Programmer Group

2021SC@SDUSC catalogue introduce General steps 1. Enable TIC-TOC timing measurement 2. Define the functions and methods to be used 3. "EXACTRESCALE" and "APPROXRESCALE" 4.HYBRID switching technology 5. Zoom operation 6. Manual readjustment demonstration introduce         &n ...

preface 1, Experimental content 2, Experimental topology 3, Implementation steps   1. Dynamic routing RIP configuration   2. Divide different network segments   3. Configure single arm circuit for R1 and R4 respectively   4. ACL configuration   preface Experiment 1, Experiment 4, Experiment 5 and three ...

1, Phenomenon The three es produced use Nginx as the agent, and the client - > Nginx - > es are all long connections. The ES client will have about 30 timeout logs every day, which is caused by the client setting a 60s request timeout and actively reporting an error. The error information is as follows (timeout will occur when searching, ...

Python Web Crawler (1) Getting Started Libraries used: requestspip+BeautifulSoup4pip+tqdmpip+html5lib python version: 3.8 Compilation environment: Jupyter Notebook (Anaconda3) Tour: Chrome Knowledge involved: HTML Hypertext Markup Language , What is a crawl 1. Web Crawler (Web Crawler or Web Spider) It is a program that aut ...

reference resources TCP/IP network programming Yin Shengyu Multicast and broadcasting Multicast Multicast data transmission is based on UDP. The difference from the implementation of UDP server / client is that UDP data is transmitted to a single target, while multicast data is transmitted to a large number of hosts joining (registering) a ...

SMTP introduction I won't talk about too many basic concepts. Just turn to the book or Wikipedia, In short, SMTP is a simple mail transport protocol. Since it is a transport protocol, it is both sending and receiving mail It is different from POP3 and IMAP The difference can be seen simply from here working process SMTP is an application lay ...

Linux network programming basic API Socket address API Byte order Large end byte order (network byte order): the high-order byte (2331 bit) of an integer is stored at the low address of the memory, and the low-order byte (07 bit) is stored at the high address of the memorySmall end byte order (host byte order): the high-order byte of a ...