Free secure ftp information software for linux

Java + information flow (Jif in short) is a security-typed programming language that extends Java with support for information flow control and access control, both at compile time and at run time.

The source code for the Jif compiler and run-time system is now available for download. Jif is written in Java and is built using the Polyglot extensible Java compiler framework.

Static information flow control can protect the confidentiality and integrity of information manipulated by computing systems. The compiler tracks the correspondence between information the policies that restrict its use, enforcing security properties end-to-end within the system. After checking information flow within Jif programs, the Jif compiler translates them to Java programs and uses an ordinary Java compiler to produce secure executable programs.

Jif extends Java by adding labels that express restrictions on how information may be used. For example, the following variable declaration declares not only that the variable x is an int, but also that the information in x is governed by a security policy:

int {Alice→Bob} x;

In this case, the security policy says that the information in x is controlled by the principal Alice, and that Alice permits this information to be seen by the principal Bob. The policy {Alice←Bob} means that information is owned by Alice, and that Alice permits it to be affected by Bob. Based on label annotations like these, the Jif compiler analyzes information flows within programs, to determines whether they enforce the confidentiality and integrity of information.

Pure FTP Manager allows a user to access multiple FTP chrooted sites with a single username and password. The program uses pure-ftpd and PostgreSQL for FTP and authentication. A site is chosen by adding @sitename to the users login

Quinti Secure Contact Form is a contact form for Web pages that is not vulnerable to robots who would abuse such forms for sending spam.
It uses both JavaScript field validators and CAPTCHA for verifying the validity of the sender. Quinti Secure Contact Form is easy to install and configure, and uses valid XHTML 1.1.
I have been attacked thousand times by spammers from my contact form, they use robots and take advantage of certain vulnerabilities of the mail forms to send their spam, and fill up my mailbox up to such an extent that they make your mail practically useless.
There are two ways of tackling this problem: Introducing a CAPTCHA validated through JavaScript, as i explain later.
And introducing certain functions in PHP that prevent these attacks, as you will see in the examples below
At the moment, go to the problem.
Main features:
- Invulnerable secure antispam contact form,
- JavaScript field validator in php (to insert multi-language variables and other variables, if you wish)
- Prevent spammers from using your form to send garbage, guaranteed.
- CAPTCHA to avoid Javascript validated Spam
- Easy to install and configure
- Valid XHTML 1.1

Secure Back Door (SBD) is a tool that provides ultra-secure and minimal access to a computer, which allows you to run a single command based on a one time key. It is good if you dont want to have an SSH server running all the time, and only want to start it when needed. Because it has only a few lines of code, it is hoped that it will be less susceptible to security exploits than a program like SSH.
The protocol is detailed to an extent in the text file PROTOCOL, I will update it with more details as I have time, but the most important details are included already.
If you are a crypt analysis, or just like a challenge, I appreciate anyone who is willing to look through the protocol and/or code and point out possible security implications and flaws in design!
Enhancements:
- Fixed a few minor compiler warnings
- Updated license year to 2005
- Uncommented execution code in sbdd, so now sbdd will execute incoming commands
- Updated README documentation for compilation

Secure FTP is a client application that allows for a 128-bit encrypted secure connection to be made to a server that supports FTP over SSL (or FTPS).
The application can be run via its graphical user interface (GUI) or from the command-line interface (CLI), allowing for headless (scriptable) operation. This makes Secure FTP a great option for both novice and advanced users.
The client is fully RFC 2228 compliant and offers both types of SSL connection options: explicit and implicit, which means more server compatibility.
Secure FTP is free to use for noncommercial use. Those wishing to use the client for commercial purposes are granted a license free of charge for 30 days.
The client is supported on Windows, Mac OS X, and any Unix platform where a Java 2 runtime environment (version 1.4+) is present. It was written in 100% pure Java.
Enhancements:
- The software was translated into French.
- Minor bug fixes and library updates were done.

Secure Messaging is a Web-based, alternative mail system for sending and receiving messages.

Use secure messaging to send and receive messages from a alternative web-based mail system. Using the secure messaging system no actual mail is transmitted through any 3rd party servers.

Only an optional message notice is sent to the recepient, the user needs to visit the site in order to read the message.

Normal SMTP mail can hit multiple servers and can possibly be read, stored, or changed anywhere within the process.

Setup secure messaging on an SSL enabled website to enhance the privacy even more.

iFTPd, Independent FTP Daemon, is an open source FTP server written in Java. Independent FTP Daemon features platform independence, system independence, ruggedness and a virtual file system.
The target audience of the FTP server is for those admins that need to be able to share files without having to install several other programs and databases and without having to configure the rest of the system.
Main features:
- Platform independence (Where do you want your JVM to go today?)
- System independence
- Does not require any users / groups on the host system.
- Does not require an SQL database.
- Does not does have weird and wonderful dependencies that must be downloaded from 500 different places.
- Ruggedness
- Once started, only the admin can stop iFTPd
- Virtual file system
- Create virtual file links, virtual directory links
- Merge several directories into one virtual directory
- Completely transparent to the user
- Users and groups
- Firewall friendly
- Multithreading
- Text file-based configuration
- Telnet-based status monitor
- HTML status monitor
Installation:
Unpack iftpd.zip.
Check that conf/iftpd.conf is to your liking.
Make at least one group in conf/groups/.
Make sure that at least one of the groups has a root directory.
"/stash/ftp/" r+ "/"
Make at least one user file in conf/users/.
Start iFTPd.
Linux users run: iftpd.sh
Enhancements:
- SSL (AUTH TLS) support has been added.
- Old scripts have been replaced with iftpd.sh.
- ALLO has been added for binary mode, but untested because no clients support it.
- Groups can contain other groups.
- SITE UTIME support has been added.
- Group files can have empty lines.
- CLNT support has been added.
- StatusToHtml (#CLIENTNAME#) has been added.
- The rename bug has been fixed (only worked with full paths before).
- Aborted transfer notification should finally be fixed.
- FEAT support has been added.
- IdleStrictChecking has been added in iftpd and iftpd.conf.

Pure FTP Server is a fast, production quality, standards-conformant FTP server based on Troll-FTPd. Pure FTP Server has no known vulnerability, it is trivial to set up, and it is especially designed for modern kernels.
Features include PAM support, IPv6, chroot()ed home directories, virtual domains, built-in ls, FXP protocol, anti-warez system, bandwidth throttling, restricted ports for passive downloads, an LDAP backend, XML output, and more.
Beginners can install a Pure-FTPd server in 5 minutes. It can be as simple as installing the package, typing "pure-ftpd &" and... thats all. You already have a running server, and clients can start to connect.
Theres no need to review any long and complex configuration file, where possible mistakes could have security and reliability implications. Pure-FTPd uses simple command-line switches to enable the features you need.
You can limit the number of simultaneous users, limit their bandwidth to avoid starving your ADSL or cable-modem link, hide system files (chroot), have upload/download ratios, and moderate new uploads.
Custom messages can be displayed at login-time (even changing fortune files) and when an user enters a new directory. Also, to avoid your disks being filled up, you can defined a maximal percentage, and new uploads will be disallowed once this percentage is reached.
The FXP (server-to-server) protocol is implemented. It can be available for everyone, or only for authenticated users.
Kiddies are using common brute-forcing tools that are trying to discover hidden directories. Pure-FTPd provides a protection against this. Anonymous access is secure by default. For instance, users cant access dot-files (.bash_history, .rhosts, ...) unless you explicitely enable this.
And to watch whos doing what, the pure-ftpwho command shows a table with currently active sessions, how much bandwidth is taken by every user, what files they are uploading or downloading, where they are coming from, etc.
Enhancements:
- User names can now be up to 127 characters long.
- Compilation with PAM support has been fixed on Mac OS X, and the MySQL PASSWORD() function can now be used with MySQL >= 4.1.
- Logging now has the correct timezone.
- Support for charset conversions (RFC2640) has been implemented. Large files are now handled by default, using sendfile64() if possible. SITE UTIME and OPTS MLST have been implemented.
- MySQL queries can now include multiple statements and call MySQL 5 stored procedures.
- Transferring a lot of small files is now much faster than in previous versions.