Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!ccut!wnoc-tyo-news!astemgw!ohm From: ohm@astem.or.jp (MORISHIMA Akitoshi) Newsgroups: comp.mail.uucp Subject: Re: Going from Internet to UUCP Message-ID: Date: 25 Nov 90 03:29:10 GMT References: <2dqjg2.8$2@smurf.sub.org> Sender: news@astem.or.jp Organization: ASTEM Research Institute, Kyoto, Japan. Lines: 79 In-reply-to: urlichs@smurf.sub.org's message of 24 Nov 90 22:28:16 GMT >>>>> On 24 Nov 90 22:28:16 GMT, urlichs@smurf.sub.org (Matthias >>>>> Urlichs) said: urlichs> Since there are no MXes for .UUCP Yes. But at least for sites that has only UUCP links but has domain name (other than *.UUCP), I thought it's possible (although not realistic to do that for all such sites, maybe...). Most sites in JUNET are this case. They have only uucp links, but almost all of them have domain names that are compatible with internet domain name. So some gateways on internet advertise MX for them, although routing at uucp sites still depend on hard-coded rules in sendmail.cf. (There is a tool 'mailconf' for generating sendmail.cf from a simple configuration file. Most of JUNET sites are using it. It differs from tools such as Ease in that it requires little knowledge of sendmail/sendmail.cf, so it's easy to configure. Mails that couldn't be resolved at a site are forwarded to 'upper level' neighbor host) urlichs> - randomly select one of the Internet->UUCP gateways which urlichs> are advertised in the maps as UUCP->Internet gateways (in urlichs> file d.Top), on the reasonable(?) assumption that they're urlichs> transferring mail both ways. My first thought was that we shouldn't increase the load of some limited number of gateways. The gateways listed in d.Top seems to be too few to handle worldwide mail traffic. So I didn't want to forward all such mails to one gateway (e.g. uunet). Am I too pessimistic? urlichs> - analyze the maps to find, for host XXX, the closest entry urlichs> with a domain alias, lookup a MX for it, and send the mail urlichs> via the resulting machine. Problem: There doesn't seem to be urlichs> a tool out there which does this. Yes, so I informed my colleagues to 'grep' comp.mail.maps articles, and find the host that looks like to have internet links, then use 'user%host.uucp@the_gateway'... This is tidy work for normal user. urlichs> - Generate a path from you to XXX, chop it off at the last urlichs> domain name in the path, route via MX as above. I wonder if the last domain in the path is always the closest gateway... Also, I'm afraid that we have no uucp links to carry mails. I want to know how to write our local information to pathalias in this case. Can I write 'dummy (not true)' link to several gateways (as in d.Top, for example)? Is the path generated by such information optimal? Anyway, urlichs> There exists a Perl script (I have written it; send mail if urlichs> you want it) that takes the maps apart in such a way that urlichs> this actually works. if you have time, could you mail it? urlichs> - enter the path to XXX.uucp in your mail address, (I don't want to use source routes as much as possible... We all hope to cease using ! or % eventually in the future, don't we?) urlichs> - post your mail to the newsgroup where the user from XXX urlichs> originally posted (this is a very bad idea, but lots of urlichs> people do it...), I can never do such thing that only wastes many machine's resources. Also, if we find the address off-line, (such as in papers or magazines or books), we can't use this way. -- Akitoshi