RJ45 is a type of cable connector which is mainly used in computer networks. RJ45 is mainly used for ethernet networking which is used to connect different type of devices like a switch, hub, PC, router, firewall to each other.RJ45 is the most known and popular connector type in the IT world. RJ Stands For Registered Jack Well, where the RJ comes from. RJ means Registered Jack and standardized network...
Local Area Network is a computer network where computers in the same location or group are connected together and shares common communication lines. Local Area Network is mainly expressed as LAN which is a very popular term in computer network and IT. LAN Components LAN will have very simple topology where some equipment or components are used. In order to connect multiple computers in a single LAN, we can use...
Today Firewall is depicted as the main component of the security and networks. Firewalls provide a lot of different operations and features. In the old days, the firewall was simply used to block or allow some ports and management of the NAT. In these days there are a lot of different threats where the firewall is used to detect and stop these threats. Firewall Features Today modern firewall’s provides a...
Zenmap is an free and open source GUI designed to be used with nmap . Zenmap is multiplatform tool which supports Linux, Ubuntu, Mint, Kali, Fedora, CentOS,.. , Windows, Mac OS X, BSD etc. . nmap is very powerful tool for network scanning and vulnerability discovery but it is completely command line based. Zenmap can be used by novice users to scan network and discover vulnerabilities. Download Windows Windows version can be downloaded...
Network switches or Layer 2 technology Ethernet protocol uses MAC addresses in order to transfer frames between systems. MAC addresses are 48 bit value. This 48 bit value contains the device manufacturer ID as the first 24 bit. In this tutorial we will learn how to look, search and find the Organizationally Unique Identifier in Linux distributions like Ubuntu, Debian, Mint, Kali, Fedora, CentOS, RHEL etc. Mac Address As stated in...
Address Resolution Protocol (ARP) is auxiliary protocol used by Internet Protocol (IP). ARP is defined with RFC826 and gained main stream over computer networks. ARP is used to resolve IP address with MAC or hardware address of the network interface. As we know MAC address is used to identify nodes in a local network. How ARP Works ARP resolution works very simple way. The source creates requests to get MAC...
FortiGate is successful Next Generation Firewall which provides a lot of features for to day needs. The Forti family have products from WAN optimizer to APT sandbox. In this tutorial we will look how to setup FortiGate or FortiOS for the first time. We assume we have all ready downloaded and imported into VMware or similar virtualization platform. Login From Console or CLI First we need to login from cli....
Cisco Provides different level of certifications for its products and general network topics. We have all ready examined CCNA certifications in the following tutorial. What is CCNA or Cisco Certified Network Associate? Cisco certification exams mostly depends on practical experience. So a person who want to get certified needs practical experience. Here is a list of ways to get practical experience. At work Rent remote labs Using GNS3 similator Using...
Arp is a protocol used to determine host IP addresses from their physical MAC or Ethernet address. Windows operating systems provides arp command in order to manage arp related information. With arp command we can display, add and remove arp entries in ARP cache. ARP Cache ARP and IP entries are hold in ARP cache every time we want to communicate over network and need IP address we look to the ARP...
Cisco is very popular vendor in the IT network field. Cisco provides a lot of different type of solutions from access switch to SDN firewall. Cisco is penetrated to the network device market over the years. This will made a lot of network guys play with Cisco devices. Cisco create CCNX series certification over years. Here X may mean Associate, Professional. There is also CCIE certification which is one of...
