Linux® Quick Fix

conf FileFTP Security IssuesTroubleshooting FTPTutorialConclusion The File Transfer Protocol (FTP) is one of the most common means of copying files between servers over the Internet. Most Web-based download sites use the built-in FTP capabilities ...

FTP data channel, TCP Port 20: This port is used for all subsequent data transfers between the client and server. In addition to these channels, there are several varieties of FTP. Types of FTP From a networking perspective, the two main types o...

FTP frequently fails when the data has to pass through a firewall, because firewalls are designed to limit data flows to predictable TCP ports and FTP uses a wide range of unpredictable TCP ports. You have a choice of methods to overcome this. Not...

If you need a refresher, Chapter 6 covers how to do this in detail. It is best to use the latest version of VSFTPD. When searching for the file, remember that the VSFTPD RPM's filename usually starts with the word "vsftpd" followed by a ve...

" You can find a full description of how to configure these versions of Linux for VSFTPD in Appendix III, "Fedora Version Differences."...

You can always test whether the VSFTPD process is running by using the netstat -a command, which lists all the TCP and UDP ports on which the server is listening for traffic. This example shows the expected output: [root@bigboy root]# netstat...

VSFTPD reads the contents of its vsftpd.conf configuration file only when it starts, so you'll have to restart VSFTPD each time you edit the file in order for the changes to take effect. This file uses a number of default settings you need to know a...

FTP has a number of security drawbacks, but you can overcome them in some cases. You can restrict an individual Linux user's access to non-anonymous FTP, and you can change the configuration to not display the FTP server's software version informatio...

Initial setup failures could be caused by firewalls along the path between the client and server blocking some or all types of FTP traffic. Typical symptoms of this are either connection timeouts or the ability to use the ls command to view the conte...

FTP has many uses, one of which is allowing numerous unknown users to download files. You have to be careful, because you run the risk of accidentally allowing unknown persons to upload files to your server. This sort of unintended activity can quick...

If data encryption security is of great importance to you, then you should probably consider SCP as a possible alternative. You can find more information on it in Chapter 17, "Secure Remote Logins and File Copying."...