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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| projects:rsyncbackup [2023/02/19 02:33] – [Install] darron | projects:rsyncbackup [2024/11/04 00:27] (current) – [Purge] darron | ||
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| Line 18: | Line 18: | ||
| === Install === | === Install === | ||
| - | Whether you install on a backup server or target host, fetch scripts from repository. | + | Whether you install on a backup server or target host, fetch scripts from repository |
| < | < | ||
| + | apt install mercurial rsync | ||
| hg clone http:// | hg clone http:// | ||
| </ | </ | ||
| Line 64: | Line 65: | ||
| For user only backup on a target, the requirements are ssh access and rsync | For user only backup on a target, the requirements are ssh access and rsync | ||
| being available. If these two cases are met then when configuring the host, | being available. If these two cases are met then when configuring the host, | ||
| - | the login parameters and path to rsync must be set. | + | the login parameters and path to rsync must be set in the target config (see below). |
| __ssh__ | __ssh__ | ||
| Line 72: | Line 73: | ||
| ===Configuration=== | ===Configuration=== | ||
| - | An RSA ssh key with an empty passphrase must be generated and the public key added to target hosts in authorized_keys on each target for user rsync when using the client installed above, or as a login user otherwise. | + | An RSA ssh key with an empty passphrase must be generated and the public key added to each target's authorized_keys |
| ==Variables== | ==Variables== | ||
| Line 79: | Line 80: | ||
| ^ Variable ^ Usage ^ Default ^ | ^ Variable ^ Usage ^ Default ^ | ||
| - | |ETCDIR | + | |ETCDIR |
| |SYNCDIR | |SYNCDIR | ||
| |RSYNC | |RSYNC | ||
| |PURGE | |PURGE | ||
| - | ==Hosts== | + | ==Target hosts== |
| Each target host can have up to three server configuration files in ETCDIR. | Each target host can have up to three server configuration files in ETCDIR. | ||
| Line 112: | Line 113: | ||
| < | < | ||
| #! /bin/bash | #! /bin/bash | ||
| - | SSH=" | + | SSH=" |
| RSYNC_PATH="/ | RSYNC_PATH="/ | ||
| </ | </ | ||
| Line 124: | Line 125: | ||
| |RSYNC_PATH | |RSYNC_PATH | ||
| + | When backing up the localhost, just use the hostname and rsync will copy files directly rather than use ssh. | ||
| === Purge === | === Purge === | ||
| After each backup operation a directory purge is performed to remove old directories. This can remove temporary data within a backup period and this should be appreciated. | After each backup operation a directory purge is performed to remove old directories. This can remove temporary data within a backup period and this should be appreciated. | ||
| + | |||
| + | Purge can be disabled if preferred but exists to manage the number of directories over time. A weekly backup to tape or external disk storage would be sensible for important data. | ||
| + | |||
| + | Purge could also be disabled in the config and then ran at a different time interval from cron Eg. weekly or fortnightly. | ||
| ==Rules== | ==Rules== | ||
| Line 144: | Line 150: | ||
| To disable the purge process, set the PURGE variable to "" | To disable the purge process, set the PURGE variable to "" | ||
| + | |||
| + | === Test=== | ||
| + | |||
| + | Testing can be performed on the server as user rsync by invoking the host command with one argument. | ||
| + | |||
| + | < | ||
| + | sudo -s | ||
| + | /bin/su - rsync | ||
| + | ./bin/host example | ||
| + | </ | ||
| + | |||
| + | example above will extrapolate to example.conf etc | ||
| + | |||
| + | ===CRON=== | ||
| + | |||
| + | Cron on the server is utilised to perform daily backups, a typical entry | ||
| + | is this | ||
| + | |||
| + | < | ||
| + | 0 3 * * * / | ||
| + | </ | ||
| + | |||
| + | === Export === | ||
| + | |||
| + | [[: | ||
| + | |||
