Linux Stuff

To install pulp-admin , use the following command:   yum install pulp-rpm-admin-extensions.noarch pulp-admin-client pulp-rpm-handlers.noarch Authenticate to pulp in every pulp-admin call To run a single pulp-admin command, use:   #pulpAdminPassword=$(grep ^default_password /etc/pulp/server.conf | cut -d' ' -f2)   #pulp-admin -u admin -p $pulpAdminPassword rpm repo list

First we need to setup our /etc/named.conf configuration options {         listen-on port 53 { 127.0.0.1; 192.168.0.107; };         listen-on-v6 port 53 { ::1; };         directory       "/var/named";         dump-file       "/var/named/data/cache_dump.db";         statistics-file "/var/named/data/named_stats.txt";         memstatistics-file "/var/named/data/named_mem_stats.txt";         allow-query     { any; };          forwarders {                 8.8.8.8; 8.8.4.4;         };     ...

1. Installation: Operating system used Debian 8 Add the repository echo ' deb https://download.jitsi.org stable/ ' >> /etc/apt/sources.list.d/jitsi-stable.list wget -qO - https://download.jitsi.org/jitsi-key.gpg.key | apt-key add - Update the package lists apt-get update Install Jitsi Meet apt-get -y install jitsi-meet   During the installation, you will be asked to enter the hostname of the Jitsi Meet instance. If you have a FQDN hostname for the instance already set up in DNS, enter it there. If you don't have a resolvable hostname, you can enter the IP address of the machine (if it is static or doesn't change).   Open a conference Launch a web browser (Chrome, Chromium or latest Opera) and enter in the URL bar the hostname (or IP address) you used in the previous step. SSL Certificate If you have you sign certificate just rename with domain.name.crt and domain.name.key and copy to /var/lib/prosody/ ex. conference.examp...

1. Backup Your System and Update dnf utility Before doing anything, it is recommended to take a backup of system, which can be used for restoring if anything goes wrong. Then after that update `dnf` utility and ensure that you've latest packages for existing version. sudo dnf upgrade  In case you don't have dnf installed execute: #yum install dnf 2. Install dnf upgrade plugin Next step is to install dnf upgrade plugin, a plugin used for using system upgrade. This can be done using following command. sudo dnf install dnf-plugin-system-upgrade 3. Download Update Packages using dnf When dnf plugin installation is complete, download update packages required for system upgrade using following command. sudo dnf system-upgrade download --releasever=23 --best This step will take some time as it involves downloading all packages required for system upgrade. 4. Reboot System and Upgrade Now, reboot your system to start upgrade activity. This can be done...

Templates The following functions and macros can be used within templates. These are guaranteed to work via the safemode rendering, to ensure a template can do nothing harmful. With safemode disabled other macros may work, but are not supported at this time. To enable safemode, set "safemode_render" to "true" in Settings -> Foreman settings. Safemode rendering prevents templates from reading and writing files on the file system or modifying application data within foreman. Accessing Templates There are two ways to render a template, based on a single host, or based on a Hostgroup. The host or hostgroup provides all the details with which to render the template. Host-based Rendering Only a single template of each type may be rendered for a system. Foreman determines which template to use following these rules: 1. Only the templates of the appropriate kind and associated with the hosts operating system are considered 2. If a...

To check the disk free with ansible you can run the following command To get all the hosts execute: # ansible -m command -a "df -h" all To get some group the hosts  ansible -m command -a "df -h" -i <hosts file>

 For this example you need to create the following directories as best practices For example root  |  ---- group_vars  |  -----roles  |          |  |          ----common  |-- site.yml  |-- hosts Create the root directory in this example named ansible #mkdir  ansible create the group_var and roles directories #mkdir group_vars #mkdir roles Create the files site.yml and hosts # touch site.yml # touch hosts Too create the common directory change to the directory roles and execute the following command ansible-galaxy init common this command create the standard infrastructure directories for use with ansible playbook For this example i would like to put the sudoers files in some machines to get this result we need to go into the common directory and there go into the tasks directory you are going to find a file named main.yml open it and copy the following ...