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The file system for the Cloud Storage usually use the distributed structure which store the metadata and the user data respectively. The I/O nodes get the management information of file from the specific metadata server through the networks. Under this mode, the metadata server should be the performance bottleneck of the whole system when huge number nodes or the heavy workloads in Cloud Storage....
We speculated the techniques used by Internet censorship and compared the general methods to break through, including VPN, SSH, IPV6, proxy tools, hosts file modify and web proxy. A new method we called Proxy Pool was put forward in this paper. All our experiments were done under Internet censorship.
Desktop grid is a form of distributed computing that harvests the computing power of idle desktop computers whether these are volunteers or deployed at an institution. This paper proposes to design and implement a client-end framework of desktop grid, based on cloud storage, which can also deliver legacy applications on-demand to volunteer machines. From technical viewpoint, an isolated execution...
This essay proposes a new cross heterogeneous domain authentication model mainly based on PKI, and designs the details of authentication processes in different situations. The model achieves cross domain authentication between PKI domain and Kerberos domain effectively, and supports mutual authentications. Theoretical analysis shows that the proposed scheme has good compatibility, expansibility and...
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