Multiplexer poll

poll Like select, poll is also a ready event notification scheme. Poll has only one function, that is, waiting.Poll solves two select problems: there is no upper limit on the file descriptor that poll waits for.poll separates the input and output using variables. Therefore, each cycle does not need to be added again. Introduction to poll ...

Posted on Fri, 03 Dec 2021 23:43:14 -0500 by 2DaysAway

The third experiment of computer network in Xiamen University

The third experiment of computer network in Xiamen University preparation 1. Install the local echo service and listen to port 7. I use the ubuntu virtual machine, and the modified files are slightly different from CentOS 7. You can see that I have configured it. (if you don't need to configure it, you can search and open the echo standard ...

Posted on Mon, 22 Nov 2021 03:22:15 -0500 by zeropaid

0 basic takes you to configure Ensp/Cisco simulator or physical machine experimental case: tutorial on the design and establishment of small enterprise Intranet network

catalogue 1, Design content 2, Demand analysis 3, Scheme 1: Cisco complementary graph construction 4, Scheme 1 basic communication configuration (Cisco command) 4.1: some common commands 4.2: complete basic configuration command 4.3: static routing configuration 4.4: delete port from VLAN (instance) 4.5: router serial port connection ( ...

Posted on Thu, 11 Nov 2021 00:22:19 -0500 by sbcwebs

Network programming -- multiple options for sockets

reference resources TCP/IP network programming Yin Shengyu Multiple options for sockets Some socket options are listed in the table above. IPPROTO_IP layer options are IP protocol related matters, IPPROTO_TCP layer options are matters related to TCP protocol, sol_ The socket layer is a general option related to sockets Read the options (G ...

Posted on Thu, 28 Oct 2021 14:39:44 -0400 by David4321

Cisco packet tracker experiment

1, Connect two PC s directly to build LAN Connect two PC s directly to form a network. Note: cross wires are required for direct connection. For the basic network configuration of two PC s, you only need to configure the IP address, and then ping each other successfully. Configure two PC s PC0PC1192.168.10.1192.168.10.2 ping each oth ...

Posted on Tue, 26 Oct 2021 06:36:47 -0400 by obrienkev

How to detect whether the socket is closed, socket closing detection and processing

socket closing detection and processing Detect socket shutdown reference SIGPIPE signal processing and sorting When calling write, send, sendto and other sending functions, the SIGPIPE signal is triggered, resulting in the direct exit of the program. Program received signal SIGPIPE, Broken pipe. 0x00007ffff7af2224 in write () from /lib/x86_6 ...

Posted on Sat, 23 Oct 2021 09:19:43 -0400 by perpetualshaun

Computer network - data link layer

Bandwidth refers to the maximum speed supported by the network equipment, which is independent of the propagation speed of the signal in the medium, Determined by the sending capability of the sender? The bandwidth provided by the network operator is determined by the outlet bandwidth of the router on the link, If the router exit bandwidth is i ...

Posted on Thu, 14 Oct 2021 16:53:18 -0400 by archbeta

The MOVAPS issue is one step behind a 100-step getshell

When you perfectly laid out your stack, leaked the address of libc, got the syetem address in libc, got the'/bin/sh'address, and sendline got through one step later, but you suddenly found out, what? Why did system fail? The address is also right, check it over and over, and it's all right. At this point you start to wonder if a new libc was ...

Posted on Wed, 06 Oct 2021 23:00:24 -0400 by Crackhead

Client-side Rendering Service-side Rendering and Code Implementation

1 Definition 1.1 Client Rendering Prior to this, the page rendering process: Browser requests an HTML textRendering process parses HTML text to build DOM treeWhile parsing HTML, if you encounter inline styles or style scripts, download the build style rules, and if you encounter JavaScript scripts, download and execute themThe rendering proc ...

Posted on Sun, 26 Sep 2021 12:18:17 -0400 by azsolo

Network programming -- connection oriented server and client programming

reference resources TCP/IP network programming Yin Shengyu Preparation of connection oriented server and client Understanding TCP and UDP According to different data transmission modes, sockets based on network protocol are generally divided into TCP sockets and UDP sockets. Because TCP socket is connection oriented, it is also called strea ...

Posted on Sat, 25 Sep 2021 05:37:22 -0400 by tyrnt