auth trial software / shareware for linux

Secure FTP Factory project is a set of Java based client components for exchanging data between machines. Including FTP (File Transfer Protocol), FTPS (FTP over SSL) and SFTP (FTP over SSH) components developers will appreciate the easy-to-use API making it possible to exchange data using just a few lines of code.
The FTP component offers complete FTP functionality including the ability to transfer files, rename files, delete files, create directories, transfer directories recursively and more. The FTPS (FTP over SSL) component offers all the features found in the FTP component with the added ability to encrypt FTP data using SSL (Secure Sockets Layer).
The FTPS (FTP over SSH) component offers all the features found in the FTP component with the added ability to secure all data transferred using a secure SSH2 channel. Using the FTPS or SFTP components you can be assured your data is protected as it travels over the Internet.
In addition to the FTP, FTPS and SFTP components Secure FTP Factory provides a file transfer scripting component named FTCL (File Transfer Command Line). This component allows you to write and execute scripts to perform FTP, FTPS and SFTP operations using nothing but a simple text editor and your operating system command line.
Main features:
- Support for JDK 1.2.2 and above
- RFC compliant - Fully compliant with RFC 959, RFC 1579 and RFC 2228.
- Secure file transfer - Encrypts sensitive data for total security (FTPS/SFTP).
- AUTH TLS and Implicit SSL support - FTPS component provides support for both AUTH TLS and Implicit SSL connections
- ZLIB compression support - Data is compressed for improved file transfer performance. (SFTP).
- Scripting support - Easily write scripts to automate file transfer tasks.
- Public-key authentication support - Authenticate with server using a private-key (SFTP).
- Transfer mode support - Includes both ASCII and Binary modes for transferring text or binary data.
- Firewall support - Easily connect to FTP servers from behind a firewall.
- Automatic transfer mode detection - Sets transfer mode automatically based on file extension.
- Multiple file transfer - Transfer one or more files matching a regular expression e.g. *.txt
- Directory transfer - Transfer entire directories recursively, automatically recreating directory structure on receiving side.
- Progress monitor - Built in event listeners to track the progress of file transfers including bytes transferred, total time and total bytes transferred.
- Timeout support - Generates an exception when connection to FTP server cannot be established or data cannot be read from FTP server within defined timeout.
- File transfer interruption - Ability to interrupt file transfers at any time.
- Message logging - Ability to stream messages exchanged between FTP client and server to a file.
- Memory based uploads - Ability to upload a file that exists in memory to FTP server.
- Memory based downloads - Ability to download file from FTP server and store in memory.
- Remote filesize and date - Easily query a remote file on FTP server for its size and last modification timestamp.
- Command execution - Send arbitrary commands to FTP server.
- Append support - Upload files to FTP server appending data sent to the end of a file.
- Resume support - Resume interrupted file transfers.
Version restrictions:
- 30 day Evaluation
Enhancements:
- This release updates various methods to provide true regular expression support.
- It adds an mdelete method to support deleting files matching a regular expression.
- It adds setContextAlgorithm, setContextAlgorithmProvider, setContextProtocol, setContextProtocolProvider, and setKeystoreProvider methods for controlling what X509 algorithim, TLS protocol, and security providers are used in the FTPS class.
- A delay found between authentication requests in the SFTP protocol has been removed.

milter-spamblocker is a lightweight, reliable and very fast Sendmail milter designed to reject SPAM and Internet worms going from trojaned/infected Windows computers (zombie hosts) around the world.
It blocks up to 99% of SPAM and up to 99.9% of Internet worms. You will not need to pay for the garbage traffic now. Its written in C.
Main features:
- external editable configuration file;
- whitelist by an IP address (in CIDR notation);
- whitelist by a PTR (reverse DNS) record;
- whitelist by an envelope sender email address;
- whitelist by an envelope recipient email address;
- SMTP AUTH support;
- adaptive anti zombie technology;
- real-time sender address verification with an autowhitelist;
- strictly RFC-2821 compliant MX callback engine;
- tolerance against non RFC-2821 compliant email servers;
- blocking of email messages with a spoofed senders email address;
- real-time recipient address verification with authoritative email stores;
- progressive slowdown of recipients email address brute force attacks;
- Sendmail virtusertable and mailertable features full support;
- safe anti bounce / backscatter technology;
- legitimate email messages friendly GreyListing with an autowhitelist;
- blocking of harmful attachments to prevent viruses from spreading;
- persistent cache engine;
- low level of false positives.