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Open_Source_Alternative_to_Commercial_Software
http://downloadpedia.org/Open_Source_Alternative_to_Commercial_Software
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open source alternatives to Microsoft Exchange
OpenChange:
OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and Exchange protocols.
based on samba4
Citadel:
turnkey open-source solution for email and collaboration
http://www.citadel.org/doku.php
Spicebird:
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简易搭建一个私有云平台
http://cloud.51cto.com/art/201003/187430.htm
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GRUB boot entry
Change Grub behavior::
Modify grub config file: /etc/default/grub
Update /boot/grub/grub.cfg by command “sudo update-grub”
Boot from saved entry
Modify grub config file as following:
GRUB_DEFAULT=saved
List grub boot entry::
cat /boot/grub/grub.cfg
Change the default boot entry
grub-set-default entry_num
Set One time boot
grub-reboot entry_num
