November 2017 – POFTUT

Monthly Archive: November 2017


How To Install and Use Linux Minicom Command Tutorial with Examples?

minicom  is little command line based tool used to connect serial lines. In a more pragmatic definition minicom can be used to connect modems, routers and switch console ports via serial port. Minicom is very similar features and user interface to the TELIX. Install For Debian, Ubuntu, Kali, Mint We can install minicom with the following command for deb based distributions.

Install For Fedora, CentOS, RHEL We can also...

How To Download and Install Nmap For Windows Operating Systems? 0

How To Download and Install Nmap For Windows Operating Systems?

nmap  is a very popular network scanning tool. Windows operating systems like 7, 10, Server are most used operating systems too. But we know that these two popular things do not meet together in most of the time. nmap  is by default provided by most of the Linux distributions like Fedora, Ubuntu, Kali, Mint, Debian, CentOs, RHEL, etc. Installing it in Windows is a bit harder. In this tutorial, we...


How to Add Ssh Keys with ssh-add In Linux?

SSH protocol provides different ways for authentication. Key based authentication is the most secure one. In order to use key based authentication we should store the key in a command place. SSH agents reads keys and uses for authentication with remote system. We can use ssh-add to store keys in a common path. Key Files Public and private keys are store in files according to their algorithm. ~/.ssh/identity  holds RSA version...


How To Pretty Print and Format XML In Command Line Linux?

XML or extensible markup language is popular data structure used to express data in a exchangeable format. It is mostly used for configuration and data exchange between web services. While inspecting some XML in Linux via command line we generally need to print in a more readable and structured way. In this tutorial we will look how to pretty print XML in Linux command line. Xmllint xmllint  is a tool...


How To Bash Concatenate or Add Strings?

Bash provides string operations. We can use different operations like remove, find or concatenate strings in bash. In this tutorial we will look how to add or concatenate strings in Linux bash. Put Variables Side By Side The simplest and easy to understand way to concatenate string is writing the variables side by side. We will write the variables like $a$b . We do not need extra operater or function...


How To Login To Linux with Passwordless via SSH with Key Based Authentication?

Ssh provides secure remote connections to the remote systems. It is defacto protocol used to manage Linux and networking systems remotely via command line. Ssh provides a lot of extra features which makes it useful for different purposes. For example we can copy files to remote and local system via ssh with a secure manner. In order to make things straightforward we can use passwordless key based authentication for ssh...


How To Apt-Get Update, Upgrade, Dist-Upgrade, Full-Upgrade and Their Similarities and Diffirencies

deb based distributions provides apt or apt-get to manage packages interactively and from network repositories. While updating packages update, upgrade or dist-upgrade can be used. But what is the difference between these two commands. In this tutorial we will look this issue. Update updatecommand will simply get the packages information from repositories. These repositories are remote internet sites those provides packages and their metadata. We will get meta data or...


How To Monitor Network Traffic and Statistics with ntop Tool?

ntop is network traffic and statistic monitoring tool. ntopprovides similar philosophy to top command. There is also web based gui which makes it elegant to use. ntop packages are provided by popular distributions like Ubuntu, Debian, Mint, Fedora, CentOs, RHEL etc. Install ntop For Debian, Ubuntu, Kali, Mint We can install ntop with apt like below.

Install ntop For Fedora, CentOS, RHEL We can install ntop tool with the...


How To Install and Upgrade RPM Packages In CentOS, RHEL, Fedora, Mandriva

rpm is the package format used by popular distributions like RHEL, CentPOS, Fedora and Mandriva. We generally prefer to use yum command to install packages from internet automatically and easily. In some cases we may need to install rpm packages solely. In this tutorial we will look how to solve dependency and install rpm package. Linux Rpm Command With Examples Download RPM Package We can get RPM files from different...

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