user@computer# tail -f /var/log/messages
connect USB to SERIAL cable to your network device and to your computer. turn on network device, and locate port (mine is ttyUSB0)
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[ 3201.770270] usb 7-1: new full speed USB device using uhci_hcd and address 2
[ 3201.934529] usb 7-1: configuration #1 chosen from 1 choice
[ 3202.360357] usbcore: registered new interface driver usbserial
[ 3202.360391] USB Serial support registered for generic
[ 3202.360484] usbcore: registered new interface driver usbserial_generic
[ 3202.360491] usbserial: USB Serial Driver core
[ 3202.373747] USB Serial support registered for pl2303
[ 3202.373815] pl2303 7-1:1.0: pl2303 converter detected
[ 3202.385706] usb 7-1: pl2303 converter now attached to ttyUSB0
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user@computer# aptitude install minicom
user@computer# sudo minicom -s
go to Serial port setup, press A and change Serial Device (in my case it’s /dev/ttyUSB0).
now, press E and change Bps/Par/Bits to 9600 8N1.
Choose Save setup as df1, and then Exit.
voila! you’re connected 
for extra configuration, you can edit /etc/minicom/minicom.users or simply use man minicom.
I’ve decided to get my CCNA CCAI (Certified Cisco Academy Instructor) certificate so I’ll be studying for next two months and try to preparemyself for fasttrack. here, You’ ll be able to see my progress and my first step is to revise my knowledge in subnetting.