Thursday, July 06, 2017

Fake, Hoax, Phishing, and Scam Examples

This page above is a good read.


  • Strange URL: not even using its service


  • Free money and tap to preview: no free lunch

  • Account issue with message in PDF: be careful about openning an attachment


  • Account security alart: sounds urgent



  • Account disabled and tap to preview: sounds urgent and did not even write out provider name

  • Bank activity and tap to preview: acronym and typo made people think it is more real



  • Message from a hacked trusted souce with strange URL: thinks before actions


Wednesday, September 07, 2016

FreeRDP Increase TCP Timeout

After upgrading to Windows 10, FreeRDP took longer to connect after password input and often disconnected itself before displaying the screen.

To resolve this problem, increase TCP timeout value.
1) Open /FreeRDP/libfreerdp/core/tcp.c
2) Search TCP_USER_TIMEOUT
3) Change optval to higher value.  E.g. 20000
4) Build and install again.  No need to uninstall or reconfigure.

Tuesday, July 19, 2016

Autocad Draw only Perpendicular Line

For AutoCAD to draw only perpendicular line (northing or easting and nothing else), type command ORTHO, then set to ON.

To draw line at any angle, set ORTHO to OFF.

Sunday, February 14, 2016

Type French Characters in Ubuntu

To enable typing French characters in Ubuntu:
System Settings -> Keyboard.
Switch to Shortcuts tab.
Select Typing in left nav.
Modify Compose Key from disable to Right Alt (i.e. Alt Gr) or any personal choice.

Accent A E I O U Type Keyboard
' á é í ó ú Acute accent single quote
" ä ë ï ö ü Diaeresis double quotes
` à è ì ò ù Grave accent grave
~ ã ĩ õ ũ
tilde
^ â ê î ô û Circumflex accent caret
Example: ê = [Right Alt] + [Shift] + [6], [e]


To add French support to LibreOffice Writer:
System Settings -> Language Support.
Click Install/Remove Languages and add French.
Restart LibreOffice Write and it should have French in dictionary.


In LibreOffice Write, Tool -> Language -> For all Text -> More.
Change Default languages for documents to French.

Add Language Blocked by Untrusted Packages

Try to add new language supports in Edubuntu and block by untrusted packages error.

Requires installation of untrusted packages:
This requires installing packages from unauthenticated sources.

Try to run Software Updater to get latest package update.  Then try to add language again.

Monday, October 26, 2015

Lubuntu Display Scale Up and Number of Desktop/Workspace

To change Lubuntu screen scaling, create a file .Xresources under the user home directory.  View>Show Hidden if the file is not visible.  Input the following line to the file.
Xft.dpi: 125

Save and reboot.

To change the number of Desktop, click Preference>Openbox Configuration Manager.  Go to Desktops tab, then change the number.

Wednesday, October 21, 2015

HANA Studio contains hidden objects

In HANA Studio, some packages have (contains hidden objects) suffix to the package name.

To see all objects, go to Window > Preferences.  Under SAP HANA | Modeler | Content Presentation, check Show all objects.

Tuesday, October 20, 2015

[Invalid UTF-8] showed up for some Chinese characters in Ubuntu

When attempted to type some Chinese characters in Ubuntu, [Invalid UTF-8] showed up after selecting a character.  

If the situation only happened to some characters but not all, try to switch the output from full width to half width characters.

Sunday, October 11, 2015

Ubuntu 14.04 Initial User Configuration

There are a few things to modify to improve usabilities and securities.

Disable the online shopping results from the Ubuntu Unity Dash under System Settings>Security & Privacy>Search.
Disable Sticky edges under System Settings>Screen Display>Sticky Edges.
Disable guest account.
Adjust brightness and lock.
Install Comodo Antivirus.
Install Google Chrome.
Uninstall Ubuntu Firefox extension

To check hardware information, run lshw -sanitize > lshw.txt in terminal then type exit to finish outputting the file.

Friday, January 09, 2015

Format External USB Storage Drive for PlayStation 3

It is known early on that PlayStation 3 needs USB storage drive to be formated in FAT32 based on the official documentation.  However, Windows OS will not be able to format a driver larger than 32GB into FAT32 format.  Some suggested exFAT would work but PS3 still did not detect the drive.

There was a discussion on PlayStation forum that suggested to use third-party application to format the drive that may support up to 1TB.  One of the suggestion was 2Tware Fat32Format.  It worked.

Saturday, July 27, 2013

How to turn off Sony NEX-F3 Self-Portrait Self-Timer

When attempted to set the timer on Sony NEX-F3 with LCM flipped toward the front, an warning message would appear: Invalid with current Self-portrait Self-timer setting. Set Self-portrait Self-timer to "Off".

Go to Menu -> Setup. Under "Shooting Settings" subgroup, Self-portrait Self-timer option should be there. Change the setting from On to Off.