PHDCCI's Architecture

This is an Old / Outdated Article, Please use this only as technical Reference
Reason: Old Technology and Customer But Relevant for Understanding
Flagged: 2026-07

Architecture Diagram

Details

Server Details:

Global Ip : 210.7.75.146 (active), eth0 port

Local Ip  : 192.168.0.1 (active) eth1 port

Summary Of Structure

In phdcci, one mail server contains :

a) Iptables Firewall

b) Squid + Sarg

c) Qmail + 2 Instance

d) Local DNS

1. Mails are directly land to the mail server.

2. When phdcci user send a mail to outside domain ,1st instance passes to 2nd instance and 2nd instance of qmail send it to the outside destination.