remote access
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remote access


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DEFINITION - Remote access is the ability to get access to a computer or a network from a remote distance. In corporations, people at branch offices, telecommuters, and people who are travelling may need access to the corporation's network. Home users get access to the Internet through remote access to an Internet service provider (ISP). Dial-up connection through desktop, notebook, or handheld computer modem over regular telephone lines is a common method of remote access. Remote access is also possible using a dedicated line between a computer or a remote local area network and the "central" or main corporate local area network. A dedicated line is more expensive and less flexible but offers faster data rates. Integrated Services Digital Network (ISDN) is a common method of remote access from branch offices since it combines dial-up with faster data rates. wireless, cable modem, and Digital Subscriber Line (DSL) technologies offer other possibilities for remote access.

A remote access server is the computer and associated software that is set up to handle users seeking access to network remotely. Sometimes called a communication server, a remote access server usually includes or is associated with a firewall server to ensure security and a router that can forward the remote access request to another part of the corporate network. A remote access server may include or work with a modem pool manager so that a small group of modems can be shared among a large number of intermittently present remote access users.

A remote access server may also be used as part of a virtual private network (VPN).

Learn more about Managing firewalls
Securing the intranet with remote access VPN security: Our business has a main office in the city and a branch office about 150 miles away. We need a highly secure corporate intranet. Conventional wisdom seems to say that we should have a single, ...
VPNs and remote access: Secure deployment, setup and strategies: Learn about the latest innovations in VPN technology, IPsec VPN identity and authentication options, and secure VPN deployment strategies.
IPsec VPN with Cisco router: Configuration and implementation: This series of articles explains Cisco IOS IPsec VPN configuration concepts and implementing software and hardware-based VPNs in a detailed, step-by-step process.
Windows Firewall with Advanced Security beefs up Windows 7 security: Windows Firewall with Advanced Security extends security to Windows 7 and Windows Server 2008 end users.
Checklist: Three firewall configuration tips: If you are revisiting your firewall configurations, consider these three tips to help you monitor and manage your network traffic.
Web application firewall worth depends on developer efforts: SMBs are buying Web application firewalls (WAF) for PCI DSS compliance, but if they are installed and forgotten, they won't be compliant or secure.
PCI DSS requirement: Building and maintaining a secure network: The first PCI focus area requires a set of documented configuration standards, perimeter and endpoint protection.
How many firewalls do you need?: Whether your organizations needs multiple sets of firewalls depends on whether they will protect clients, servers or both and what kind of traffic they will monitor.

CONTRIBUTORS: Charles Boldwyn, Sean J. Neumann, Amit Panjwani, and Mike Weiner
LAST UPDATED: 11 Mar 2009

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More resources from around the web:
- This tip looks at the security risks of IPsec tunneling.
- Cisco explains more in its Remote Access Server Connection Guide .
- This tip explains 'How to restrict traffic between the VPN server and remote Cisco clients.'
- This tip explores the question of whether wireless networks are inherently insecure.





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