Amanda-Users

Re: server will not backup itself ?!?!

2003-07-02 04:12:23
Subject: Re: server will not backup itself ?!?!
From: Paul Bijnens <paul.bijnens AT xplanation DOT com>
To: "Michael D. Schleif" <mds AT helices DOT org>
Date: Wed, 02 Jul 2003 09:48:49 +0200
Michael D. Schleif wrote:
Also sprach Kurt Yoder (Tue 01 Jul 02003 at 08:46:41PM -0400):

Did you look through the amcheck debug files that you saw in
/tmp/amanda?


Yes, since posting, I found an archived post suggesting this, in which I
find new information.  However, I cannot understand its meaning:

# cat /tmp/amanda/amandad.20030701171859.debug
amandad: debug 1 pid 25109 ruid 34 euid 34 start time Tue Jul  1
17:18:59 2003
/usr/lib/amanda/amandad: version 2.4.2p2
/usr/lib/amanda/amandad: build: VERSION="Amanda-2.4.2p2"
/usr/lib/amanda/amandad:        BUILT_DATE="Tue Apr 2 21:24:21 UTC 2002"
/usr/lib/amanda/amandad:        BUILT_MACH="Linux cyberhq 2.4.18pre2 #1 SMP Tue Jan 
8 18:13:43 PST 2002 i686 unknown"
/usr/lib/amanda/amandad:        CC="gcc" /usr/lib/amanda/amandad: paths: 
bindir="/usr/sbin" sbindir="/usr/sbin"
/usr/lib/amanda/amandad:        libexecdir="/usr/lib/amanda" 
mandir="/usr/share/man"
/usr/lib/amanda/amandad:        AMANDA_TMPDIR="/tmp/amanda" 
AMANDA_DBGDIR="/tmp/amanda"
/usr/lib/amanda/amandad:        CONFIG_DIR="/etc/amanda" DEV_PREFIX="/dev/"
/usr/lib/amanda/amandad:        RDEV_PREFIX="/dev/r" DUMP="/sbin/dump"
/usr/lib/amanda/amandad:        RESTORE="/sbin/restore" 
SAMBA_CLIENT="/usr/bin/smbclient"
/usr/lib/amanda/amandad:        GNUTAR="/bin/tar" COMPRESS_PATH="/bin/gzip"
/usr/lib/amanda/amandad:        UNCOMPRESS_PATH="/bin/gzip" 
MAILER="/usr/bin/Mail"
/usr/lib/amanda/amandad: listed_incr_dir="/var/lib/amanda/gnutar-lists"
/usr/lib/amanda/amandad: defs:  DEFAULT_SERVER="localhost" 
DEFAULT_CONFIG="DailySet1"
/usr/lib/amanda/amandad:        DEFAULT_TAPE_SERVER="localhost"
/usr/lib/amanda/amandad:        DEFAULT_TAPE_DEVICE="/dev/null" HAVE_MMAP 
HAVE_SYSVSHM
/usr/lib/amanda/amandad:        LOCKING=POSIX_FCNTL SETPGRP_VOID DEBUG_CODE
/usr/lib/amanda/amandad:        AMANDA_DEBUG_DAYS=4 BSD_SECURITY USE_AMANDAHOSTS
/usr/lib/amanda/amandad:        CLIENT_LOGIN="backup" FORCE_USERID HAVE_GZIP
/usr/lib/amanda/amandad:        COMPRESS_SUFFIX=".gz" COMPRESS_FAST_OPT="--fast"
/usr/lib/amanda/amandad:        COMPRESS_BEST_OPT="--best" UNCOMPRESS_OPT="-dc"
amandad: dgram_recv: timeout after 30 seconds
amandad: error receiving message: timeout
error receiving message: timeout
amandad: pid 25109 finish time Tue Jul  1 17:19:29 2003



Can you manually connect to the services in question? (eg telnet
localhost 10082, etc)?


Yes, and no . . .

# telnet localhost 10080
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused

# telnet localhost 10082
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.

# telnet localhost 10083
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.


Your /etc/amandahosts has localhost commented out. If you're
connecting to localhost this could be a problem. Also, my
amandahosts is in /var/backup/.amandahosts, and I'm also running
Debian. Unless
/etc/amandahosts is a symlink to /var/backup/.amandahosts, you might
try adding your entries there.


# ls -al /var/backups/.amandahosts
lrwxrwxrwx    1 backup   backup         16 Jun 30 23:56 /var/backups/.amandahosts 
-> /etc/amandahosts

As I added in a previous exchange, much of the archives and Faq-O-Matic
strongly opposes use of localhost -- a point that interests me; but, has
little bearing on my particular solution ;

The real reason is that if you have a tape with a backup of
"localhost".  What host is that?   If the "normal" setup of amanda
you usually have more clients and one server.  Some people even have
many servers (e.g. a standby server).  They all started with a very
little configuration, only one host.
It's in that situation that "localhost" will bite you...
E.g. you want to restore a directory on a client. That client is
called "localhost" too (just installed with redhat, without a
decent network config), and before you know, you're restoring the
contents of your server called 'localhost' too.

(And localhost often does not have a reversed dns-entry.)



--
Paul Bijnens, Xplanation                            Tel  +32 16 397.511
Technologielaan 21 bus 2, B-3001 Leuven, BELGIUM    Fax  +32 16 397.512
http://www.xplanation.com/          email:  Paul.Bijnens AT xplanation DOT com
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