xfinity dns

Kubernetes Cluster Deployment DNS ServiceIn Kubernetes each service will be assigned a virtual IP, each service under normal circumstances will not change for a long time, this is relative to the pod of the indefinite IP, the use of the cluster app is relatively stable.But the service's information injected into the pod is currently using an environment variable, and relies heavily on pod (RC) and service creation order, which makes the cluster look l

Several security questions about DNS Author: demonalex In the TCP/IP architecture, the most insecure is the data security at the application layer.Program/The remote buffer overflow and Script Injection of the operating system occur at this layer. Do you know how insecure it is ?! Today, I want to talk about the security of the DNS service, a protocol that is closely related to your daily network connec

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 caching any external data, so it is impossible to suffer from cache poisoning (1) restrict name server recursive query Disabling recursive queries can enable the name server to enter the passive mode. when it

ConceptDefault dns lookup sequence for linux clients: Local DNS Cache → local hosts file → preferred DNS server (recursive) Linux DNS Server Query sequence:The DNS cache of the preferred server → the domain in which the preferred server is responsible → query information fro

Article title: detailed explanation of dns settings in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. DNS overview 　　 DNS is the Domain Name System, which can convert a Domain Name such as www.21php.com to an IP addres

I wrote a set of small scripts a year ago. Today I did not find any blog posts. Now I have posted them. The main background is as follows: DNS and HTTP hijacking need to be monitored, but many DNS servers refuse to respond to requests from non-local operators in the region, so we have to distribute the monitoring sites to different places. In fact, to do this, use nagios's distributed architecture. I wrote

In actual application, DNS resolution errors may occur, that is, when we access a domain name, it cannot be resolved to an IP address, however, you can directly enter the website IP address for normal access, which is caused by a DNS resolution failure. This phenomenon has a high probability of occurrence, so this article will teach you some basic troubleshooting methods from scratch. 1. What is a

DNS is one of the core Internet protocols. Whether it's surfing the web or programming, you need to know a little bit about it.This article describes in detail The principle of DNS and how to use the tool software to observe its operation. My goal is that after reading this article, you will be able to fully understand DNS.First, What is DNS?The role of

BIND: no more. Since the invention of Paul Mockapetris in 1983, it has become the de facto standard of DNS in the Internet. ISC (Internet Software Consortium) is responsible for maintenance. Nominum (www.nominum.com) company to complete, BIND 9. x is a free software, Solaris standard configuration, even in China Telecom, most of the use of bind8.x/9.x. However, in October 21, 2002, The Denial-of-Service (DoS) attack against 13

DNS is the domain name resolution system. It can convert an IP address to a domain name or an IP address.1. Install DNSStart> set> Control Panel> Add/deleteProgram-> Add/delete Windows Components-> "Network Services"-> select "Domain Name Service System (DNS)"-> install the service as determined 2. Create a DNS positive phase resolution RegionStart> program> Ad

Provincial primary server secondary serverBeijing DNS 202.106.196.115 202.106.0.20Shanghai DNS 202.96.199.20.202.96.0.20.Tianjin DNS 202.99.96.68 10.10.64.68Guangdong DNS 202.96.128.68 202.96.128.110Henan DNS 202.102.227.68 202.102.245.12Guangxi

DNS recursive query and iterative query Summary There has always been confusion about the "recursion" and "iteration" approaches to DNS queries. Most people just tell you. "DNS clients request recursive queries to DNS servers," and "query requests between DNS servers are i

One of the most important components of any current TCP/IP network is the DNS server. A number of things a DNS server can accomplish, such as parsing an Internet URL into an IP address, resolving the host name on the local network, and providing the infrastructure on which the Windows Active Directory depends. Therefore, deploying a DNS server is not a very simpl

DNS is a very important basic service. Many applications are based on DNS services, such as the most commonly used HTTP browser. Many of my friends said they could not access the internet in the Forum. In fact, they could not resolve the FQDN name, that is, there was a problem with accessing the DNS service. If they only used IP addresses for access, for example,

This article divides the DNS into two kinds, one is the host or the embedded device DNS, one is the website domain name DNS, to tell the DNS after the fall the harm that brings.One: Router DNS hijackingYour local network connection DNS