NetCrypt is described as 'Small Open Source command line file-transfer utility providing authentication, confidentiality and integrity validation while still maintaining top-notch performance and transfer speed between machines' and is an app in the network & admin category. There are four alternatives to NetCrypt for a variety of platforms, including Linux, Mac, Windows, BSD and Cygwin apps. The best NetCrypt alternative is OpenSSH, which is both free and Open Source. Other great apps like NetCrypt are netcat, socat and Dropbear SSH Server and Client.
OpenSSH is a free version of the SSH connectivity tools that technical users rely on. OpenSSH encrypts all traffic (including passwords) to effectively eliminate eavesdropping, connection hijacking, and other attacks.
Netcat is a featured networking utility which reads and writes data across network connections, using the TCP/IP protocol. It is designed to be a reliable "back-end" tool that can be used directly or easily driven by other programs and scripts.
socat, SOcket CAT, is a relay for bidirectional data transfer between two independent data channels. Each of these data channels may be a file, pipe, device (serial line etc. or a pseudo terminal), a socket (UNIX, IP4, IP6 - raw, UDP, TCP), an SSL socket, proxy CONNECT...
Dropbear is a relatively small SSH 2 server and client. It runs on a variety of POSIX-based platforms. Features: A small memory footprint suitable for memory-constrained environments - Dropbear can compile to a 110kB statically linked binary with uClibc on x86 (only minimal...
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