How to install cPanel/WHM on CentOS 7

Posted at December 13, 2016 at 11:30 am by Jithin

In this tutorial we can check how to install cPanel on a CentOS 7 server. Before installing cPanel onto the server perl must be installed. For that, login as root and run the given below command: yum install perl -y The next step is to set a host-name for the server. The host-name must be a full qualified domain name. For example: hostname It is to be noted that the hostname setup must be owned by the user. Next change the directory to /home, to    [...]

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Linux ss Command

Posted at November 11, 2016 at 12:54 pm by Jithin

ss - socket statistics In this tutorial, we will be discussing on how to use the ss command and we will be covering some of the topics on how to check network connections and socket statistics. ss command is a new IP tool command which provides higher information than netstat command. The ss command fetches data from many /proc files in order to provide the information to the user. In case the system has more connections to display then it might take some more time to show the information. Al   [...]

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How to Troubleshoot a DDoS Attack?

Posted at September 8, 2016 at 6:28 pm by Jithin

What is a DDoS attack? DDoS stands for Distributed Denial of Service. It is a variant of the infamous DoS attack. A DoS attack is a type of attack that the attackers stops the service so that the legitimate users also cannot access the service.The attack will be from a single computer system. This is achieved by sending excessive connection requests to a web server. Every server will have a limit on number of requests that can be handled at a time. When the number of requests exceeds this li   [...]

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Best Open Source IP Address Management Softwares

Posted at August 22, 2016 at 11:06 am by Jithin

IP address management softwares are used at organizations where it holds a pool of IP addresses and allocate them to the clients.  This tool helps to track used, reserved, allocated or free IP addresses. I will provide a clear overview on resource usage of IP addresses in an organization as a whole. Using this tool allows for the organization to know which IP address are readily available. IP address management tool prevents the fragmentation of IP addresses usage. System admin working in Local   [...]

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Common Network Protocols and Their Ports

Posted at August 4, 2016 at 5:00 pm by Jithin

There are many protocols while establishing a connection in the internet. According to the type of connection need to be established, the protocols used varies. The protocols define the characteristics of the connection. Let’s see what a protocol is.   Network Protocol Simply, a protocol is a set of rules. A network protocol is a set of rules followed by the network. Network protocols are formal standards and policies made up of rules, procedures and formats that defines communicatio   [...]

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