A Cost Effective Solution in Intercomputer Communication
András Keszthelyi · RePEc: Research Papers in Economics · 2007
The communication protocols used on the internet are plaintext based. Even the usernames and corresponding passwords can be eavesdropped easily. Because of the continuous competition in business life enterprises may want (or better to say: should) improve the security of their data security including their communication. Firms are interested in seeing the sensitive data of their concurrent enterprises of course and nobody can avoid this if there are easy possibilities for eavesdropping. There are several methods to secure the different kinds of intercomputer communications of which the SSH is the most effective in general. SSH improves the security of intercomputer communication sending the originally plaintext data via strong encrypted tunnels so not only the contents of the communication is hidden but even the original protocol/activity itself as well. There is no need for special hardware or software for this, even free software tools are available both for Linux and Windows both on server and client sides. SSH can be used from behind foreign firewalls if any outgoing port is open even if the firewall uses NAT. The SSH protocol provides authentication of users and computers, encryption and data integrity over network transmission.