BACKUP - Installation de backuppc sur Corni
De PedroWiki
Sommaire
Introduction
Article "bloc-note" sur l'installation de BackupPC sur Corni (home.peaudeau.fr).
Objectif:
- Assurer les backups de rps.pedrono.fr
Installation de BackupPC
Téléchargement des sources
Il n'existe pas de distribution packagée pour Debian/Ubuntu. L'installation se fera donc à partir des sources.
Téléchargement:
jules@corni:/home/jules$ wget http://www.zmanda.com/downloads/community/BackupPC/3.1.1beta/Source/BackupPC-3.1.1beta.tar.gz
Décompression:
jules@corni:/home/jules$ tar xvzf BackupPC-3.1.1beta.tar.gz
Lancement de l'installation
jules@corni:/home/jules/BackupPC-3.1.1beta$ sudo perl ./configure.pl [sudo] password for jules: 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 => /bin/bzip2 cat => /bin/cat df => /bin/df gtar/tar => /bin/tar 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]? y Please tell me the hostname of the machine that BackupPC will run on. --> BackupPC will run on host [corni]? home.peaudeau.fr 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]? getpwnam() says that user backuppc doesn't exist. Please check the name and verify that this user is in the passwd file.
Dans un autre terminal:
jules@corni:~$ sudo useradd backuppc [sudo] password for jules: jules@corni:~$ sudo passwd backuppc Enter new UNIX password: Retype new UNIX password: passwd: password updated successfully jules@corni:~$
ATTENTION RESTE A CHOISIR LE BON GROUPE POUR LE USER BACKUPPC
Suite de l'installer:
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]? BackupPC can use FTP as a transfer protocol. for this, BackupPC needs the module Net::FTP::RetrHandle, and highly recommends using Net::FTP::AutoReconnect. However, these packages have not made their way onto the Fedora or Red Hat package servers from CPAN yet. Net::FTP::AutoReconnect and Net::FTP::RetrHandle have been bundled with this distribution for use only with BackupPC. --> Install CPAN Net::FTP::* modules? [y]? BackupPC can compress pool files, but it needs the Compress::Zlib package installed (see www.cpan.org). Compression will provide around a 40% reduction in pool size, at the expense of cpu time. You can leave compression off and run BackupPC without compression, in which case you should leave the compression level at 0 (which means off). You could install Compress::Zlib and turn compression on later, but read the documentation first about how to do this. Or the better choice is to quit, install Compress::Zlib, and re-run configure.pl. --> Compression level [0]?
Dans un autre terminal, configuration de cpan et installation de Compress::Zlib:
jules@corni:~$ cpan ... => Suivi des instruction
La configuration de cpan requiert l'installation d'utilitaires:
jules@corni:~$ sudo apt-get install unzip jules@corni:~$ sudo apt-get install lynx jules@corni:~$ sudo apt-get install ncftp
Reprise de l'installer:
--> Compression level [0]? 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) []? /home/jules/www/cgi/ 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) []? /home/jules/www/backuppc --> URL for image directory (omit http://host; starts with '/') []? /backuppc Ok, we're about to: - install the binaries, lib and docs in /usr/local/BackupPC, - create the data directory /data/BackupPC, - create/update the config.pl file /etc/BackupPC/config.pl, - optionally install the cgi-bin interface. --> Do you want to continue? [y]? 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 /usr/local/BackupPC/lib/Net/FTP Created /home/jules/www/backuppc Created /data/BackupPC Created /data/BackupPC/pool Created /data/BackupPC/cpool Created /data/BackupPC/pc Created /data/BackupPC/trash Created /etc/BackupPC Created /var/log/BackupPC Installing binaries in /usr/local/BackupPC/bin Installing library in /usr/local/BackupPC/lib /usr/local/BackupPC/lib/Net/FTP/AutoReconnect.pm installed /usr/local/BackupPC/lib/Net/FTP/RetrHandle.pm installed Installing images in /home/jules/www/backuppc Making init.d scripts Making Apache configuration file for suid-perl Installing docs in /usr/local/BackupPC/doc Installing config.pl and hosts in /etc/BackupPC PING localhost (127.0.0.1) 56(84) bytes of data. 64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.070 ms --- localhost ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.070/0.070/0.070/0.000 ms Installing cgi script BackupPC_Admin in /home/jules/www/cgi/ 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 $Conf{CgiAdminUsers} so you have administration privileges in the CGI interface. - Edit the list of hosts to backup in /etc/BackupPC/hosts. - Read the documentation in /usr/local/BackupPC/doc/BackupPC.html. Please pay special attention to the security section. - Verify that the CGI script BackupPC_Admin runs correctly. You might need to change the permissions or group ownership of BackupPC_Admin. If this is an upgrade and you are using mod_perl, you will need to restart Apache. Otherwise it will have stale code. - BackupPC should be ready to start. Don't forget to run it as user backuppc! The installation also contains an init.d/backuppc script that can be copied to /etc/init.d so that BackupPC can auto-start on boot. This will also enable administrative users to start the server from the CGI interface. See init.d/README. Enjoy! jules@corni:/home/jules/BackupPC-3.1.1beta$
Configuration post installation
- Création d'un script alias dans /etc/apache2/sites-available/default + restart apache.
- Copie de /home/jules/BackupPC-3.1.1beta/init.d/debian-backuppc vers /etc/init.d/backuppc.
- Tentatives de démarrage de BackupPC:
/etc/init.d/backuppc start HS, pb de droits.
- Modification des droits sur les dossiers:
chown -R backuppc: /data/ => démarrage OK.
- Tentative d'accès à http://home.peaudeau.fr/backuppc/BackupPC_Admin HS.
- Modification des groupes d'utilisateur et des droits sur les dossiers:
sudo usermod -a -G backuppc www-data chmod g+x /home/jules/www/cgi/ chmod g+w /home/jules/www/cgi/
- Tentative d'accès à http://home.peaudeau.fr/backuppc/BackupPC_Admin HS.
- Modification directive AllowOverride à All au lieu de None + restart apache.
- Tentative d'accès à http://home.peaudeau.fr/backuppc/BackupPC_Admin:
- Accès OK MAIS
- Message d'erreur:
Erreur: Mauvais utilisateur: mon userid est 33, à la place de 1005 (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 /home/jules/www/cgi//BackupPC_Admin and look at the documentation.