-1
votes
1answer
43 views

TCP Server Memory management: #Connections Vs. #Requests

Given that, there is no theoretical limit to number of concurrent TCP connections a Windows 2008 server can handle. Only thing will happen is, with each connection there will be memory consumption in ...
2
votes
3answers
268 views

Windows Server TCP sockets random disconnect: how to reproduce?

We rented 10 Windows servers from a large provider in Europe. They all work as expected. One server suddenly crashed and customer care found that both disks were broken. They replaced disks and also ...
0
votes
0answers
155 views

How to forward UDP and TCP traffic from one IP to another

I have a server with two LAN cards installed. I have one server in U.S and one in India. I have created a GRE tunnel to route all traffic from the U.S Server to my Indian Server. My traffic has ...
-1
votes
1answer
93 views

Is their an official tool to tweak Windows 2008 server TCP configurations?

We are running scripts that initiates numerous TCP connections and disconnects right away. It's just to test if the remote report is opened and responsive. But we are having random strange issues ...
0
votes
2answers
155 views

Simulating many client connection to server

I've written a protocol on top of TCP using C# Sockets class which allows the transfer of files between many clients, and put it on a Windows Server 2008 VPS. I have then written the client-side ...
0
votes
1answer
35 views

Can Windows 2008 send proper TCP termination once a process has been killed? [closed]

Meet "S" and "P" two server side apps connected via some TCP socket, both running on Windows 2008. In fact, S connects to P using port 20202 At some point over the week end, P is killed without ...
1
vote
0answers
445 views

IIS Webserver failing to send a FIN/ACK

I have a Windows Server 2008 R2 SP1 box with IIS 7.5.7600.16385 installed. I have HTTP Keep-Alives switched off. Each time a web-request is made the connection is terminated. I get the following ...
1
vote
2answers
5k views

Increasing of max (more than 10) TCP Connections

I have the following problem on one of my servers: On other servers max TCP Connections is dynamical and much more higher than 10. How to increase max TCP Connections in this server in Windows ...
1
vote
0answers
195 views

how to get send-q and receive-q on windows server

in linux, is very easy to troubleshoot a remote connection problem because netstat show the send-q and recv-q. This is very useful because we can know if the remote peer is reading the server send ...
0
votes
1answer
242 views

TCP Windows scaling on Windows 2008 server

If found only this article on windows 2008 server or Windows 7 TCP Windows scaling. http://8help.osu.edu/3253.html Is there any other information that I can use to change registry that would modify ...
1
vote
1answer
387 views

WSAENOBUFS errors when performing HTTP connections on Windows Server 2008 x64

We are trying to transfer large number of files from a network share into Openstack using a custom written Erlang application (using Erlang version R15B). After about 20k files transferred the Erlang ...
-1
votes
1answer
3k views

Inbound TCP connection limit in Windows 7, according to the license [duplicate]

Possible Duplicate: Can you help me with my software licensing issue? According to the license agreement for Windows 7: You may allow up to 20 other devices to access software installed ...
1
vote
1answer
176 views

Windows server 2008 stop accepting more after 90-100K TCP connections

I am trying to test the limit of a Windows Server 2008 (64 bit with 15 GB RAM) machine for maximum inbound TCP/IP connections on a port. I am using C# with async sockets. The issue I am facing is ...
3
votes
1answer
541 views

Performance Test and TCP tuning

We are in the process of performance testing an application which receives tcp requests converts them to soap requests (WCF-httpBinding) which other services work on. The server is Windows Server ...
0
votes
1answer
2k views

TCP Window Scaling. TCP scale factor not supported due to dynamic TCP Frame Size on windows 2008 server

PROBLEM Calling an asp webservice hosted by an ISP from our WCF service hosted on Windows 2008 Server is showing timeout/no response from webservice. DIAGNOSIS Using windows network monitor ...
0
votes
1answer
968 views

How to utilise netstat information

We have an application named "Seamer" installed on 2008R2 machine named "R2DUO" which has IP address set as 192.61.247.37 in host file and 172.26.127.40 is IP address of Ethernet card .We have two ...
1
vote
3answers
11k views

Troubleshoot large number of TCP retransmits / dup ack / segment lost

I have a problem with RDC slowing to a crawl or disconnecting entirely. Client is XP SP3 w/ RDC 6, server is Win 2k8 R2. Both have been scanned thoroughly and found to be virus free. I downloaded ...
10
votes
3answers
2k views

Is it possible for a TCP connection to remain open when the client has disconnected?

We have a server application which is facing TCP exhaustion problems at around 4000 connections. This will occur every 3 or 4 weeks (approximately). The vendor, which has created this server ...
0
votes
1answer
324 views

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 ...
0
votes
4answers
6k views

Windows Server 2008 R2/IIS 7 refuses all outside tcp connections

I am unable to connect, for example, via http to a brand new installation of 64-bit Windows Server 2008. The server is on a domain, but is not DC (that's another problem altogether). The IIS7 is ...
-1
votes
1answer
794 views

How to enable jumbo frame and large TCP on Windows Server 2008

I needed to enable the jumbo frame 9000 in network setting, and I have already done that. I still need to enable large TCP on Windows Server 2008, but how do I do that?
2
votes
3answers
683 views

Windows 2008 TCP Performance

Some background... I am currently building a domain drop catch application using C#. It uses a single Socket, which sends data through an SslStream. I have spent weeks on the app and I am 100% sure ...
4
votes
1answer
2k views

low latency TCP settings on windows 2008 R2

I am running a third party software on a W2008 server. This client connects to a server via TCP. The average ping times between the two are 1ms. However, when I check the tcp connection in resource ...
2
votes
2answers
1k views

Is it possible to configure the initial window size for tcp slow start on Windows?

I need to minimize latency for sending moderate-sized messages (~100kb) from a Windows Server 2008 R2 to another machine with the same OS. Studying wireshark logs and looking at tcp graphs shows that ...
1
vote
1answer
828 views

Windows Server 2008 constantly spamming external IP's on outbound TCP port 445

I have a Windows Server 2008 box running as a Domain Controller. I have noticed in my Cisco ASA firewall logs that this box is continuously sending out (like a thousand requests a second) requests on ...
0
votes
4answers
381 views

What's port 1283?

I see a lot of connection attempts to 1283/tcp on my firewall from a client computer to a Windows Server 2008 Domain Controller. What exactly is this traffic? Something to do with NetBIOS, perhaps?
2
votes
1answer
2k views

How to increase maximum connection backlog limit in windows 2008 server

I have a Windows 2008 Server. Its maximum connection backlog limit (TCP) is 200. Is there any way to increase this limit to a higher value – say 1000 or 2000? In this article you will find ...
2
votes
1answer
303 views

Set Windows Firewall to Stateless?

Is there a way to "dumb down" the Windows Firewall on Win2003 or Win2008 from stateful to "stateless", and have it only do basic port filtering on the public interface? If not, is there a simple, ...
0
votes
2answers
4k views

Half-open TCP connection limit in Windows 2003/2008 server?

I'm having a hard time finding conclusive evidence on this: did MS put any kind of maximum concurrent TCP connection limit in Windows Server 2003 and/or 2008? (The equivalent of the XP SP2 "feature" ...
0
votes
2answers
2k views

Windows Server 2008, Stuck on TCP Handshake

The problem: My Windows 2008 Server cannot establish TCP connections with remote machines. Steps to reproduce: I have a service running on a Windows 2008 Server machine on port 40.000 with the ip ...
2
votes
2answers
8k views

What is the default TCP window size on Windows Server 2008?

What is the TCP (and UDP) default window size on Windows Server 2008? I think it's 1480 bytes, but I'm not sure. Can it be changed? How?