How to install SSL Certificate on a WLC (exported from ASA)

Imagine a situation that you have installed SSL Certificate on your ASA firewall.

Installation of SSL certificate on ASA is an another topic which you can find a step-by-step guidance here.

How to Edit Menu on MAC OS X

To edit Main menu on mac locate the file and edit the

NTP and Daylight Saving Time in North America - Cisco IOS

If you want to set up Central Time (Chicago) on you deice you

ntp server [IP of your NTP 1 server]
ntp server [IP of your NTP 2 server]
clock timezon UTC -6
clock summer-time DST recurring  2  sun march 02:00 first sun nov 02:00

And now we can verify:

Dig dns server with PERL

Today I created the PERL script to check if the DNS is resolve by other DNS servers
To do that you will need create the file


And paste the below code:

Flush DNS cache


ipconfig /flushdns

Macintosh OS X

sudo dscacheutil -flushcache 
sudo killall -HUP mDNSResponder

Linux (depend on distribution)

/etc/rc.d/init.d/nscd restart 
/etc/init.d/nscd restart
/etc/init.d/dnsmasq restart
/etc/init.d/named restart

HD Tune Pro - Flash Drive Review

To test three USB Flash Drive I used Windows software HD Tune Pro is a hard disk / SSD utility with many functions. It can be used to measure the drive's performance, scan for errors, check the health status (S.M.A.R.T.), securely erase all data and much more.

For OS X you can use free software available from Apple Store Blackmagic Disk Speed Test