[implement a set of crawler data capture platform] [3-3-02] CentOS sets scheduled tasks / scheduled tasks

0. Series catalog When writing this set of articles, they will not be written one by one in the order of the directory. You can directly find the corresponding chapters in the directory to check. Click me to jump 1. Application scenario In actual production, there are always some tasks that need to be executed regularly: Clean up logs ...

Posted by truck7758 on Fri, 01 Apr 2022 15:39:06 +0300

Linux boot management

catalogue preface Start process Run level Start process preface    💪 One sentence per article No one needs to lose. The life suitable for oneself is the best life. This is the way for little sunflower to learn   👏 Blog home page 🎉 Little sunflower school 🙏 The article is a personal note. If there is any non-standa ...

Posted by stodge on Fri, 01 Apr 2022 10:42:36 +0300

CentOS7 operation and maintenance - iptables firewall | rule instance | super detailed

1, Overview The IP packet filtering system working in the network layer is composed of netfilter and iptables, which processes the information such as IP address and port in the data packet netfilter belongs to the firewall function system of the kernel. It is composed of some packet filtering tables, which are used to control packet filt ...

Posted by seek on Fri, 01 Apr 2022 06:39:10 +0300

Introduction and use of Kibana in ELK

1, Introduction to Kibana Kibana is an open source analysis and visualization platform for Elasticsearch, which is used to search and view the data interactively stored in Elasticsearch index. With kibana, advanced data analysis and display can be carried out through various charts. Kibana makes massive data easier to understand. It is ea ...

Posted by LuciBKen on Fri, 01 Apr 2022 05:34:34 +0300

CentOS 7 download, install and uninstall java and Maven (network disk resources)

java download You can download it directly on the official website, Download address Or if you don't want to download from the official website, I provide online disk resources here Link: https://pan.baidu.com/s/1607b4PmueXkKRgR648w50g Extraction code: 343s Upload to server After downloading, transfer it to your server (use xftp provide ...

Posted by kausee on Thu, 31 Mar 2022 07:07:15 +0300

Web server cluster -- Apache Web page and security optimization

Apache Web page optimization Web page compression Factors affecting website access speed: application response speed, network bandwidth, server performance, network transmission speed with clients, etc.One of the most important factors is Apache itself, so improving the execution speed of Apache (using web page compression) is the most co ...

Posted by c0le on Wed, 30 Mar 2022 00:22:18 +0300

Nginx and Tomcat load balancing

1, Principle of load balancing based on Nginx Nginx realizes load balancing through reverse proxy. Nginx server is used as the front end, Tomcat server is used as the back end, and web page requests are forwarded by nginx service. However, instead of forwarding all web requests, the static page requests are processed by the Ncinx server and th ...

Posted by riddhi on Tue, 29 Mar 2022 09:36:12 +0300

ELK for automatic operation and maintenance planning

1, ELK introduction ELK introduction ELK is the abbreviation of three open source software, which means elasticsearch, Logstash and kibana respectively. They are all open source software. A new filebeat is added. It is a lightweight log collection and processing tool (Agent). Filebeat occupies less resources. It is suitable for collecting ...

Posted by mentalist on Tue, 29 Mar 2022 06:47:32 +0300

Advanced learning of operation and maintenance: installing MySQL and MySQL architecture with CentOS RPM

Test requirements: 1. Install mysql5 in CentOS7 RPM mode seven 2. Install mysql5 in CentOS7 general binary mode seven 3. Briefly describe MySQL architecture. 4. Log in to the server with mysql client and reset the root password 1. Install mysql5 in CentOS7 RPM mode seven (1) First, Download MySQL Yum Repository online [root@localhost ~]# wget - ...

Posted by colake on Sat, 26 Mar 2022 18:32:03 +0300

Advanced optimization of Docker container

1. Shrink mirror Greatly reduce network I/O for downloading or uploading On the basis of ensuring the stable operation of the image environment, effectively reduce the size of the image. When the image is enough, it is of great significance (production environment). You can reduce the mirrored objects. Code written in compiled code (C, JAVA, G ...

Posted by omarh2005 on Sat, 26 Mar 2022 10:34:53 +0300