VPNs remain a bit touchy and depend on specific hardware configurations.

VPN 仍然有些难以处理，并且需要依靠特别的硬件配置。

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To differentiate virtual private networks (VPNs), the Mac address of the first router the client connects to is used as a distinguishing factor.

为区分虚拟专用网(VPN)，将使用客户机第一次连接的第一个路由器的Mac地址来作为区分因素。

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Virtual Private Networks (VPNs) have been a common component of the network administrators' toolbox for years with most companies allowing VPN use.

虚拟专用网(VPNs)多年来都是网络管理员工具箱中的一个普及的部件，并且有大部分公司都允许VPN的使用。

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"So most people encrypt using external devices like VPNs or tools like 'stunnel, '" Goldsmith says.

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This simple error can be avoided with properly activated remote swiping and by using secure VPNs.

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Cisco provides network security products such as virtual private networks (VPNs) and firewalls.

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