i gained confidence after i had done with IBL project.
but i scared until i left the office to get flight
at that time, i didn’t understand the internal process of firewall, so i spent time a little to configure ssh.
the most terrible story on that site was that i didn’t had any information to connect voice trunk between telecom and office.
it was on weekends and no one i could ask. and i didn’t establish knowledge of Voice.
So i was scared until i left the place for flight.
there was no one knowing the voice, so i searched in google.
to conclude, i miraculously finished configuring the voice and i finally could call outside from the office.
it was coincidence to find the solution. i searched for hours and i tried to apply them whenever i found configuration.
but by accident, i found regular configuration of telecom for each country, and i applied one of brazil telecom configuration.
it was so stressful to finish until i left for flight