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Yum updating redhat repositories

When a machine is connected to the Internet, these tasks can be easily performed using a package management system such as aptitude (or apt-get), yum, or zypper, depending on your chosen distribution, as explained in Part 9 – Linux Package Management of the LFCE (Linux Foundation Certified Engineer) series.You can also download standalone or files and install them with dpkg or rpm, respectively.update httpd Loading mirror speeds from cached hostfile * base: mirrors.sin3* epel: ftp.* extras: mirrors.sin3* updates: mirrors.sin3Setting up Update Process By default yum keeps all the repository enabled package data in /var/cache/yum/ with each sub-directory, to clean all cached files from enabled repository, you need to run the following command regularly to clean up all the cache and make sure that there is nothing unnecessary space is using.

We will choose the latter as the Apache installation was covered in Part 1 – Installing Apache of this LFCE series.It allows users and system administrator to easily install, update, remove or search software packages on a systems.It was developed and released by Seth Vidal under GPL (General Public License) as an open source, means anyone can allowed to download and access the code to fix bugs and develop customized packages.The basic requirement of this article is, you must have a basic understanding of commands and a working Linux operating system, where you can explore and practice all the commands listed below.YUM (Yellowdog Updater Modified) is an open source command-line as well as graphical based package management tool for RPM (Red Hat Package Manager) based Linux systems.# yum search vsftpd Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: * epel: * extras: * rpmforge: * updates: ============================== Matched: vsftpd ======================== ccze.i386 : A robust log colorizer pure-ftpd-selinux.i386 : SELinux support for Pure-FTPD vsftpd.i386 : vsftpd - Very Secure Ftp Daemon# yum info firefox Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: * epel: * extras: * rpmforge: * updates: Available Packages Name : firefox Arch : i386 Version : 10.0.6 Release : 1.el5.centos Size : 20 M Repo : updates Summary : Mozilla Firefox Web browser URL : License : MPLv1.1 or GPLv2 or LGPLv2 Description: Mozilla Firefox is an open-source web browser, designed for standards : compliance, performance and portability.# yum provides /etc/httpd/conf/Loaded plugins: fastestmirror httpd-2.2.3-63.el5.centos.i386 : Apache HTTP Server Repo : base Matched from: Filename : /etc/httpd/conf/httpd-2.2.3-63.el5.centos.1.i386 : Apache HTTP Server Repo : updates Matched from: Filename : /etc/httpd/conf/httpd-2.2.3-65.el5.centos.i386 : Apache HTTP Server Repo : updates Matched from: Filename : /etc/httpd/conf/httpd-2.2.3-53.el5.centos.1.i386 : Apache HTTP Server Repo : installed Matched from: Other : Provides-match: /etc/httpd/conf/In Linux, number of packages are bundled to particular group.Instead of installing individual packages with yum, you can install particular group that will install all the related packages that belongs to the group.The above command will ask confirmation before installing any package on your system.If you want to install packages automatically without asking any confirmation, use option -y as shown in below example.However, when a machine does not have access to the world wide web, another methods are necessary. The reasons range from saving Internet bandwidth (thus avoiding several concurrent connections to the outside) to securing packages compiled from source locally, and including the possibility of providing packages that for legal reasons (for example, software that is restricted in some countries) cannot be included in official repositories.That is precisely where network repositories come into play, which is the central topic of this article.

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