Linux and Unix cheatsheet
TIME_WAIT in netstat
So, ever wonder what all those TIME_WAITs are doing in your netstat listing? Okay, for those of you who don't spend all your waking hou...
Linux Netfilter tweaks for High traffic servers
If you are serving a high traffic web/DNS server, and recently having PING loss to the server and not all HTTP request were successful to i...
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Cloud Computing What is Cloud Computing The NIST definition of Cloud Computing, Special Publication (SP) 800-145, contains the following...
running a cron at every month end
If tomorrow's date is 01, condition will be true and it will execute subsequent command.
55 23 * * * [ `date -d tomorrow +\%d` -eq '01' ] && /path/to/script
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