| Hostname | IP |
|---|---|
| ldap-zb-01.juntotelecom.com.br | 177.75.176.55 |
| mbox-zb-01.juntotelecom.com.br | 177.75.176.56 |
| mta-zb-01.juntotelecom.com.br | 177.75.176.57 |
| proxy-zb-01.juntotelecom.com.br | 177.75.176.58 |
Executar em todos os servidores
yum install perl-core unzip nmap-ncat sysstat bind-utils wget
systemctl stop postfix
systemctl disable postfix
rpm -ev postfix
echo "$(hostname -I) $(hostname -f) $(hostname)" >> /etc/hosts
dig $(hostname -f) +short
dig -x $(hostname -I) +short