Tip (Security): Securing the Network ======================== The first goal for network administrators is to secure the network infrastructure, including routers, switches, servers, and hosts. This is accomplished using hardening, AAA access control, ACLs, firewalls, and monitoring threats using IPS. The next goal is to secure the data as it travels across various links. This may include internal traffic, but of greater concern is protecting the data that travels outside of the organization to branch sites, telecommuter sites, and partner sites. Secure communications involves a few primary tasks: * Authentication - Guarantees that the message is not a forgery and does actually come from who it states it comes from. * Integrity - Similar to a checksum function in a frame, guarantees that no one intercepted the message and altered it. * Confidentiality - Guarantees that if the message is captured, it cannot be deciphered.
Posted on: Fri, 16 Aug 2013 19:02:11 +0000
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