Looking for a secure rlogin? Want to deter IP-spoofing, DNS-spoofing, and routing-spoofing? Want to run X11 connections and TCP/IP ports securely over an insecure network? Worried about your privacy? Then read this. Introducing SSH (Secure Shell) Version 1.0 Ssh (Secure Shell) is a program to log into another computer over a network, to execute commands in a remote machine, and to move files from one machine to another. It provides strong authentication and secure communications over insecure channels. Its features include the following: o Strong authentication. Closes several security holes (e.g., IP, routing, and DNS spoofing and listening for passwords from the network). New authentication methods: .rhosts together with RSA based host authentication, and pure RSA authentication. o All communications are automatically and transparently encrypted. Encryption is also used to protect against spoofed packets. o X11 connection forwarding provides secure X11 sessions. o Arbitrary TCP/IP ports can be redirected over the encrypted channel in both directions. o Client RSA-authenticates the server machine in the beginning of every connection to prevent trojan horses (by routing or DNS spoofing) and man-in-the-middle attacks, and the server RSA- authenticates the client machine before accepting .rhosts or /etc/hosts.equiv authentication (to prevent DNS, routing, or IP spoofing). o An authentication agent, running in the user's local workstation or laptop, can be used to hold the user's RSA authentication keys. o Multiple convenience features fix annoying problems with rlogin and rsh. o Complete replacement for rlogin, rsh, and rcp. Ssh is freely available, and may be used by anyone (see the file COPYING in the distribution for more details). There is no warranty of any kind, and patents may restrict your right to use this software in some countries. Ssh is currently available for anonymous ftp at the following locations ftp.funet.fi:/pub/unix/security/ssh-1.0.0.tar.gz ftp.cs.hut.fi:/pub/ssh/ssh-1.0.0.tar.gz Please let me know if you willing to have your site act as a distribution site. (US sites warning: although this software was developed outside the United States using information available in any major bookstore or scientific library worldwide, it is illegal to export anything containing cryptographic software from the United States. Putting this openly available for ftp in the US may make you eligible for charges on ITAR violations, with penalties up to 10 years in prison. French and Russian sites warning: it may be illegal to use or even posses this software in your country, because your government wants to be able to monitor all conversations of its citizens.) There is a WWW home page for ssh: http://www.cs.hut.fi/ssh. There is a mailing list for ssh. Send mail to ssh-request@clinet.fi to get instructions (or mail directly to majordomo@clinet.fi with "subscribe ssh" in body).