VestaCP Installation Perquisite : Part 7 Install Latest EPEL Release

At First, Update your Base Repository ,then install latest EPEL

# yum check-update
# yum update -y 

Reboot The Machine
# reboot

# rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY*
# yum -y install epel-release

Run Update again & Check
# yum update -y 
# yum repolist 

If you have getting any error then run:

# yum clean all
# rm -rf /var/cache/yum

# yum update -y
# yum repolist 

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By default CentOS 7 uses postfix mail server. So remove Postfix completely because Vesta uses Exim4 mail server . also remove sendmail

# systemctl stop postfix
# yum remove postfix -y
# yum remove sendmail -y

If you want use nginx web-server , then remove

# systemctl stop httpd
# yum remove httpd –y