Articles tagged with firewall

1. Additional Complexities in Networked Systems

   Posted on September 03, 2009 in Information Systems

   Managing isolated systems is already a complicated task. Network connectivity from outside the Local Area Network (LAN) introduces new complexities that must be taken into account when designing an information security plan. The most significant concern when connecting a LAN to the Internet is protecting internal information from external attackers …

2. Using ACLs to Block NetBIOS Traffic on Cisco Catalyst Switches

   Posted on May 13, 2007 in Networking

   In a Metro Ethernet network, the possibility exists for a lot of NetBIOS broadcasts if your users are connecting directly to the ring rather than through a firewall. My first assumption was that most users would have a firewall, but this is really only guaranteed in the case of business-class …