Unix

Essays on UNP Volume II

I. overview   there are two branches of interprocess communication mentioned in this book, posix and system V. most...
21:13 11 November 2021

Percona MySQL View Tables Not Accessed

It's really hard to find out if a table in an instance has access.( ...
12:51 28 June 2020

Data mining -- common data preprocessing

0. Read and write data (1) Read txt file ...
2:41 12 June 2020

Django framework 7: configuring caching

1, Django cache Description: In the dynamic website, the ...
11:06 2 June 2020

Python:sip Compilation and Use

1. Compile sip source code Unzip the sip source and run PythonConfigure.py-p win32-g++ (win32-g++ means using the mingw...
12:21 25 May 2020

Build / dev/kmem to enumerate all Linux kernel modules (including hidden ones)

Can Linux system have lsmod to enumerate all kernel modules? Isn't procfs fragrant? Why bother enumerating from / dev/km...
23:53 16 May 2020

Unix Domain Socket

add by zhj: Unix Domain Socket is the optimization of network socket, which is applicable to the situation that the serv...
9:12 5 May 2020

Path, Paths and Files of Java

Preface Because I've been stuck by these inte...
4:52 11 February 2020

Install R & D server

It's really a process of energy consuming to reinstall the server, especially the whole data backup with ghost, the snai...
5:15 7 February 2020

nginx worker process loop

When the worker process starts, it first initializes the environment it needs to run, then it enters a cycle in which it...
23:18 3 February 2020

PX4 reads the message sent by STM32F4 serial port through serial port and publishes the UORB topic

PX4 reads the message sent by STM32F4 serial port through serial port and publishes the UORB topic This small project is to read the data sent by STM...
4:35 1 February 2020

Slow code Python? Hands on how to speed up your code by 30%

Yun Qi Hao: https://yqh.aliyun.comThe first-hand cloud information, the selected cloud enterprise case base of different industries, and the best prac...
6:58 13 January 2020

[Go] golang buffer channel to manage a group of goroutine work

passageway1. When a resource needs to be shared between goroutines, the channel sets up a pipeline between goroutines2. No buffer channel and buffered...
0:50 4 December 2019

PostgreSQL remote link server configuration

PostgreSQL server needs to be configured to be remotely linked by users Profile:pg_hba.conf controls access security and manages the access rights of ...
8:08 2 December 2019

Samba server configuration under Centos7 (actual combat!)

Samba overview Samba is a free software to implement the SMB protocol on Linux and UNIX systems, which consists of server and client programs. SMB (S...
16:13 5 November 2019

PHP method of generating order number

The first way to generate unique order number in PHP PHP code $str = date('Ymd') . str_pad(mt_rand(1, 99999), 5, '0', STR_PAD_LEFT...
13:35 5 November 2019