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Ben Strong's Blog: Google and Microsoft Cheat on Slow-Start. Should You?
Nov 25, 2010 Google and Microsoft Cheat on Slow-Start. Should You? A Quest for Speed I decided a couple of weeks ago that I wanted to build an app, most likely a web app. Being a premature optimizer by nature, my first order of business (after deciding I need to learn to draw) was to find the absolute fastest way to serve up a web page. The Google home page is the fastest-loading page I know of,
HAProxy - The Reliable, High Perf. TCP/HTTP Load Balancer
Quick News Dec, 5th, 2023 : HAProxy 2.9.0 release This release has received a lot of small changes that are difficult to summarize. Most of them were aimed at improving performance and resource usage in general (zero-copy forwarding, QUIC's smaller footprint for closed connections, improved scalability), others focusing on better integration with other components (support for the AWS-LC crypto lib
Open vSwitch
What is Open vSwitch? Open vSwitch is a production quality, multilayer virtual switch licensed under the open source Apache 2.0 license. It is designed to enable massive network automation through programmatic extension, while still supporting standard management interfaces and protocols (e.g. NetFlow, sFlow, IPFIX, RSPAN, CLI, LACP, 802.1ag). In addition, it is designed to support distribution
SubnetCalc
SubnectCalc is a tool to help you to make the network IP addressing on macOS. Downloads Download SubnetCalc last version (2.5) for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM) Download SubnetCalc 2.4 for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM) Download SubnetCalc 2.3 for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM) Download SubnetCalc 2.2
Server Dashboard and Performance Monitoring
Status2K Server Dashboard Status2K is a self-hosted server statistics dashboard that gives you a quick overview of your server farm. You can monitor the performance on any device, even on your smartphone, tablet, or Kindle. One Licence for all your servers Hundreds of hosting companies are using Status2K to easily monitor- and display their server statistics. Unlike competitors, status2K is quick
tinc
Welcome to tinc! Latest stable version: 1.0.36 Latest prerelease from the 1.1 branch: 1.1pre18 Latest news: Version 1.1pre18 released. Check all Address statements when making outgoing connections. Make more variables safe for use in invitations. Allow tinc --force join to accept all variables sent in an invitation. Make sure the stop command works on Windows if tincd is running in the foreground.
kryo.se: iodine (IP-over-DNS, IPv4 over DNS tunnel)
The latest code is on github Latest relase (from 2023-04-17): 0.8.0 Download source / binaries: win32/64 Older downloads available below. iodine lets you tunnel IPv4 data through a DNS server. This can be usable in different situations where internet access is firewalled, but DNS queries are allowed. It runs on Linux, Mac OS X, FreeBSD, NetBSD, OpenBSD and Windows and needs a TUN/TAP device. The b
xSocket
please refer to the xsocket homepage (http://xsocket.org)
Zebedee: Secure IP Tunnel
Zebedee: Secure IP tunnel Stable Version: 2.4.1A (2005/09/06) Development Version: 2.5.3 (2005/09/06) Please note the minor revision to the stable version. This contains a fix for a “denial of service” attack, as well as upgrades to the versions of the compression libraries. Zebedee is a simple program to establish an encrypted, compressed “tunnel” for TCP/IP or UDP data transfer between two syste
Driftnet
[ Home page | Software ] Inspired by EtherPEG (though, not owning an Apple Macintosh, I've never actually seen it in operation), Driftnet is a program which listens to network traffic and picks out images from TCP streams it observes. Fun to run on a host which sees lots of web traffic. In an experimental enhancement, driftnet now picks out MPEG audio streams from network traffic and tries to play
仙石浩明の日記: stone に UDP ⇔ TCP 相互変換機能を実装
stone で UDP と TCP の相互 変換を実装してみた (stone.c 2.3.1.10以降)。 つまり、UDP パケットが届いたら、 その頭にデータ長 (2バイト) を付けて 次図の形式のデータにして TCP セッションへ送信する。 あるいは逆に、 TCP セッションから次図の形式のデータを受信したら、 「データ長」の部分を取り除いて 「可変長データ」の部分を UDP パケットとして送信する。 ┌──┬──┬──┬─≪─┬──┐ │データ長 │ 可変長データ │ └──┴──┴──┴─≫─┴──┘ もちろん「データ長」はネットワーク バイトオーダ (ビッグエンディアン)。 この形式は、 DNS の問合わせ/応答を TCP を使って行なう方法 (RFC1035 4.2.2. TCP usage) と 同じであるので、 # stone -n 192.168.1.1:domain/
Jpcap - a Java library for capturing and sending network packets
Jpcap is a Java library for capturing and sending network packets. Using Jpcap, you can develop applications to capture packets from a network interface and visualize/analyze them in Java. You can also develop Java applications to send arbitrary packets through a network interface. Jpcap has been tested on Microsoft Windows (98/2000/XP/Vista), Linux (Fedora, Mandriva, Ubuntu), Mac OS X
The C10K problem
[Help save the best Linux news source on the web -- subscribe to Linux Weekly News!] It's time for web servers to handle ten thousand clients simultaneously, don't you think? After all, the web is a big place now. And computers are big, too. You can buy a 1000MHz machine with 2 gigabytes of RAM and an 1000Mbit/sec Ethernet card for $1200 or so. Let's see - at 20000 clients, that's 50KHz, 100Kbytes
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