Linux Advanced_Details of DNS Services and BIND

It's not easy to succeed. Double your efforts! 1 Name Resolution Introduction and DNS 1.1 How DNS services work 1.2 DNS Query Type 1.3 Name Server 1.4 Parse Type 1.5 Complete Query Request Processes 2 DNS service related concepts and technologies 2.1 Type of DNS Server 2.2 Area Transport 2.3 Parsi ...

Posted on Sat, 06 Jun 2020 21:31:22 -0700 by beboni

scrapy configuration parameters (settings.py)

Import Configuration How do I gracefully import settings.py configuration parameters from scrapy?You can't always use from scrapy import settings or from scrapy.settings import XXX.It doesn't look like anything. scrapy provides a way to import settings: from_crawler @classmethod def from_crawler(cls, crawler): server = crawler.settings.get('S ...

Posted on Mon, 18 May 2020 10:03:15 -0700 by rgriffin3838

Calico Network Advancement

Total Catalog Index: K8s Network Calico From Getting Started to Abandoning Series 1. Create Services kubectl create ns advanced-policy-demo Since k8s version v1.18.2 discarded the replicas command, the nginx service was created using a yaml file vim nginx-deployment.yaml apiVersion: apps/v1 kind: Deployment metadata:   name: nginx   namespace: ...

Posted on Thu, 07 May 2020 17:14:57 -0700 by Jen_u41

Linux server configuration and management series - resolve dependency violation - yum rollback

How to solve the damage of package dependency Solution of package dependency destruction How to solve the damage of package dependency background Error reporting Solutions step The development of rollback method of yum 1. Background Today, I'm going to build a DNS server. Why do I report an error whe ...

Posted on Tue, 05 May 2020 09:59:21 -0700 by lucasmontan

java get ip address and network interface

Network related objects are in the java.net package. 1. Get the host object InetAddress //Get local host object InetAddress host = InetAddress.getLocalHost(); //Obtain the host object according to ip address or host name. DNS resolution is required when obtaining the host by host name InetAddress host = InetAddress.getByName("192.168.100 ...

Posted on Sun, 03 May 2020 11:45:54 -0700 by jug

prometheus (version 2.0.0) Series II

On the configuration of prometheus Prometheus configuration is YAML, this article will use a Sample configuration To interpret Official configuration here, good English #Global configuration will be applied to all configuration items, and global configuration will be overridden for the same configuration in specific configuration items glob ...

Posted on Fri, 01 May 2020 06:45:17 -0700 by somenoise

Can't remember the docker command? Don't worry. Docker graphical management tool, Portainer, will help you

What is docker? I don't know, just Google it. Many people have a headache when they contact docker, because there are many commands to remember. But the development of IT technology is so amazing. Here comes the non graphical interface management tool. Today, we will introduce Porter, a relatively mature, stable and easy-to-use docker graphica ...

Posted on Mon, 13 Apr 2020 07:16:55 -0700 by quasiman

Which keys of SSH

Known Host Keys Prevent man in the middle attacks. https://www.ssh.com/ssh/host-key#known-host-keys SSH clients store host keys for hosts they have ever connected to. These stored host keys are called known host keys, and the collection is often called known hosts. In OpenSSH, the collection of known host keys is stored in /etc/ssh/known_ ...

Posted on Fri, 10 Apr 2020 08:13:37 -0700 by WanamakerMedia

device does not seem;RTNETLINK answers:File exists

The problem of Centos 7 server's abnormal networkTroubleshooting steps:1. Confirm whether there is an IP address2. Whether the network card is restarted successfully3. Whether there is a conflicting Network & Network manger4. Check whether the configuration file of the network card is normalWarning: mainly look at the Log. The default Log ...

Posted on Tue, 07 Apr 2020 23:14:11 -0700 by needphphelp

Solution to the problem of inconsistency of domain file types in DNS master-slave server

Background The DNS server of the company has made master-slave configuration. When using the slave server for resolution recently, it was found that it could not be resolved inexplicably. After repeated checks, no problem was found in the configuration. When looking at the domain file, it was found that there was a gar ...

Posted on Wed, 01 Apr 2020 17:49:52 -0700 by davidska