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To load any other config file:
# /etc/scripts/backup-‐usb load {filename}
The
/etc/scripts/backup-‐usb
script can be executed directly with various
COMMANDS
or called from other custom scripts
you may create. We recommend that you do not customize the
/etc/scripts/backup-‐usb
script itself at all.
15.1.9 Backing-‐up the configuration off-‐box
If you do not have a USB port on your
console server,
you can back up the configuration to an off-‐box file.
Before backing up you need to arrange a way to transfer the backup off-‐box. This could be via an NFS share, a
Samba (Windows) share to USB storage, or copied off-‐box via the network. If backing up directly to off-‐box
storage, make sure it is mounted.
/tmp
is not a good location for the backup except as a temporary location before transferring it off-‐box. The
/tmp
directory will not survive a reboot. The
/etc/config
directory is not a good place either, because it will not
survive a restore.
Backup and restore should be done by the root user to make sure correct file permissions are set. The config
command is used to create a backup tarball:
config -‐e <Output File>
The tarball will be saved to the indicated location. It will contain the contents of the
/etc/config/
directory in
an uncompressed and unencrypted form.
Example nfs storage:
# mount -‐t nfs 192.168.0.2:/backups /mnt # config -‐e /mnt/les4108.config # umount/mnt/
Example transfer off-‐box via scp:
# config -‐e /tmp/les4108.config
# scp /tmp/les4108.config 192.168.0.2:/backups
The config command is also used to restore a backup:
config -‐i <Input File>
This will extract the contents of the previously created backup to
/tmp
, and then synchronize the
/etc/config
directory with the copy in
/tmp
.
One problem that can crop up here is that there is not enough room in
/tmp
to extract files to. The following
command will temporarily increase the size of
/tmp
:
mount -‐t tmpfs -‐o remount,size=2048k tmpfs /var
If restoring to either a new unit or one that has been factory defaulted, make sure that the process generating
SSH keys either stops or completes before restoring configuration. If this is not done, then a mix of old and
new keys may be put in place.
SSH uses these keys to avoid man-‐in-‐the-‐middle attacks. Logging in may be disrupted.
15.2 Advanced Portmanager
