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Questions tagged [connection]

A connection generally refers to a TCP/IP connection, that is established as the result of the handshake between 2 hosts.

A connection generally refers to a TCP/IP connection, that is established as the result of the handshake between 2 hosts. But can also refer to the establishment of end to end connectivity of the underlying link layer, or a database connection, or some other data-orientated communication that proceeds after an initial negotiation phase.

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Is a retransmitted SYN *EXACTLY* the same as the original?

If I have a client trying to connect to a TCP server, and the client sends a couple of retransmits trying to establish a connection, is there ANY difference in the SYNs it will send? If the server SYN-ACKs on the 3rd packet, does the client have any…
Chris Phillips
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Strange Jmeter connection refuse on Tomcat

I tried difference setting in Jmeter and Tomcat. If the Threads number in JMeter is 1~200, Then tomcat is okay. If It is 300, Then after serving few requests, tomcat starts to output errors. Here is the error show in…
Tommy
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Keeping connections open

I'm new to cURL and I'm trying to do something reasonably simple. I want to login to a server and download data at regular intervals over a few hours. First, I login to the server - which I've managed by posting the login values like so: curl -v -c…
Gary
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If linux server is connected to router, internet connection for the whole network will not work

I have a machine (Fedora) which is using iptables (acting as firewall). The system worked a long time, but now there is a problem. The internet connection was failing. I looked through and found out that if the machine is up or if it is connected to…
testing
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What is responsible for Connect/Send/Wait in a HTTP request?

Services like pingdom and Google speed analyze the time consumed for reading a HTTP file. This includes DNS: Obviously, DNS management to interpret the namespaces is responsible. Connect: ??? Send: ??? Wait: ??? Receive: Disk speed in reading the…
Googlebot
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ADODB Connection - Webserver doesn't resolve the hostname of the mssql server

I have a mssql connection resource file as belows: <% Set Conn01 = Server.CreateObject ("ADODB.Connection") Conn01.Open "PROVIDER=SQLOLEDB; Data Source=forum;UID=forumuser;PWD=forumpass;APP=;Initial Catalog=forumdb" %> The webserver can interact…
jonathan dimitri
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"MySQL Server has gone away" on simple select

I get a MySQL server has gone away error on a simple query. mysql> select version(); ERROR 2006 (HY000): MySQL server has gone away No connection. Trying to reconnect... Connection id: 1 A query such as select id from users limit 1; can also…
John Smith
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Firefox users getting intermittent Connection Reset errors when downloading Zip files

I've got a site running on IIS7. Intermittently, Firefox users will get 0k files, as a result of a "Connection Reset", when downloading large zip files. Usually these are in the range of 70-100MB in size. I see nothing in the IIS logs that…
marc esher
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Server can only make outbound connections

My server is running Ubuntu 10.04 and is connected by ethernet to a router/modem device. The problem is that it's basically ignoring incoming connections. So I can't SSH into it or access the webserver. It wont even accept connections from other…
Matt
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Postfix connection cache / address verification probes

Is Postfix connection cache also applicable for address verification probes? My setup of 2 frontends with 1 backend sometimes runs into trouble under high load. Frontends verify recipients on the backend before accepting mail. Both positive and…
riha
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Establish Linux to Windows connection

We can establish connection between Unix based machines using these commands - ssh telnet but how to establish a connection between a Linux and Windows? Putty, WinSCP etc are used in Windows to connect to Linux. But how do I connect to windows from…
hari
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Windows Server 2008 not accepting connections to Server Programs

A company which our agency works for got a Windows Server 2008. I've had the job to install an FTP-Server (FileZilla Server) on this Windows Server 2008. Now my problem is that the server does not accept most of the connections. VPN-Connections to…
trampi
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Debug short connection stalls

I have an Ubuntu homeserver that I use as server/NAS/NAT/router. My problem is that lately I've experienced that the (Internet) connection can sometime stall for a couple of seconds. If I try to SSH into the router during that time, it will not…
Markus Hedlund
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Proxy-Connection Header associated with failed connections

I work with microprocessor devices that have/run a micro webserver. I have two of these devices set up so that they can be accessible to/by the Internet - I'll call the devices "A" and "B". Currently, I can successfully connect to "A" from the…
Jed
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Can only rdp or ping to Windows 7 machine intermittently

We have a Windows 7 machine that we can only intermittently rdp into or ping. We have tried this from several different machines and run into the same issue. We discovered if you reboot the problem machine and try to ping it or rdp it it works…
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