User`s manual

4
4. Managing Communications
In this chapter, it explains how to configure the RTU controller’s communication functions.
The following topics are covered in this chapter:

Telnet/FTP
 Enabling the Telnet/FTP Server
 Disabling the Telnet/FTP Server

DNS

Web Service—Apache

Installing PHP for Apache Web Server

IPTABLES
 Observe and Erase Chain Rules
 Define Policy for Chain Rules
 Append or Delete Rules

NAT
 NAT Example
 Enabling NAT at Bootup

Dial-up Service—PPP

PPPoE

PPP over Cellular

NFS (Network File System)
 Setting up the RTU Controller as an NFS Client

Mail

OpenVPN