Operation & Maintenance

Linux kernel learning 6 -- code analysis and application of the upper part of interrupt

Here to show you a simple interrupt program in Linux 1, V...
1:23 7 December 2021

Enterprise operation and maintenance practice -- Zabbix installation and server+web+agent construction

1. Introduction zabbix is an enterprise class...
15:19 5 December 2021

[Lab4 Cisco] OSPF neighbor establishment process and LSDB analysis

Experimental requirements 1. According to the topology prompt, enable OSPF routing protocol for each route, divide corre...
14:36 5 December 2021

Operating system -- process synchronization

Experiment 2 process synchronization 1, Purpose of the experiment: Master basic synchronization algorithms and understan...
9:10 3 December 2021

Linux PATH, PATH variable $PATH

Path problem under Linux Environment configur...
23:47 2 December 2021

Dockerfile image hierarchy

1, Federated file system (UnionFS) UnionFS (Federated file system) is a layered, lightweight and high-performance file s...
17:47 2 December 2021

MySQL database log, backup and recovery

catalogue Log type and function: 1.redo redo log 2.undo r...
15:58 1 December 2021

Ansible chapter I installation and deployment of ansible

1, Installation of Ansible epel source dnf install ansible -y ansible --viersion Basic information of ansible: /etc/ansi...
15:39 29 November 2021

pg_terminate_backend() operation and maintenance transformation -- nonsuperuser supports kill autovacuum worker

1, Background introduction In view of security considerations, the superuser of the database is generally only in the ha...
13:44 29 November 2021

Penetration-N rebound shell methods

1, What is a rebound shell? The reverse shell...
9:47 26 November 2021

linux - shell conditional judgment statements, files, strings, numbers

1: Conditional judgment syntax format     Forma...
13:46 12 November 2021

Asynchronous notification in Linux device driver

Asynchronous notification in Linux device driver The signal is similar to the "interrupt" used in hardware, bu...
12:36 12 November 2021

2021-11-11 ② enterprise virtualization Kvm management, virtual machine management, adding devices, Part II

KVM virtual machine management Components of virtual machines 1. Virtual machine configuration file [root@youngfit qemu]...
18:38 11 November 2021

Chapter III Management and optimization of Apache

1. Role of Apache: http: / / is usually used when the web is accessedhttp://  ## Hyper Text Transfer Protocol http:...
16:21 11 November 2021

The difference between linux ubuntu kill instruction and kill instruction

Refer to Article 1: kill and kill -- kill processes Refer to Article 2: how to use the kill and kill commands to stop a ...
5:58 11 November 2021

Install FTP server for Ubuntu 14.04

install   Install the ftp server with th...
6:47 10 November 2021

nginx website service

I. Overview Nginx is a high performance HTTP and reverse proxy server 1. Advantages and disadvantages: (1) The advantage...
15:58 8 November 2021

Linux expansion root directory

View disk size and format df -hT ➜ ~ df -hT file system type Capacity used available used% Mount point udev devtmpfs 43...
5:24 6 November 2021

deque of C + + container

catalogue 1.deque container concept 2. Construction of d...
11:53 30 October 2021

Install fail2ban + firewall in CentOS 8 to prevent SSH brute force cracking

To prevent online hackers from brutally cracking system accounts Using SSH, first prohibit key accounts such as root rem...
22:08 27 October 2021

Easy script -- playbook script

1: playbooks overview 1.1 what is...
6:45 26 October 2021

Load balancing lvs DR mode

preface client -> dns -> cdn(cache) -> server The client accesses dns first and then to the cache, otherwise th...
8:24 24 October 2021

kubernets cluster built from zero

kubernets cluster built from zero This paper ...
3:31 22 October 2021

Docker harbor private warehouse deployment and management

catalogue   1, Harbor overview 1. What is Harbor 2....
2:17 20 October 2021

Nginx configuration and load balancing under windows

1, Introduction Nginx(engine x) is a high-performance HTTP and reverse proxy Web server. It also provides IMAP/POP3/SMTP...
22:21 15 October 2021

OSSIM open source security information management system

2021SC@SDUSC (continued from the previous article:) __ daemonize__(self): daemon method If you receive the signal.SIGTE...
17:16 15 October 2021

Add https support for the site

I didn't want to go to https at all, because it's unnecessary and affects the access speed. However, recently, the visit...
17:05 15 October 2021

< required course for architect > - nginx

Environment introduction: Ubantu 20.04 nginx 18.1 If nginx is not installed on your ubantu, use the following command...
22:00 4 October 2021