[debian-users:02853] Re: ping: unknown host localhost

[Susumu OSAWA <susumu-o@xxxxxxxxxxxxxxx>]

  大沢です。

> nsswitch.conf って何ですか？ 
> そのようなものはありませんでした。

  /usr/doc/libc6/NEWS.gzに次のようにあります。

* Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
  mechanism similar to that found in Solaris 2.  This is now used for the
  group, passwd, hosts, networks, services, protocols, rpc, ethers,
  shadow, netgroup, publickey, and alias databases.  The `nsswitch.conf'
  file controls what services are used for each individual database.  This
  works by loading shared libraries with names specified in `nsswitch.conf',
  so service modules can be changed or added at any time without even
  relinking any program.  Currently there are the file, db, and NIS based
  NSS services available.

  ちなみに私のマシンではこうなってました(デフォルトから変更してません)。

# /etc/nsswitch.conf
#
# Example configuration of GNU Name Service Switch functionality.
#

passwd:         db files
group:          db files
shadow:         db files

hosts:          files dns
networks:       files dns

protocols:      db files
services:       db files
ethers:         db files
rpc:            db files

netgroup:       db files

--
大沢進 <susumu-o@xxxxxxxxxxxxxxx>