Definition of Networking
What is server networking?
Server networking is the process of joing one or more servers to distribute tasks.
|
|
Networking
|
|
TCP and Linux Pluggable Congestion Control Algorithms
Every time you wish to transport data in a reliable way, you probably use TCP (or your car, but let's stick to networks). TCP is able to transport large amounts of data in the correct order over unreliable network links. The protocol keeps track of sent data, detects lost packets, and retransmits them if necessary. This is done by acknowledging every packet to the sender. Basically, this is how TCP works.
Read the Article
|
Measuring TCP Congestion Windows
The Linux kernel has internal data structures that keep track of active TCP connections and their parameters. This is required, since most TCP connections have a long lifetime (long being tens of seconds, minutes, or even hours). The longer a connection lasts, the more changes on its path can happen. Other TCP connections might throttle the up- or downlink. The link might get disconnected, rerouted, or re-established. Packets might be lost or reordered.
Read the Article
|
Measuring Congestion Windows of TCP Senders
First of all, there might be different operating systems involved. This means that two different TCP/IP stacks talk to each other, with both sides having their own ideas on how to evaluate the quality of the data link. Then, there are the different TCP congestion algorithms, with some of them being valid only for the sender, and not for the receiver. We will now concentrate on the sender side, and insert some code to look at the TCP connection. We do this in the same way we did for the receiver. Our C program will get a lot easier, since we don't need to write a daemon process - we just need a client that grabs some data, opens a connection to the receiver, and starts sending packets.
Read the Article
|
Branded VPN Deployment and Seamless Remote Management
In this article, I will discuss a VPN system that overcomes these technical challenges while also providing an easy-to-use, attractive interface to the user. The solution is based on multiple open source tools. These open source projects are OpenVPN, OpenVPN GUI, Nullsoft Scriptable Install System (NSIS), and TightVNC (see Resources). TightVNC is added to provide seamless remote management that is not provided by the VPN solution itself.
Read the Article
|
Achieving Wireless Security with Interoperability
Though the concept of an ultra-high level of wireless networking security and information assurance is somewhat opposed to the concept of open interoperability with a wide spectrum of 3rd party vendors' wireless equipment, this paper is intended to show that 3eTI FIPS 140-2 validated and Common Criteria certified wireless equipment are interoperable with multiple vendors' IEEE 802.11-compliant equipment, and that 3eTI solutions are non-proprietary. 3eTI has blazed the trail in marrying the IEEE 802.11i commercial standard for enhanced wireless security with FIPS 140-2 validation requirements per the NIST Cryptographic Module Validation Program (CMVP).
Read the Article
|
Sorting Through the Hype of Ubiquitous Secure Remote Access and SSL VPNs
If I told you that I could give you a car, exactly like the car you already own with the exception that it gets 1,000 miles/gallon and would have no maintenance costs for 10 years, would you start asking me about adding cup-holders? I doubt it-I sure wouldn't. However, if I told you that I could replace your existing remote access solution with one that provides the exact same capability, but has increased deployment flexibility, increased security options, a lower TCO and faster ROI-I am constantly questioned about whether it can provide "ubiquitous" access. The short answer is "No." The real answer is "No. You shouldn't expect it to, don't really want it to and don't really need it."
Read the Article
|
Remote Access VPN and a Twist on the Dangers of Split Tunneling
If you ever want to get a rise out of your ISA firewall VPN administrator, try asking him how you enable split tunneling for your remote access VPN client connections. Split tunneling is a major security risk for any organization that deploys any type of VPN server enabling users VPN remote access to the corporate network. All firewall and security administrators know of the dangers of split tunneling and do whatever they can to prevent this from happening.
Read the Article
|
Enabling Internet Access for VPN Clients Connected to an ISA Firewall
A problematic situation with the ISA Server 2000 firewall was that once a VPN client connected to the ISA Server 2000 firewall, they could not connect to the Internet using their default SecureNAT client configuration.
Read the Article
|
Evolution by Proxy Server
Proxy servers share Internet access at the application level, which means every client program must be individually configured to talk to the proxy server. This is an effective way to allow extremely limited kinds of Internet access, but many organizations found the configuration requirements to be a burden. With the development of Network Address Translation (NAT), organizations could share an Internet connection at the network level, which greatly simplified the process.
Read the Article
|
Getting Linux Online via a Windows Proxy using AnalogX
This document is intended for those of you who are having trouble figuring how to configure PPP networking for your Linux box. Or maybe you found out too late that you have a WinModem, and haven't gotten around to getting a new one. I found a great temporary solution for those of you who want to be able to get online on your Linux box using your other Windows box as a Proxy server, bypassing your PPP networking headaches. This is a great way for you to get online with your Linux box to download the drivers you need to compile/install to get all your hardware in your Linux box running. Then you can break your tether to the Windows box if you want to!
Read the Article
|
|
|
Page: 1 2
Members currently browsing this category:
|
|
