Ubuntu Unleashed 2019 Edition: Covering 18.04, 18.10, 19.04

or other optical storage. Ubuntu FTP Server Packages The Very Secure FTP server, vsftpd, is licensed under the GNU ...

anonymous FTP users. The FTP user entry in /etc/passwd looks like this: Click here to view code image ...

ftp:*:12276:0:99999:7::: ... The shadow file (only a portion of which is shown in Listing 34.1) contains additi ...

Click here to view code image matthew@seymour:~$ sudo service vsftpd status You can also use a shorter ver ...

using SSH. See the “Telnet Versus SSH” section in Chapter 19, “Remote Access with SSH, Telnet, and VNC,” and ...

chroot_list_enable and chroot_local_user options, this file contains a list of users who are either allowed ...

maintenance cycle. Another default is that remote clients will be logged out after five minutes of idle acti ...

allow jane ubuntuforums.org deny john naughtysite.net allow ahmed 192.168.101.* allow ahmed *.ubuntu.com allo ...

CHAPTER 35 Handling Email IN THIS CHAPTER How Email Is Sent and Received Basic Postfix Configuration and Operat ...

or Qmail. SMTP allows each computer that the email passes through to forward it in the right direction t ...

undeliverable. The Mail Transport Agent Several MTAs are available for Ubuntu, each with its pros and cons ...

use Postfix instead and carry on working correctly (because Postfix uses a Sendmail wrapper, which deceives ...

With maildir, each mail folder has three subfolders: /cur, /new, and /tmp. Each email is kept in ...

SMTP is a server-to-server protocol that was designed to deliver mail to systems that are always conne ...

customize the service. Having the process handled by different applications gives you great control over how you ...

Internet protocols to use: all If you make a mistake and answer a configuration question incorrectly, ...

relayhost = mynetworks = 127.0.0.0/8 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all A useful ...

myhostname=mail.matthewhelmke.com This works with the parameters listed in the Postfix main.cf file: Click here ...

find it difficult to deliver messages to some locations (such as some underdeveloped areas of the world, ...

This stops any unwanted telephone calls from being placed! TIP If you use networking over a modem, ther ...