Passwordless Sudo with Ansible

Sudo without password, automatically. Short example role for ansible.

The role

• creates a new user in "sudoless" group
• adds a sudoers.d/ NOPASSWD rule for the group

Sudo without password

Ansible needs root on the slave. One way is to allow 'sudo' without password.

Summary for gurus (the rest of us can read the article):

$ cat /etc/sudoers.d/sudoless
%sudoless ALL = (ALL) NOPASSWD: ALL

DORA & Threat Lead Penetration Testing with Marko

Banks are now required to do red teaming exercises. Marko Buuri (Bank of Finland) showed us how TIBER-FI helps to create threat intel based red teaming exercises.

Marko's visit was part of my Penetration Testing course. You can join my list to get invitations to similar events.

SSH public key - Login without password

SSH is the leading solution for securily logging into servers.

Many products use SSH in the background: git, rsync, ansible...

Public key authentication is quite convenient. You don't need to type your password for every 'git push' or 'ansible-playbook'. Use correctly, it can also make your server more secure.

Hello Ansible

Write infrastructure-as-code, control multiple machines easily.

In this Ansible tutorial, we create a single file in /tmp/.

Palvelinten Hallinta

Control 10, 100, 1000 many computers.

Or control 2071 computers, like Jussi did on a earlier course. Or handle 7 different operating systems and OS versions with a single master, like Matias.

Best instance got 5.0 / 5 feedback - all respondents gave the best grade 5.

Tunkeutumistestaus

Learn to hack computers to protect your own. In the course, you will break into target computers.

Excellent feedback, reached 5.0 out of 5.