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From: wpaul@ctr.columbia.edu (Bill Paul)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: YP question with 2.1.5
Date: 19 Mar 1997 17:55:56 GMT
Organization: Columbia University Center for Telecommunications Research
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Daring to challenge the will of the almighty Leviam00se, A. Karl Heller
(heller@socko.cdnow.com) had the courage to say:
: I've got a 2.1.5 box that is running ypserv just fine. I have a Solaris
: 2.5.1 box that uses it as a yp server. If I do a "ypcat passwd" on Solaris
: or FreeBSD I get the correct output. If I do a "ypcat hosts" on FreeBSD
: I get the correct output. If I do a "ypcat hosts" on Solaris, the list is
: duplicated several times. I'm worried that something is broken and I'm
: not sure on what. I figure there is something wrong with the Solaris YP
: client or the FreeBSD server that messes up the list ( but why only hosts?? ).
This is actually 'normal.' If you do a ypcat -k hosts, it might make
more sense: this will show you the keys associated with the data that
you're dumping from the map.
What's happening is that you have an /etc/hosts entry like this:
10.0.0.1 foohost.foodomain.foo foohost alias-for-foohost
For the hosts.byname map. foohost.foodomain.foo, foohost and
alias-for-foohost must _all_ match this entry in order for things
to work right. Consequently, /var/yp/Makefile generates a hosts.byname
map that looks like this:
Key Data
--------------------- ----------------------------------------
foohost.foodomain.foo 10.0.0.1 foohost.foodomain.foo foohost alias-for-foohost
foohost 10.0.0.1 foohost.foodomain.foo foohost alias-for-foohost
alias-for-foohost 10.0.0.1 foohost.foodomain.foo foohost alias-for-foohost
Why doesn't show show up anywhere but Solaris? Well, on most systems,
'ypcat hosts' dumps the hosts.byaddr map. On Solaris, it dumps hosts.byname
instead.
: Also, does anybody have a YP makefile addition for adding the /etc/aliases
: file?
Support for this was added in 2.2.
-Bill
--
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-Bill Paul (212) 854-6020 | System Manager, Master of Unix-Fu
Work: wpaul@ctr.columbia.edu | Center for Telecommunications Research
Home: wpaul@skynet.ctr.columbia.edu | Columbia University, New York City
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