Constructing the Network Firewall with the iptables Tool;

Implementation of LVS Load Balance Cluster with Iptables;

Research and analysis on Netfilter/Iptables Firewall in Linux Kernel;

Properties of tintable fire retarded polypropylene fibre;

This article introduces firewall and the invasion check their merit and shortcoming;how the firewall linkaging the invasion examines,zero copy,how the technical of zero copy moving after linkaging,at last,how the snort linkaging the libtable in the linux,and using zero copy in it.

Star catalog data accessing grid service is designed and implemented in this paper,in which the uniform accessing of distributed heterogeneous star catalog data basing on grid service is realized,and the data accessing result is processed and encapsulated to VOTable format.