MikroTik Routers and Wireless

Learning Portal - Juniper Learning Portal - Fast Track The JNCIS-ER is designed for networking professionals with advanced knowledge of, and experience with, Juniper Networks Junos-based routers and their deployment in the enterprise. The JNCIS-ER exam tests for a wider and deeper level of knowledge than does the JNCIA-ER exam. Sources of question content include all Enterprise Routing training courses, the Junos documentation set, on-the-job product experience, as well as Internet technologies and design principles considered to be common knowledge at the Specialist level. The JNCIS-ER certification is valid for two years. Recertification is achieved by passing the current version of the JNCIS-ER exam. Exam topics include: Junos policy, BGP for enterprises, IGP conversion, Layer 2 services, Layer 3 services overview, stateful firewall and NAT/PAT, IPSec VPNs, class of service, branch office connectivity, router management. Exams At-A-Glance

BridgeWave: Point-to-point Wireless Gigabit, Wireless Bridge, Wireless Backhaul, Wireless Microwave How to Build a Simple Wireless Authenticated Gateway (SWAG) Using OpenBSD :: Hack In The Box :: Keeping Knowledge Free By: Rosli Sukri Now, without spending a lot of money you to can build an authenticated gateway solution to verify your WIFI users. First and foremost you need to get your hands on the coolest free BSD system for firewalls and security devices. In this example I will be using OpenBSD3.6 stock standard as a build and a base system (but I guess you could use FreeBSD5.3 – me thinks the newer FreeBSD are getting a bit bloated but the background fscking, fscking rocks dude!) Once you have installed your neighborhood OS in your server (go ahead and install all the packages from the OpenBSD installation CD, heck I have 40G worth of SATA drive on my brand spanking new Dell 1U server so I don't really care) you only need to change a couple of files within your /etc directory before you can start rocking. The Setup By the way my rig is a Dell 1U server with 4 NIC cards and a lot of RAM. The ultimate goal is to have 2 internal network segments and 1 uplink to the Internet. /etc/rc.conf.local 1.) 2.)

Router and Switch Security Overview Router and Switch Security Overview "You are only as secure as your weakest link." Network security professionals often encounter this adage. Present-day networks deploy security measures such as firewalls, intrusion detection systems (IDS), virtual private networks (VPN), and antivirus software to fortify the network. While an attack on a web server can just render it unoperational, an attack on the edge router can cut off the entire network from its users. Throughout this chapter, the term router refers to Cisco IOS-based devices. Securing Cisco Routers The most common causes of security breaches in routers are as follows: Weak passwords— This is the most common cause of security breaches; even encrypted passwords are not secure because IOS uses a simpler and reversible encryption algorithm. Unneeded services— Unnecessary services or features can introduce related vulnerabilities or provide platforms for launching attacks. Cisco Router Passwords Example 8-1. Note Figure 8-1. Figure 8-2. !

Home » RF elements 10 quick tips to make Linux networking easier | 10 Things | TechRepublic.com Linux makes networking simple and secure -- if you know a few tricks. Jack Wallen shares some pointers to help admins knock out various Linux networking tasks with a minimum of effort. Linux makes networking simple and secure -- if you know a few tricks. Jack Wallen shares some pointers to help admins knock out various Linux networking tasks with a minimum of effort. Networking is a must-have on all levels of computing. Note: This information is also available as a PDF download. #1: Make use of your /etc/hosts file The hosts file is used for static host names and offers a quick way to create networking shortcuts. For example, if I use one machine for a backup location at IP address 192.168.1.101, I could enter: 192.168.1.101 backups Now if I have to connect to that machine, say with secure shell, I can just type ssh -v -l username backups to make the connection. #2: Keep out unwanted users with /etc/hosts.deny Yet another helpful "hosts" file is the hosts.deny file. ALL: bad.domain.name

Extralink – EPON – Ethernet Passive Optical Network It provides residential and office users with the ideal solution for sharing an ultra high-speed fiber optical broadband connection. When functioning with GEPON Optical Network Terminal (OLT), the ONT WIFI provides highly-effective GEPON solutions for FTTH network. With Simple management, it is easy for installation and maintenance of GEPON deployment. ONT WIFI is a fiber to the home (FTTH) broadband access equipment type. With built-in 1.25Gbps GEPON fiber interface, the ONT WIFI supports different optic types for WAN and the distance can be up to 20km through the fiber connection. Web interface for OpenWrt and more - X-Wrt.org HP HP FlexFabric 5700 Switch Series The HP Flex Fabric 5700 Switch Series is a family of cost-effective, high-density, ultra-low-latency, Light Layer-3, top-of-rack (ToR) switches, ideally suited for deployment at the server access layer in large enterprise data centers. Product details HP M210 802.11n Access Point Series HP M210 802.11n Access Points are dual-band, single-radio devices supporting high-speed wireless networking at 5 GHz or 2.4 GHz. Product details HP 417 802.11n Unified Walljack Access Device Series The HP 417 Unified Walljack integrates one GbE uplink port, three 100BASE-T wired ports and 802.11n wireless connectivity into a small unit that can be quickly, easily and discretely installed in a standard wall outlet box. Product details HP Network Simulator HP Network Simulator is an ideal Comware v7 learning tool, which allows users to create, configure, and connect simulated devices and networks. HP Network Simulator

OpenDNS From DD-WRT Wiki OpenDNS is a free DNS (Domain Name Server) service which makes internet browsing safer and allegedly faster. By simply using their DNS servers instead of your ISP's you are automatically protected from their list of Phishing websites. However, in order to restrict a variety of adult website content you will need to create a free account with them, register your IP address and select the categories you want restricted (i.e. sexuality, nude, pornography, lingerie, grotesque, etc...). [edit] Basic Setup In order to configure dd-wrt with OpenDNS you need to specify the OpenDNS DNS servers in the control panel. Option 1 - Configure DHCP with OpenDNS DNS server If you want the DNS servers to be queried in the order they're listed rather than randomly: Go to Services tab » Services sub tab » Services Management section » DNSMasq sub section » Additional DNSMasq Options text box, and enter strict-order Apply Settings Option 2 - Configure DNSMasq for OpenDNS DNS forwarding Or