BackupPC for Debian
-------------------

Note: Important information relevant only for upgrading the backuppc
package can be found in /usr/share/doc/backuppc/NEWS.Debian.gz.

The Web interface is available at http://myserver/backuppc/. Log in a user
backuppc with the random password given during installation.
You can change the password by running "htpasswd for /etc/backuppc/htpasswd".

The default install will backup the local /etc directory using the 'backuppc'
user, so it will not backup root only files like /etc/shadow. If you want
to do a local backup as root, you need to use ssh and ssh authentication keys,
as explained in the manual. The examples/ directory contains some basic host
configuration files.

If you do not like the default data directory (/var/lib/backuppc/), you
should move this directory where you want and make a symbolic link from
the new directory to the default one (all paths are hardcoded so it's the
easiest way to change the data directory).

About Xfer methods
------------------

The default install of backuppc is only useful for backuping PCs via SMB.
For other backup methods you'll probably have to install more packages:
- for rsync: backuppc-rsync, openssh-client
- for tar/ssh: openssh-client

Known bugs with workarounds
---------------------------

- If SMB backups no longer work after an upgrade to lenny, please remove
  the '-N' smbclient options from /etc/backuppc/config.pl

- Do no use the '--exclude' option for rsync backups but only the
  $Conf{BackupFilesExclude} backuppc parameter.

- For IPv6 only hosts, add the following lines to the host configuration file:

    $Conf{NmbLookupCmd} = '';
    $Conf{NmbLookupFindHostCmd} = '';
    $Conf{PingCmd} = '/bin/ping6';

Installing BackupPC with Apache > 2.2
-------------------------------------

The following lines should be added to your Apache configuration or to the top
of /etc/backuppc/apache.conf, to make the authentication work.

LoadModule auth_basic_module /usr/lib/apache2/modules/mod_auth_basic.so
LoadModule authz_groupfile_module /usr/lib/apache2/modules/mod_authz_groupfile.so
LoadModule authn_file_module /usr/lib/apache2/modules/mod_authn_file.so
LoadModule authz_user_module /usr/lib/apache2/modules/mod_authz_user.so
LoadModule cgi_module /usr/lib/apache2/modules/mod_cgi.so

Installing the CGI under suexec+apache2 (contributed by William McKee)
----------------------------------------------------------------------

To enable suexec, you'll probably need to recompile Apache2:

      apt-get source apache2
      apt-get build-dep apache2
      cd apache2_2.0.54
      edit debian/rules and change the --suexec-docroot to /
      dpkg-buildpackage -rfakeroot -b
      dpkg -i ../apache2_2.0.54-4_i386.deb
      dpkg -i ../apache2-common_2.0.54-4_i386.deb
      dpkg -i ../apache2-utils_2.0.54-4_i386.deb
      dpkg -i ../apache2-mpm-prefork_2.0.54-4_i386.deb

Disable sgid on index.cgi:

  chmod u-s /usr/share/backuppc/cgi-bin/index.cgi

Fix permissions on cgi-bin:

  chown backuppc:backuppc /usr/share/backuppc/cgi-bin

Modify /etc/backuppc/apache.conf:

<VirtualHost *>
  ServerName backuppc
  SuexecUserGroup backuppc backuppc
  DocumentRoot /usr/share/backuppc/cgi-bin

  Alias /backuppc /usr/share/backuppc/cgi-bin
  <Directory /usr/share/backuppc/cgi-bin>
    AllowOverride None
    Options ExecCGI MultiViews Indexes
    SymLinksIfOwnerMatch IncludesNoExec
    DirectoryIndex index.cgi
    AddHandler cgi-script .cgi

    AuthType Basic
    AuthUserFile /etc/backuppc/htpasswd
    AuthName "BackupPC admin"
    require valid-user
  </Directory>
</VirtualHost>


Debian Modifications
--------------------

- Modified Perl scripts for having main config files (hosts and config.pl)
  in /etc/backuppc.
- Data directory is /var/lib/backuppc/


/etc/default/backuppc
---------------------

You can change the nice value by adding a line like 'NICE=10' to
/etc/default/backuppc

You can change the ionice value by adding a line like 'IONICE=idle'
to /etc/default/backuppc

 -- Axel Beckert <abe@debian.org>, Mon,  1 Feb 2021 01:59:12 +0100