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BSD

Firewalling with OpenBSD's PF packet filter

Post date: November 27, 2006, 02:11 Category: Network Views: 7436 Comments
Tutorial quote: The tutorial is about firewalls and related functions, with examples from real life with the OpenBSD project's PF (Packet Filter). PF offers firewalling, NAT, traffic control and bandwidth management in a single, flexible and sysadmin friendly system. Targeted at the seasoned or aspiring network administrator, this half day tutorial manuscript will give you some ideas about how to control your network traffic the way you want - keeping some things outside your network, directing traffic to specified hosts or services, and of course, giving spammers a hard time.

Previously hosted at http:/www.bgnett.no/~peter/pf/, but moved to its present location due to some odd technical difficulties at bgnett.no.
Debian

Easy SNMP Server and Client Configuration Steps

Post date: August 2, 2006, 18:08 Category: Network Views: 3367 Comments
Tutorial quote: Simple Network Management Protocol (SNMP) is a widely used protocol for monitoring the health and welfare of network equipment (eg. routers), computer equipment and even devices like UPSs. Net-SNMP is a suite of applications used to implement SNMP v1, SNMP v2c and SNMP v3 using both IPv4 and IPv6.
FreeBSD

FreeBSD Networking Basics

Post date: April 13, 2005, 00:04 Category: Network Views: 3603 Comments
Tutorial quote: Beginners to Unix-like operating systems such as FreeBSD are often stymied by their network settings. Sure, the install process may have set up your NIC for you, but where do you go to view these settings, and how do you proceed if your NIC stops working? Since networking is such an integral part of computing, this article will demonstrate how to verify, configure, and optimize your network settings.
Debian

Aggregating network interfaces

Post date: February 12, 2006, 07:02 Category: Network Views: 3017 Comments
Tutorial quote: Using more than one hard drive to achieve better performance and fault tolerance is very common. Less well known is that it's also possible to aggregate more than one network interface into a single logical interface. In Linux, this is handled by the bonding driver. Benefits of doing this are much the same as the benefits of aggregating discs using RAID: if one device dies, your server carries on working and by using two devices in parallel, performance can be improved.
Debian

Upgrade multiple debian systems with Approx

Post date: June 15, 2009, 06:06 Category: System Views: 4456 Comments
Tutorial quote: Approx is an HTTP-based Debian archive server. It fetches packages from remote repositories on demand, and caches them for local use.Approx saves time and network bandwidth if you need to install or upgrade Debian software for a number of machines on a local network.
Ubuntu

Network Bandwidth Monitoring Tools

Post date: December 21, 2006, 17:12 Category: Network Views: 8643 Comments
Tutorial quote: This is list of Network Bandwidth Monitoring Tools for Ubuntu Users includes bmon bwbar,bwm,bwm-ng,iftop,iperf,ipfm speedometer,cbm,ibmonitor,pktstat,mactrack,MRTG,Cacti.This tutorial also contains how to install and configure each tool with examples and screenshots.This is very useful for all Linux users and admins
Linux

Change your Network card MAC ( Media Access Control) address Using macchanger

Post date: January 4, 2007, 20:01 Category: Network Views: 3189 Comments
Tutorial quote: Media Access Control address, a hardware address that uniquely identifies each node of a network. In IEEE 802 networks, the Data Link Control (DLC) layer of the OSI Reference Model is divided into two sublayers: the Logical Link Control (LLC) layer and the Media Access Control (MAC) layer. The MAC layer interfaces directly with the network medium.Consequently, each different type of network medium requires a different MAC layer. On networks that do not conform to the IEEE 802 standards but do conform to the OSI Reference Model, the node address is called the Data Link Control (DLC) address.
Linux

Build a Home Terabyte Backup System Using Linux

Post date: December 1, 2005, 01:12 Category: Miscellaneous Views: 3240 Comments
Tutorial quote: A terabyte-plus backup and storage system is now an affordable option for Linux users. This article discusses options for building and configuring an inexpensive, expandable, Linux-based backup server.
Unix+clones

Benchmarking BSD and Linux

Post date: June 18, 2005, 22:06 Category: Benchmarks Views: 3671 Comments
Tutorial quote: These benchmarks are the result of my scalable network programming research. My interest in this area is to see how scalable and fast network applications can be on standard PC hardware.

I have done most of my research on Linux 2.4, 2.5 and 2.6 kernels using a home-grown distribution I affectionately call "Leanux". I have experimented with several APIs and methods to try and get the most scalability and performance out of a web server. The ultimate goal, however, is to demonstrate scalability by surviving a Slashdotting.
eBox

Using eBox As A Gateway: Firewall, Traffic Shaping, HTTP Proxy And More

Post date: June 11, 2010, 12:06 Category: Installing Views: 5636 Comments
Tutorial quote: eBox Platform is the Linux small business server that allows you to manage all your network services like firewall, DHCP, DNS, VPN, proxy, IDS, mail, file and printer sharing, VoIP, IM and much more. These functionalities are tightly integrated, automating most tasks, avoiding mistakes and saving time for system administrators. This article will show you step by step how to use eBox as a Gateway, featuring network configuration, load balancing between two Internet connections with WAN failover and multigateway rules for policy routing, traffic shaping, DHCP and DNS cache for the LAN network and HTTP proxy with different content filtering policies and antivirus.
Web-based applications and online marketing solutions - LumoLink