Setting Up a Dial-In PPP Server
You can also set up a simple service on your Linux system to provide PPP for dial-in users. Although commercial ventures such as ISPs must necessarily invest in leased lines, switching service, modem pools, and routers, you can easily configure a standalone Linux box to answer a modem and start PPP. The general steps may include
Selecting a phone line, modem, and serial port
Properly configuring the modem to answer incoming calls (using AT commands and saving the modem profile with AT&W)
Installing a line-monitoring application (such as agetty, getty, or mgetty) to watch a serial port (in /etc/inittab)
Possibly configuring a DNS server (see Chapter 14, "Domain Name Service and Dynamic Host Configuration Protocol," ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access