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Can somebody please explain connection pooling to me please?
I am just not understanding it by searching the internet.
please read this:
http://msdn.microsoft.com/en-us/library/8xx3tyca.aspx
http://www.15seconds.com/issue/970531.htm
this could be also very helpful..- (:
It is layer that handles connections. Instead of opening and handling connection from your application,
This way you say
gimme_connection
and you get the connection becuase it was allready opened or if needed it is reopened. This is usefull for databases where there are lot of "processes" who need connections on same address.
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I am using an stm32f2xx-series controller in my project. I want to know whether an external flash is connected to the micro-controller or not without doing any read/write operations to the external flash. Is that possible?
If yes, please explain the means to do so.
If it matters, communication between the controller and the external flash is SPI.
Thanks in advance.
I can't think of any way your firmware can detect the presence of an SPI device without talking to it. Reading a status or device identification register is how you typically probe for it.
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I want to write a script which could login to the remote server and give the control back to the user on the terminal so that user could execute the commands after that. It is basically to avoid a lengthy procedure to login to the server.
Please suggest me how I can do this.
Thanks in advance
If the remote server is running on linux, then use ssh keys for doing this job, then you'll be able to login with just one command:
ssh <servername>
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I have got telnet server running on a bsd target. I want to connect to this target from multiple other machines. Surprisingly it does not allow more connections.
I checked why and found it is not listening(listen) in a loop. So, I kinda fixed it. But I was wondering is there any specific reason why telnetd code is kept with single connection at a time? (I am allowed to connect to telnetd server from only one client for a particular port.)
(I know telnet is not a safe option. But I am having just fun on small embedded platform and getting things working is more imp than security at this moment.)
Thanks
Telnet is supposed to be launched by inetd. You need to configure inetd to do the listening for you.
The wikipedia article that I linked to explains how to do that.
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How can I scan/record IP requests from a specific application or task? Could I do this purely in command line or is extra software required?
Wireshark is a very powerful tool for tracing connections and even examining packet content. By using the appropriate filters you can monitor all network activity of your application.
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I want to connect ubuntu virtual boxes with each other on a network. I want to use hadoop on it. So i need to put them in a network. It requires ssh to communicate. Can anyone help regarding it.
The easiest way is to change your adapter to "Bridged networking" instead of "Nat", the default. This way the guest system will get an ip on your local network and you can connect directly to it.