drftpd | Distributed Daemon FTP Server | FTP library
kandi X-RAY | drftpd Summary
kandi X-RAY | drftpd Summary
DrFTPD is a Distributed FTP server written in Java, it's unique because it doesn't handle transfers like normal FTP servers. DrFTPD is set up with a master and a collection of file transfer slaves that handle the file transfers, you can have as many file transfer slaves as you like. Some names that could be used to describe this is ftp site merger, ftp cluster, ftp grid or multi site bnc, but the only accurate term is "distributed ftp daemon.". What is unique with DrFTPD is that it works with existing FTP client software, you can use the FTP client application you're used to and make site-to-site (FXP) transfers with normal FTP servers. The only exception to DrFTPD is with passive (PASV) mode. For this the client needs to support the PRET command. PRET is already supported in several of the most widely used FTP clients. You can often do without PASV mode unless you are behind a firewall which you don't have access to or you need to FXP with another DrFTPD server or a server which doesn't support PASV. If you merge 10*1gbit sites, you don't get a 10gbit site but you get a 10x1gbit site. What this means is that the aggregate bandwidth is 10gbit but a single transfer will never go above 1gbit. DrFTPD's approach to the file system and file transfers is what makes it unique. Each file can, and will, end up on a different transfer slave. DrFTPD uses transfer slaves for all file storage and transfers, it supports but doesn't require a file transfer slave to be run locally. The master therefore uses very little bandwidth. FTP control connection, data connections for file listings and instructions to the slaves, are the only operations that consume bandwidth on the master. The master has a filelist that keeps track of which slaves have which files and information about those files. A file can exist on multiple slaves for redundancy and more bandwidth. When a slave is started, it gathers a filelist and sends the entire list to the master. The master merges this list with it's existing file list and makes sure that it's in-sync with it's existing file list by adding and removing files to it's own list. Because the master doesn't have any files locally, modifications to the virtual filesystem cannot be done easily from outside of the DrFTPD application. Neither the master or the slaves need root privileges. The virtual filesystem contained on the master of which slaves files reside on is the authoritative source for information about the files. Items like lastModified, size, user, and group, are all kept on the master. The slave does however require exclusive write access to the storage area, otherwise it will become unsynced with the master filelist and errors can occur. The slave is kept thin/dumb and isn't told anything about users. It simply processes the instructions that are given to the master and knows nothing about the ftp protocol. This is an advantage as it simplifies administration of the slaves.
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Top functions reviewed by kandi - BETA
- Performs a SITE RESCAN operation
- Check a single file
- Get the SFV info for the given directory handle
- Main server
- Convert a glob expression to a string equivalent
- Executes a ftp command
- Change information about a site change
- Parse an amount of bytes
- Search for an action
- Get argument list
- Entry point to the site
- Rename a file
- Perform an advanced search
- Handle a status command
- Handle a user
- Called when a pre - b - bundle is found
- Runs the remote slave
- Nuke a directory
- Re - merges a list of files into the destination directory
- Do a PASV command
- Change a field change
- Nuke of a directory
- Entry point of the group
- Navigate to the sites
- Read the properties
- Sets the site slave command
drftpd Key Features
drftpd Examples and Code Snippets
Community Discussions
Trending Discussions on FTP
QUESTION
I'm trying to download a .xlsx
file from a ftp, and converting it to a .json
using XSLX module, and then writing it to a file. All this using Node.js
ANSWER
Answered 2022-Apr-16 at 22:38sheet_to_json
requires a worksheet object, so you actually need to read the contents first, and then pass the desired worksheet
try reading the contents as a buffer, and then pass the desired sheet once the stream is finished:
QUESTION
I have a problem with trying to send files using a PHP FTP function.
I am attempting to send files (PDFs) from a webserver (UNIX) to a Windows server in an office using a PHP function running on the webserver. FTP has been installed on the Windows server.
The function connects to the office server and logs in ok. However, as soon as the function attempts to do anything (eg list the content of the office server directory) I get an error (such as... ftp_nlist(): php_connect_nonb() failed: Operation now in progress (115)
). The destination server logs an error: [Administration Server] Couldn't bind on 192.168.1.1:14148. Reason: EADDRINUSE - Local address in use. Retrying in 1 seconds
. I have tried looking these errors up but have ben unable to find anything that helps me.
The connection needs to be passive and from other answers in SO I believe that it is important to stop the passive mode using the wrong IP address. So that is in there now too (ftp_set_option($ftp_conn, FTP_USEPASVADDRESS, false)
) but I still get the same error.
I get the same problem when using an SSL or non-SSL connection.
I have managed to get a response to ftp_systype which tells me "UNIX".
Other people have talked on SO about intermittent problems that cause this error (eg "php_connect_nonb() failed: Operation now in progress (115)" happens intermittently) but for me it is a constant error. I have checked and the FTP server is set to return the external IP address when passive mode is established. I also understand that there were some issues in older versions of PHP. I have PHP v7.4 on the webserver.
I can connect (and copy files) without problems using Filezilla and WinSCP, just not when using the PHP function.
The PHP function contains:
...ANSWER
Answered 2022-Apr-04 at 06:19Make sure the hosting of your webserver allows outgoing FTP data connections.
FTP data connections (in the passive mode) need separate port range opened in the firewall, not just the control connection port 21.
See my article on FTP connection modes to details.
QUESTION
This is a code snippet.
FtpDownloader.java
...ANSWER
Answered 2022-Mar-02 at 05:44I think I got what you're trying to do. First of all, FTP doesn't itself let you use multiple connections simultaneously (For ref Uploading files in parallel with Java FTP client).
What you're doing is not thread-safe as well. So I advise you to make parallel connections and download from there.
QUESTION
I use Visual Studio Code and WinSCP. When I open .scss file via WinSCP the file is opened automatically by VSC – It's ok. There is an extension Live Sass Compiler to I could compile .scss into .css file. The problem is that .css file is created in temporary folder with random number so I always must upload the file manually by drag the file from the folder to FTP client.
Is it there any solution to upload the .css file automatically on save from the temporary folder? Thank you in advance for a help.
...ANSWER
Answered 2022-Feb-10 at 13:38- Download the files to a local folder.
- Have WinSCP monitor the folder and automatically upload any modifications (including new files).
- Edit the files locally (and have WinSCP upload the changes, including the generated files).
For your literal question, there's WinSCP feature request.
QUESTION
I have changed the user under the file /etc/php/7.3/fpm/pool.d/website-name.conf
...ANSWER
Answered 2022-Feb-16 at 00:43Btw it looks like about user permission (not owned by fpm users), please take a look into the config files of nginx & php-fpm ( current example we used nginx) and the user is ftplatinopeeyush
Check your files / wordpress user permissions, make sure your wordpress user are
ubuntu
(you can check withls -l
), and make sure your file placed on user home directory :/home/ftplatinopeeyush
(or anywhere home directory and it was writable by theftplatinopeeyush
user)go to
/etc/nginx/nginx.conf
check the parameteruser
, please make sure the user iswww-data
example:
QUESTION
Is that possible to deploy the Laravel web application to shared hosting using GitHub Action & GitHub FTP Deploy? If possible how should I change the.github\workflows\master.yml?
...ANSWER
Answered 2022-Feb-12 at 02:26Looks like you're very close but are missing 2 important steps: set up a temporary PHP environment, and use that environment to install your dependencies (Composer).
GitHub Actions Setup
This guide assumes you have a working Laravel installation, a GitHub account, and a shared hosting account that you can access via FTP using a username/password.
I found this video https://www.youtube.com/watch?v=UNWIXYSZfZY helpful to get a basic understanding of how to deploy a simple application. To make this answer helpful to a wider range of people, I'll give a quick outline of my setup. There really aren't any Laravel specific steps.
Workflow directory set up
Create the directories .github\workflows
at the root of your project. In the workflows
directory, create a yml file named after the branch you want to push to your shared hosting account. Ex. master.yml
, staging.yml
, development.yml
etc. If you only have a single branch then just create one file. The name is important and should match the name of the branch.
Design your workflow
This is very dependent on your project but assuming you have a basic Laravel application without the need for additional components such as Node, then this is a basic GitHub Action that works for me on a variety of projects.
A basic action file consists of 2 sections, the workflow, and the jobs. A workflow triggers the jobs.
Workflow
Lines 1-4 say this will run each time we push
to the master
branch.
QUESTION
I have an issue while connecting to a FTPS server with TLS/SSL Implicit encryption via PROXY.
I am following the custom Apache FTPS Client (commons-net-3.8.0) solution provided from Java FTPS client through HTTP proxy
My server connection is working, but unable to list or file transfer, getting below error:
425 Can't open data connection for transfer of ""
Data connection / File transfer is working fine from Windows WinSCP and Linux LFTP.
WinSCP Log:
...ANSWER
Answered 2022-Feb-07 at 15:21I do not know your network/proxy setup, so I cannot really explain the behaviour of FTPClient
. Your server seems to return IP address of the proxy in the PASV
response. The default NAT resolver of FTPClient
decides that the address is wrong (is it a local network host address?) and choses to use original FTP server's address instead.
While WinSCP does not do that and connects to the IP that the server returned.
To avoid the NAT resolver from messing with the address, use FTPClient.setPassiveNatWorkaround
(though that's deprecated):
QUESTION
I have a remote FTP server where I want to upload new firmware images. When using the Linux ftp
client I can do this using put
the server then responds with status messages like:
ANSWER
Answered 2022-Feb-03 at 06:32If you want to check the response programatically, check the result of FTP.storbinary
:
QUESTION
I was given some code of a previous intern and I'm supposed to find out what it does.
It is a snakemake pipeline that has a my_pipeline.yaml
file which is supposed to contain all the 'general packages needed for the pipeline'
The file looks like this:
ANSWER
Answered 2022-Feb-03 at 03:59For Bioconda packages, it is usually better to look at the Bioconda Package Index rather than Anaconda Cloud (though admittedly the metadata here could be improved). Visiting the Bioconda pages for the perl-lwp-protocol-https and perl-net-ftp packages will lead to links to their respective upstream description pages.
Bioconda Page Meta::CPAN Page perl-lwp-protocol-https LWP::Protocol::https perl-net-ftp Net::FTPBroadly, these are Perl modules that implement functions to communicate with remote servers, which usually means downloading or uploading files in the context of a Perl script.
wget
does not depend on Perl or those modules. So, it is still unclear the particular purpose of those. Maybe don't rule out the possibility that they aren't actually needed - sometimes people start writing things one way and then forget to remove components that they no longer require.
QUESTION
I want to put a file to FTP address automatically in a scheduler.
I have a JSON object so I can create an XML from this.
I can create a xmlString
with a code below.
I want to put the XML in the xmlString
to a file abc.xml
at an FTP address. How I can do it?
ANSWER
Answered 2022-Jan-26 at 13:12If I understand your question correctly, you want to store a string to a file on an FTP server.
- Convert your string to an
InputStream
:
How do I convert a String to an InputStream in Java? - and then upload it:
Uploading byte array to FTP in Java
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install drftpd
You can use drftpd like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the drftpd component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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