How To Flush DNS Cache on Linux and Windows?

omid Server September 5, 2022
The DNS cache may fail for various reasons, including network attacks or various types of viruses. When this happens, the IP address becomes problematic for certain popular websites. For example, instead of going to www.google.com,…
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How to Use Fail2ban to Secure SSH on CentOS 7

omid CentOS September 4, 2022
This tutorial will teach you how to install Fail2Ban on CentOS 7. One of the best ways to increase the security of your CentOS 7 server is to install this tool. No server is completely…
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How to Set DNS Nameserver on Ubuntu 20.04

omid Domain, Ubuntu September 4, 2022
DNS translates text-based domain names into numeric IP addresses. By default, most networks are configured to work with the DNS servers provided by the Internet service provider. However, you can change the DNS Nameserver using…
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How To List Hard Disk Drives on Linux?

omid Linux September 4, 2022
If you are a server administrator, you should check the status of your disks. For example, by listing the disks, you can find out whether their space is full or empty. Basically, whenever your disk…
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How to Change Login Screen Background of Ubuntu

omid Ubuntu September 3, 2022
The background of the Ubuntu login page is not something we pay much attention to. However, you may be tired of the static image of this section and want to change it. You may think…
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5 Useful Performance and Network Monitoring Tools for Linux

omid Linux September 3, 2022
If you are a SysAdmin dealing with Linux operating system, you need to have useful monitoring tools to monitor your system performance. Linux monitoring tools are very important in the work of a system administrator…
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How to Install Enlightenment on Ubuntu

omid Ubuntu September 1, 2022
Enlightenment is used in our system (PC/Laptop) to provide the smallest information about the system. It also offers an advanced graphical interface without compromising or slowing down performance. Enlightenment tools are used to maintain important…
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How to Install NTP Server and Client on Ubuntu

omid Server August 28, 2022
An NTP server is a network time protocol. NTP is responsible for synchronizing system time and date to prevent communication problems in a large global network. You may have encountered a message with the content…
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better for programming

Linux or Windows or Mac is better for programming

Erfan Programming August 23, 2022
Many people use Windows as their main computer operating system. However, if you are new to programming, you may see many references to Linux and Mac by experts in the field. Linux is a very…
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An introduction to Linux Access Control Lists

omid Linux August 17, 2022
The security category is particularly important in setting up all kinds of sites, to the extent that many site managers bear huge costs to ensure the security of their databases. In common language, one of…
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