Category Archives: Linux (Ubuntu)

How to upgrade LXD VMs powered by Ubuntu/Debian or CentOS Linux

How to upgrade LXD VMs powered by Ubuntu/Debian or CentOS Linux
I run over 10+ LXD VMs powered by CentOS Linux 7 and Debian/Ubuntu Linux. How do I upgrade all VMs automatically or on demand using Ansible tool?
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Download of The Day: Fedora Linux 26

Download of The Day: Fedora Linux 26
Fedora 26 with KDEFedora Linux version 26.0 has been released ( jump to download ) after many months of constant development and available for download in various media format. Fedora 26 is a free and open source operating system includes various new features such as GCC 7, Golang 1.8, Python 3.6, DNF 2.0, OpenSSL 1.1.0 and more. Fedora 26 runs on both ARM servers and desktop boards too.
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How to install PHP 7.x as PHP-FPM & FastCGI for ISPConfig 3.1 with apt on Debian 8 and 9

Zabihah Halal Vitamins
How to install PHP 7.x as PHP-FPM & FastCGI for ISPConfig 3.1 with apt on Debian 8 and 9
This tutorial shows how to install PHP 7.x as a PHP-FPM and a FastCGI version on a Debian Jessie or Stretch server from the Debian PHP Package maintainers site directly.

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How to Install ReportServer on CentOS 7

Zabihah Halal Vitamins
How to Install ReportServer on CentOS 7
ReportServer is a free and open source business intelligence (OSBI) platform with powerful reporting and analysis tools. It gathers data from multiple business touch points and generates different reports from the data. In this tutorial, we will install ReportServer on CentOS 7 server.

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Linux dd command explained for beginners (8 examples)

Zabihah Halal Vitamins
Linux dd command explained for beginners (8 examples)
Sometimes, while working on the command line in Linux, you may need to perform a copy operation in way that the data/text gets formatted before it’s written at the destination. A simple example could be to copy text from a file and write the case-changed version (lower to upper, or upper to lower) to the destination file.

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How to fix IPMI KVM JAVA BMCMD5withRSA and is treated as unsigned error

How to fix IPMI KVM JAVA BMCMD5withRSA and is treated as unsigned error
Like any good sysadmin, I kept my servers and desktop side up to date and patched all the time. However, recent Java updates have broken my IPMI KVM Java Applets on Dell, IBM, HP, Supermicro and FreeNAS mini servers. You will get an error that read as follows:

Unsigned application requesting unrestricted access to system. The following resource is signed with a weak signature algorithm MD5withRSA and is treated as unsigned.

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Software Defined Networking (SDN) – OpenFlow and OVSDB connection

Zabihah Halal Vitamins
Software Defined Networking (SDN) – OpenFlow and OVSDB connection
This article is based on OpenFlow and OVSDB connection between SDN controller and OpenFlow-based switches and provides details on connection lifecycle. We will use open source SDN controller i.e. Opendaylight (ODL) Carbon release and OpenFlow virtual switch i.e. OpenVswitch (OVS) version 2.6.0 to describe OVSDB and Openflow connection.

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Linux Csplit Command Explained for Beginners (6 Examples)

Zabihah Halal Vitamins
Linux Csplit Command Explained for Beginners (6 Examples)
While working on the command line in Linux, you may find yourself in situations where-in you need to split a file into multiple parts. If you are already looking for a way to do this, or simply want to know how this can be done, you’ll be glad to know there exists a tool – dubbed csplit – that’s built for this purpose.

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How to Install Apache Cassandra on CentOS 7

Zabihah Halal Vitamins
How to Install Apache Cassandra on CentOS 7
Apache Cassandra is a free and open source distributed NoSQL database management system. It is used to store large data in decentralized highly available clusters. In this tutorial, we will be installing Apache Cassandra on CentOS 7 server.

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How To Install Gibbon on Ubuntu 16.04

Zabihah Halal Vitamins
How To Install Gibbon on Ubuntu 16.04
Gibbon is a free and open source web-based Educational Management system that can be used to solve teachers and students daily problems. Gibbon is very flexible, extensible and themable application with many features, including online application forms, messenger, planner, external assessment, and much more. In this tutorial, we will go through step by step installation of Gibbon on Ubuntu 16.04 server.

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