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DNS Tunneling – Domain Name Server
"If, on one system, it is possible to transmit bits to another in any form, and in turn receive a reply as a result of that transmission, then it is inherently impossible to effectively limit or censor the flow of data between them."
The mechanism for DNS tunnel comprises of binding or can say encapsulating the binary data within DNS queries and replies in order to implement the DNS name lookup itself , using base32 and base64 encoding, in order to enable the bi-directional carrier for the data. Hence, the user may also tunnel the data simultaneously to remote system, while domain name lookups on a network.
Different layers of OSI Model ?
How receiver detects error The frame is 10011101. The generator is 1001. The message after appending the three zeros is 10011101000. The reminder on dividing 10011101000 by 100
Name the two commands that save the running-config to a TFTP server Ans) Two commands are:- a) copy running tftp b) write network
The performance of interconnection networks is measured on the below parameters. 1) Bandwidth: It determines maximum transfer rate between any two nodes. It is measured in MB
Uses of fragmentation and reassembly The More bit is used for fragmentation and reassembly. If this bit is 0, then either there has been no fragmentation of this packet or this
Authoritative DNS Servers Every organization with publicly accessible hosts ( such as web server and mail several on the internet must provide publicly accessible D
This example illustrate the use of lastprivate clause void for_loop (int n, float *a, float *b) { int i; #pragma omp parallel { #pragma omp for lastprivate(i) for
State the specification of high-end server A mid-range or high-end server with the following specifications would be sufficient for a medium to large organisation: A Pentiu
Explain Presentation layer in OSI model
Q. Unshielded Twisted Pair - transmission media? - A most common kind suitable for both voice and data transmission - Categories are determined by chain quality - Cat 3 c
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