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The Encryption line requires that the remote browser use HTTPS to connect to the CUPS server web interface. 5. Allow access to the configuration files for your remote host. Similar to the admin pages, the CUPS configuration file restricts access to the configuration pages. If you want to be able to add or remove printers from a remote location, you ll need to list the IP addresses of the remote workstations in the <Location /admin/conf> section:

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[franksprn] comment = Frank s shared printer on the server valid users = frank melanie nick path = /home/frank/spool printer = franks_printer

Microsoft Web Services platform The Microsoft .NET Framework Web Services infrastructure Leveraging ASP.NET features in Web Services Inside an ASP.NET Web Service In this chapter, you learn about the Microsoft technologies for executing, creating, and consuming Web Services on the Microsoft platform. Although it's possible to build or consume Web Services on a platform with support for only the core technologies (XML, TCP/IP, HTTP, and SOAP), it's certainly not a task suited for the beginning programmer or the easily intimidated. But the power of Web Services is in the basic design principle that they should be simple to create and easy to call. Rather than waste your time writing Web Service infrastructure code, you should be able to focus your time and energy on the actual functionality of your application and let the platform do the rest. The Microsoft .NET Framework and Visual Studio .NET do just that. They provide an excellent, easy-to-use platform for building and consuming Web Services, as you'll soon find out.

9.1.1.4 Very-High-Data-Rate Digital Subscriber Line Very-high-data-rate Digital Subscriber Line (VDSL) is a high-speed ADSL technology that was formalized in 2004 as G.993.1. This initial speci cation provides for downstream data rates up to 55 Mbps and upstream rates up to 15 Mbps over distances up to 1000 ft (300 m) or so, depending on factors such as local loop quality. In order to achieve these data rates, the frequency range increases to approximately 8.8 MHz divided among 2048 subcarriers. As attenuation is a considerable issue at this high frequency, performance drops precipitously beyond 1000 ft. VDSL evolution was rapid. The ITU reached agreement in 2005 on recommendation G.993.2, the speci cation for two versions of VDSL2.

Figure 17-17 illustrates the three domains that are linked by transitive trust relationships. This new trait, transitive, essentially means that if domain A trusts domain B and domain B trusts domain C, then A also trusts C. Another way to look at it is by stating that a friend of my friend is also my friend. Figure 17-17 illustrates the transitive trusts. You might be wondering why, then, Windows Server 2008 domains are automatically transitive, whereas legacy NT domains are not. There is no magic in this, no nifty trick performed by Microsoft other than the adoption of an established security standard long overdue: Kerberos. The ticket-granting service that Kerberos and Active Directory bring to Windows Server 2008 creates a distributed security network. Like the Single Sign-On initiative discussed earlier, Kerberos tickets issued by one domain can be used as good currency in another domain. The Kerberos ticket is like a multinational visa or passport that allows the bearer to gain access to any territory that accepts it.

Figure 3.3-1 shows the local exchange and a number of subscriber lines. The lines are two-wire bidirectional analog circuits (c). They pass through their line circuits (LC) and are converted into four-wire analog circuits (d) by hybrids (H). First-order PCM multiplexes convert m of these circuits (m 24 or 30) into a four-wire digital multiplex circuit (b) that carries PCM-coded speech (Section 1.5.1). These circuits are attached to digital multiplexer ports (DMP) of the switchblock. The bit format on (b) is as shown in Fig. 1.5-4. Also attached to DMP ports are a number of multiplexed digital service circuits. The switchblock provides temporary 64-kb/s digital paths between a service circuit and a subscriber line more exactly, a PCM multiplex channel (b) associated

function display_copyright_feed( $post_content ) { if( !$copyright_text = get_option( copyright_notices_text ) ) return $post_content; return $post_content . $copyright_text; }

The basic unit for compilation, distribution, reuse, versioning, and security in the .NET Framework is the assembly. In object-oriented programming (OOP) terminology, this can be considered the boundary of encapsulation; and indeed the .NET Framework is object oriented. See the following sidebar for some additional references for OOP technology and Microsoft s .NET implementation of OOP technology. An assembly contains the executable code as IL and all metadata resources for one or more types. Much of the metadata is information about the types contained in the assembly. Each assembly also includes a metadata manifest. The manifest includes the friendly name and the attributes that comprise the strong name for the assembly, provided of course the assembly was created with a strong name. The manifest also includes the assembly s references. The references are a complete listing of any dependent assemblies for the assembly. From the assembly manifest, the JIT compiler can efficiently convert an assembly s IL to machine instructions as needed.