dns query

1 DDoS: DistributedDenialofServiceDDoS attacks, that is, distributed denial of service attacks, which are often used and difficult to prevent by hackers. Hackers generally attack domain names by creating botnets, that is, planting specific malicious

I. ARP spoofing-based data stream redirection1.1 ARP and Its workflow ARP is short for Address Resolution Protocol (Address Resolution Protocol). RFC826 describes its functions as follows: resolve the network layer protocol address of the computer

Research shows that any delay of more than 1 seconds will disrupt the user's thinking flow, resulting in a bad experience, thus losing customers, I want to do is in any device and network environment to maintain the smoothness of the web, to provide

Outline: ? How to discover services in Kubernetes ? How to discover the services provided by pod ? How to use service discovery Services ? How to use the Kube-dns discovery service ? Kube-dns principle ? Composition ?

The default Tomcat parameters are set for the development environment, rather than suitable for the production environment, especially the memory and thread configurations. The default values are very low and may become a performance bottleneck.  

Original: http://www.blogjava.net/baoyaer/articles/107278.htmlStructure diagram for Tomcat serverThis file describes how to start the Tomcat Server Element name Property Explain Server Port Specify a

1. install the software packages dig and nslookup. Centos: # yuminstallbind-utilsDebian: # apt-getupdate # apt-getinstalldnsutils set the dns server IP address in/etc/resolv. conf before querying. II. usage 1. install the software packageInstall

Dynamic domain name update using DNS APIs. The following describes the typical dns api function usage in detail. For more dns api function usage, refer to Microsoft's latest msdn knowledge base (vc2003, vc2005 has DNS api library files, and vc6.0

I have used the HTTP waterfall chart for a long time. Each browser has its own waterfall chart, which is reasonable because different browsers track network events in different ways. Some tools can be used across browsers, suchHttpwatchBecause I

Guide When you log in to the Linux server via SSH, the user name is stuck and you wait 10 seconds to prompt for password input. What is the cause of this? 10 seconds is not a long time, and eating a potato chips and drinking coffee

Recently met a domestic Daniel, heard a call DNS tunnel technology, after a study, found very interesting, record. what is DNS tunnel. DNS tunnel is the DNS tunnel. From the name point of view is to use the DNS query process to establish tunnels,

Demand CDN, full content Delivery Network, the main role is to reduce access pressure for the source station while providing clients with faster content response. In addition, the CDN can also protect the source station security. In fact, the real

I.  dns theory: DNS: Domain Name Service (domain  nsme  service) role: Resolving Domain names to IP (forward parsing) or resolve IP to domain name (reverse resolution) The classification of DNS top-level domains: Organization domain:.

1 DDoS: Distributed Denial of Service DDoS attacks, that is, distributed denial-of-service attacks, are common attacks that are difficult to prevent. Hackers generally attack domain names by creating botnets, that is, embedding specific malicious

Performance Analysis ...Related attribute semantics in window.performance.timing://. Navigationstart the start time to prepare the page for loading//. Unloadeventstart if the previous document and the current document are homologous, return the time

Source: http://book.51cto.com/art/200801/64743.htm Http://www.xxeb.com/site/domain/20070314/23.html Author: Release Date:   When the DNS client needs to query the name used in the program, it queries the DNS server to resolve the name. Each query

ArticleDirectory   1I want to add this article to my favorites one year ago ().577Total times of reading0Comments Tomcat server structureThis file describes how to start Tomcat server Element name Attribute Explanation

& Nbsp; (1) restrict name server recursive query function & nbsp; disable recursive query to enable name server passive mode, when it sends a query request to the external DNS, it will only answer the query request of its authorized domain, without

Squid + apache implements cache acceleration, squidapache In this example, squid and apache are on the same machine. squid acts as the frontend reverse proxy, port 80, apache acts as the backend web, and port 81. Server ip: 172.16.8.102 1. first, we

Options block:Listen-on port listens to the local IP address and port of the DNS query requestEg: Listen-on port 53 {192.168.0.78}; listens to the DNS query of 192.168.0.78 on the local machine. If this parameter is not followed, it indicates