Typically the administrator needs to define a set of rules that determines access control to and from the network. Ssl remote access vpns network security huang, qiang, frahim, jazib on. Remote users use clients to establish a secure tunnel through a shared network to the enterprise. Vpns can be characterized as hosttonetwork or remote access by connecting a. Network security, firewalls and vpns edition 2 by j.
When distributing load across different geographies, use manual mep to define target gateways. Vpn security issues authentication methods supported encryption methods supported key management data stream filtering for viruses, java, active x supported certificate authorities x. Readers with experience managing a remote access solution, such as ip security ipsecbased remote access vpn, will recognize many common considerations that apply to ssl vpn based remote access solutions. Rather than arger speed internet connections, mobile workers are able to work more effectively through the use of remote access vpns. This offering enables the establishment of trusted compliancebased access for. Vpns may exist between an individual machine and a private network clienttoserver or remote access or a remote lan and a private network sitetosite. Network to network tunnels often use passwords or digital. Design guidance is provided to assist you in implementing ssl vpn in existing network infrastructures. The remote user requires the cisco vpn client software on hisher computer, once the connection is established the user will receive a private ip address from the asa and has access to the network. Connecting remote offices with the main branch can be done many ways, but for those companies looking at tightly securing their intranet, they may need to consider remote access with vpn security. A remoteaccess vpn allows individual users to establish secure connections with a remote computer network. L2tp has limited intrinsic security, and so l2tp tunnels are often protected using ipsec.
Secure remote access with ssl vpns network it expert. Ad authentication works fine with reconfiguration on ad servers. Security is the most important and critical factor for companies worldwide. Vpns was motivated by the need to reduce the cost of secure communications by leveraging ubiquitous internet access. Vpn remote access security concerns solutions experts. Remote access vpn security concerns and policy enforcement by mike stines march 16, 2003. Flexible, secure remote access in one platform security is the cornerstone of any remoteaccess implementation. Remote users dial in to an isp network access server nas. Find 9781284031676 network security, firewalls and vpns 2nd edition by michael stewart at over 30 bookstores. The internet security association and key management protocol, also called ike, is the negotiation protocol that lets the. This is also true for remote access clients belonging to a remote access community. Remote access based on ssl vpn delivers secure access to network resources by. In part three of this series, we will configure these remaining server components.
With only a standard web browser, your mobile workforce can easily and securely access email, files, intranets, applications, remote desktops, servers and other resources on the corporate lan from any. Best practices for remote access in disaster mitigation and. An ssl vpn lets users access enterprise networks from any internetenabled location. Lan connection used by a company that has employees who need to connect to the private network from various remote locations. Network security, firewalls and vpns 2nd edition by j. The ssl vpn feature lets users access enterprise networks from any internetenabled location using only a web. Securing the intranet with remote access vpn security. Chapter 1, introduction to remote access vpn technologies. When distributing load across different geographies, use manual mep to define target.
Application access virtually all ssl vpn devices aimed at smbs support a reverse web proxy that allows remote users to access internal web applications and network file shares. Light client access using snx ssl network extender. This session is designed for networking and security professionals who have deployed or are planning to deploy remote access. Always on vpn uses remote access server for connections and network policy server for requests. Always on vpn remote access and network policy server.
Ssl remote access vpns provides you with a basic working knowledge of ssl virtual private networks on cisco ssl vpncapable devices. A virtual private selfcontained network vpn is an encrypted communication channel that allows a secure connection between two remote computers via the internet. While many organizations have used ipsec vpns to meet these objectives for siteto. Hello, im trying to make remote vpn user access with ad authentication and ip address reservation using cisco asa 5505 ver 8. On the connections tab, click new ipsec remote access rule. Do you want to deploy the remote access solution for contractors or parttime employees. Isbn 9781284031676 network security, firewalls and vpns.
In the past, vpns of this kind were used mainly by companies, for example to network different company locations or to give employees remote access to the company network. Sslvpn is overtaking ipsec as the standard for secure remote access to corporate applications. This check point white paper provides guidance for network security. Ssl remote access vpns network security pdf free download. If you got 4 or more correct, return to identity and access management security school and take another lesson.
This shift in standards combined with the increasing use for mobile devices to access corporate. Do you currently have a software deployment solution. Training cisco firepower vpn losungen platinum learning partner. Security is the cornerstone of any remoteaccess implementation. Remote access based on ssl vpn delivers secure access to network resources by establishing an encrypted tunnel across the internet using a broadband cable or dsl or isp dialup connection. To ensure security, the private network connection is established using an encrypted. The recommendations contained within this paper can assist in a secure and successful implementation of a remote access vpn. Security manager supports two types of remote access vpns. Where the network is accessed remotely via wireless appropriate wireless security standards will be used. Ssl remote access vpns network security cisco press. Networklayer ipsec vpns create a peertonetwork connection between remote users and the corporate network, without easy application authentication. Save up to 80% by choosing the etextbook option for isbn.
Juniper networks secure access ssl vpn secure meeting option the secure meeting upgrade license extends the capabilities of the juniper networks secure access appliance by providing secure. Remote access based on ssl vpn delivers secure access to network resources by establishing an encrypted tunnel across the internet using a broadband cable or dsl or isp dialup. If you know the functions and feature your network requires, you can configure remote access vpns. Remote access vpn with ip address reservation solutions. A virtual private network vpn extends a private network across a public network and enables. You will also encounter special considerations that pertain to the characteristics. Ssl vpn appliances can quickly integrate into the network, providing. Network security solutions ssl vpn and remote access. Typically, a corporation that wishes to set up a large remote. Ssl remote access vpns network security ebook by qiang.
Remote access and security solution simple access ssl. An ssl vpn can secure both external remote access and internal access. When remote access vpns were first introduced they were originally intended to allow a select few individuals access to a limited number of corporate resources. Ssl and ipsec vpn tunnels for secure remote network access. This book is designed to provide information about the secure socket layer ssl virtual private network vpn. Remote access based on ssl vpn delivers secure access to network resources by establishing an encrypted tunnel across the internet using a broadband cable. Those users can access the secure resources on that network as if they were directly. Remote access security general remote access security sp 80046, security for telecommuting and broadband communications use virtual private networks sp 80077, guide to ipsec vpns sp 8001 draft, guide to ssl vpns secure remote access client devices sp 800114, users guide to securing external devices for telework and remote access. This chapter covers the remote access virtual private network vpn technologies in detail. Juniper networks secure access ssl vpn secure meeting. The basics cisco security manager lets you configure both remote access ipsec vpns and remote access ssl vpns. Dell sonicwall aventail ssl vpn gives remote users access to client server applications and internal network connections using any web enabled device.
This was last published in july 2006 dig deeper on vpn security. Gareth tomlinson cissp network and security manager commented. In a remote access environment, l2tp allows either tunneling of remote access client ppp frames via a nas to a vpn gateway concentrator or tunneling of ppp frames directly from the remote access client to the vpn gateway concentrator. You can discover existing remote access vpn configuration policies from existing live devices or from configuration files. Cisco security manager lets you configure both remote access ipsec vpns and remote access ssl. Network security remote access vpns wireless netowrks.
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