Ubuntu Unleashed 2019 Edition: Covering 18.04, 18.10, 19.04

(www.isc.org) and download and build the source code yourself. However, we recommend that you stay with ...

Setting the default and maximum lease times —default-lease-time 3600 and max-lease-time 14400 Other settings in the ...

you want a computer on your network to have a specific IP address or other information specific to th ...

A whole host of options can be used in dhcpd.conf: Entire books are dedicated to DHCP. The most comprehe ...

For example, when a wireless networking device is first recognized and initialized for use, the driver most ...

You can then use the ifconfig command or perhaps a graphical Ubuntu tool to set the device networking parameter ...

modem services. Just a few years ago, getting a dial-up connection working was difficult—hence, an entire ...

viewpoint, a small number of addresses can serve a large number of people because not everyone will be o ...

over copper telephone lines from a central office to individual subscriber sites (such as your home). Ma ...

supplied modem with an aftermarket modem if you want to spend the money. Either way, using a router ...

choose the type of firewall and IP masquerading to use. (You learned about IP masquerading in the “Usin ...

Configuring Dial-up Internet Access Most ISPs provide dial-up connections that support PPP because it is a fa ...

Many software modems do not work with Linux because the manufacturers do not release programming information ab ...

NIC ethereal—The GNOME graphical network scanner ufw—Ubuntu’s basic firewalling tool ifconfig—A tool that dis ...

CHAPTER 19 Remote Access with SSH, Telnet, and VNC IN THIS CHAPTER Setting Up a Telnet Server Telnet Versus ...

but is not activated by default. The server is not part of the default Ubuntu installation. This is because e ...

This might not be secure: Giving away version numbers is often not a smart move on a machine that might ...

blocked, you cannot use SSH. See Chapter 20, “Securing Your Machines,” for help doing this. Two different ve ...

The most basic use of the scp command is to copy a file from your current machine to a remote machine. ...

sftp is a mix between ftp and scp. Connecting to the server requires the same syntax as with scp—you can ...