Welcome to Eric Hameleers (Alien BOB)'s Wiki pages.
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linux:slug [2010/03/20 21:16] 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 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 nfs localhost:/mnt/thevault/.private/.snapshots /mnt/thevault/.snapshots | ||
| + | </code></note> | ||
| ==== The rsnapshot log file ==== | ==== The rsnapshot log file ==== | ||
