Path: utzoo!utgpu!watmath!clyde!att!rutgers!mailrus!husc6!rice!sun-spots-request From: etnibsd!vsh@uunet.uu.net (Steve Harris) Newsgroups: comp.sys.sun Subject: wanted: return caller program Message-ID: <955@etnibsd.UUCP> Date: 1 Dec 88 13:40:57 GMT Sender: usenet@rice.edu Organization: Rice University, Houston, Texas Lines: 32 Approved: Sun-Spots@rice.edu Original-Date: 17 Nov 88 17:32:30 GMT X-Sun-Spots-Digest: Volume 7, Issue 31, message 14 of 19 What with all the publicity about the virus, management is suddenly becoming very security consicous. Simultaneously, I am in the process of purchasing additional modems and phone lines. They want to be sure our network will not be raped by some cracker dialing in on our new lines. The following solution has been proposed: When an outsider connects to a dial-in port, instead of getty/login, a special program receives the call, prompts for a username and return phone number (and perhaps baud rate), and disconnects. The program verifies the username and phone number against some file, and then calls the user back. When the connection is made, the user logs in as usual (presumably the program forks or execs getty or login). I can see that there might be some tricky stuff in writing such a program. Basically, much of the stuff getty does would have to be duplicated. Since I no longer have access to sources, I'd much rather use somebody else's program than write one from scratch. So... Does anybody out there have such a program? Or know of its existence in any of the source archives? BTW -- we are running Ultrix-32 (Rev. 2.2) on a uVax, and SunOS 3.[45] on numerous Sun 3's. I would think such a program would work on either system. Send email, I will summarize. Thanks in advance for any help. -- Steve Harris -- Eaton Corp. -- Beverly, MA -- uunet!etnibsd!vsh