based solutions, such as: Imperva Incapsula, Cisco OpenDNS, or F5 Silverline. However, an organization can leverage more cost effective solutions as well, like: ModSecurity (with a commercial license from SpiderLabs for layer 7 protections) and iptables (for layer 4 protections).
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