special to access a network via VPN?

Only take public data during the trip. Controlled and Restricted data are not ,authorized to leave the university.,- Use encryption to protect your laptop and external storage from any tampering.,- Always use UC's VPN service to access the internet.,- Do not plug any peripheral devices, given by a foreign national, into your laptop.,- At all times, maintain physical possession of your laptop.,- You may also consult with the Office of Information Security for any additions ,questions.,Cell phones/Smartphones,- Contained in your cell phone/smartphone is a lot of personal information. This ,includes phone numbers, text messages, pictures, videos, personal email and work ,email.,- Do not use a personal cell phone/smartphone while on your overseas travels.- Consult with the Office of Information Security for the various options of cell phone ,usage during overseas travel.,Tablets,- Tablets can contain personal information as well as data classified under UC's Data ,Protection Policy. ,- Unless the tablet has been digitally sanitized and restored to factory defaults, or is an ,entirely brand new tablet that has never been used before, it is not recommended to ,take a tablet with you during overseas travel. ,- If a tablet needs to be taken during overseas travel, it must support the use of ,encryption and has the ability to use the Junos Pulse VPN client to access UC's VPN ,services.,

VPG-based VPN service

Two main tasks are involved in the development of a network architecture: the development ofa software system and the design and analysis of algorithms. The first task focuses on softwareengineering aspects to satisfy the system requirements. The second concentrates on developingcontrol functions that meet performance objectives. A thorough evaluation of the performancecharacteristics of a network control system has to take into account both of these aspects. Ourapproach to evaluating a target architecture is to build a software prototype, designed according to this architecture, which runs the intended algorithms [CHA96b].The emulation platform consists of four building blocks: parallel simulation kernel, emulationsupport, real-time visualization and interactive control, and emulated system (Figure 9).Figure 8 Management console for a VPG-based VPN service. The upper layer represents theVP network, the lower layer the VPG network. The vertical bars on the VP network indicatethe utilization, the vertical bars on the VPG network the allocation of VPG bandwidth to VPs. The module for real-time visualization and interactive control contains an interface which provides 3-D visual abstractions of the system state. The emulation support module coordinatesthe exchange of control and monitoring messages between the graphical interface and the emulated system. It reads the states of the emulated system, and performs filtering and abstractionoperations before making the information available for visualization. Control information fromthe user is mapped onto a set of control parameters that are interpreted by the emulated system.

VPN throughput is relatively

fully utilises the crypto engines as well as the other on-chip resources. When theresource has been fully utilised, the system is saturated. However, if more workload isinput, more arbitrations and control overhead will happen which have an impact onthe data throughput, but this throughput is relatively stable when more workload isinput. Figure 6a shows that the performance of the block cipher engines represented byDES is sensitive to the number of engines and the bus width as well as the number ofDMAs. Considering the performance/cost tradoff, 2 parallel DES engines with 2 W/RDMAs can generate nearly 2 Gbps data throughput but consume relatively littlepower and area. For Figure 6b, data throughput is less sensitive to the bus width andthe number of DMAs than to the number of engines because that public-key cipherengine has a much longer operating time so that the data transfer efficiency has littleeffect on the overall performance. Although the curves marked by triangle and reversetriangle provide much higher data throughput compared to the other curves, thehardware implementation under these configuration patterns are quite area and powerconsumptive. Hence, the configuration with 64 bit data bus width and 2 parallelpublic-key cipher engines is chosen which is sufficient for the overall systemperformance. The SHA-1 engine provides fewer throughput and smaller area thanDES engine, hence 4 SHA-1 engines are implemented to achieve the Gbps throughput.Following the same methodology and according to the specific performance/areatradeoff and design targets, the optimal design parameters can be chosen from theperformance evaluation results, which show that 4 parallel crypto engines aresufficient for a hash function with 2 parallel crypto engines for each kind of blockcipher and public-key cipher. The experiments also show that the configuration with2 CDMAs and 4 WDMAs/RDMAs is sufficient for internal data transferrequirements. The data import and export for each crypto engine are implementedwith FIFOs to facilitate the data transfer process. The optimal positioning of thecrypto engines makes the parallel processing possible; hence, different independenttasks can be processed simultaneously

VPN on the iPhone or iPod touch

most apps on the iPhone or iPod touch don't have individual preferences screens as they do in OS X or in Windows. Instead, you'll access these options from the Settings app. This is also where you can change system-wide settings, such as sounds and choice of wallpaper. Here you'll also find a toggle for Airplane Mode (which disables cellular antennas for safe usage on an airline) and networking options.Because this app does so much, it's by far the most crowded space on your device—there are fourteen separate menus on the main screen, plus entries for any third-party apps (see "One Menu to Rule Them All"). It can get pretty confusing, pretty fast—so let's slow down and take a quick look at each of the main preferences.Airplane modeIf you travel frequently, Airplane Mode is a necessity: it temporarily switches off the cellular antenna—and other potentially unfriendly  that could interfere with the airplane's navigational system, allowing you to safely use the device in the air once the captain gives the all-clear.When Airplane Mode is on, an airplane will replace the bars in the upper left corner of your screen, and all Phone settings will be grayed out. Thankfully, the phone still allows Wi-Fi connections, so if you happen to be taking a flight on one of the airlines that currently supplies Wi-Fi access, you'll be able to surf the Web and Twitter away.

Campbelland Fiske (1959) suggest determining VPN

To further explore the three-factor model, data wereanalysed for male and female separately. Male andfemale sample sizes were considered adequate forexploratory analysis at this stage. All 17 items loadedas expected in both samplesÐsame factors emerged ineach case. In addition, the magnitude of the factorloading for all items was very similar. These resultsprovide evidence of reliability and construct validity forthe three dimensions of Internet self-e� cacy at theindividual level.Finally, the instrument's correlation matrix wasanalysed for convergent and discriminant validity.Using this approach, discriminant validity is tested foreach item by counting the number of times it correlatesmore highly with an item of another variable (factor)than with items of its own theoretical variable. Campbelland Fiske (1959) suggest determining whether this countis higher than half the potential comparisons. However,in this case, common method variances are present so itis unclear how large a count would be acceptable. Anexamination of the matrix for the 17-item instrumentreveals that only item 16 correlates more highly withitems of other constructs than with item 13 (an item ofits own construct). The correlation between items 16 and13 is 0.48 and signi®cant at p50.01. Each of theremaining 16 items is more highly correlated with theother items in its group than with any of the itemsmeasuring other variables. This suggests convergent anddiscriminant validity for the recommended three factor17-item instrument.

Remote-Access User Requirements vpn

Remote-Access User Requirements

Road warriors and telecommuters alike have the same requirements while on the road as when in the office. Most likely they

will need access to the following: Domain Name System (DNS) to resolve Internet host and domain names, Windows

Internet Naming Service (WINS) to resolve hosts in their Windows domain, and a virtual IP address that will allow them to

access the corporate Intranet. These values are pushed to a remote client by the ISAKMP configuration method (IKE

MODCFG) during tunnel establishment after successful authentication. The virtual address can in turn be used by any device

on the intranet to connect the client. For times when users are out of the office and out of control, Cisco recommends that

you control the connection they have both to your intranet and the Internet. If you choose to allow split tunneling, make

sure that personal firewall software is installed, updated, and running, and that it has a valid security policy on the

remote-access client. Otherwise, if a rogue applet, Trojan horse, or some other outside source gains control of the client, after

it has been compromised it could then be used to attack the enterprise network. Cisco does not recommend enabling split

tunneling on clients without firewall capability

adaptive VPN has been proposed

In this paper, a new mechanism called adaptiveVPN has been proposed that enables enterprises toselectively trade off security for some traffic so thatan NSP can provide value-added services for this traf-fic. This mechanism benefits the enterprise because itcan outsource some services to the NSP; it benefitsthe NSP by increasing its revenue opportunities. Foran NSP to provide value-added services, some or allof the packet headers and/or the application dataneed to be visible at the device (i.e., the IPSS) thatprovides the value-added service. In an end-to-endVPN, packets are encrypted end-to-end from theclient to the enterprise VPN gateway, and neitherany headers, nor application data are visible withinthe network. In a network-based VPN, the user VPNsession is terminated within the network at an IPSS,allowing the IPSS to provide value-added services.Adaptive VPN enables traffic from a specific user tobe carried both on an end-to-end VPN session and/ora network-based VPN session, based on the NAIofthe user and the application that is being accessed.We have modified the Lucent security product suitethat provides VPN services (i.e., the Lucent IPSecclient, the LSMS, and the Lucent VPN firewall brick) to support adaptive VPN. The design and implementation of these modifications have been discussed inthis paper.