----- Original Message -----

From: Clint Alexander

To: backuppc-users AT lists.sourceforge DOT net

Sent: Thursday, March 19, 2009 8:32 PM

Subject: Error: auth required, but service web_backup is open/insecure

Hi everyone.

 

As the subject says, I've run into this issue where BackupPC believes the connection is unsecure when it is not. I did some general debugging and info collection...

 

####
#### ON BACKUPPC CLIENT
####

 

# cat /etc/hosts.allow

<empty>

 

# cat /etc/hosts.deny

<empty>

 

# /usr/bin/rsync --version
rsync  version 2.6.8  protocol version 29
Copyright (C) 1996-2006 by Andrew Tridgell, Wayne Davison, and others.

# cat /etc/rsyncd.conf
motd file           = /etc/rsyncd/rsyncd.motd
log file            = /var/log/rsyncd.log
pid file            = /var/run/rsyncd.pid
lock file           = /var/run/rsyncd.lock
port                = 873
syslog facility     = local5
max connections     = 4
use chroot          = no
uid                 = root
gid                 = root

 

[web_backup]
  comment         = Backups & Restores
  path            = /websites
  auth users      = backuppc
  secrets file    = /etc/rsyncd/rsyncd.secrets

 

# cat /etc/rsyncd/rsyncd.secrets
backuppc:password

 

 

####
#### ON BACKUPPC SERVER
####

 

Software versions are:

- Red Hat Enterprise Linux Server release 5.3
- BackupPC: v3.1.0
- File-RsyncP: v0.68

 

$ id
uid=101(backuppc) gid=102(backuppc) groups=102(backuppc)

 

$ cat /etc/hosts
192.168.0.67    myserver

 

$ pwd
/var/lib/BackupPC/temp

 

$ ls -la
total 8
drwxr-xr-x 2 backuppc backuppc 4096 Mar 19 20:24 .
drwxr-x--- 8 backuppc root     4096 Mar 19 20:01 ..

 

$ rsync -qazrt --delete backuppc@myserver::web_backup /var/lib/BackupPC/temp
Password: <entered password>

 

(a few seconds passed and then back to prompt)

$ ls -la

total 16
drwxr-xr-x 4 backuppc backuppc 4096 Mar 19 19:50 .
drwxr-x--- 8 backuppc root     4096 Mar 19 19:45 ..
drwxr-x--- 4 backuppc backuppc 4096 Mar 19 19:48 test_folder_1
drwsrws--- 4 backuppc backuppc 4096 Mar 19 19:48 www.mysite1.com

 

 

(Confirmed rsync was working and authentication was required)

 

$ ./BackupPC_dump -f -v myserver
cmdSystemOrEval: about to system /bin/ping -c 1 -w 3 myserver
cmdSystemOrEval: finished: got output PING myserver (192.168.0.67) 56(84) bytes of data.
64 bytes from myserver (192.168.0.67): icmp_seq=1 ttl=64 time=0.101 ms

 

--- myserver ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.101/0.101/0.101/0.000 ms

 

cmdSystemOrEval: about to system /bin/ping -c 1 -w 3 myserver
cmdSystemOrEval: finished: got output PING myserver (192.168.0.67) 56(84) bytes of data.
64 bytes from myserver (192.168.0.67): icmp_seq=1 ttl=64 time=0.081 ms

 

--- myserver ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.081/0.081/0.081/0.000 ms

 

CheckHostAlive: returning 0.081
full backup started for directory web_backup
started full dump, share=web_backup
Connected to myserver:873, remote version 29
Negotiated protocol version 28
Error connecting to module web_backup at myserver:873: auth required, but service web_backup is open/insecure
Got fatal error during xfer (auth required, but service web_backup is open/insecure)
cmdSystemOrEval: about to system /bin/ping -c 1 -w 3 myserver
cmdSystemOrEval: finished: got output PING myserver (192.168.0.67) 56(84) bytes of data.
64 bytes from myserver (192.168.0.67): icmp_seq=1 ttl=64 time=0.095 ms

 

--- myserver ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.095/0.095/0.095/0.000 ms

 

cmdSystemOrEval: about to system /bin/ping -c 1 -w 3 myserver
cmdSystemOrEval: finished: got output PING myserver (192.168.0.67) 56(84) bytes of data.
64 bytes from myserver (192.168.0.67): icmp_seq=1 ttl=64 time=0.082 ms

 

--- myserver ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.082/0.082/0.082/0.000 ms

 

CheckHostAlive: returning 0.082
Backup aborted (auth required, but service web_backup is open/insecure)
Not saving this as a partial backup since it has fewer files than the prior one (got 0 and 0 files versus 0)
dump failed: auth required, but service web_backup is open/insecure
-bash-3.2$

 

 

Now, I changed this to not require authentication just for testing...

$Conf{RsyncdAuthRequired} = 0

 

... and I got this error (snipped only relevant info...)

 

$ ./BackupPC_dump -f -v myserver

...

full backup started for directory web_backup
started full dump, share=web_backup
Connected to myserver:873, remote version 29
Negotiated protocol version 28
Error connecting to module web_backup at myserver:873: unexpected response: ''
Got fatal error during xfer (unexpected response: '')
cmdSystemOrEval: about to system /bin/ping -c 1 -w 3 myserver
cmdSystemOrEval: finished: got output PING myserver (192.168.0.67) 56(84) bytes of data.
64 bytes from myserver (192.168.0.67): icmp_seq=1 ttl=64 time=0.094 ms
....

 

 

So, I've confirmed everything is working on the outside of BackupPC. I found this thread which touches on what may be the issue: http://www.adsm.org/lists/html/BackupPC-users/2008-06/msg00295.html

 

However, this "patch" did not work for me.

 

 

Does anyone have a clue on what I could be doing wrong?

 

 

Thanks!

 

 

//Clint Alexander