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Error 1: kibana login error, check the log and find: crypt_r() failed $ cat /var/log/nginx/error.log 2020/01/28 12:11:38 [crit] 8863#8863: *3 crypt_r() failed (22: Invalid argument), client: 10.20.44.113, server: xx.xx.xx.xx, request: "GET /status HTTP/1.1", host: "xx.xx.xx.xx" Cause analysis # Whe ...

ipvsadm The ipvsadm command is the management tool of lvs Cluster in the application layer. We can use this ipvsadm to manage the configuration of lvs. In fact, it implements the cluster service management: add, delete, change, RS management of cluster service: add, delete, change and view the cluster status. Management cluster service: add, ch ...

Opening Word Spring Boot Actuator Is a subproject of Spring Boot.It adds several production-level services to your application, which don't require much effort from you.In this guide, you will build an application that adds these services.   Applications you will create This guide will guide you in ...

On prometheus client golang Including type elaboration + interface example + source code excerpt Original link Prometheus: What is prometheus? There are many articles on the Internet. For the deployment and startup of prometheus, please refer to This link . prometheus provides an http interface f ...

Besu is the enterprise Ethereum product in Hyperledger, and its biggest advantage is that it is compatible with the Ethereum main network. This tutorial describes how to use Hyperledger Besu to quickly start an enterprise Ethernet network and use JSON RPC for data query and transaction submission, and how to use Truffle to develop enterprise Et ...

1, Install PhpUnit 1. Download phpunit: Click to enter 2. Configure phpunit: 1) Add environment variable Right click my computer and select properties. Click Advanced system settings on the left. At this time, system properties will pop up, select Advanced tab, and click environment variable in t ...

1, Spring Boot Security integrates OAuth2 to design security API services OAuth is an open network standard about authorization, which is widely used all over the world. The current version is version 2.0. This article focuses on the implementation of OAuth2 by Spring Boot project. If you don't know ...

How to send cross domain POST requests through JavaScript? Note - it should not refresh the page, after which I need to grab and parse the response. #1 building Advanced. ... you need to set up cname on the server so that other-serve.your-server.com points to other-server.com. Your page dynamically creates an invisible iframe that ...

1 Global Configuration user nginx nginx; # Users and groups that initiate the nginx worker process, defaulting to nobody worker_processes auto; # Number of nginx worker processes started, default 1 worker_cpu_affinity 0001 0010 0100 1000; #Binding Nginx_as a process to the specified CPU core, the default Nginx is not to bind to the process. Bi ...

What is API: API (Application Programming Interface) is a pre-defined function, which aims to provide the ability of application program and developers to access a set of routines based on a certain software or hardware without accessing the source code or understanding the details of internal working mechanism. In short, API ...