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SOCKETS QUESTIONS

Sendto- forcing sending a UDP datagram of X bytes
Sendto- forcing sending a UDP datagram of X bytes
this will help That means, it cannot receive a packet of less than X bytes (which is possible if sendto returns less than X bytes).
TAG : sockets
Date : January 11 2021, 03:28 PM , By : TRobison
in socket programming, can accept() the same listening socket in multi-process(thread)?
in socket programming, can accept() the same listening socket in multi-process(thread)?
With these it helps In general, it's not a good idea to have multiple threads performing IO on the same socket without some kind of synchronization between them. In your scenario, it's possible you'd see something like: incoming connection request wa
TAG : sockets
Date : January 10 2021, 01:57 PM , By : n1ckless_id
Sockets and COBOL
Sockets and COBOL
Does that help You need to give more information about your OS and compiler.If you are on IBM z/OS with a Language Environment supported compiler, you can just call the EZASOCK functions from the z/OS communications services. The calls are well docum
TAG : sockets
Date : January 10 2021, 01:47 PM , By : Cosmin
Can anyone please tell me how to activate loopback on Wireshark?
Can anyone please tell me how to activate loopback on Wireshark?
Any of those help Probably your best option is to install and use Npcap instead of WinPcap. Be sure to install npcap's loopback adapter and capture on that interface and not on the Microsoft Loopback Adapter interface.Another very good and simple opt
TAG : sockets
Date : January 02 2021, 06:48 AM , By : cjdavis
Raw socket sendto() failure in OS X
Raw socket sendto() failure in OS X
will help you I may have solved the mystery. I too crafted a raw socket example, which runs fine on Linux, but got "Invalid Argument" error on OS X 10.6.I encountered this page "FreeBSD socket bugs and peculiarities" while googling for an answer. And
TAG : sockets
Date : January 02 2021, 06:48 AM , By : ralph okochu
Using standard library headers with CFFI
Using standard library headers with CFFI
should help you out If you are using ffi.dlopen(), then you're out of luck. The only way to do that would be to declare explicitly the struct sockaddr_in in your cdef, maybe by copy-pasting bits of the Linux headers, assuming you're on Linux---and th
TAG : sockets
Date : December 28 2020, 02:06 PM , By : Tonix
How can we have test my socket web server?
How can we have test my socket web server?
To fix the issue you can do Hello any one can say me How can we have test my socket web server ? , Frant-side
TAG : sockets
Date : December 28 2020, 05:45 AM , By : hyperNURb
How can get ip Address form socket io in Golang
How can get ip Address form socket io in Golang
fixed the issue. Will look into that further Use this expression to get the remote address: so.Request().RemoteAddr
TAG : sockets
Date : December 20 2020, 04:43 AM , By : CHeMoTaCTiC
TCP retransmission on RST - Different socket behaviour on Windows and Linux?
TCP retransmission on RST - Different socket behaviour on Windows and Linux?
wish of those help Nice find! According to this, Windows´ TCP will retry a connection if it receives a RST/ACK from the remote host after sending a SYN:
TAG : sockets
Date : December 16 2020, 02:46 PM , By : ChaseVoid
How do I close a Unix socket in Rust?
How do I close a Unix socket in Rust?
it helps some times Please learn to create a minimal reproducible example and then take the time to do so. In this case, there's no need for threads or functions or testing frameworks; running this entire program twice reproduces the error:
TAG : sockets
Date : November 28 2020, 11:01 PM , By : Matthew Steed
How to check if inbound port is in use
How to check if inbound port is in use
I wish did fix the issue. You try to connect and see if the connection succeeds. If it doesn't, then the port is not reachable (open). That's the most obvious and easiest answer.Other low-level solutions would require polling the OS itself somehow. T
TAG : sockets
Date : November 28 2020, 01:01 AM , By : anov
How to write at my own MQTT client code without using any API
How to write at my own MQTT client code without using any API
To fix this issue To do this, you have to know well the MQTT protocol, in order to use adequately commands and messages needed to perform the communication.Regarding the protocol, you can find documentation in the official page and a good explanation
TAG : sockets
Date : November 26 2020, 04:01 AM , By : Antony Briggs
NestJS multiple WebSocketGateway
NestJS multiple WebSocketGateway
help you fix your problem Yes, it is possible to create as much WebSocketGateway as you want. All you need is to register your gateways in providers property of your @Module. Gateways with same port will use only 1 socket.io server instance. When you
TAG : sockets
Date : November 25 2020, 07:27 PM , By : micaleel
Which port to use for Network discovery application
Which port to use for Network discovery application
wish helps you Would it be only as a source of inspiration, you may want to have a look at the SSDP (Simple Service Discovery Protocol) - it's UDP based, port 1900, broadcast + unicast, and is precisely intended to address your problem:http://en.wiki
TAG : sockets
Date : November 25 2020, 09:00 AM , By : FarmerDave
Why I get null.pointer exception, I am sure where aren't any null variables
Why I get null.pointer exception, I am sure where aren't any null variables
Any of those help The class connections does not have a constructor so the variable names never gets initialized. So when you call the method info and it tries to set names[n]=name it throws a NullPointerException because names is still null.It looks
TAG : sockets
Date : November 24 2020, 09:00 AM , By : moss
How to forward packets coming on wlan0 to eth0
How to forward packets coming on wlan0 to eth0
To fix this issue Unless you're doing this as a programming exercise, I suggest you just set up an SSH server on PC2, then have PC1 tunnel through PC2 using dynamic port forwarding.This way, PC1 and PC2 will be connected via a single socket (SSH's po
TAG : sockets
Date : November 19 2020, 12:41 AM , By : user122937
Not able to receive File name in server sent by client
Not able to receive File name in server sent by client
it helps some times With the information provided, two problems with transmitting the file name are apparent:(1) You do not check the return value of send. You cannot be sure what is sent.
TAG : sockets
Date : November 16 2020, 09:01 AM , By : Waynew
Varnish + nginx + ELB 499 responses
Varnish + nginx + ELB 499 responses
Hope that helps I solved my issue after understanding two facts:1) ELB instance has dynamic DNS name
TAG : sockets
Date : November 15 2020, 11:01 PM , By : Stone
timeout issue for connecting via blocking / nonblocking TCP sockets in C/C++
timeout issue for connecting via blocking / nonblocking TCP sockets in C/C++
I hope this helps you . If the server is reachable, but the port is not accessible, a non-blocking socket would fail immediately, not wait for the full timeout. But you are not detecting that because you are using select() the wrong way.You are waiti
TAG : sockets
Date : October 31 2020, 04:00 PM , By : Thx1138.6
How does socket recv function detects end of message
How does socket recv function detects end of message
fixed the issue. Will look into that further Look at this small basic python programs: , How does the server knows the message ends after the 'd' char ?
TAG : sockets
Date : September 30 2020, 02:00 PM , By : Ravenal
Is there a way to prevent sending multiple SIP messages in a single TCP packet?
Is there a way to prevent sending multiple SIP messages in a single TCP packet?
this will help Is there an option for how to prevent multiple SIP messages in a single TCP packet?
TAG : sockets
Date : September 29 2020, 08:00 AM , By : moss
Why use external libraries (like libcurl) vs. sockets for sending HTTP requests?
Why use external libraries (like libcurl) vs. sockets for sending HTTP requests?
hope this fix your issue The links you've provided in your question are in a way a pretty good explanation on why you should not code HTTP yourself it: the first link only points to the socket API and does not say anything about HTTP while the second
TAG : sockets
Date : September 26 2020, 12:00 PM , By : zdyne
Golang. Error "An established connection was aborted by the software in your host machine"
Golang. Error "An established connection was aborted by the software in your host machine"
help you fix your problem From the error code , I assume you are building this in windows and the error indicates that there is some issue in your host machine , that is your windows desktop/laptop . May be firewall or antivirus software or some othe
TAG : sockets
Date : September 23 2020, 08:00 PM , By : user106284
why connection Read return the length of buffer, not really send?
why connection Read return the length of buffer, not really send?
will be helpful for those in need You didn't send 7 bytes, you sent 2048. You're passing the buffer to conn.Write, and it writes all 2048 bytes of it. To send only the number of bytes read, you should only send the part that has the data you read:
TAG : sockets
Date : September 21 2020, 08:00 AM , By : user178709
How to use PORT command for IPv6 address
How to use PORT command for IPv6 address
this one helps. For IPv6, you need to use EPRT instead of PORT.EPRT is defined in RFC 2428 (FTP Extensions for IPv6 and NATs), in section 2: The ERPT Command.
TAG : sockets
Date : August 27 2020, 11:00 AM , By : Mariocki
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