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IPv4 Link Local Addresses in Fedora

A network link-local address is an address that is valid only for use within the network segment or the broadcast domain that a host is connected to. Link local addresses can be layer 2 or layer 3. For example, a 48-bit Ethernet MAC address is one form of a layer 2 link-local address. Link-local addresses are generally not guaranteed to be unique beyond a network segment. Because of this, layer 3 switches (routers) do not forward packets with layer 3 link-local addresses. For Layer 3 IPv4 link-local (IPv4LL) addresses, RFC3927 specifies the address block 169.254.0.0/16. Zero-configuration Networking (zeroconf) is a

PAE – Physical Address Extension

PAE (sometimes called PAE-X86) was first implemented by Intel in 1995 in certain models of the Pentium Pro. The PAE IA-32 architecture supports 4 additional address lines for memory selection, so physical address size increases from 32 bits to 36 bits. This enables 4Gb x 2*4 = 64Gb of physical memory to be accessed. The CPUID flag for PAE support is, naturally, PAE. Since then virtually every 32-bit CPU produced comes with PAE support. Even with a PAE-enabled CPU, the IPL32 programming model (IA32 flat memory mode) continues to be able to only see 4 Gb of memory. You need

McAfee Linux Operating System

The McAfee Linux Operating System (MLOS) provides a standardized Linux-based platform on which various McAfee security appliances are built. All MLOS versions so far have been built from Red Hat sources. There have been three major releases of MLOS to date: MLOS1 – Built from CentOS 5 sources MLOS2 – Built from RHEL 6 sources MLOS3 – Built from RHEL 7 sources Packages are RPM-based as you would expect but the version string is mlos1, mlos2 or mlos3 as shown in he following examples: bind-libs-9.3.6-25.mlos1.x86_64.rpm bind-utils-9.3.6-25.mlos1.x86_64.rpm Note that the operating system used by McAfee Firewall Enterprise (MFE) is SecureOS, a