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Iptables and ip6tables are used to established, maintain, and check up on the tables of IPv4 and IPv6 packet filter ideas in the Linux kernel. Several distinct tables may be defined. Each table contains a quantity of constructed-in chains and may also contain person-outlined chains. Let us explore about how to manage a system firewall using Iptables in Linux.Installing IP tablesTo install IP tables, use the following command –$sudo apt-get install iptablesThe sample output should be like this –Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: ... Read More
Have you checked your website’s performance recently? Is it performing well? Or do you need some overhauling to boost its performance? You may be wondering, what is the need when my site is going great. Then you are doing a big mistake, your site may be getting a good response today, but as the time passes it may be lost in the crowd due to the continuous changes in human behavior which affects on search patterns. So, it is important to check your site’s performance in a regular interval, the way you do the maintenance of your favorite car.Whether you ... Read More
Since its arrival in March 2017, the new updated version of Windows Excel has grabbed good words of mouth from the global users. It is not new that Microsoft always tries to surprise its users by adding exciting features to its updated applications, this version no 1703 of MS Excel also stands tall in that. The introduction of Dubai Font style and integration of Bing search engine are some few exciting features from the list. Let’s discuss them in a bit detail.Combine BinaryThough, it is not among the newly added features but yet is the improved one than the previous. ... Read More
Wi-Fi is now one of the most useful and basic requirements- right along with Electricity and Running water, and yet it’s also one of the most frustrating features at home. There are few things more dreadful than slowly watching a web page load as you’re working to meet a deadline. Or just chilling at home, watching a movie on Netflix, when the video constantly pauses to buffer. Internet problems constantly plagued by slow speeds, bad reception, and other Wi-Fi issues. But there are some easy ways you can take to ensure better, stronger Wi-Fi throughout your house.Better Router PlacementThis is ... Read More
Most of us have heard of Google Glass by now and are aware of the potential things it can do, in spite of it being in a developmental stage. Google glass is a hi-tech eyewear gadget that is an augmented reality device as well as a compact hands-free computer. For example, few people put it on while doing extreme stuff like skydiving and share their point of view experience with their friends and kin.Minuscule, Yet Power-Packed HardwareGoogle Glass has built-in features like Bluetooth, Wi-Fi, GPS, speakers, a camera, microphone, touchpad and maybe even a gyroscope to detect head movements.Then there’s ... Read More
Python is a totally free language to download, use, and code. Its commands are mostly in simple English. This makes it easy to remember and write commands. The code is readable and with a little knowledge, a developer can learn many things just by looking at the code.It has standard libraries that offer a lot of functionalities which lets you implement complex applications with ease. Python was designed with the newbies in mind. The use of white space and common expressions has eliminated the need for tedious variable declarations and ugly braces.Your First Steps in ProgrammingPython can be your starting ... Read More
There are methods or functions which are useful for directories and file operations.Methods for the directory.TypeName: System.IO.DirectoryInfo Name MemberType ---- ---------- Create Method CreateObjRef Method CreateSubdirectory Method Delete Method EnumerateDirectories Method EnumerateFiles Method EnumerateFileSystemInfos Method Equals Method ... Read More
In this problem, we are given a number n. Our task is to print patterns with decreasing to 0 or negative then increasing back to the number.Let’s take an example to understand the problem,Input: n = 12 Output: 12 7 2 -3 2 7 12To solve this problem, we will use recursion and call the function after each update. The track of update is kept using the flag variable which tells the function to increase or decrease the number by 5.ExampleThe below code gives the implementation of our solution, Live Demo#include using namespace std; void printNextValue(int m){ if (m > 0){ cout
In this problem, we are given a string and an integer n. Our task is to print the given string in a wave pattern of n lines.Let’s take an example to understand the problem, Input: Tutorial n = 3 Output: T r U o i s t lWave patterns are printed by printing each character of the string one by one in the next line and tab space away from the next element till ... Read More
To display the directory content, Get-ChildItem cmdlet is used. You need to provide the path of the directory or if you are in the same directory, you need to use only Get-ChildItem directly. In the below example, we need to display the contents of the D:\temp directory.When Get-ChildItem command is run outside of this directory then the path of the directory should be provided. This is called the absolute path.PS C:\> Get-ChildItem D:\Temp\CommandWhen this command is run directly within the directory then simply run this command. This is called a relative path.PS D:\Temp> Get-ChildItem OutputDirectory: D:\Temp Mode ... Read More