RADIUS lets an ISP's RAS servers forward user authentication requests to a corporate network through the Internet. Many people refer to this technology as VPN. Network tunneling-which PPTP, Layer 2 Tunneling Protocol (L2TP), and IP Security (IPSec) implement-protects network traffic by forming a secure channel between a remote machine on the Internet and a tunnel server in the corporate network. However, ISPs that have many POPs and RAS servers need centralized user account databases for user authentication the alternative is to maintain user accounts on every RAS server.įortunately, two Internet technologies-network tunneling and Remote Authentication Dial-in User Service (RADIUS)-greatly reduce problems with security and user account management in RAS. Network managers have no control over the way an ISP manages its user accounts. Without centralized user account management, users need an extra account, in addition to their corporate network account, to dial up an ISP. If RAS security isn't adequate, intruders can steal sensitive business data as it traverses the Internet. However, network managers face two areas of concern when outsourcing RAS: security and user account management. Third, with a good service level agreement (SLA), ISPs guarantee high service availability. (In general, ISPs charge connection fees that are much less expensive than long-distance charges.) Second, network managers needn't worry about RAS server hardware upgrades. First, remote users can dial up their ISP's local Point of Presence (POP) to reach their corporate network, which reduces long-distance charges. One viable solution is to outsource RAS to an ISP so that the ISP provides and hosts RAS for the outsourcing company. In the face of these changes, network managers need to create long-term RAS solutions. For example, asymmetric digital subscriber line (ADSL), wireless, and cable modems are replacing slower traditional modems. At the same time, remote access media technologies continue to evolve. As the number of remote users grows, network managers need to add more modems and RAS servers to their networks, and companies spend more money on long distance and toll-free telephone service. Many Windows NT network managers have installed RAS servers with modem pools in their networks to provide dial-in service to remote users for accessing corporate network resources. The Setup Assistant will appear, click "Continue" and then authorize/activate the computer with a new Adobe ID and password (that you created in the first step).Mobile users, virtual offices, and telecommuting aren't futurist fantasies in 1999. Restarting Adobe Editions will require you to reactivate your computer."Ģ. After selecting "Deauthorize" a message will appear stating "Your computer was successfully deauthorized.Deauthorize Computer box will appear and say, "Are you sure you want to deauthorize this computer? If you have protected items in your Digital Editions library, they may no longer be readable.".How to de-authorize Adobe Digital Editions on your computer Once you know your Adobe ID, you will need to de-authorize Adobe Digital Editions (if necessary) and then authorize with the correct information. You can also click Trouble signing in at the Adobe website. If you don't know which Adobe ID is the correct one, please contact Adobe for assistance. You'll need to return it and place it on hold again. If your eBook was downloaded before you authorized your computer or device, or if the book was downloaded with a different Adobe ID, you won't be able to read this book. If you then authorize the device after downloading the book, you will get this error message when you try to open the book or download it again. This error message occurs when you initially download an eBook to a computer or device not authorized with the correct Adobe ID.
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