sudo firewall-cmd --state
sudo systemctl stop firewalld
sudo systemctl disable firewalld
sudo systemctl mask --now firewalld
sudo firewall-cmd --state
sudo systemctl stop firewalld
sudo systemctl disable firewalld
sudo systemctl mask --now firewalld
=TEXTAFTER( A2 , "@") or, =MID(A1, FIND("@", A1) + 1, LEN(A1) - FIND("@", A1))