Convert units between Metric and Imperial in AutoCAD

In AutoCAD, the unit is a generic unit with no direct connection to metric or imperial units.  The simple way is to use Scale command in Model space to resize either scale up by 2.54 or vice versa.

Note, any measure text would need to be manually recalculated.

Change AutoCAD Paper Space to Black and White

To remove colours from paper space and set to Black & White:

1. Go to File > Page Setup Manager.
2. Select the desired page setup.
3. Click Modify.
4. Under Plot style table (pen assignments), check Display plot styles.

Import CTB File to AutoCAD

To import CTB file to AutoCAD:

1. Go to Tools > Options.
2. Switch to Files tab.
3. Expand Printer Support File Path > Plot Style Table Search Path option.
4. Drop CTB file into the the specific file path from above.
5. Restart AutoCAD.

Fake, Hoax, Phishing, and Scam Examples

Examples for children educational purproses.

http://www.hirum.com.au/blog/difference-between-scam-hoax-and-phishing-emails/

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

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.

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.

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	ẽ	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.

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.

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.