HTTP.sys makes this possible. From the article: …because WCF and IIS 6.0 both use the kernel-mode HTTP stack (HTTP.sys), IIS 6.0 can share port 80 with other self-hosted WCF services running on the same machine… HTTP.sys acts as a port-forwarding service, for HTTP (port 80) traffic.
As for TCP performance, I have done this sort of test recently on an HP-UX server (8 Intel Itanium 2 processors 1.5 GHz 6 MB, 400 MT/s bus) and on Red Hat Linux (2 IA-64 1,6 Ghz). I used iperf in order to test TCP performance. I found that speed of TCP exchange is more … Read more
I’m pretty certain, though the memory is deep in the mists of time, that I’ve seen it return zero before, in the situation of massive data transfers where the other end was not keeping up. From memory, in that case, the remote TCP stack buffers had filled up, the stack had notified the local end … Read more
When you access localhost, your /etc/hosts file will tell your computer not to look any further and redirects you to your own computer. When you access the local IP adress, your computer will ask the router to fetch the data, and your router will then point back to your computer.
This may be caused by TCP simultaneous connect (mentioned on this post to LKML, see also here). It’s possible for a program looping on trying to connect to a port within the dynamic local port range (which can be seen in /proc/sys/net/ipv4/ip_local_port_range),to succeed while the server is not listening on that port. On a large … Read more
Try scapy. It is a very powerful program for packet inspection, manipulation and creation. You can use it to build your own tools.
I think you need to change your max file descriptors. I have run into the same problem on one of my development VMs before and needed to change the file descriptors max, not anything with inotify settings. FWIW, your program runs fine on my VM. ·> ulimit -n 120000 But after I run ·> ulimit … Read more
The interface/API presented to you the user(programmer) of these protocols are: UDP Message oriented, you have an API (send/recv and similar) that provide you with the ability to send one datagram, and receive one datagram. 1 send() call results in 1 datagram sent, and 1 recv() call will recieve exactly 1 datagram. TCP Stream oriented, … Read more
NOTE : Answers are framed without having any background in Python, but, the questions are irrelevant to language, to be answered. What are these queued connections? In simple words, the backlog parameter specifies the number of pending connections the queue will hold. When multiple clients connect to the server, the server then holds the incoming … Read more
That thread “Best way to reliably detect that a TCP connection is closed“, using net.Conn for ‘c‘ (also seen in utils/ping.go or locale-backend/server.go or many other instances): one := make([]byte, 1) c.SetReadDeadline(time.Now()) if _, err := c.Read(one); err == io.EOF { l.Printf(logger.LevelDebug, “%s detected closed LAN connection”, id) c.Close() c = nil } else { … Read more