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DNS [poizuningu] <DNS cash [poizuningu]>
Alias:
DNS cache poisoning
Field:
Security > network > DNS [poizuningu] |
Rewriting the information of domain management selfishly, the attack technique which it tries not to be able to arrive in domain of specification, in
In specification of old DNS server software, information of another domain being mingled into the information which is sent from the server who manages a certain domain information, it retains without especially verifying receiving. You abuse this, originally you are accustomed to sending information of the domain which does not have management authority to the various DNS server selfishly, the attack which takes over that domain DNS cash [poizuningu] you call.
The internic.net sight which is one of the domain management groups in 1997 is taken over, the function which is certified whether or not originally it received the incident where the top-level domain which does not exist is newly founded selfishly, it was sent from the server where all DNS items of information had proper management authority in the DNS server from now on, is installed. But, without renewing the old server software with the network which is continued to use there are times when even presently it is repainted in disinformation.
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DNS round robin <DNS round robin>
Reading: D n s round robin
Field:
Internet > domain > DNS round robin |
Applying domain name and DNS which matches IP address on Internet, the technique which does the load distribution of the server whose access is many. Allotting plural IP addresses to one domain name, at each time there is the inquiry it prevents the fact that access concentrates to
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DNS reverse look-up <Opposite pulling>
Alias:
Reverse look-up and reverse lookup
Field:
Internet > domain > DNS reverse look-up |
| Using DNS and the like, inspect the host name which corresponds to IP address. In order to utilize the service on usual Internet, excessively is not necessary, but totaling the IP address which in the log remains, e.g., it draws up environmental data, prevents access original ? name, it is used for the use in regard to management. In contrast to this, inspecting IP address from host name and with says. It is possible from host name to calculate the IP address which always corresponds, but as for the necessity always to allot host name because it is not, as for the opposite pulling there are times when it fails in IP address. |
DNS look-up <DNS look-up>
Reading: D n s look-up
Field:
Internet > domain > DNS look-up
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| DNS and the like using, domain name from you inspect the IP address which corresponds, inspect the opposite. Calculating IP address from domain name the righteousness pulling the opposite pulling (reverse look-up) with it means that domain name is calculated from IP address. It can know the address be sure to correspond from domain name, but because to IP address domain name it is always allotted with it does not limit, when the domain name which corresponds does not exist, it is. |
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