How To Run Multiple Dropbox Accounts Simultaneously

One of the most useful computer applications that I’ve come across so far is Dropbox. There are alreadycountless articles about this automatic folder backup and synchronization tool here in MakeUseOf, including manyusage spin-offs like: synchronizing research data andtriggering automatic downloads.

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OSX lion and Mountain Lion – flush cache the hard way….

Until now I used ‘dscacheutil -flushcache’ to flush my cache.. When one develops sites the cache is the time consuming factor in this flow. However.. it did not work anymore. Although, not fast enough for me, so I was looking and found the following command on the apple site itself (rtfm ? ) :

 sudo killall -HUP mDNSResponder

This one worked like a charm.. Please update your development hours with this 1 command.

Handy tools for Airplay

Airplay is a nice feature.. But I always try and want more (hehe.. who does not?).. To let your mac be an airplay device in your iphone or itunes, use the following tool:
http://www.airserverapp.com/download

In The Netherlands there is a repair shop which handels repairs for your i-devices… Please let me know if this shop is a good one…
http://repair.iphoneclub.nl/index/p/5/id/PDARiPad3so/tid/2928/ipad-3-reparatie-onderzoek-gratis

 

Typing without a keyboard

One day, we all can free our fringers from typing on QWERTY keyboard as we can use our Brain to type in the future. The video shown below is a “serious research” that shows two guys type WITHOUT keyboard. There isn’t any much word and information about the research, however, from the video, we can see that this technology will be available pretty soon.

NTPD update linux

On RHEL/CentOS you can force ntpd to syncronize on service startup by doing the following:

# vi /etc/sysconfig/ntpd

There is an OPTIONS variable with something like:

OPTIONS=”-u ntp:ntp -p /var/run/ntpd.pid”

Add the -x parameter:

OPTION=”-x -u ntp:ntp -p /var/run/ntpd.pid”

You may also want to set SYNC_HWCLOCK option to “yes”, in order to also syncronize hardware clock.

Then restart the service:

# service ntpd restart

The ntp daemon will be forced to resync every time you restart the service.