A flaw in the implementation of the UDP protocol for Memcached servers can allow anyone to launch a massive Distributed Denial of Service (DDoS) attack with little effort. The problem was first discovered by the 0kee Team from China, which published a paper about it (pdf). This past week, security researchers at content delivery network (CDN) specialist Cloudflare […]
According to the new market research report “Top 10 SDx and Networking Technologies (SDN & NFV, Software-Defined WAN, V-CPE, Wi-Fi-as-a-Service, Software-Defined Storage, Software-Defined Security, CDN, Software-Defined Data Center, Network Analytics, Unified Network Management)”, the market is expected to grow at a significant rate between 2015 and 2020/2016 and 2021. The growth of this market is propelled by […]
The New Year is traditionally a time of new resolutions, optimism, and a desire to take our careers to the next level. In the world of cyber security, that may mean wanting to take on new responsibilities, a switch to a new company, or perhaps even your first job in this field. Whatever your goal, […]
Comptia announced that they are updating the version of the Network+ exam from N10-006 to N10-007. Networkel released a full video bootcamp that covers all of new topics in N10-007 exam. This course is designed to help prepare you for the CompTIA Network+ N10-007 certification exam (the latest version) and covers the five domains for the Network+ N10-007 : 1.0 […]
Networkel published “CCNA Configuration Labs on Packet Tracer” course on Udemy. With this great course you have the chance to be a “configuration hero” for Cisco devices ! ( Click here to get the training now ) Packet tracer labs course includes the most important configuration examples that you can face on CCNA Lab Exams and in […]
Most of us using mobile devices such laptops, tablets, phones etc. And today, Wireless LAN ( WLAN ) is a very important part of network design. Here is a simple topology example for Wireless LAN ( WLAN ). Simply clients are connected to APN ( Access Points ) on wireless, and APN’s are connected to our network […]
Let’s do some routing and we are getting started with EIGRP : Enhanced Interior Gateway Routing Protocol. First we need to answer the question “what is eigrp” ? EIGRP is a dynamic routing protocol and provides us some great features. It uses “DUAL” algorithm to find the best path which is found by Dr. J.J. Garcia-Luna […]
PSTN voice calls require 64 kbps bandwith, VOIP voice calls require 8 kbps bandwith. Here is a good entry for “why we use VOIP (Voice Over IP) ? ” question. VOIP is a great way for the corporates to make their calls really cheaper way and to keep their networks flexible. Let’s see a voip topology […]
It’s time to take a look at VLAN trunking protocol ( VTP ). VTP is a protocol that provides VLAN configuration to spread to the whole network. Using the Layer – 2 frames, VTP provides us to change VLAN names, manage VLANs, adding or deletin VLANs etc. First , all switches has a […]
HSRP has a brother whose name is VRRP ! As you know we told that HSRP is a Cisco proprietary protocol. The difference between VRRP and HSRP is this, VRRP is an industry standard. There are just some terminology changes and a little bit configuration differences between them. Let’s check it. – We are using Active […]