Linux, Windows, Security, Programming, Network Tutorials
New comers to the Linux generally asks for what is the purpose and usage of the /etc/hosts file. /etc directory holds system and service related configuration. hosts file is used to store host name or DNS to IP address resolution. It provides easy way to match a host or DNS name with an IP address. List Current … Read more
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 … Read more
Ping is a very popular term used by the system or network administrators. Ping means checking the given remote system whether it is up. A ping is a simple tool which uses ICMP protocol to check remote host. Some times ping port can be used with similar intentions. In this tutorial, we will look at … Read more
Computer networking provides a lot of features for remote usage. But remote access may have some problems. Computer networks provides some basic tools in order to check and detect these problems. In this tutorial we will look some basic ping test in order to check network status. ICMP Internet Control Message Protocol is a network … Read more
Nmap is popular tool used by pentesters, system administrators and network administrators. Nmap provides a lot of features for free. In this tutorial, we will look host discovery features and options of nmap. Discover with Ping Scan One of the basic usages for Host discovery is Ping scan. Ping uses ICMP protocol to communicate with … Read more
Nmap is the most popular tools used in penetrations test or assessments for network scanning. Nmap have another features like listing some basic vulnerabilities and protocol related details. We will look Nmap features in fast way. For more detailed information read following tutorial. Nmap Tutorial Target Selection Target is the remote system nmap will scan. … Read more
Linux mtr command provides both functionality of traceroute and ping commands. mtr can provide reports and xml, json, csv output. There is also Gtk interface provided for mtr . Interactive Traceroute One of the simple use case for mtr is providing the remote hostname or IP address we want to traceroute. This will open a new interactive window which shows each … Read more
Linux is a command-based operating system. Most of the things are done in the command-line environment bash. In this tutorial, we will look at popular and useful commands used by Linux system administrators and users. You can access detailed tutorials simply clicking links below. tr tr command is used to translate or delete characters in the … Read more
Linux network stack is very powerful. Network stack provides a lot of functionalities where most of the enterprise network products can not offer. Here we will look basic and everyday network administration commands. Check Network and Internet Connectivity Network connectivity can be checked easily with ping and telnet tools. One method to check internet connectivity … Read more
Windows firewall is a useful mechanism which is used to control network traffic and ports. There are different ways to manage Windows firewall like GUI, Powershell and MS-DOS. Today we will look in detail how to manage windows firewall from command line with a popular tool named netsh . Netsh is a built-in tool which exists … Read more