Technical or not most of the people know the router word. Those who know the router can understand a different thing from the word. In this tutorial, we will try to explain what is a router in a technical and non-technical way with router functions, router types and router security. What is a Router For? A router is a device which will connect different networks and the internet together. Typical...
IP addresses are the core mechanism of the Computer networks. The IP address is used to specify the host to communicate and transmit data. There is two type of IP address configuration mechanism. Dynamic and Static. In this tutorial, we will examine the static IP address configuration. Static IP Address Static means stable or not changeable, fixed etc. Static IP addresses set to the host or interface and do not change during...
Nmap tool provides popular ports list as a database where this list is also used in network and service scans. Here is the list but before we will look the command which will list ports according to the popularity. Nmap Top Ports Listing We can use sort command in order to list ports according to their usage frequency. The nmap port or service database located at /usr/share/nmap/nmap-services . We provide -k3 which specifies...
Windows operating system provide ipconfig command for network related administration like show ip address, request IP address from DHCP set IP address etc. In this tutorial we will look how can we release and renew IP address. For more information about ipconfig command read following tutorial. Windows Ipconfig Command Tutorial With Examples To List, Change, Renew IP Configuration Open Command Prompt We can open command prompt in different ways. The easiest way...
As pentester we use a lot of tools during penetration tests. One of the main parts of the penetration test is man in the middle and network sniffing attacks. We generally use popular tool named ettercap to accomplish these attacks. In this tutorial we will look installation and different attack scenarios about ettercap . Install We will look different installation types. Debian, Ubuntu, Kali, Mint:
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$ apt install ettercap-common |
If we want to install...
DHCP is a protocol used to provide network related configuration to the network hosts. Mainly IP address information, network gateway, network mask and DNS server information are provided by DHCP protocol. DHCP have more features like providing boot file over network etc. In this tutorial we will look how DHCP reservation works for Windows Server 2012, Windows Server 2008, Cisco and benefits of using dhcp reservation. More information about DHCP...
ipconfig command provides basic network management functionalities about Windows operating systems like Windows Server and Windows Desktop families. With ipconfig command IP address information about network interfaces can be listed, changed or DNS cache can be flushed. In this tutorial, we will look at these usage examples. Help Ipconfig command uses default Windows style parameters and help syntax. We will use /h for print help. We can see that help...
DHCP stands for Dynamic Host Configuration Protocol. As its name suggests DHCP is used to provide configuration like Ip Address, Network Mask, Dns, Proxy, Bootp, Default Gateway etc. to the host. But the most know and popular usage is distributing IP address. There are broad range of DHCP usage scenarios. In this tutorial we will look IP address distribution of DHCP with an example. Phases DHCP IP address assignment is...
Checkpoint, Palo Alto, Cisco ACS and others, all of them are enterprise, popular and good firewalls. But all of them requires some price to pay. Are there any free alternative to these enterprise firewalls? Yes there are a lot but most of them is not a competitor for them. Pfsense is the most advanced, powerful, popular alternative to these firewalls. Pfsense is not too much advanced like them but provides...
We have a lot of computer in our network. Our network speed is not too much. Sometimes especially in mornings our internet connection slows down. How can solve this with some dns related tricks? Dns is one of the mostly used network protocol. It can effect the internet speed. Making some optimizations will develop your internet experience. Caching is to hold resolved dns queries in our dns server. There are...
