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...
Network Address Translation a.k.a. NAT is a process or technique used to change IP address and TCP port numbers by an intermediate device like firewall, router, modem etc. There are different use cases for NAT but the most popular one is to use a single WAN IP address for multiple servers and client which is located LAN. Topology NAT has the following topology in general. NAT will occur on the...
We can determine Linux system IP address in different ways. IP address is used to communicate over network and can be get and set in different ways. In this tutorial we will use Ubuntu distribution but given examples and commands will work for all of the different Linux distribution like Fedora, CentOS, Debian, Kali, Mint, RHEL etc. Hostname Command IP Address hostname command is mainly used to show or set...
In corporate networks or internet works on dominantly on IP protocol. IP protocols have two versions. Most popular default one is IPv4 and other next generation by not so widespread version is IPv6. IPv6 have a lot of advantages against IPv4 but as you know changing and infrastructure through world wide is not so easy job. Now our question is what is Network Address Translation simply NAT. NAT Example In...
Sometimes I need external IP address of system I am logged on. The general solution is to use browser and search for “what is my address” . And magically google shows the external IP. But if you have no chance to use browser or especially GUI there must be an alternative for this. Here is a practical solution for this. Using text based browser with simple URL gives the correct...
