[learning notes 2021-11-18] use of Apache server
Apache source code installation
For Apache source code installation, please see the following blog, which is well written: https://blog.csdn.net/weixin_42313749/article/details/115418935
Apache server summary:
1. The folder of the installed Apache server is: / etc/httpd 2. The default root path folder of the web page is: / var/www/html 3. Th ...
Posted by nomad9 on Thu, 18 Nov 2021 14:58:22 +0100
Using autohotkey to realize the function of "using English punctuation in Chinese" of one key switching input method
As a programmer, especially the old code farmer who can't do anything without vim, the "use English punctuation in Chinese" function of the input method is essential. It allows you to avoid many unnecessary Chinese and English switching operations when writing code. However, this function is a burden when writing documents. Chinese do ...
Posted by websitesca on Wed, 17 Nov 2021 17:43:22 +0100
C# implements the "uninstall device" and "scan to detect hardware changes" of windows device manager to solve the problem that Realsense cannot connect.
In a recent project, I used C# to call Realsense to implement some 3D measurement functions. But the connection stability of Realsense seems to have some problems. I encountered the following:
one The device will be disconnected, and the device object can continue to ...
Posted by volant on Thu, 11 Nov 2021 04:26:30 +0100
Detailed analysis of PE file format
3. Structure of PE documents
3.2 NT head
By an image_ NT_ Heads structure, which contains the important fields needed when PE files are loaded into memory. Through E in DOS header_ Lfanew, you can directly locate the real PE Header part. The size of this structure is 0xf8 bytes.
typedef struct _IMAGE_NT_HEADERS {
DWORD Signature; // ...
Posted by lhaynes on Tue, 02 Nov 2021 17:04:28 +0100
Incremental synchronization of canal data from Mysql8.0 to ElasticSearch7 (windows local environment)
Incremental synchronization of canal data from Mysql8.0 to ElasticSearch7 (windows local environment)
As of the current date 2021-10-29
The current version of canal has only been updated to 1.1.6
This version of canal is going to use v1.1.5, which supports mysql8.0 and elasticsearch7. X
If you use mysql5. X, elasticsearch6. X, v1.1.4 is ...
Posted by sgiandhu on Fri, 29 Oct 2021 09:50:25 +0200
Bmp file format
1. Concept of bitmap and palette
Nowadays, Windows (3.x and 95, NT) series has become the operating system used by most users. An important factor in its success over DOS is its beautiful visual interface. For example, you can lay your favorite wallpaper on the desktop. So how does Windows display images? This is about bitmaps. We know that th ...
Posted by Crimpage on Fri, 29 Oct 2021 06:16:57 +0200
Installing RocketMQ under Linux&Windows
1, Download from the official website
Official download address
This time, the current new release version is selected: 4.9.2. Download the binary version of the compressed package.
Or directly Click download
In Linux environment, use the following command to download:
wget https://dlcdn.apache.org/rocketmq/4.9.2/rocketmq-all-4.9. ...
Posted by deveed on Thu, 28 Oct 2021 17:43:41 +0200
Java se: data types and operators
Data types and operators
Variables and types
Variable refers to the variable amount when the program runs, which is equivalent to opening up a memory space to save some data, and the value of the variable can be known only when the program runs. Type is a division of variable types. Variables of different types have different characterist ...
Posted by tores on Sat, 16 Oct 2021 03:25:43 +0200
kafka installation and configuration (cross platform: both windows and linux Installation, including zk and jdk installation)
1.jdk installation
1) windows install jdk
1. Download
Open the following link: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html , enter the JDK1.8 download official website, or directly Baidu JDK1.8, or enter the download official website.
After entering the official website, download the JDK of the c ...
Posted by ok on Fri, 15 Oct 2021 23:39:33 +0200
VMP2.13 process analysis of VMP analysis
VMP2.X version features
The VMP of version 2.X has the following changes compared with version 1.0
Self inflation increases a lot of confusing instructionsVM_ The storage mode of context is changed from memory to stack, and there is no vmp1 sectionThere are special analysis plug-ins to help analyze and understandThe overall structure has ...
Posted by JamesyBHOY on Sun, 10 Oct 2021 10:26:11 +0200