Most voted "networks" questions
Use of networks is not permitted subject matter on this site. Use of this tag probably means that the question is not appropriate. DO NOT USE for social networks. A computer network, often referred to only as a network, is a collection of computers and devices interconnected by communication channels that facilitate communication between users and allows users to share resources.
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answers204336
viewsWhat is the difference between asynchronous and synchronous communication?
I’ve heard a lot about asynchronous and synchronous communication, but I don’t know what they really are. Could someone explain to me what the difference and how each one works? When and what should…
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answers10012
viewsWhat are Network Sockets and Websockets?
I am studying real-time Node.js programming and I have arisen some doubts regarding network sockets. I found nothing explained in detail, so I decided to open the question. What is a network socket…
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answers35740
viewsWhat is TCP and UDP? What is the difference between the two protocols?
Whenever I come across some speed meter, or even when talking about streaming services like Streaming, these two terms are cited somehow, but what do they mean anyway? What’s the difference between…
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answers4679
viewsHow to get the list of devices connected to the network
I need to find the devices connected to the network on which my program runs. It is a network via Wifi (I do not know if this changes the difficulty of the thing), where I know that there are at…
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answers2109
viewsHow to advertise server IP on the network?
I am developing an application composed of a server NodeJS which shall provide data in JSON for customers, in case an application for Android, all running on internal network. I have already managed…
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answer402
viewsIs it true (yet?) that each Tor router maintains a connection with each other router? Why?
The original article describing the tor project, in the first paragraph of section 4, it says: Each onion router (Onion router) maintains a TLS connection with each other onion router. The paper is…
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answer832
viewsHow to copy a file from the network to my computer using C#?
I have a desktop application that needs to copy media files from a server, videos and images. The server is on the same network as the terminal on which the program will be installed. The problem…
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answers2973
viewsWhat’s the difference between socket and port?
Developing a app service-oriented, I came across the following question: What is the difference between door and socket within the computational framework?
terminology socket connection networks architecture-computersasked 7 years, 8 months ago Alexandro Campos 81 -
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answers112
viewsCheck which processes are connected to the internet
It is possible to check which processes are connected to the internet and what is their destination?
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answer1768
viewsWhat is a loopback interface?
I was going through socket connection issues on my server: Causing the error [could not bind to "tcp://127.0.0.1:8843". Cannot assign request Adress]? I managed to solve the problem. The technician…
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answer962
viewsRemote access to Mysql database
I have a BD within a corporate network on a local machine serving as a Mysql server. The structure of the network works like this! I need to access for example the machine that is marked red, and in…
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answer705
viewsHow to extract information from an HTTP header with Python?
We know that in the HTTP protocol, the end of the header is indicated by "\r\n\r\n". Example: It may be that, for some reason, the customer does not send the "\r\n\r\n" to the server (could be an…
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answer155
viewsOptimized approach of checking if there is a certain entry in Windows hosts file
I have a Java web application with Applets that access services on the web. These services are accessed through a specific hostname (example: services.webapp.com.br) configured in the application.…
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answer612
viewsHow to disable and enable a network adapter with Delphi?
I have an application that at some point should disable and enable the Windows network adapter, I searched through the internet, but found nothing. Test before posting an answer because dubious…
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answers1485
viewsI cannot access localhost on another network machine
I’m trying to access the localhost (ip: 192.168.0.11) via another network machine. Start Apache with 8080 port access (with Easyphp Devserver 16.1) and type in the browser of another network machine…
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answer205
viewsHow much does an HTTP request cost?
Client sends a post bodiless to any API post('api.dominio.com') Server returns only 204 status code return res.status(204) Assuming the above situation happens, the client makes a request without…
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answers248
viewsHow to find the cause of discarded and error packets
My net’s a little slow today. Taking a look at the interfaces I saw that the eth1 which is the internal network there is a lot of error and scartes. ifconfig eth1 eth1 Link encap:Ethernet Endereço…
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answer976
viewsHow do I make an application available only on my wireless network?
I’m developing an app, and I want it to only be available to devices connected to my Wi-Fi network. I can even leave running on my personal computer and access via ip, something like…
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answer630
viewsWhy does the decrease of the subnet mask fold the size of the original network?
Reading about IP protocol and network addressing, I don’t understand why the "diminishing" the size of the subnet mask in 1 bit, generates a "augmentation" network size. I understood the reason for…
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answer611
viewsTracert or Traceroute in Java, without calling the OS
I am developing a web application that will test the servers and will bring the result equal to a tracert of Windows or the traceroute Linux. I am developing in Java and using the commands mentioned…
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answer283
viewsWhat are Network Mask, Gateway and how do they relate to the modem/router?
I think the most accurate question would be: "How does a client/host connection occur from the output of the client package, going through the internal network, leaving the modem until arriving at…
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answer1674
viewsComparison between FTP and HTTP for file transfer
An issue that puzzles me is about transferring binary files over the internet. I have experience in using FTP, which eventually went through firewall issues on clients. Another issue advocated by…
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answer873
viewsWhat is Broken Pipe Error?
What does the Broken Pipe error mean? And also what would be a Pipe in computing? This error has occurred to me several times and in various programming languages even when using some programs like…
networks language-independent computer-science tcp networkasked 4 years, 11 months ago Nakamoto 1,341 -
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answer97
viewsList exiting order while looping
The script below captures the INTERFACE network of a HOST, and inserts into the database (POSTGRES), I swapped the cursor method for a print to check how it was being inserted into the database, and…
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answers1198
viewsGet network path
I have a Form that is saved on the network that is mapped as \\\\BRJGS090\suporte$ in the unit Z:. This Form runs an application that is in the same folder through the ProcessStartInfo, on the local…
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answer187
viewsWhat is Rootdse
The manager of my company, gave me a file talking very little about "rootDSE", and told me that it is a way to integrate LDAP with programming languages. I’ve never heard of it this way, and I don’t…
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answers877
viewsCreate login page for Hotel to access the WIFI
The hotels usually share WIFI, but it is necessary to enter an authentication page, I needed to do the same but I have a question, that page is allocated in the Router? Thank you
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answer630
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answer94
viewsObject problems using java sockets
I’m trying to pass the person object that was instantiated on the server to the client. But I’m not getting it. Below are the classes I used: Server public class ServidorTCPBasico { public static…
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answer1215
viewsTransfer network files C#
I wonder if there is any way to transfer files on a local network without using the Socket Class in C#? and in terms of performance what is the fastest method of transferring files over a local…
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answer562
viewsCalculation of Shannon entropy in network traffic (saved in CAP file) using Python
I have a dump file (CAP format) of a network traffic capture made with Ubuntu’s tcp dump. Until a certain time, it is a traffic free of attacks. Then, begin a series of attacks of type TCP SYN…
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answers356
viewsChecking a Dos/Ddos attack (Denial of service) on a network dump (PCAP file)
from scapy.all import * import dpkt f1 = open("semAtaque.pcap") pcap = dpkt.pcap.Reader(f1) f1.close() f2 = open("Ataques.pcap") pcap = dpkt.pcap.Reader(f2) f2.close() I have two network traffic…
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answer353
viewsShare internet via wifi using command line
I have a wifi adapter, or could be a notebook, and I share the internet via Wifi, that’s not the problem, follows below how I create a wifi network: Create a wifi network Access CMD as…
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answers110
viewsLocal Network Android App
I would like to know where to start studying to create an app that works on a local network. I have a version of this App that works using Firebase with my online database. I wanted now to do…
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answers170
viewsHow to receive Client connections => Server, using vpn software?
I have a remote access software (Client / Server) and want to make the connection between the Client (connects to the Server using a host name) => Server using a vpn software on the Server side,…
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answers88
viewsNeural networks: how to adjust a line in the predicted values
I don’t know much about this world of artificial intelligence, but I have a data set that tends to be a linear function, and one thing I needed was to find the angular coefficient of the line that…
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answers39
viewsConnections between Virtual Machines - Vmware
I have 2 virtual machines, one with ubuntu server, another with windows 7 , the 2 machines are in the same class of IP, windows - 10.10.1.3 ubuntu server - 10.10.1.2 the 2 machines if "pingam" only…
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answer3015
viewsHow to redirect a subdomain using the Registry DNS service.br
I have a private server with fixed IP and I have some websites running on port 80. Configuration: Debian Linux and Apache For example, I have two subdomains: IP_SERVIDOR/site1 IP_SERVIDOR/site2 I…
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answer3127
viewsShare virtual machine VPN connection with real machine
I have a problem because I started using a few months ago Ubuntu and now recently migrated to Mint. Work developing with Java Web but to do tests I need to access the client’s database through a…
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answers94
viewsSending an icmp echo in C
I’m studying the use of raw sockets and its functioning in the C language, but I was left with a doubt: When I send echo, I need to give value to the checksum of my icmp header that will send the…
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answer123
viewsPacket traffic on the network
A long time ago, I had knowledge of a technique that basically all the data that is sent or received by the router, is "duplicated" and forwarded to a specific address and the obvious original…
networksasked 10 years, 1 month ago Daniela Morais 4,687 -
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answers899
viewsHow to use Firebird database on network with C#?
I developed a C# Windows Forms application with Firebird database and I need to place the application with the database on a machine that will be like a server. With this, I need to access this…
c# database visual-studio-2013 firebird networksasked 9 years, 11 months ago André Morais Martins 367 -
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answers30
viewsUse of Data Franchise for Uninterrupted Ping
I have a network monitoring project where I will ping several hosts through a 3g/4g connection to each host. I need to decide which franchise I will hire and since the current plans simply cut…
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answers86
viewsMeasure RTT in JAVA
Is there any way to measure latency between a client and a JAVA server? I intend to create a proxy server that will redirect the request of a client to one of the other two servers, and one of the…
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answers1389
viewsHow to differentiate device type from IP?
How to know what type of device is using an IP? I wonder if there is any way to validate whether an IP belongs to a computer, a mobile device, etc. This is to differentiate device types from IP. I’m…
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answer265
viewsDue to NAT, is the IP access count imperfect?
I found it difficult to find content on the internet about this. I would like to know in general what is NAT (Network Address Translation), how it maps private Ips on a public IP and mainly where…
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answer1432
viewsAccessing a shared directory through PHP, is it possible?
I have a remote server that has a shared folder ex: \server Inside this directory there are several files that I would like to check the size with PHP. Doubt: With PHP I can access a shared folder…
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answer3995
viewsMysql server with Xampp to be accessed by another machine?
I am a complete beginner in dealing with Web programming and local and remote servers, my notion on these subjects is quite partial. Well, I have a system that will need access to a Mysql database.…
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answers73
viewsApplication in c# that collects data from a computer network
Good evening, I am developing an application in c# that collects data from several computers with logically different Ips, this access is being done at the same time and the information is handled…
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answer61
viewsWhy does the server require open ports on an access modem but the client does not?
I had this question about how much I was thinking of creating a chat for direct communication between two computers whether local or remote. This will be my first study project where I apply network…