RHCE (Red Hat Certified Engineer) is a certification from Red Hat company, which gives an open source operating system and software to the enterprise community, It also gives training, support and consulting services for the companies. RHCE Exam Preparation Guide This RHCE (Red Hat Certified Engineer) is a performance-based exam (codename EX300), who possesses the additional skills, knowledge, and abilities required of a senior system administrator responsible for Red Hat Enterprise Linux (RHEL) systems. Important: Red Hat Certified System Administrator (RHCSA) certification is required to earn RHCE certification. Following are the exam objectives based on the Red Hat Enterprise Linux 7 version of the exam, which will going to cover in this RHCE series: Part 1: How to Setup and Test Static Routing in RHEL 7 Part 2: How to Perform Packet Filtering, Network Address Translation and Set Kernel Runtime Parameters Part 3: How to Produce and Deliver System Activity Reports Using Linux … [Read more...] about RHCE Series: How to Setup and Test Static Network Routing – Part 1
Red hat software collections
Monitorix is an open source, free and most powerful lightweight tool designed to monitor system and network resources in Linux. It regularly collects system and network data and display the information in graphs using its own web interface. Monitorix allows to monitor overall system performance and also help in detecting bottlenecks, failures, unwanted long response times and other abnormal activities. Monitorix – Linux System and Network Monitoring Tool It is written in Perl language and licensed under the terms of GNU (General Public License) as published by the FSP (Free Software Foundation). It uses RRDtool to generate graphs and display them using web interface. This tool is specifically created for monitoring Red Hat, CentOS, Fedora based Linux systems, but today it runs on many different flavors of GNU/Linux distributions and even it runs on UNIX systems like OpenBSD, NetBSD and FreeBSD. The development of Monitorix is currently in active state and adding new features, new … [Read more...] about Monitorix 3.10.1 Released – A Lightweight System and Network Monitoring Tool for Linux
Introduction Note: Our best Linux distro for beginners feature has been fully updated. This article was first published in January 2014.For those folks dipping their toes into Linux waters for the first time, the choice of various distributions or 'flavours' of Linux can be truly overwhelming, especially if you're not sure what to look for.In the early days of Linux, choosing a distribution (distro) was much simpler. You usually selected one you had heard about or with which you had a small amount of experience. There were also far fewer choices beyond Red Hat Linux, Debian and Slackware. While you can still make a choice based on these criteria, the sheer number of Linux distros available now, and their ever vocal fan bases, makes it difficult to settle on one and get started.So let's ignore those voices altogether, and add one of our own. We've deliberately shied away from the popular mainstream distros here, as we didn't just want easy-to-use distros. Instead, we've selected … [Read more...] about What is the best Linux distro for beginners?
In 1972, Carl Sagan was preparing to send humans into space. The Pioneer missions were unmanned, sure—but NASA had asked Sagan to design a depiction of Earth's inhabitants for the trip, just in case the spacecraft ran across some aliens. He designed two nude figures with the help of his wife, Linda Salzman Sagan, and his friend Frank Drake. Linda drew the woman to have Asian features, and the man African, according to Carl’s memoirs—though both ended up looking suspiciously European, with haircuts characteristic of the 1970s. Not unlike Sagan himself. The Sagans were encountering an old problem. Any time the brains behind an encyclopedia (or a SETI mission) need to represent humanity, they have to somehow encompass the whole of the species in a single form—a type specimen, as biologists would call it. Which is why the editors of the “human” entry on Wikipedia were having such a hard time in 2003. The crowdsourced encyclopedia, in theory, offers a … [Read more...] about How Wikipedia Portrayed Humanity in a Single Photo
In the data center world, large capacity Storage Area Networks (SAN) have become the minimum standard. As cloud providers and virtualization also continue to make massive impacts in the technology world, the need for even more SAN storage space has become evident. Most SAN hardware is comprised of a minimalistic controller (or set of controllers) and a large collection of high capacity drives all configured to support high amounts of data availability and integrity. Many of these specialized products are made by big name vendors such as Netapp, Dell Equalogic, HP Storageworks, or EMC and have price tags attached to them that only the largest of enterprises can afford. Realistically, these devices are nothing more than large hard disk arrays with a controller providing the space of those hard disks out to networked clients. Many technologies have existed over the years that provide this functionality or similar functionality at a substantially cheaper price point. The Debian … [Read more...] about How to Setup iSCSI Server (Target) and Client (Initiator) on Debian 9