Anders Johansson wrote:

On Sunday 26 February 2012 21:37:22 Dirk Gently wrote:

...

Anybody know what's going on here? It's creating a huge amount of diagnostic output into /var/log/{messages,warn}

root@linux-c4zg:/> tail -10 /var/log/warn Feb 26 21:24:02 linux-c4zg postfix/sendmail[13762]: fatal: config variable inet_interfaces: host not found: localhost

Did you perhaps remove "files" from the line

hosts: files dns

in /etc/nsswitch,conf?

Anders

Thanks for your prompts reply, Anders. It looks like that is proper. hosts: files mdns4_minimal [NOTFOUND=return] dns note that despite the [NOTFOUN[NOTFOUND=return] before dns, that dns look-ups work properly. linux-c4zg:~ # grep hosts /etc/nsswitch.conf hosts: files mdns4_minimal [NOTFOUND=return] dns linux-c4zg:~ # linux-c4zg:~ # more /etc/nsswitch.conf # # /etc/nsswitch.conf # # An example Name Service Switch config file. This file should be # sorted with the most-used services at the beginning. # # The entry '[NOTFOUND=return]' means that the search for an # entry should stop if the search in the previous entry turned # up nothing. Note that if the search failed due to some other reason # (like no NIS server responding) then the search continues with the # next entry. # # Legal entries are: # # compat Use compatibility setup # nisplus Use NIS+ (NIS version 3) # nis Use NIS (NIS version 2), also called YP # dns Use DNS (Domain Name Service) # files Use the local files # [NOTFOUND=return] Stop searching if not found so far # # For more information, please read the nsswitch.conf.5 manual page. # # passwd: files nis # shadow: files nis # group: files nis passwd: compat files xos group: compat files xos hosts: files mdns4_minimal [NOTFOUND=return] dns networks: files dns services: files protocols: files rpc: files ethers: files netmasks: files netgroup: files nis publickey: files bootparams: files automount: files nis aliases: files linux-c4zg:~ # -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org

Anders Johansson wrote:

On Sunday 26 February 2012 22:44:54 Dirk Gently wrote:

...

It looks like that is proper.

hosts: files mdns4_minimal [NOTFOUND=return] dns

Hm weird.

Is nscd running? If it is, try shutting it down

not running. Why in the world would networking NOT check /etc/hosts? I've never seen this sort of behavior before installing 12.1

Anders

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Philipp Thomas wrote:

On Thu, 01 Mar 2012 00:09:28 -0500, Dirk Gently wrote:

...

Why in the world would networking NOT check /etc/hosts?

Because of NSS. /etc/nsswitch.conf decides which resources are used to resolve names and in which order. If the system is configured to not consult /etc/hosts it won't. I will by default use it.

See "info '(libc.info.gz)NSS Basics' " for a description of NSS.

Philipp

This was already checked in an earlier post. root@linux-c4zg:/etc> more nsswitch.conf # # /etc/nsswitch.conf # # An example Name Service Switch config file. This file should be # sorted with the most-used services at the beginning. # # The entry '[NOTFOUND=return]' means that the search for an # entry should stop if the search in the previous entry turned # up nothing. Note that if the search failed due to some other reason # (like no NIS server responding) then the search continues with the # next entry. # # Legal entries are: # # compat Use compatibility setup # nisplus Use NIS+ (NIS version 3) # nis Use NIS (NIS version 2), also called YP # dns Use DNS (Domain Name Service) # files Use the local files # [NOTFOUND=return] Stop searching if not found so far # # For more information, please read the nsswitch.conf.5 manual page. # # passwd: files nis # shadow: files nis # group: files nis passwd: compat files xos group: compat files xos # hosts: files mdns4_minimal [NOTFOUND=return] dns hosts: files dns networks: files dns services: files protocols: files rpc: files ethers: files netmasks: files netgroup: files nis publickey: files bootparams: files automount: files nis aliases: files -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org

Philipp Thomas wrote:

On Fri, 02 Mar 2012 13:35:01 -0500, Dirk Gently wrote:

...

This was already checked in an earlier post.

I know, but you asked why something wouldn't look at /etc/hosts and I supplied the explanation for that.

Is there ANY other possible explanation? ping localhost still returns unknown host :-( Anything DNS related is working perfectly, but things in /etc/hosts don't.

Philipp

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Philipp Thomas wrote:

On Tue, 13 Mar 2012 04:27:20 -0400, Dirk Gently wrote:

...

Is there ANY other possible explanation? ping localhost still returns unknown host :-(

A 'strace -f -e trace=file ping localhost' should at least show you that /etc/hosts is really ignored. If you haven't already tried, stop nscd and try then.

Philipp

root@linux-c4zg:~> ps -ef | grep nscd root 18787 18076 0 05:10 pts/15 00:00:00 grep --color=auto nscd root@linux-c4zg:~> strace -f -e trace=file ping localhost execve("/bin/ping", ["ping", "localhost"], [/* 123 vars */]) = 0 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 open("/lib/libcap.so.2", O_RDONLY) = 3 open("/lib/libc.so.6", O_RDONLY) = 3 open("/etc/resolv.conf", O_RDONLY) = 4 stat64("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=908, ...}) = 0 open("/etc/resolv.conf", O_RDONLY) = 4 open("/etc/nsswitch.conf", O_RDONLY) = 4 open("/etc/ld.so.cache", O_RDONLY) = 4 open("/lib/libnss_files.so.2", O_RDONLY) = 4 open("/etc/host.conf", O_RDONLY) = 4 open("/etc/hosts", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied) open("/etc/ld.so.cache", O_RDONLY) = 4 open("/lib/libnss_dns.so.2", O_RDONLY) = 4 open("/lib/libresolv.so.2", O_RDONLY) = 4 stat64("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=908, ...}) = 0 ping: unknown host localhost root@linux-c4zg:~> cd /etc root@linux-c4zg:/etc> grep localhost /etc/hosts 127.0.0.1 localhost ::1 localhost ipv6-localhost ipv6-loopback root@linux-c4zg:/etc> more nsswitch.conf # # /etc/nsswitch.conf # # An example Name Service Switch config file. This file should be # sorted with the most-used services at the beginning. # # The entry '[NOTFOUND=return]' means that the search for an # entry should stop if the search in the previous entry turned # up nothing. Note that if the search failed due to some other reason # (like no NIS server responding) then the search continues with the # next entry. # # Legal entries are: # # compat Use compatibility setup # nisplus Use NIS+ (NIS version 3) # nis Use NIS (NIS version 2), also called YP # dns Use DNS (Domain Name Service) # files Use the local files # [NOTFOUND=return] Stop searching if not found so far # # For more information, please read the nsswitch.conf.5 manual page. # # passwd: files nis # shadow: files nis # group: files nis passwd: compat files xos group: compat files xos # hosts: files mdns4_minimal [NOTFOUND=return] dns hosts: files dns networks: files dns services: files protocols: files rpc: files ethers: files netmasks: files netgroup: files nis publickey: files bootparams: files automount: files nis aliases: files root@linux-c4zg:/etc> -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wednesday, 2012-03-14 at 11:01 +0100, Hans-Joachim Ehlers wrote:

Could you check why you get on /etc/hosts a permission denied ?

...

open("/etc/hosts", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)

Apparmour would be my guess... - -- Cheers, Carlos E. R. (from 11.4 x86_64 "Celadon" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (GNU/Linux) iEYEARECAAYFAk9gpQMACgkQtTMYHG2NR9W7BACdEuREtkCE2XX+PmS9GnlLM9Hn dqQAni4aCuwad8QSHd5NdsK+q92/uJtW =Enoj -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org