linux-kernel - Re: [autofs] autofs does not resolve names ?

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Date:	Sat, 16 Jul 2011 10:30:58 +0800
From:	Ian Kent <raven@...maw.net>
To:	JA Magallón <jamagallon@....com>
Cc:	autofs@...ux.kernel.org,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [autofs] autofs does not resolve names ?

On Sat, 2011-07-16 at 03:01 +0200, JA Magallón wrote:
> Hi all...
> 
> Since the update to autofs-5.0.6, I have a curious problem. Probably it is not autofs
> to blame, but I ask here to see if someone can give me some light...

Have you applied autofs-5.0.6-fix-ipv6-name-for-lookup-fix.patch?
Which fixes a stupid mistake on my part.

> 
> Setup:
> /etc/autofs/auto.master:
> 
> /home   ldap://danae-nfs.cps.unizar.es/automountMapName=auto_home,o=diis --timeout=60,tcp,nobrowse
> 
> (user homes map from LDAP, shared homes at a server)
> 
> The name is resolved:
> 
> annwn:/etc/autofs# host danae-nfs
> danae-nfs.cps.unizar.es has address 155.210.152.202
> annwn:/etc/autofs# ping danae-nfs
> PING danae-nfs.cps.unizar.es (155.210.152.202) 56(84) bytes of data.
> 64 bytes from danae-nfs.cps.unizar.es (155.210.152.202): icmp_req=1 ttl=255 time=0.339 ms
> ...
> 
> But when I access home (ssh the box):
> 
> Jul 15 01:39:31 annwn automount[7774]: Starting automounter version 5.0.6, master map auto.master
> Jul 15 01:39:31 annwn automount[7774]: using kernel protocol version 5.02
> Jul 15 01:39:31 annwn automount[7774]: lookup_nss_read_master: reading master files auto.master
> ...
> Jul 15 01:39:31 annwn automount[7774]: mount_mount: mount(nfs): root=/home name=magallon what=danae-nfs:/export/home/usuarios/giga/magallon, fstype=nfs, options=tcp,quota
> Jul 15 01:39:31 annwn automount[7774]: mount_mount: mount(nfs): nfs options="tcp,quota", nobind=0, nosymlink=0, ro=0
> Jul 15 01:39:31 annwn automount[7774]: get_nfs_info: called with host danae-nfs(69.65.19.116) proto udp version 0x30
> Jul 15 01:39:37 annwn automount[7774]: get_nfs_info: called with host danae-nfs(69.65.19.116) proto tcp version 0x30
> 
> Where the hell does it get that IP address for my server ????
> 
> Diggin a bit more:
> 
> annwn:/var/log# host 69.65.19.116
> 116.19.65.69.in-addr.arpa domain name pointer nx-deleted-host-1.no-ip.com
> 
> because I have at /etc/resolv.conf:
> 
> search cps.unizar.es unizar.es no-ip.org
> 
> Why did it not resolved first with the first domain ?
> 
> If I delete the no-ip.org domain, I get:
> 
> Jul 15 01:47:18 annwn automount[8068]: mount_mount: mount(nfs): root=/home name=magallon what=danae-nfs:/export/home/usuarios/giga/magallon, fstype=nfs, options=tcp,quota
> Jul 15 01:47:18 annwn automount[8068]: mount_mount: mount(nfs): nfs options="tcp,quota", nobind=0, nosymlink=0, ro=0
> Jul 15 01:47:20 annwn automount[8068]: add_host_addrs: hostname lookup failed: Name or service not known
> Jul 15 01:47:20 annwn automount[8068]: mount(nfs): no hosts available
> Jul 15 01:47:20 annwn automount[8068]: dev_ioctl_send_fail: token = 28
> Jul 15 01:47:20 annwn automount[8068]: failed to mount /home/magallon
> 
> automount does not add the search domains and resolve ? what am I doing wrong ?
> is it a bug ? uuhhh ?
> 
> TIA
> 


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