====== NetYCE installation prerequisites ======

Presented below is a quick overview of the important prerequisites when using NetYCE. Where especially the server section is important if NetYCE is to be used on a shared server.

===== Node Communication =====
  * Requires a functional user to connect to all devices (or per group/domain)
  * Requires direct connectivity to the node on the IP address provided
  * Requires direct connectivity from the node to the NetYCE server to support backups (NCCM) on the desired/supported protocol (tftp, ftp, sftp, scp)

The [[guides:reference:connection_matrix|connection matrix]] showing the connectivity requirements.

===== Server =====
When using the NetYCE provided VM the below is taken care of. They are applicable if NetYCE is to be used on a shared server.

  * Centos/RHEL 7, x86_64 arch
  * SElinux not supported
  * MariaDB supported versions 10.0 - 10.4
  * communication ports fully 'owned' by own daemons
    * (tftp, ftp, httpd, scheduler, xch-api, restful-api, backend)
    * some port-numbers can be re-assigned, but most are industry-standard
    * manages httpd, mysql/mariadb, vsftpd configuration files
  * ssh server is to support [[maintenance:general:file_transfer_account_setup#scp_and_sftp_setup|MySecureShell]]
  * minimal root-privileges
    * process-manager, ssh, httpd, vsftpd run as 'root', all other processes as 'yce'
    * some sudo setup requirements apply
  * Require shared 'yce' and 'ycicle' userid's
  * not-configurable paths
    * /opt/yce/
    * /opt/ycelib
    * /var/opt/yce
    * /var/opt/mysql
    * /var/opt/shared