using tunnel in putty

Connect 'ssh' as usual with session.

Right click on top panel of active putty ssh connection terminal, and select 'change settings'.

Under 'tunnel' section, added tunnelling for port 22 and port 5900 (remote vnc desktop over ssh tunnel).

Remote desktop from Linux to office PC using 'vinagre'.

Remote desktop from home ubuntu to office ubuntu with 'vinagre' over 'putty ssh tunnel'.

Scp from Linux to office PC via 'putty ssh tunnel'.

USB shielding issue

http://forum.allaboutcircuits.com/showthread.php?t=58811

floating shield will behave like an antenna that causing EMI concern.

Curl web service libarary

http://curl.haxx.se/libcurl/c/https.html

Talking to 3G USB Sierra Modem Under Linux

[root@GsnCommsModule root]# cat /dev/ttyUSB4 &
[1] 601
[root@GsnCommsModule root]# cat > /dev/ttyUSB4
AT!SELRAT?



OK

AT!SELRAT=?



OK

AT!GETBAND?



OK

remount file system as read only

mount -oremount,rw /\0D
mount -oremount,ro /\0D