|By Chris Negus||
|February 28, 2006 09:00 AM EST||
Excerpted in part from Red Hat Fedora and Enterprise Linux 4 Bible by Christopher Negus (Wiley Publishing, 2005)
In its Fedora Core Linux system, the Red Hat-sponsored Fedora Project aims to only include software that is Open Source and free of reasonable patent claims. As a result, at random intervals, an article or mailing list post will exclaim how Fedora sucks because it doesn't have xyz media player, certain file system support, or other favorite that's in some other Linux.
Despite the fact that Red Hat sometimes seems bent on making money, proponents of the free and Open Source software movement can feel relatively safe that no one will hide code or sue them for using Fedora Core. But if not having a piece of software that's in some other Linux (or Windows) system is keeping you from switching to Fedora, then there may be a simple answer. You might just need to know where to look and what to do.
Adding Software to Fedora
Fedora is a great foundation on which to build a free cutting-edge desktop or personal server system. With Fedora Core 4, Red Hat has finally done more with Fedora than make it a testbed for Red Hat Enterprise Linux. It has put tools and projects in place to let outside initiatives package and distribute almost any Open Source software for Fedora.
Of course, you can go straight to a software project site (try Sourceforge.net) to download and build the software you want yourself. But a lot of people prefer to have dependencies already worked out, a central mechanism for tracking bugs, and the ability to manage software with RPM tools. So, they look for software that's already in RPM format.
While the underlying RPM tools and database on a Fedora system are excellent for installing, querying, and removing individual packages, they weren't intended for working with software repositories. For Fedora, the tool of choice is the Yellow Dog Updater Modified more commonly referred to as yum.
There are several features that have made yum such an effective tool for getting and updating the software you use with Fedora:
- Repositories: By configuring yum to look to online repositories for packages you request, you don't need to have the software package you want already on your hard disk or CD. Fedora Core 4 comes already configured to point to online repositories for Fedora Core and Fedora Extras (more on that later). So all you have to do is ask for any packages from those two areas with yum to have the packages you want downloaded and installed.
- Dependencies: Not only does yum get the packages you request, but it also finds any dependent packages you need to get requested packages to work. So, request package A and yum asks you if you also want to install required packages B, C, and D as well. Say yes, and yum will download and install them all.
- Updates and Upgrades: As security fixes and bug fixes become available, the Fedora Project adds updated packages to yum repositories. A single yum command can get the latest update for some or all of your packages. Yum also supports upgrades, where obsolete packages are removed.
Expanding from Fedora Core
The Fedora Project wants to keep Fedora Core to a reasonable size. So far, reasonable has meant four binary software CDs (although FC5 in testing has, at the moment, spilled over to five CDs). For those who want a reliable foundation and a set of CDs that can be distributed without costing too much (even four is a lot to include with a book), the approach makes sense.
But what about the software that's left out to make room for the latest whatever-is-starting-to-get-hot-for-enterprise software? Maybe you liked Abiword or ncftp and don't want to figure out how to get it and maintain it yourself when it moved out of Core. Most of those packages aren't gone...they've just moved into Fedora Extras.
Fedora Extras packages are available for FC3 and FC4. Both i386 and 64-bit Extras RPMs are available for both releases, while PowerPC versions are available for FC4 as well.
Fedora Core aims to include packages that fit in - in other words, software with localized user interface and accessibility support; software that integrates with other Fedora Core software, without duplicating functionality. As a result, Extras includes extra applications that duplicate stuff already in Core (such as window managers, audio players, and so on) or are more recreational (like games).
Because Fedora Extras, like Fedora Core, meets Fedora Project guidelines (Open Source and patent issues), yum in FC4 is pre-configured to grab packages from Fedora Extras. You must set up yum yourself to use outside repositories.
Yum for Fedora Core and Extras
With a connection to the Internet and Fedora Core 4 installed you can install any packages from Fedora Core or Extras using yum, with no additional configuration. Here's how to find out what's available:
- Fedora Core: Open the Package Management utility by running system-config-packages (Desktop -> System Settings -> Add/Remove Packages). Next to each category of software, select Details to see which packages are and are not installed. Then install packages from an FC4 CD using that window or get packages using yum.
- Fedora Extras: To find packages available for Fedora Extras, start at the Fedora Project wiki (http://fedoraproject/wiki/Extras). You can elect to see a list of packages for your Fedora release (FC3 or FC4) and architecture (i386, x86_64, or PPC).
To install a package from Fedora Core or Extras, you need to run yum as the root user from a shell. Here's an example of yum to install the clamav package from Fedora Extras:
# yum install clamav
Select yes and clamav and dependent packages download and install. Instead of clamav, use any package name from the yum repositories. To check for updates to an installed package, use check-update:
# yum check-update clamav
If an update to the package is available, use yum with the update option as follows:
# yum update clamav
To check for updates for packages installed in Fedora - do this after you first install Fedora - type the following:
# yum check-update
If you want to update all the packages with available updates, type the following:
# yum update
Yum can also list available packages, as well as those that are already installed. To see a list of all packages available for download from the repositories you have set up, type:
# yum list | less
Adding less lets you scroll through the list (it could be long, depending on your repositories). This first lists installed packages, then packages still available from the repositories. Adding the -C option to yum uses cached repository information, which can make it run faster, but may not result in the latest information.
If you try to install a package and it fails with a message like "package xyzpackage needs xyzfile (not provided)" check for packages that include the missing file using the provides option:
# yum provides missingfile
With provides, yum searches your repositories for the file you entered (instead of missingfile) and returns the name of the packages that include that file. To search software descriptions in repositories for a particular string, use the search option. For example, this searches for arcade in any package description (you'll find some games with this search):
# yum search arcade
Identity is in everything and customers are looking to their providers to ensure the security of their identities, transactions and data. With the increased reliance on cloud-based services, service providers must build security and trust into their offerings, adding value to customers and improving the user experience. Making identity, security and privacy easy for customers provides a unique advantage over the competition.
Aug. 27, 2016 08:45 PM EDT Reads: 2,288
19th Cloud Expo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterpri...
Aug. 27, 2016 06:00 PM EDT Reads: 3,082
Smart Cities are here to stay, but for their promise to be delivered, the data they produce must not be put in new siloes. In his session at @ThingsExpo, Mathias Herberts, Co-founder and CTO of Cityzen Data, will deep dive into best practices that will ensure a successful smart city journey.
Aug. 27, 2016 05:15 PM EDT Reads: 1,569
SYS-CON Events announced today that 910Telecom will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Housed in the classic Denver Gas & Electric Building, 910 15th St., 910Telecom is a carrier-neutral telecom hotel located in the heart of Denver. Adjacent to CenturyLink, AT&T, and Denver Main, 910Telecom offers connectivity to all major carriers, Internet service providers, Internet backbones and ...
Aug. 27, 2016 05:00 PM EDT Reads: 1,875
There is growing need for data-driven applications and the need for digital platforms to build these apps. In his session at 19th Cloud Expo, Muddu Sudhakar, VP and GM of Security & IoT at Splunk, will cover different PaaS solutions and Big Data platforms that are available to build applications. In addition, AI and machine learning are creating new requirements that developers need in the building of next-gen apps. The next-generation digital platforms have some of the past platform needs a...
Aug. 27, 2016 04:00 PM EDT Reads: 567
SYS-CON Events announced today Telecom Reseller has been named “Media Sponsor” of SYS-CON's 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
Aug. 27, 2016 03:15 PM EDT Reads: 758
I wanted to gather all of my Internet of Things (IOT) blogs into a single blog (that I could later use with my University of San Francisco (USF) Big Data “MBA” course). However as I started to pull these blogs together, I realized that my IOT discussion lacked a vision; it lacked an end point towards which an organization could drive their IOT envisioning, proof of value, app dev, data engineering and data science efforts. And I think that the IOT end point is really quite simple…
Aug. 27, 2016 12:45 PM EDT Reads: 2,341
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devices - comp...
Aug. 27, 2016 12:30 PM EDT Reads: 3,613
DevOps at Cloud Expo, taking place Nov 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long dev...
Aug. 27, 2016 11:00 AM EDT Reads: 2,363
The 19th International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Digital Transformation, Microservices and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportuni...
Aug. 27, 2016 11:00 AM EDT Reads: 3,976
Data is the fuel that drives the machine learning algorithmic engines and ultimately provides the business value. In his session at Cloud Expo, Ed Featherston, a director and senior enterprise architect at Collaborative Consulting, will discuss the key considerations around quality, volume, timeliness, and pedigree that must be dealt with in order to properly fuel that engine.
Aug. 27, 2016 10:15 AM EDT Reads: 1,910
Pulzze Systems was happy to participate in such a premier event and thankful to be receiving the winning investment and global network support from G-Startup Worldwide. It is an exciting time for Pulzze to showcase the effectiveness of innovative technologies and enable them to make the world smarter and better. The reputable contest is held to identify promising startups around the globe that are assured to change the world through their innovative products and disruptive technologies. There w...
Aug. 27, 2016 07:45 AM EDT Reads: 685
Today we can collect lots and lots of performance data. We build beautiful dashboards and even have fancy query languages to access and transform the data. Still performance data is a secret language only a couple of people understand. The more business becomes digital the more stakeholders are interested in this data including how it relates to business. Some of these people have never used a monitoring tool before. They have a question on their mind like “How is my application doing” but no id...
Aug. 27, 2016 03:15 AM EDT Reads: 1,798
Personalization has long been the holy grail of marketing. Simply stated, communicate the most relevant offer to the right person and you will increase sales. To achieve this, you must understand the individual. Consequently, digital marketers developed many ways to gather and leverage customer information to deliver targeted experiences. In his session at @ThingsExpo, Lou Casal, Founder and Principal Consultant at Practicala, discussed how the Internet of Things (IoT) has accelerated our abil...
Aug. 27, 2016 02:30 AM EDT Reads: 2,017
With so much going on in this space you could be forgiven for thinking you were always working with yesterday’s technologies. So much change, so quickly. What do you do if you have to build a solution from the ground up that is expected to live in the field for at least 5-10 years? This is the challenge we faced when we looked to refresh our existing 10-year-old custom hardware stack to measure the fullness of trash cans and compactors.
Aug. 27, 2016 01:45 AM EDT Reads: 1,748
The emerging Internet of Everything creates tremendous new opportunities for customer engagement and business model innovation. However, enterprises must overcome a number of critical challenges to bring these new solutions to market. In his session at @ThingsExpo, Michael Martin, CTO/CIO at nfrastructure, outlined these key challenges and recommended approaches for overcoming them to achieve speed and agility in the design, development and implementation of Internet of Everything solutions wi...
Aug. 27, 2016 01:15 AM EDT Reads: 2,034
Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things. And Big Data is driving this bus. An exponential increase is expected in the amount of information being processed, managed, analyzed, and acted upon by enterprise IT. This amazing is not part of some distant future - it is happening today. One report shows a 650% increase in enterprise data by 2020. Other estimates are even higher....
Aug. 27, 2016 12:45 AM EDT Reads: 2,948
Is the ongoing quest for agility in the data center forcing you to evaluate how to be a part of infrastructure automation efforts? As organizations evolve toward bimodal IT operations, they are embracing new service delivery models and leveraging virtualization to increase infrastructure agility. Therefore, the network must evolve in parallel to become equally agile. Read this essential piece of Gartner research for recommendations on achieving greater agility.
Aug. 25, 2016 05:15 PM EDT Reads: 823
SYS-CON Events announced today that Venafi, the Immune System for the Internet™ and the leading provider of Next Generation Trust Protection, will exhibit at @DevOpsSummit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Venafi is the Immune System for the Internet™ that protects the foundation of all cybersecurity – cryptographic keys and digital certificates – so they can’t be misused by bad guys in attacks...
Aug. 25, 2016 01:00 PM EDT Reads: 2,652
For basic one-to-one voice or video calling solutions, WebRTC has proven to be a very powerful technology. Although WebRTC’s core functionality is to provide secure, real-time p2p media streaming, leveraging native platform features and server-side components brings up new communication capabilities for web and native mobile applications, allowing for advanced multi-user use cases such as video broadcasting, conferencing, and media recording.
Aug. 25, 2016 08:45 AM EDT Reads: 2,178