2014年6月30日 星期一

[NAS] Some Reminders on Adding an NAS to Network


  • RAID 5 - needs at least 3 HDs
  • Either one among 3 is down, data can be recovered; for two, nothing can be done.
  • Using Reserved IP from DHCP is better, since when network is down, plugging NAS to another network with simple setting (DHCP giving random IP) and NAS can be used immediately
  • Setting Reserved IP requires the device's MAC address. Need to check the given IP and its MAC address from router
  • In windows, NAS drive can be searched by typing \\TheNASName\TheFolderCreated.
  • Only Disk Quota can be set. Cannot set a quota for a created folder. Thus the users can share the resources among a disk, but not a folder. If allocation for different users is needed, created different disks.

2014年6月11日 星期三

How to schedule the execution of a PHP script on the server side?

On Linux/Unix (including Mac OSX), create a cron job.

# minute (0 - 59) 
# hour (0 - 23)
# day of month (1 - 31)
# month (1 - 12) OR jan,feb,mar,apr ... 
# day of week (0 - 6) (Sunday=0 or 7)  OR sun,mon,tue,wed,thu,fri,sat 
# *  *  *  *  *  command to be executed
30 3  *  *  *  php /home/scripts/do_something.php
30 3  *  *  *  wget your.domain.com/do_something.php

 http://stackoverflow.com/questions/1194857/how-to-schedule-the-execution-of-a-php-script-on-the-server-side

日常秘技小輯錄

媽媽傳授: 用爉燭塗在線上縫紉,可以更容易打結,以及拉縫線更順 爸爸傳授: 貼玻璃紙前在玻璃面塗上肥皂水,可以移動玻璃紙不留摺痕