linux-kernel - autofs does not resolve names ?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 16 Jul 2011 03:01:41 +0200
From:	JA Magallón <jamagallon@....com>
To:	autofs@...ux.kernel.org,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: autofs does not resolve names ?

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...

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

-- 
J.A. Magallon <jamagallon()ono!com>     \                 Winter is coming...
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/