Firewalls not only guard against unwanted access, they can also be used to create a secure channel through an open public network, like the Internet – Chinese translation

Sign in | English | Terms of Use

Google | Forvo | +

Firewalls not only guard against unwanted access, they can also be used to create a secure channel through an open public network, like the Internet

防火墙不仅能防止无用访问、而且能通过开放的公共网络、如互联网、建立安全通道

The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error | Get short URL | Language Selection Tips