Unix Advanced [Electronic resources] نسخه متنی

Serving Files with FTP

Code listing 5.7. Activating FTP support on Fedora Core.

[chrish@dhcppc1 ~]$ cd /etc/xinetd.d
[chrish@dhcppc1 xinetd.d]$ sudo vi gssftp
. . .
[chrish@dhcppc1 xinetd.d]$ ps ax | egrep
 xinetd
2032 ?        Ss     0:00 xinetd -stayalive
 -pidfile /var/run/xinetd.pid
20162 pts/2    S+     0:00 egrep xinetd
[chrish@dhcppc1 xinetd.d]$ sudo kill HUP
 2032

FTP was, until the advent of the World Wide Web, the most popular method of transferring files across the Internet.

Like Telnet, FTP is insecure; the user ID and password are sent across the network in plain text. We'll look at a secure replacement for FTP access when we talk about OpenSSH later in this chapter.

Also as with Telnet, the user ID and password you use to access the FTP server are the same user ID and password you use for logging in to the system.

Code listing 5.8. Activating FTP support on Mac OS X.

bender:~ chrish$ cd /etc/xinetd.d
bender:/etc/xinetd.d chrish$ sudo vi ftp
Password:
. . .
bender:/etc/xinetd.d chrish$ sudo kill -HUP
 $(cat /var/run/xinetd.pid)

To enable FTP access (xinetd)

Fedora Core and Mac OS X use the xinetd super-server to control FTP access.

To enable FTP access (inetd)

FreeBSD and Cygwin use the inetd super-server to control FTP access.