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How do I verify the speed of my NIC?

Just use a command like: ethtool eth0 to get the needed info. Ex: $ sudo ethtool eth0 | grep Speed Speed: 1000Mb/s

How To Create Files Of A Certain Size In Linux

$ dd if=/dev/zero of=file.txt bs=500MB count=1

Ansible: Can I execute role from command line?

With ansible 2.7 you can do this: $ cd /path/to/ansible/ $ ansible localhost -m include_role -a name=<role_name> localhost | SUCCESS => { "changed": false, "include_variables": { "name": "<role_name>" } } localhost | SUCCESS => { Read more

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