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linux:slug [2010/03/20 22:35]
alien
linux:slug [2010/04/24 19:20] (current)
alien More slashes at the end of directories removed.
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 </code> </code>
  
-This will automatically install the dependencies as well:+Please follow carefully the post-installation instructions shown on-screen after installing some of these packages (such as syslog-ng, nfs-utils) or they will not work properly. Sendmail will for instance state: <code bash> 
 +sendmail will run as a daemon now. Alternatively, execute: 
 +echo 'smtp    stream  tcp     nowait  root    /opt/sbin/sendmail -bs' >> /etc/inetd.conf 
 +echo '0-59/15 * * * * root /opt/sbin/sendmail -q  & > /dev/null 2>&1' >> /etc/crontab 
 +</code> 
 + 
 +Installing these base packages will automatically install their dependencies as well:
   * for openssh : openssl, zlib   * for openssh : openssl, zlib
   * for rsnapshot : coreutils, perl, rsync, openssh   * for rsnapshot : coreutils, perl, rsync, openssh
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 # mkdir /mnt/thevault/.snapshots # mkdir /mnt/thevault/.snapshots
 </code> Set the proper permissions on all directories: <code> </code> Set the proper permissions on all directories: <code>
-# chmod 0700 /mnt/thevault/.private/ +# chmod 0700 /mnt/thevault/.private 
-# chmod 0755 /mnt/thevault/.private/.snapshots/ +# chmod 0755 /mnt/thevault/.private/.snapshots 
-# chmod 0755 /mnt/thevault/.snapshots/ +# chmod 0755 /mnt/thevault/.snapshots 
-</code> In ''/etc/exports'', add the directory ''.private/.snapshots/'' as a read only NFS export: <code> +</code> In ''/opt/etc/exports'', add the directory ''.private/.snapshots'' as a read only NFS export: <code> 
-  /mnt/thevault/.private/.snapshots 127.0.0.1(ro,no_root_squash) +  /mnt/thevault/.private/.snapshots  127.0.0.1(ro,no_root_squash) 
-</code> In ''/etc/fstab'', mount ''.private/.snapshots/'' read-only under ''.snapshots/'' <code> +</code> In ''/etc/fstab'', mount ''.private/.snapshots'' read-only under ''.snapshots'' <code> 
-  localhost:/mnt/thevault/.private/.snapshots /mnt/thevault/.snapshots nfs  ro   0 0+  localhost:/mnt/thevault/.private/.snapshots  /mnt/thevault/.snapshots  nfs  ro   0 0
 </code> Now restart the NFS daemon: <code> </code> Now restart the NFS daemon: <code>
 /opt/etc/init.d/S56nfs-utils condrestart /opt/etc/init.d/S56nfs-utils condrestart
 </code> Now mount the read-only snapshot root (happens automatically at boot): <code> </code> Now mount the read-only snapshot root (happens automatically at boot): <code>
-# mount /mnt/thevault/.snapshots/</code>+# mount /mnt/thevault/.snapshots</code>
  
   * In ''/opt/etc/mail/aliases'' add an email alias for user root so that you will receive emails generated from root's cronjobs.   * In ''/opt/etc/mail/aliases'' add an email alias for user root so that you will receive emails generated from root's cronjobs.
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 </code> As you may notice, these crontab entries schedule the jobs with larger intervals to run a bit before the jobs that trigger more regularly.(//daily// runs 30 minutes before //hourly//; and //weekly// in turn runs 30 minutes before //daily//). This is to prevent for instance the //weekly// rsnapshot job to run before the //daily// job (the same goes for combinations of other intervals). If you would schedule them the other way round, a problem may arise in case the larger interval job would start (re)moving backup directories before the shorter interval job has finished it's work.  </code> As you may notice, these crontab entries schedule the jobs with larger intervals to run a bit before the jobs that trigger more regularly.(//daily// runs 30 minutes before //hourly//; and //weekly// in turn runs 30 minutes before //daily//). This is to prevent for instance the //weekly// rsnapshot job to run before the //daily// job (the same goes for combinations of other intervals). If you would schedule them the other way round, a problem may arise in case the larger interval job would start (re)moving backup directories before the shorter interval job has finished it's work. 
  
-<note>It seems that my changes to ''/etc/fstab'' are being overwritten at boot. However, there is an alternative to mounting through fstab: If the file ''/unslung/rc.local'' exists, it will be executed. So, I created that file (it did not exist) and added <code>+<note>It seems that my changes to ''/etc/fstab'' are being overwritten at boot. However, there is an alternative to mounting through fstab: If the file ''/unslung/rc.local'' exists, it will be executed. So, I copied ''/etc/rc.d/rc.local'' to that file (it did not exist): <code> 
 +cp -a /etc/rc.d/rc.local /unslung/rc.local</code> removed the line <code> 
 +if ( [ -r /unslung/rc.local ] && . /unslung/rc.local ) ; then return 0 ; fi 
 +</code> and then added these lines at the bottom: <code>
 mount -t ext3 -o defaults,usrquota /dev/sdb1 /mnt/thevault mount -t ext3 -o defaults,usrquota /dev/sdb1 /mnt/thevault
 mount -t nfs localhost:/mnt/thevault/.private/.snapshots /mnt/thevault/.snapshots mount -t nfs localhost:/mnt/thevault/.private/.snapshots /mnt/thevault/.snapshots
-return 1 +</code></note>
-</code> The "return 1" will ensure that the rest of the commands in ''/etc/rc.d/rclocal'' will be executed after ''/unslung/rc.local'' finishes.</note>+
  
 ==== The rsnapshot log file ==== ==== The rsnapshot log file ====

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