Yumstories Proxy 1 Yumstories Proxy 2. The ability to add a new certificate is important if a Jitterbit Agent is configured to use a proxy server. diff from the top level of the source directory (pidgin/, not pidgin/pidgin/ or pidgin/finch/). Configure Forwarding to Second Proxy. 5? Looks like I'm due an update myself in that case! :) Yeah we have much the same problems with some legacy stuff here, (Got a Debian 6 server running some proprietary timetabling software that the developer just will not update to work with a later version!) like you say, it's just not worth it in some cases. conf file - I specified the proxy in yum. ORACLE-BASE - Oracle DBA and development articles, scripts, HOWTOs and forums (8i, 9i, 10g, 11g, 12c, 13c, 18c, 19c) Articles Oracle 8i Oracle 9i Oracle 10g Oracle 11g Oracle 12c Oracle 13c Oracle 18c Oracle 19c Miscellaneous PL/SQL SQL Oracle RAC Oracle Apps WebLogic Linux MySQL. Give it a try and let us know what you think! Upgrade Support for Firewall Enabled Repositories. CentOS 7 has the package yum-plugin-changelog. Used to install the newest versions of all packages currently installed on the system from the sources enumerated in /etc/apt/sources. Tinyproxy is a light-weight HTTP/HTTPS proxy daemon for POSIX operating systems. Use to bypass proxying for all hostnames which do not contain periods. Bleeding edge techniques using Asynchronous I/O and Event. Those settings in /etc/yum. In XenServer 6. Extended documentation of handling non-existent packages and YUM to DNF transition in Changes in DNF CLI compared to YUM. Description of problem: YUM does not supports proxies with NTLM My Fedora 16 Workstation joined to Windows domain. Use yum to get them if you need them. YUM Server Configuration 1) Install the below packages This may not work and you may get an. If the proxy is used in the environment but the specific repo (e. I found that a lot of good posts do not work any more as 2. This proxy statement is furnished in connection with the solicitation of proxies by the Board of Directors of VF Corporation to be voted at VF’s Annual Meeting of Shareholders on April 24, 2018 and any adjournments of the meeting (the “Meeting”). Using Squid as a proxy server, it decreases the load on the server, increases the capacity and decreases the costs. By the looks of the response you got from yum, what you have listed in /etc/resolv. 4 Updating a System by Using Yum 4. This how-to explains how to install the current version of Squid Proxy on a CentOS 7 VM with Webmin, Apache, and SARG with update support from repositories as well as how to include easy to use whitelists and blacklists. YOU MUST USE THE DIRECT FQDN FOR THE PROXY FOLLOWED BY THE PORT NUMBER. The same did not work with their 2. For Ubuntu 10. The database data directory is not inside the container, because this would contradict the logic of the containers as those must be as small as possible. yum-dnf package does not conflict with yum package. Workaround: This occurs when the instance is not configured to automatically login to iSCSI nodes on. This tutorial explains how to add support manually for SSL/TLS on an EC2 instance with Amazon Linux 2 and Apache web server. Dev - Nexus Repo; NEXUS-21311; Yum proxy repos do not work with CentOS 8. Yes it works , interesting that user and password parameters not working with double quotes only with single. 31, 2018 , 8:15 a. First, the problem may just be an intersection between your proxy's configuration and the default yum configuration. We’ll need to install a package onto the server that allows it to understand the SMB protocol. This does not work if you are using an authenticated proxy. Certain packages are not able to be downloaded and yum complains with "[Errno -1] Header is not complete. The difference between the ISO and YUM is. docker run --dns 8. Using an http proxy¶ To use stack behind a http proxy with ip address IP and port PORT, first set up an environment variable http_proxy and then run the stack command. PEAR installer now supports PHP 7. If the computer's Background Intelligent Transfer Service (BITS) doesn't start. This short tutorial describes how to enable or disable a single or group of YUM repositories while installing softwares in CentOS. The Secure Agent continues to run as a service until stopped. Now at least, I have a working config, but I don't understand what is going on in this new version. If we can move it all via some sort of proxy, the general idea says, the added security is well worth it. There are two ways to parse PHP if you use Nginx, as a reverse proxy and as a stand alone with php-fpm. Linux Using mouse’s scrollwheel in 'screen' Linux command. Oracle VM VirtualBox offers a collection of options, in an attempt to make this work deterministically and reliably on as many Linux distributions and system configurations as possible. Configuring Web Proxy on CentOS If your internet connection is behind a web proxy, you need to configure the following on your CentOS server: System-wide proxy settings - add the following lines to your /etc/environment file:. There are a few ways to work "fix" this: 1. conf - Configuration file for yum(8). if i have 100 user. If no proxy is specified, it will inherit the global proxy setting. If you are using v6 you can tell ASL to allows hosts to bypass the proxy. Warning: Unlike with downloads, it's not possible with uploads to verify that the already present part and the rest of the file belong together, or if one of the parts has been changed in the meantime. In order to use HTTP/HTTPS proxy settings via the command line you will need to set the http_proxy environmental variable. 04 without python 2. [[email protected] ~]$ su - -c "gedit /etc/yum. Red Hat Update Infrastructure for on-demand Red Hat Enterprise Linux VMs in Azure. Perforce Software provides enterprise-scale development tools. So it would be obfuscation and not "encryption" that you were doing and I don't believe yum supports anything like that. To determine your service manager run: yum remove mysql. Common Settings. If set to 1, enable plugins that extend the functionality of yum. There is a "proxy_username" and "proxy_password" option (man yum. Zabbix proxy is a process that may collect monitoring data from one or more monitored devices and send the information to the Zabbix server, essentially working on behalf of the server. it could range from personal internet access to restrict organization systems/servers to access the external world or to limit external internet access for a set of servers on the cloud. 【yum】yumが動かないときの簡易対処方法集（IOError、Trying other mirror、Determining fastest mirrors、フリーズ等） does not work for you. installed and upgraded via the yum repo (omnibus). export http_proxy Without these entries, yum (Fedora package manager) will not work. The proxy I have to work through requires authentication with a domain name. Could you paste the output that happening? And that _none_ really is the way to unset the proxy setting according to yum man page on CentOS. Hi, I have the same issue. i need squid proxy on my centos server. The database data directory is not inside the container, because this would contradict the logic of the containers as those must be as small as possible. Or plan to deploy your own server? See Servers. 4 middle tier, the SAS Web authentication steps as laid out in the document below will not work, because like you said, the SAS Web Server is being bypassed in a reverse proxy configuration,. Each unit has a unit type and metadata component. 4 Updating a System by Using Yum 4. The following article will teach you how to allow your Linux system to use a proxy server for command line tools like wget and yum. Even if you are not one of those one of them feel free to leave a comment and I shall try to help you out. 🔴iPad>> ☑Nordvpn Does Not Work With Chaturbate Opera Vpn For Android ☑Nordvpn Does Not Work With Chaturbate Vpn Configuration For Iphone ☑Nordvpn Does Not Work With Chaturbate > USA download nowhow to Nordvpn Does Not Work With Chaturbate for Save 30%. This machine is using the same yum. These scripts are usually targeted to Microsoft Explorer or Firefox specifically. Setting config. com does not work with web proxy sites, you should buy a VPN service that is extremely simple to use, you just buy the subscription, then you use their software to change your IP and access blocked sites, incuding google. screenrcnano ~/. Even in XenServer 6. 4 middle tier, the SAS Web authentication steps as laid out in the document below will not work, because like you said, the SAS Web Server is being bypassed in a reverse proxy configuration,. But, donwloading yum packages, [email protected] This can handle PAC files, but still has the problem that it is system-wide, and does not adjust according to the currently-connected network(s). yum – Yum is a powerful, interactive, and automated package update / query / install program which can be used for maintaining systems using rpm (Redhat Package Manager). Perforce Software provides enterprise-scale development tools. Ncat will not only work with IPv4 and IPv6 but provides the user with a virtually limitless number of potential uses. yum install -y centos-release-SCL yum install -y scl-utils yum install -y python27 RedHat 6. New repository configuration files have been installed but are disabled. No Proxy For: List of hostnames or IP addresses that will not be proxied. Comment out the line that reads releasever=latest and run yum clean all to clear the cache. Release engineering: All release engineering tools that depends on DNF should be tested against DNF-2. CentOS network install behind a proxy. This is a complete beginner's friendly tutorial to install jenkins on RHEL/CentOS 7. yum info yum-plugin-changelog. CURL command Tutorial in Linux with Example Usage Submitted by Sarath Pillai on Sun, 03/16/2014 - 13:45 Transferring data from one place to another is one of the main task done using computers connected to a network. The ngx_http_upsream_module does the same thing as the Apache mod_proxy. In a single Windows application, it provides loads of functions that are tailored for programmers, webmasters, IT administrators and pretty much all users who need to handle their remote jobs in a more simple fashion. Install DHCP Package. SS5 is a high performance SOCKS proxy server implementing SOCK4 and SOCKS5 protocols. 10 mainline version has been released. In this article we are going to set up a Socks5 Proxy server using SS5 on CentOS 7. Required if you require connectivity beyond your local network subnet, such as having Internet connectivity. Is there files to modify or to add where should i put config proxy? Thanks. Below is a copy of my yum. Luckily setting up yum to run over a proxy is an easy task. Linux Using mouse’s scrollwheel in 'screen' Linux command. The GitLab repo is here. 0) targetting a production installation from release tarballs and deals with these steps: Installing the LedgerSMB Perl module dependencies Configuring the PostgreSQL server Configuring a webserver Configuring LedgerSMB If you already have all of the above, proceed to the "Preparing for. I tried the usual wayto find out how – googleing. If you are using Acronis Cloud, Web Restore service is provided to your end users by Acronis. 5 Yum Groups. The connection isn't made over a HTTP proxy. It tells Apache to modify the response headers from backend server. x Maven 2 format Yum enabled proxy repositories is not supported - your new Nexus 3. conf file:. Packages currently installed with new versions available are retrieved and upgraded; under no circumstances are currently installed packages removed, nor are packages that are not already installed retrieved and installed. Please click "Yum Howto" link at the top for help. Perforce Software provides enterprise-scale development tools. With just one tool to download and configure, you can control multiple AWS services from the command line and automate them through scripts. Home How to Manage CentOS 7 Server with Webmin > If you do not have nano installed, you can run yum -y install I am not able to get the domain working on. Also, proxy_bypass handling is currently only implemented for the proxy url type "http" (and not, for instance, "https"). The company did not want any information (http, https, ftp, whatever) to pass directly through the firewall from the internal network to the external network. Pip is a python package management system used to install and manage software packages which are found in the Python Package Index (PyPI). Check if a system is using standard curl package from Red Hat. One common trouble that I've seen a couple of times is PHP not working with Nginx. In the following, I will show you how to set up PAC on Ubuntu Desktop so that you can automatically switch between "no-proxy" and "proxy" based on the IP address of local host. conf file - I specified the proxy in yum. Note that upgrading Nexus 2. Ansible is a radically simple IT automation engine that automates cloud provisioning, configuration management, application deployment, intra-service orchestration, and many other IT needs. conf file is my best guess. On older systems where rpm packages from other sources are already installed, the installation can be more complicated because you will have conflicts between IBM rpm packages and the installed ones. Yum is the default package management utility in RHEL/Centos. Following a successfully # registration you can: # - auto-attach subscriptions # - set the service level # - add subscriptions based on its pool ID # - enable yum repositories based on its repo id # - disable yum repositories based on its repo id # - alter the rhsm_baseurl and server-hostname in the # /etc/rhsm/rhs. conf and put your proxy, proxy_username and proxy_password Disable NetworkManager as OpenStack networking currently does not work on systems that have. The dashboard grid layout engine has changed. There are a few ways to work "fix" this: 1. Simple http proxy grabber and checker. In order to cross-compile for Linux/ARM you first need to obtain ARM based libraries to compile against. Warning: this is a gross hack, which may or may not work for you. Risks Whenever you install a patch, there are risks. There is a "proxy_username" and "proxy_password" option (man yum. Squid is a well known web proxy application which is used to filter and cache the web traffic. 6 Browsing Available Errata for a System 4. test equipment may not work on some of the computers on your network. I have installed squid proxy server and it is working fine for http request but it is blocking other ports like 110 and 25 for Outlook. emacs proxy. Extended documentation of handling non-existent packages and YUM to DNF transition in Changes in DNF CLI compared to YUM. The database data directory is mapped to our local CentOS 7. To configure a proxy in the yum configuration:. conf file? Also try adding in yum. bash: wget: command not found. Let us get started. In my experiments, centos installed in a minimalist package. proxy, GNOME keeps its own proxy settings. Just for the verification you can run beneath command to see whether you are able to fetch the packages or not. So, after lot googling and landed on CentOS RHEL 5 Deployment 5 guide, where i found the below. 2 Jump to solution If you are also behind a proxy, then you should define this proxy in "/etc/yum. This post covers steps to configure YUM so that you can install missing RPM (RPMs required for Oracle Database and Fusion Middleware). Depending on your install you may or may not have OpenSSL and mod_ssl, Apache's interface to OpenSSL. Citrix does not support any yum installation on the dom0 - so that could be the main reason. vi /etc/yum. It was the best I could as code tags did not work. It allows to assign specific license to specific box and list the current status of licensing. We recently discovered that there is no internet connectivity so they. Internet access via proxy did not work. Install and Set Up kubectl. To determine your service manager run: yum remove mysql. No XF files have changed in about two weeks, yum ran on Friday and updated a slew of stuff. A DNS server is not a proxy server nor vice versa. VPN can work through the proxy, if you need to access the Internet (for example, a corporate proxy server at work). This document explains how to setup SmokePing at your site. There are two ways to parse PHP if you use Nginx, as a reverse proxy and as a stand alone with php-fpm. Setting config. The database data directory is mapped to our local CentOS 7. sudo yum install gcc pcre-devel tar make -y. CentOS 7, subscription-manager is available in the ‘os’ repo for its release: yum install subscription-manager; CentOS 5/6, enable the upstream subscription-manager repo and then install subscription-manager (be sure to change ‘6’ to ‘5’ if you’re on EL5, as the version from 6 will not work):. Ready to use? Just navigate to Quick Guide. 4 Using Yum on Oracle Cloud Infrastructure Systems 1. However, you should always examine which changes yum plans to make to the system so that you can easily troubleshoot any problems that might arise. 2 on CentOS 7. Oracle VM VirtualBox offers a collection of options, in an attempt to make this work deterministically and reliably on as many Linux distributions and system configurations as possible. Squid is a well known web proxy application which is used to filter and cache the web traffic. 0 , I see all the repos are. conf [main] cachedir=/var/cache/yum keepcache=0 debuglevel=2. You will work. Yum/DNF command itself does not contain any way to remove the repository. In this article we will show you how to enable proxy settings for yum command on a CentOS 7 server. Right now I have data for my 4. Cygwin is a great tool, but there’s a lot of quirks and tricks that makes you lose a lot of time to make it actually 'usable'. > I found out that my Suse machine has prvosions for authentication in the proxy setup in yast where I enter name and password and works fine. If your company is forcing a proxy policy & you are running Redhat/CentOs/Fedora you will have to update your yum. If your Hyper-V host is a member of a failover cluster and the Linux VM will be HA, use a static MAC address. It is possible the package available may not be the latest version, however, enabling autoupdate will ensure the Linux Agent will always get the latest update. conf(5) NAME yum. Upgrade/compatibility impact. About PostgreSQL Yum Repository. READ: Install Gnome Desktop on CentOS 7 / RHEL 7. This guide was tested on CentOS 7 server, however the same method should work on Fedora, RHEL, Scientific Linux, and other RPM based Linux distributions. Release engineering: All release engineering tools that depends on DNF should be tested against DNF-2. conf, I get [Errno 14] PYCURL [SOLVED] yum issues through proxy. Installation: yum install openldap-servers openldap-clients. conf file is my best guess. repo) requires to bypass the proxy, modify the specific repo file by continuing with the steps below. If you have to install software, security updates and fixes often in multiple systems in your local network, then having a local repository is an efficient way. Yum is a package manager tool that works with RPM packages. The ubuntu security repos have had an issue connecting over ipv6 for some time now. This is our case, and the behavior I see is that the yum module does not attempt to use the proxy. If you like to install and update Webmin via RPM, yum install webmin All dependencies should be resolved automatically. This tutorial describes how to setup a local Yum repository on CentOS 7 system. Learn about the only enterprise-ready container platform to cost-effectively build and manage your application portfolio. You can close the window at any time. yum-complete-transaction rpm -Va --nofiles --nodigest package-cleanup --dupes package-cleanup --problems. View 2018-pizza hut AR. It also works as a reverse proxy, standard mail and TCP/UDP proxy server, and can additionally be configured as a load balancer. There are (at least) two reasons why you can see this issue. Comment out the line that reads releasever=latest and run yum clean all to clear the cache. Install DHCP Package. For Ubuntu 10. 04 without python 2. of the Centre for High Energy Physics at IISc. Content is available under CC-BY unless otherwise noted. js versions from Node. Actually, if you are an individual developer or work in a really small team, you don’t really need to go beyond using the basic stuff like cloning a repo, committing code, branching and pushing back to the origin repo. ; Privacy. Install and Set Up kubectl. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. CentOS 7, subscription-manager is available in the ‘os’ repo for its release: yum install subscription-manager; CentOS 5/6, enable the upstream subscription-manager repo and then install subscription-manager (be sure to change ‘6’ to ‘5’ if you’re on EL5, as the version from 6 will not work):. Super Fast. To lock existing instances to their current version (indicated in /etc/system-release), edit /etc/yum. Enter the URL and click okay to save changes and load the proxy configuration. Buy and sell electronics, cars, fashion apparel, collectibles, sporting goods, digital cameras, baby items, coupons, and everything else on eBay, the world's online marketplace. On older systems where rpm packages from other sources are already installed, the installation can be more complicated because you will have conflicts between IBM rpm packages and the installed ones. Configure the Proxy for Your RADIUS device. I am using a Windows proxy at my work (don't have any choice in that). 31, 2018 , 8:15 a. If that works, it is a yum problem. If you are running yum behind a proxy, but have not specified the proxy in the yum configuration, you will get connection failure errors like the above. yum and proxies (getting yum to work through a http proxy) Yum does not seem to cope with proxies very well. Linux Using mouse's scrollwheel in 'screen' Linux command. certficicate of the SQUID server, it has been tested to be working. Pip is a python package management system used to install and manage software packages which are found in the Python Package Index (PyPI). Learn more about CA products from a community of your peers. This proxy statement is furnished in connection with the solicitation of proxies by the Board of Directors of VF Corporation to be voted at VF’s Annual Meeting of Shareholders on April 24, 2018 and any adjournments of the meeting (the “Meeting”). Artifactory remote repositories support YUM out-of-the-box, and there no need for any special configuration needed in order to work with RPMs in a remote repository. Extended documentation of handling non-existent packages and YUM to DNF transition in Changes in DNF CLI compared to YUM. This includes version control, application lifecycle management, agile planning, and static analysis. If you plan to offer commercial-grade services, the AWS Certificate Manager, which is not discussed here, is a good option. 0 section in the CHANGES file for a complete list. Content is available under CC-BY unless otherwise noted. How do I install the Agent on a server with limited internet connectivity? The one-line install command provided in the Agent install instructions requires outbound HTTPS access to a number of different endpoints to function properly and might not work with servers that have limited internet access. Additional configuration files are also read from the directories set by the reposdir option (default is `/etc/yum. If the output of nmcli shows "connected" for a particular interface (e. First install DHCP packages using yum package manager on CentOS, Red Hat systems. conf, or you can specify a proxy for each repository in /etc/yum. I was looking forward towards apache php 5. 0, which was not yet available in the standard repositories. On each operating system, a node-oracledb binary will work with a number of Node. You may vote your proxy via the Internet or by phone by following the instructions on the notice of internet availability or proxy card, or if you received a paper copy of these proxy materials by mail, you may vote by mail by completing and returning the enclosed proxy card in the enclosed. yum --setopt=tsflags=noscripts remove package => This removes without checking the dependency files. Install DHCP Package. Matched Content. So I decided to first give it a shot using Virtual Box machines. If it doesn't work, it's a proxy problem. Use yum to get them if you need them. The proxy we have at work can't, yum should be able to deal without but can't so I have to rsync each of the repositories down locally and run yum from them. if that does not work, remove using the below command. Hi, I have the same issue. If you need more information then visit our tutorial on How to Add a User and Grant Root Privileges on CentOS 7. how to set proxy for rpm and yum. 4 Using Yum on Oracle Cloud Infrastructure Systems 1. Note that the 'yum-builddep' command is in the 'yum-utils' package, which is not necessarily installed by default. Automatic proxy configuration URL: Choose this if you have a proxy configuration (. yum -y install nginx httpd-tools. The core of Babun consists of a pre-configured Cygwin. Now Run this Command to install Freerdp # yum install freerdp -y. In order to use HTTP/HTTPS proxy settings via the command line you will need to set the http_proxy environmental variable. so please check that. CentOS 7 has the package yum-plugin-changelog. Then I reinstalled it with CentOS 6. If you use Generation 2 with your CentOS VMs on Hyper-V 2012 R2/8. Build, Share, and Run Any App, Anywhere. It has become an essential part of a good Linux based network where system administrator use this utility to keep track of network usage and restrict/allow access to the certain areas of the internet. (702451) • IP spoofing could not be performed in proxy mode, as the appropriate IP rule and IP route entries were missing. We believe free and open source data analysis software is a foundation for innovative and important work in science, education, and industry. 045 Yum Version: 3. I did put proxy, proxy_username, proxy_password in yum. enabled to false disables the whole plugin, so it should not do anything. We do have a license key installed. User name for authentication with a proxy server. Certain packages are not able to be downloaded and yum complains with "[Errno -1] Header is not complete. The following are the supported unit types for the Yum plugins. Due a recent compliance mandate direct internet access had to be removed for a pool of our Cent/RHEL servers. We shall do it in the following steps. The dashboard grid layout engine has changed. Run the below yum command if you'd like to review the details for the package. CentOS / RHEL : How to create and host yum repository over httpd. That way all context paths are passed through accordingly. About PostgreSQL Yum Repository. Many thanks in. So, install either FTP or Apache on your yum server. If no proxy is specified, it will inherit the global proxy setting. Getting an initial configuration to work is rather simple. repo) requires to bypass the proxy, modify the specific repo file by continuing with the steps below. Additional configuration files are also read from the directories set by the reposdir option (default is `/etc/yum. ERA Proxy component will not be able to connect to its database. Squid is a well known web proxy application which is used to filter and cache the web traffic. Oracle Linux yum server repository configurations have changed which means public-yum-ol7. To configure Chef to work in an environment that requires proxies, set the http_proxy, https_proxy, ftp_proxy, and/or no_proxy environment variables to specify the proxy settings using a lowercase value. As you can imagine, PAC is extremely useful for setting up proxy exceptions, proxy load balancing, network-aware conditional proxy, etc. Recently I needed to setup k8s cluster on my local machine in order to see if I’m able to do it on bare-metal servers lately. Unfortunately some of them do not want to be listed, which is the case for the largest of them. Services such as Red Hat’s up2date and SUSE’s YaST Online Update do not install upgraded kernels, unless you authorize the installation. In this article we will show you how to enable proxy settings for yum command on a CentOS 7 server. Since ChromeDriver takes the proxy settings from the env variable, you can set or unset the proxies as you wish (Remove them if you're running tests on local machines):. Welcome to the CentOS fora. yum install e2fsprogs-devel libuuid-devel the resxtop and ESXCLI commands do not work if you do not install the 32-bit // proxy were not set when you. The Kubernetes command-line tool, kubectl, allows you to run commands against Kubernetes clusters. In a single Windows application, it provides loads of functions that are tailored for programmers, webmasters, IT administrators and pretty much all users who need to handle their remote jobs in a more simple fashion. Installing the full Spacewalk 2. Cross building for ARM hard float Just Looking for a binary to try? Check out the Community builds. But like RHN it requires to use proxy setting in configuration file, it does not. 0, we needed a HTTP/HTTPS proxy server to test the new features like public cloud support. This machine is using the same yum. The answer was to set up a proxy server and tell these internal boxes to use the proxy. CentOS 6 has the package yum-plugin-changelog. conf as shown in the following example. Additional configuration files are also read from the directories set by the reposdir option (default is `/etc/yum. For example the following ip command can be used to show IP address on CentOS 7: # ip address show OR. Zabbix proxy is a process that may collect monitoring data from one or more monitored devices and send the information to the Zabbix server, essentially working on behalf of the server. Its architecture is optimized for security, portability, and scalability (including load-balancing), making it suitable for large deployments. 0 , I see all the repos are. I googled and found that I can simply add a proxy for yum by support Basic authentication. Please consult a user mailing list to sort out the details. I am installing Ubuntu server for the first time. This short tutorial describes how to enable or disable a single or group of YUM repositories while installing softwares in CentOS.