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FTP Server

lazars — Tue, 03 Sep 2019 13:46:55 +0000

FTP server may refer to the physical machine where data is stored, but it is commonly used for software application that enables the exchange of files via the File Transfer Protocol. The FTP uses the client-server model to enable the exchange of files over the Internet. This means that the FTP server establishes an FTP connection to accept the requests sent from remote FTP clients (like FileZilla) and executes them, thus letting you download or upload files on the server.

FTP Server Access Modes

FTP servers can be easily set to anonymous or authenticated access mode. The anonymous mode gives users free access to the FTP server via the default “anonymous” account. The authenticated mode requires a password and account, of course. The FTP server could be configured to allow different levels of access, you can block users from entering certain directories or performing certain actions. You can also disallow some users from using your FTP server at all. If needed you can use secure connections like SFTP or FTPS.

Upload Files Via Control Panel

If you have a web hosting account with us you can quickly create and access your FTP accounts by just entering our new in-house developed hosting Control Panel and opening the FTP Manager. There you can edit your current account and create a new one by simply filling in the username and password for your FTP. From this section, you can download 3 free FTP clients (FileZilla, Cyberduck, and CoffeeCup Free FTP) that will make it easy for you to manage the files on the server directly from your computer via a user-friendly graphic interface.

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Web FTP

lazars — Tue, 03 Sep 2019 13:45:34 +0000

Web FTP or Online FTP refers to manipulating and operating files over the FTP protocol in an online environment. More precisely, when it’s done in a web browser, rather than a dedicated desktop FTP client. This approach has several advantages. For example, if you are on the road and don’t have access to your own computer, you can still access all your website files from any PC with a web browser. You’ll have some limits in functionality but it’s still a very useful option to have.

How Does Web FTP Work?

The online Web FTP applications usually look and feel like their desktop counterparts. They’re kind of constrained in terms of the user interface because after all, they run in the browser. In every other aspect, the Web FTP clients use and work by the same principles as any desktop client. All of them are using the standard FTP protocol and will work well with most hosting companies. Some of the desktop FTP clients may have more advanced functionality that’s not available in the web FTP programs. For a quick upload or a file modification on the go though, they do the job perfectly well. Read on to find out about the pros and the cons of both solutions.

Web FTP vs. Desktop Clients

Unlike the full-fledged desktop FTP client software like FileZilla etc., most free web FTP clients lack in security options. For example, some of them don’t support SFTP or any other security/encryption protocol. This may not be a deal-breaker for you but it’s not a good idea to use it for your company website. If you have to manipulate confidential files it’s best to look into a more secure solution than a web FTP one. On the other hand, web FTP applications give you flexibility in the sense that you don’t have to worry about bringing your own machine, or what operating system and software the one you’ll be using on the road has.

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FTP Port

lazars — Tue, 03 Sep 2019 13:44:32 +0000

FTP by definition uses the TCP transport protocol exclusively and doesn’t use the UDP for its transport purposes. Usually, an application layer protocol will use one or the other. One important exception to that rule is DNS or Domain Name System. FTP also is kind of different due to the fact that it uses two ports to complete its task. It usually utilizes port 20 for transferring data and port 21 for listening to commands. It’s also true that transferring data over FTP port 20 is not mandatory and it can be done through another port as well. This is where it gets confusing for many users. FTP has two modes of operation – active and passive. Both are started by the FTP client and then acted upon by the FTP server.

Active FTP

Inactive mode the FTP client connects from a random unprivileged port (N, which is usually 20) to the FTP server’s command FTP port, which is port 21. Then, the client starts listening to port N+1 and sends a command to the FTP server. After that, the server connects back to the client’s specified data port from its local one. From the server-side firewall’s point of view, to support FTP in active mode these ports have to be opened: FTP server’s port 21 from anywhere (Client initiates connection); FTP server’s port 21 to ports > 1023 (Server responds to client’s control port); FTP server’s port 20 to ports > 1023 (Server initiates data connection to client’s data port); FTP server’s port 20 from ports > 1023 (Client sends ACKs to server’s data port).

Passive FTP

In this mode, the FTP client initiates two connections to the FTP server. We need to keep in mind as well that both of these connections are using ephemeral ports themselves, and that’s ok. By opening two connections, or sockets with the FTP server, the client is able to resolve the issue of its firewall denying access to the FTP server and initiating contact on one of the client’s high ephemeral ports. One of the connections opened by the client will contact the server on FTP port 21, and issue it the PASV (passive) command, vice the normal PORT command when using active FTP. Now what happens is that the FTP server opens an ephemeral port and issues the PORT command to the FTP client. With this in hand, the client then starts a connection back to the server FTP port for the data transfer.

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FTP Client Software

lazars — Tue, 03 Sep 2019 13:43:19 +0000

The FTP client software is just like every other software application on your computer. It’s installed in the same way, easy to configure, and has a user-friendly graphic interface. The purpose of the FTP client is to give you straightforward and fast access to your files on a remote server directly from your desktop. Once you’ve set your FTP client software you can log in to your account with your username, password, and server info (hostname). Now you can upload and download files instantly, just using Copy and Paste, or simply dragging items through your screen. Most FTP clients also let you edit files from your server remotely, without even downloading them. You can easily start secure FTP sessions when you transfer your files using SSL, TLC, or SSH.

FileZilla FTP Client

FileZilla is a multi-platform open-source FTP client that can run on Windows, Mac, Unix, Linux, and BSD. Its interface is very intuitive and offers many extensive features including remote editing of files on the server. FileZilla is always fast and reliable, available in multiple languages and enables you to transfer big files (more than 4GB) and synch your directories. This FTP client software supports FTP, SFTP, FTPS, and FTP over SSH. Besides, it can be managed via command lines and can be used in passive mode.

Cyberduck FTP Client

Cyberduck is another great free FTP client for Mac OS X and Windows. It offers directory synchronization and remote file editing that you can easily manage in many languages. The transfer protocols supported by Cyberduck include FTP, FTPS, SFTP, HTTP(S), WebDAV, Google Drive, Cloud Files, and Amazon S3. Cyberduck is written in Java and has enabled the drag and drop function for the transfer of files and Growl notifications. Remote compression for SFTP, resume, and passive mode is also supported by the Cyberduck FTP client software.

CoffeeCup Free FTP

You can choose between the FTP, SFTP, FTPS, and HTTP(S) protocols when you use the CoffeeCup Free FTP Client software. It offers a handy Statusbar, full local and remote file management, and backup with automatic ZIP file creation. Setting up your FTP account with the CoffeeCup Free FTP is very easy and fast. File transfers could be canceled or paused and files simply be handled by dragging and dropping. For extra efficiency, you have local and remote bookmarks that can be used simultaneously.

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FTP Over SSH

lazars — Tue, 03 Sep 2019 13:42:18 +0000

SSH (Secure Shell) is a standard protocol that provides encrypted data transmission over a network. To use SSH you need an SSH client that can communicate with SSH servers. The protocol has two key modifications: SSH-1 and SSH-2. SSH enables secure file transfer (via SFTP or SCP), tunneling, and port forwarding. The Secure Shell protocol is commonly used for encrypting otherwise insecure FTP connections.

FTP over SSH

FTP over SSH is a method of securing your FTP connection. It differs from the SFTP protocol, which is an extension to SHH that creates a constantly encrypted connection using SFTP servers. FTP over SSH takes the unencrypted FTP traffic but sends it via an encrypted SSH tunnel (sends the FTP protocol data via the SSH protocol).

FTP over SSH or SFTP

FTP over SSH is one of the ways to protect your data when you use FTP to transfer files. However, establishing an FTP connection over SSH is a particularly complicated and difficult task that requires advanced technical skills. Unless it is really necessary, you’d better use SFTP, which also utilizes SSH, so it is just as secure as FTP over SSH (even more as it encrypts the passwords and the data transmitted) and it is supported by most modern FTP clients.

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SFTP

lazars — Tue, 03 Sep 2019 13:40:50 +0000

FTP is an old protocol that isn’t designed for secure data transfer and is very vulnerable to attacks. For that reason, other, “safe” versions of the protocol are eventually created, along with new protocols. One of them is the SFTP (SSH File Transfer Protocol or Secret File Transfer Protocol) which is used for file transfer and management instead of the FTP. SFTP is not an enhanced, “secure” version of the FTP, it’s rather a new protocol that has similar functions for the transfer of files.

How Does the SFTP Work?

The SFTP uses SSH to transmit files over a network safely. In contrast to the FTP, this protocol encrypts all the transmitted data, passwords, and commands. The disadvantage of the SFTP is that it’s not supported by all FTP clients, so you need a client that supports both FTP and SFTP. SFTP was created more like an extension of the SSH-2protocol that enables the transfer of files over SSH and other protocols like the TLS. SFTP is also widely supported by most platforms. The SFTPs connection is always secured but requires a secure underlying protocol, usually SSH.

FTPS

Unlike the SFTP protocol, FTPS is an extension to the FTP that enables encrypted FTP sessions upon request by using the AUTH TLS and AUTH SSL commands. This way, you can transfer your files using SSL or TLS connections. Like HTTPS, FTPS also requires a key certificate. SSL and TLS are also widely used over the Internet, but not supported by all FTP servers. You can choose between using an implicit FTPS connection that always encrypts the transferred data or explicit FTPS that allows you to start both encrypted and unencrypted sessions.

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