Lecciones Prácticas

[root@olmo BackupPC]# perl --version
 
This is perl, v5.8.8 built for x86_64-linux-thread-multi
 
Copyright 1987-2006, Larry Wall
 
Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.
 
Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl".  If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.

[root@olmo BackupPC-3.1.0]# yum install perl-suidperl
[root@olmo BackupPC-3.1.0]# /usr/sbin/adduser backuppc
[root@olmo www]# mkdir /var/www/cgi-bin/BackupPC
[root@olmo cgi-bin]# mkdir /var/www/icons/BackupPC
[root@olmo backuppc-install]# cd /home/miguel/backuppc-install
[root@olmo backuppc-install]# tar zvxf BackupPC-3.1.0.tar.gz

[root@olmo BackupPC-3.1.0]# perl configure.pl
 
Is this a new installation or upgrade for BackupPC?  If this is
an upgrade please tell me the full path of the existing BackupPC
configuration file (eg: /etc/BackupPC/config.pl).  Otherwise, just
hit return.
 
--> Full path to existing main config.pl []?
 
I found the following locations for these programs:
 
    bzip2        => /usr/bin/bzip2
    cat          => /bin/cat
    df           => /bin/df
    gtar/tar     => /bin/gtar
    gzip         => /bin/gzip
    hostname     => /bin/hostname
    nmblookup    => /usr/bin/nmblookup
    par2         =>
    perl         => /usr/bin/perl
    ping         => /bin/ping
    rsync        => /usr/bin/rsync
    sendmail     => /usr/sbin/sendmail
    smbclient    => /usr/bin/smbclient
    split        => /usr/bin/split
    ssh/ssh2     => /usr/bin/ssh
 
--> Are these paths correct? [y]?
 
Please tell me the hostname of the machine that BackupPC will run on.
 
--> BackupPC will run on host [olmo.unizar.es]?
 
BackupPC should run as a dedicated user with limited privileges.  You
need to create a user.  This user will need read/write permission on
the main data directory and read/execute permission on the install
directory (these directories will be setup shortly).
 
The primary group for this user should also be chosen carefully.
The data directories and files will have group read permission,
so group members can access backup files.
 
--> BackupPC should run as user [backuppc]?
 
Please specify an install directory for BackupPC.  This is where the
BackupPC scripts, library and documentation will be installed.
 
--> Install directory (full path) [/usr/local/BackupPC]?
 
Please specify a data directory for BackupPC.  This is where all the
PC backup data is stored.  This file system needs to be big enough to
accommodate all the PCs you expect to backup (eg: at least several GB
per machine).
 
--> Data directory (full path) [/data/BackupPC]? /img/BackupPC
 
BackupPC can compress pool files, providing around a 40% reduction in pool
size (your mileage may vary). Specify the compression level (0 turns
off compression, and 1 to 9 represent good/fastest to best/slowest).
The recommended values are 0 (off) or 3 (reasonable compression and speed).
Increasing the compression level to 5 will use around 20% more cpu time
and give perhaps 2-3% more compression.
 
--> Compression level [3]?
 
BackupPC has a powerful CGI perl interface that runs under Apache.
A single executable needs to be installed in a cgi-bin directory.
This executable needs to run as set-uid backuppc, or
it can be run under mod_perl with Apache running as user backuppc.
 
Leave this path empty if you don't want to install the CGI interface.
 
--> CGI bin directory (full path) []? /var/www/cgi-bin/BackupPC
 
BackupPC's CGI script needs to display various GIF images that
should be stored where Apache can serve them.  They should be
placed somewhere under Apache's DocumentRoot.  BackupPC also
needs to know the URL to access these images.  Example:
 
    Apache image directory:  /usr/local/apache/htdocs/BackupPC
    URL for image directory: /BackupPC
 
The URL for the image directory should start with a slash.
 
--> Apache image directory (full path) []? /var/www/icons/BackupPC
--> URL for image directory (omit http://host; starts with '/') []? /icons/BackupPC
 
Ok, we're about to:
 
  - install the binaries, lib and docs in /usr/local/BackupPC,
  - create the data directory /img/BackupPC,
  - create/update the config.pl file /etc/BackupPC/config.pl,
  - optionally install the cgi-bin interface.
 
--> Do you want to continue? [y]?
Created /usr/local/BackupPC/bin
Created /usr/local/BackupPC/doc
Created /usr/local/BackupPC/lib/BackupPC/CGI
Created /usr/local/BackupPC/lib/BackupPC/Config
Created /usr/local/BackupPC/lib/BackupPC/Lang
Created /usr/local/BackupPC/lib/BackupPC/Storage
Created /usr/local/BackupPC/lib/BackupPC/Xfer
Created /usr/local/BackupPC/lib/BackupPC/Zip
Created /img/BackupPC
Created /img/BackupPC/pool
Created /img/BackupPC/cpool
Created /img/BackupPC/pc
Created /img/BackupPC/trash
Created /etc/BackupPC
Created /var/log/BackupPC
Installing binaries in /usr/local/BackupPC/bin
Installing library in /usr/local/BackupPC/lib
Installing images in /var/www/icons/BackupPC
Making init.d scripts
Installing docs in /usr/local/BackupPC/doc
Installing config.pl and hosts in /etc/BackupPC
PING localhost.localdomain (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost.localdomain (127.0.0.1): icmp_seq=1 ttl=64 time=0.140 ms
 
--- localhost.localdomain ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.140/0.140/0.140/0.000 ms
Installing cgi script BackupPC_Admin in /var/www/cgi-bin/BackupPC
 
Ok, it looks like we are finished.  There are several more things you
will need to do:
 
  - Browse through the config file, /etc/BackupPC/config.pl,
    and make sure all the settings are correct.  In particular,
    you will need to set $Conf{CgiAdminUsers} so you have
    administration privileges in the CGI interface.
 
  - Edit the list of hosts to backup in /etc/BackupPC/hosts.
 
  - Read the documentation in /usr/local/BackupPC/doc/BackupPC.html.
    Please pay special attention to the security section.
 
  - Verify that the CGI script BackupPC_Admin runs correctly.  You might
    need to change the permissions or group ownership of BackupPC_Admin.
    If this is an upgrade and you are using mod_perl, you will need
    to restart Apache.  Otherwise it will have stale code.
 
  - BackupPC should be ready to start.  Don't forget to run it
    as user backuppc!  The installation also contains an
    init.d/backuppc script that can be copied to /etc/init.d
    so that BackupPC can auto-start on boot.  This will also enable
    administrative users to start the server from the CGI interface.
    See init.d/README.
 
Enjoy!

[root@olmo cgi-bin]# more /etc/httpd/conf/httpd.conf | grep mod_perl
LoadModule perl_module modules/mod_perl.so

Alias /bpc/ "/var/www/cgi-bin/BackupPC/"
        <Directory "/var/www/cgi-bin/BackupPC/">
            Options All
 
            SetHandler perl-script
            PerlResponseHandler ModPerl::Registry
            PerlOptions +ParseHeaders
            Options +ExecCGI
 
            AddHandler perl-script .pl
            AddType application/x-perl-httpd .pl
            PerlHandler ModPerl::Registry
            PerlSendHeader On
        </Directory>

Error: Unable to read config.pl or language strings!!
 
Note: $ENV{REMOTE_USER} is not set, which could mean there is an installation problem. BackupPC_Admin expects Apache to authenticate the user and pass their user name into this script as the REMOTE_USER environment variable. See the documentation.

[root@olmo cgi-bin]# chmod o+rx /etc/BackupPC/
[root@olmo cgi-bin]# chmod o+rx /etc/BackupPC/config.pl

"Error: Wrong user: my userid is 48, instead of 502(backuppc) 
This script needs to run as the user specified in $Conf{BackupPCUser}, which is set to backuppc.
 
This is an installation problem. If you are using mod_perl then it appears that Apache is not running as user backuppc. If you are not using mod_perl, then most like setuid is not working properly on BackupPC_Admin. Check the permissions on /var/www/cgi-bin/BackupPC/BackupPC_Admin and look at the documentation. "

[root@olmo cgi-bin]# 2010-03-23 12:33:32 Can't create a test hardlink between a file in /img/BackupPC/pc and /img/BackupPC/cpool.  Either these are different file systems, or this file system doesn't support hardlinks, or these directories don't exist, or there is a permissions problem, or the file system is out of inodes or full.  Use df, df -i, and ls -ld to check each of these possibilities. Quitting...
 
[1]+  Exit 1                  sudo -u apache /usr/bin/perl /usr/local/BackupPC/bin/BackupPC -d

[root@olmo cgi-bin]# ll /img
total 44
drwxr-x---  6 backuppc backuppc  4096 Mar 23 12:05 BackupPC
 
[root@olmo cgi-bin]# chown -R apache:apache /img/BackupPC/

vi /etc/BackupPC/hosts

RedHat Linux:
============
 
When configure.pl is run, the script linux-backuppc is created. It
should be copied to /etc/init.d/backuppc:
 
    cp /home/miguel/backuppc-install/BackupPC-3.1.0/init.d/linux-backuppc /etc/init.d/backuppc
 
After copying it, you can test it by running these commands as root:
 
    /etc/init.d/backuppc start
    /etc/init.d/backuppc status
    /etc/init.d/backuppc stop
 
You should then run the following commands as root:
 
    chkconfig --add backuppc
    chkconfig --level 345 backuppc on
    chkconfig --list backuppc
 
This will auto-start backuppc at run levels 3, 4 and 5.

/etc/init.d/backuppc start

Backup failed on olmo.unizar.es (File::RsyncP module doesn't exist)

cpan
cpan> install File::RsyncP

/etc/init.d/httpd restart
/etc/init.d/backuppc restart

$Conf{CgiAdminUserGroup} = '';
$Conf{CgiAdminUsers}     = 'user1, user2';

              # autenticar contra el LDAP
               AuthType Basic
               AuthBasicProvider ldap
               AuthName "Autenticacion OpenLDAP "
               AuthzLDAPAuthoritative off
               AuthLDAPURL "ldap://ldapmail.unizar.es/ou=Accounts,dc=unizar,dc=es?uid?sub?(objectClass=person)"
               Require valid-user