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Does a TCP send a SYN/ACK on every packet?
I currently have a TCP server that always listens for an incoming client, then it sends one packet of data every single second. Bur I have a quick question: Does a SYN/ACK packet only get sent on initial connections, like this: SYN ACK DATA DATA DATA Or is it sent with every packet, like this: SYN...
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How to redirect TCP-traffic to Unix domain socket
I have a legacy Linux application that's listening on a UNIX domain socket. Now, I'm trying to connect to it through a TCP-connection on a port (Port 1234). What would be the easiest way to bind the port and then redirect all incoming connections to the domain socket?
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Infiniband: How does IPoIB and TCP fit into it?
I don't have a strong networking background but I've been doing some research on Infiniband. And I'm not quite sure how the concepts of IPoIB and TCP fit into it. Can someone explain to me how they work / what they do with Infiniband? Which way is better to go?
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Is it possible to use TCP and UDP on the same server?
I understand this is a short question but it's very urgent. Can I use both TCP and UDP sockets on the same server? Particularly, would I be able to use the same port number too? Thanks!
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How to broadcast a message with UDP and TCP?
I'm currently working on a .NET solution that runs completely inside a single network. So when a user makes a change to the system, I need to launch an announcement / have everyone hear it. Do you know of a way that I can broadcast a message like this (just like UDP) while keeping a guaranteed...
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Transmission of IP Packets in TCP
I’ve read that IP packets can sometimes get lost in transmission and that TCP often requests retransmission of lost data. How often are packets lost permanently? What are the requirements for retransmission? Are lost packets a security risk?
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How much faster is UDP than TCP?
How much faster is UDP than TCP for a general protocol message exchange?
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Why is a TCP Window Update is causing my server to crash?
I'm making my own server software for a game in Java (everything was written in Java). A big problem I'm having is that I don't have any protocol documentation available so I've been reading packets with Wireshark. So, when a client is connecting, the server is sending it the level file in a Gzip...
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Why would someone use UDP instead of TCP?
Aside from speed, why would someone use UDP instead of TCP? From what I understand, UDP can lose packets, whereas TCP cannot. What other advantages does UDP offer?
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What’s in your network security and troubleshooting toolkit?
Just curious what tools you have in your network toolkit? I've heard or used snort, TCPDump, NMap, but would love other suggestions
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Lacking a FQDN during database mirroring on SQL Server 2005
I am trying to work with database mirroring on SQL Server 2005, and I keep receiving the error message, “One or more of the server network addresses lacks a fully qualified domain name (FQDN). Specify the FQDN for each server, and click Start Mirroring again.” I know that the syntax for a...
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Global communication network without the transport layer
Is it feasible to have a global communication network without the transport later? Thanks!
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I need to know about packet sniffer with a clear demo and how the packets are transmitted in TCP and UDP.
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Wake on LAN / Magic Packet broadcast doesnt work through PPTP
Hi, I have a network, where I want to use WOL from a remote PC. It works when I send a packet from inside the network (or on the server). If I connect via PPTP from a remote Windows XP PC, I can't wake up the PC on the LAN. I suspect the broadcast packet doesn't reach the LAN. The PPTP connection...
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Transfer a file by a batch job
Hi, I want to transfer a file by a batch-job (which is running on the mainframe) from a mainframe to a windows system. The file should be transferred in binary mode. The problem is that I need the CR/LF at the end of the records in the file after I transferred the file to the windows system. Do you...
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Howdy folks, If I create a new log view in event viewer and filter the results, is there any way to save this view? Every time I close event viewer I have to re-create it. Probably just MS by design.... Is there any way to script it?
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Why does exchange server 2003 create so many logon sessions? When you open the ESM and navigate to Administrative Group->Servers->Server->First Storage Group->Mailbox Store->Logons. Some users have as many as fifteen sessions, why? I also get the following error in the application...
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LAN connectivity problem with Compaq notebook
I have a Compaq EVO n1020v notebook. This works fine in our office LAN and sometimes it does not at all. Office LAN is a workgroup with ICS enabled in win 2K server. If I check the IP of the notebook it shows the IP of the LAN but never connects to the internet, can't access LAN...
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Mac address to IP address resolution
How can we resolve IP address from Mac address and can we do this from Cisco switch 3750? We are able to track port no and associated Mac address from Cisco switch by using the command #sh mac-address-table dyanamic>, but we also want to track the associated IP address with port no. Please...
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Steps to connect Printer in LAN
I have HP Laserjet 1000 series printer. Please explain to me the steps to connect this printer in LAN with 4 computers. The computers are not in LAN. I want to create a new LAN with 4 computers & the printer mentioned above. All four computers have Windows 98 as Operating System.
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