These are gatekeepers made of hardware and software that protect a computer network by shutting out unauthorized people and letting other authorized go only to the areas they have privileges to use.
这些由软硬件构成的网守系统通过阻止未经认证的访问、限制授权访问的访问权限，保护计算机网络。
These are gatekeepers made of hardware and software that protect a computer network by shutting out unauthorized people and letting other authorized go only to the areas they have privileges to use.
这些由软硬件构成的网守系统通过阻止未经认证的访问、限制授权访问的访问权限，保护计算机网络。
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