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FFMPEG on EL 8

Command line Linux

dnf install -y epel-release dnf install -y https://download1.rpmfusion.org/free/el/rpmfusion-free-release-8.noarch.rpm https://download1.rpmfusion.org/nonfree/el/rpmfusion-nonfree-release-8.noarch.rpm -y && dnf install http://rpmfind.net/linux/centos/8-stream/...

tcpdump

Command line Networking

One-Liners: tcpdump Helpful tcpdump commands. Add -v to -vvvv to see from some to a lot of information. General networking Get CDP or LLDP information. tcpdump -i enp132s0f0 -v -s 1500 -c 1 '(ether[12:2]=0x88cc or ether[20:2]=0x2000)' Watch DHCP traffic tcpdu...

Ansible inventory from a csv file.

Deploy and Configure Automation

General Create an Ansible inventory in YAML format using the following steps. Assuming that the CSV file has the following structure: Hostname,IP Address,Variable1,Variable2,Variable3 host1,192.168.1.1,value1,value2,value3 host2,192.168.1.2,value4,value5,value...

devops
systems

Pics of Things

Other Things

OpenSSL tricks

Command line Security(ish)

Download a site's certificate. This command will connect to example.com on port 443 using the s_client subcommand and output the site's certificate information in text format using the x509 subcommand. The -text option tells openssl to print the certificate in...

Inventory from gathered facts.

Deploy and Configure Automation

Playbook example --- - name: Generate YAML Inventory File from Gathered Facts hosts: all gather_facts: true tasks: - name: Gather facts from hosts setup: - name: Create YAML inventory file copy: content: | all: ...

Windows Install Media

Command line Windows

./create_win_usb.sh ~/Downloads/Win10.iso /dev/sdc #!/bin/bash # -------------------------------------------------------------- # Create Bootable Windows 10/11 USB in Linux (Debian/RPM-based) # Version: 1.0 # Author: LinuxConfig.org # Date: 23-06-2023 # Licens...

The Toy Box

Other Things

Let's imagine you have a toy box filled with different kinds of toys. We're going to talk about three special toys: a talking doll, a magic wand, and a robot. Talking Doll (CRM - Customer Relationship Management): This doll is super friendly and remembers th...

vCenter - Linux Templates

Deploy and Configure Automation

To deploy multiple VMs with different hostnames and IP addresses while utilizing the customization capabilities provided by the vmware_guest module in Ansible, you can use VMware's customization specifications. This approach allows for more advanced customizat...

oVirt - Windows Template

Deploy and Configure Automation

To create an Ansible playbook that deploys a Windows VM from a template on oVirt, customizes the OS with sysprep, sets unique hostname and static IP, and performs other specified configurations, follow the structure below. This example assumes you have a syspr...

Oracle Database 21c

Deploy and Configure Oracle Things

Download the following software: Oracle Linux 8 (x86_64) Oracle Database 21c Enterprise Edition (x86_64) NOTICE This is a very basic install. It should only be used as a guide. OS setup Install Oracle Linux 8. "Minimal" installation. As the root user, co...

Oracle Enterprise Manager 13.5 on OL8

Deploy and Configure Oracle Things

Oracle Enterprise Manager Cloud Control 13c on Oracle Linux 8 Step 1: Download Required Software First, ensure you have downloaded the necessary software from Oracle’s official website: Oracle Linux 8 ISO from Oracle Linux Download Oracle Database 19c (or la...

Oracle Response Files

Deploy and Configure Oracle Things

Oracle Database Install Creating a response file for a silent installation of Oracle Database is a common task that allows you to automate the installation process without needing to interact with the graphical user interface. Below is an example response file...