Administrator's Guide - Kerio Software Archive

Administrator's Guide - Kerio Software Archive Administrator's Guide - Kerio Software Archive

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Chapter 18 Email archiving and backupFile settingsBackups are saved in compressed files (.zip) where the maximal size of 2 GB is allowed.This box enables you to split the backup to several files of smaller size. The maximal filesize for splitting is set to 2 GB by default. If a file exceeds the value set in the dialog, thefile is not backed up.RotationEach backup of user folders is very space-demanding and it might be desirable to oftenremove these backups. It is possible to set rotation where old backups are removedautomatically. Just specify number of backups to be kept in the Keep at most ... completebackups. Whenever the number is exceeded, the oldest backup is rewritten by the newone.Other settingsBackup directorySpecification of the complete path to the backup directory (according to conventions ofthe operating system on which Kerio MailServer is installed).The default backup store is in the directory where Kerio MailServer is installed:Kerio\MailServer\store\backupFigure 18.7 Backup directory specificationWarning: It is recommended to change the backup directory by setting the path to thecorresponding removable disk or another media where the backup will be stored if available.If Kerio MailServer is running on Windows, the path must be specified as UNC (see figure18.7).If Kerio MailServer is running on Linux or Mac OS, the following options are allowed:• Connect the backup server as a directory and specify the path to this directory in theBackup Directory entry. Here is an example of a result:/mnt/server-backup210

18.2 Backup of user folders• Save the backup in a local directory and then, send it to the server (e.g. by using thersync synchronization utility). Here is an example of a result:/backup/kms/backupEach archive consists of backup type and date when it was created:• Full backup — F20060118T220007Z.zipF — full backup2006 — year01 — month18 — dayT220007Z — GMT timestamp (22:00:07);it always starts with T and ends with Z.• Differencial backup — I20060106T220006Z.zipI — differential backup2006 — year01 — month06 — dayT220006Z — GMT timestamp (22:00:06);it always starts with T and ends with Z.• Backup copy (manual back up startup) — C20060117T084217Z.zip2006 — year01 — month17 — dayT084217Z — GMT timestamp (08:42:17);it always starts with T and ends with Z.Network disk authenticationIn addition to saving backups to removable media it is also possible to store save backupsto a network disk. If access to the disk is secured, authentication by username andpassword must be enabled (a user with access rights to the network location must beused).Username and password for authentication to the network disk can be used only if KerioMailServer is installed on MS Windows.Figure 18.8Network disk authentication211

18.2 Backup of user folders• Save the backup in a local directory and then, send it to the server (e.g. by using thersync synchronization utility). Here is an example of a result:/backup/kms/backupEach archive consists of backup type and date when it was created:• Full backup — F20060118T220007Z.zipF — full backup2006 — year01 — month18 — dayT220007Z — GMT timestamp (22:00:07);it always starts with T and ends with Z.• Differencial backup — I20060106T220006Z.zipI — differential backup2006 — year01 — month06 — dayT220006Z — GMT timestamp (22:00:06);it always starts with T and ends with Z.• Backup copy (manual back up startup) — C20060117T084217Z.zip2006 — year01 — month17 — dayT084217Z — GMT timestamp (08:42:17);it always starts with T and ends with Z.Network disk authenticationIn addition to saving backups to removable media it is also possible to store save backupsto a network disk. If access to the disk is secured, authentication by username andpassword must be enabled (a user with access rights to the network location must beused).Username and password for authentication to the network disk can be used only if <strong>Kerio</strong>MailServer is installed on MS Windows.Figure 18.8Network disk authentication211

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