Author Archives: The Amixa Web Guru

1080p HDTV as second monitor display blinks on and off while watching video

Random Bits, Windows 10, Windows 7 tips

I have a second monitor which is a Philips 1080p 40 inch TV (that I switch the HDMI inputs to alternate between cable and a second monitor).

When I play streaming video from YouTube on the monitor, the display blinks on and off continuously.  This does NOT happen when using the Philips for TEXT displays (outlook, explorer, etc.)

The fix is easy.

First, make sure your second monitor (HDTV) is in “PC” mode. (This is not the fix in itself).

Secondly, I have the most current NVIDIA drivers installed.

Go to NVIDIA CONTROL PANEL (right click on an empty desktop)

Click ADJUST DESKTOP COLOR SETTINGS

click on your secondary monitor name (in my case, PHILIPS)

You will see a dropdown box appear.

Set “content reported to the desktop” to “Desktop Programs”.

 

That’s it.

Your secondary monitor should now be rock stable while watching videos.

 

let me know if this helped you!

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sprintf or printf do not output float variables correctly

PIC XC8

Have you run into situation under the MPLAB IDE where you are trying to output variables, but even though you have the format correct, a float variable outputs with a .0 value?

Example

(from somewhere else in code)
AIRTEMP=751
====
float adjustedtemp= 0.0;
adjustedtemp= (AIRTEMP + 5)/10;
printf("Air Temp: %5.2f \r\n", adjustedtemp);

the result looks like this

Air Temp: 75.00

when it SHOULD look like this

Air Temp: 75.60

this is due to a bug in the way MPLAB handles floats.

Two easy ways to fix it:

#1:

adjustedtemp= (AIRTEMP + 5.0)/10.0;

or,

#2

adjustedtemp= ((float)AIRTEMP + 5)/10;

Either of these methods will result in the correct value being displayed during your sprintf() or printf() command.

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Coldfusion 10 and Windows Server – Installation Musings

Windows Server

Here are some various tips and tricks as part of my brain dump for the process to get ColdFusion 10 running under Windows Server 2016.

  1. Run the ColdFusion installer under compatibility mode – Windows 7
  2. you must have the following installed under IIS
    1. CGI, ISAPI (both), ASP.NET
  3. make sure the APPPOOL for the site has 32 bit compatiblity to TRUE under app pool – advanced settings
  4. immediately after installing CF, you need to go download the latest hotfix (version 24 as of June 2017) and install it.  Directions are here
  5. Read this – it’s VERY important.
    1. you must create the two virtual directories CFIDE and JAKARTA and point them to the correct folders.
    2. NOTE: on my system, the default site was SITE ID #1 and the first actual CF site was ID #2.  However, the only way that CF would work was for me to point the jakarta directory to “1” (the default site)…
  6. Get friendly error messages->
    1. CF admin, Settings, UNCHECK “Enable HTTP status codes“
  7. debug your website easily… (do #6) and then:
    1. CF admin, Debugging and Logging
      1. CHECK “Enable Robust Exception Information”
      2. CHECK “Enable Request Debugging Output”
      3. Debugging & Logging > Debugging IP Addresses
        1. add your workstation’s IP address to this list
      4. NOTE:  Make sure you TURN OFF these settings before going live on a public site
    2. Refresh your CF pages and a boat load of debugging info should show up at the bottom of each page
  8. Mail configuration is under Settings>Mail, if your website needs it.

Any other questions/comments?  Let me know!

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Coldfusion with PostgreSQL – Timeout issue when setting up CF Data source

Windows Server

Upon trying to connect to a remote POSTGRESQL database server — which I can both PING fine and connect to using the Windows POSTGRESQL odbc 32 bit drivers —

you get this error

Connection verification failed for data source: mytest_post
java.sql.SQLException: Timed out trying to establish connection
The root cause was that: java.sql.SQLException: Timed out trying to establish connection

==

Here is the easy fix.  (presumtion of CF 10)

  1. make sure you apply the most current CF hotfix
    1. easy process – read this blog post
  2.  for an “out-of-the-box” setup, (noting that CF 10 is running on JRE 6.x), download the JDBC driver version 4.0 (which is for JRE 6.x)  here
  3.  put that JAR file in the following directory
    1. C:\ColdFusion10\cfusion\lib
    2. remove the old POSTGRESQL JAR file postgresql-9.3-1101.jdbc41.jar
    3. restart the CF services
  4. Go setup the postgreSQL connection and verify it.  Should now give you an “OK”

This was a NIGHTMARE to sort out.  I am hoping this can help someone!

 

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XC8 compiler installer hangs on installation

PIC XC8

If you are having a problem with the MICROCHIP XC8 installer hanging on installation under Windows 10 — (see screenshot below):

 

Very easy solution…

 

Change your screen resolution to 1080p, and TURN OFF all “screen scaling/screen zooming” settings

Reboot your computer (trust me, just do this step)

The installer should work fine now.

when done, change your screen back to whatever settings you previously had it at…

let me know if this works for you.  I spent 2 hours trying to figure this one out.

 

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Classic ASP switch to TLS 1.2

Classic ASP, IIS Tips & Tricks, Microsoft SQL Server MSSQL, Windows Server

I recently came across a failed PCI scan for one of our clients.  This failure was due to TLS 1.0 being enabled on that Windows server.

We ran IISCRYPTO (link) and disabled TLS.

Upon restarting the server, the Classic ASP site threw the following error:

Microsoft OLE DB Provider for ODBC Drivers (0x80004005)
[Microsoft][ODBC SQL Server Driver][DBNETLIB]SSL Security error

That error is because the web server is no longer using TLS 1.0 and the Classic ASP application (web site) is using too old of a driver on the server, to communicate with TLS 1.1 and/or 1.2.

To get around this, go download the latest ODBC driver from Microsoft, which is version 13.1 as of today.  You will most likely need to install the 32-bit version (as most ASP apps run in 32 bit mode).  Link here

Install that driver.

then go to your Windows server, Administrative tools and open the ODBC Data Sources (32-bit)

The 32-bit ODBC Administrator is found here: C:\Windows\SysWOW64\odbcad32.exe

go to the SYSTEM tab

add a new data source

Pick “ODBC DRIVER 13 for SQL Server”… (hit finish)

 

put in the name (no spaces or punctuation)

server name (or IP address) (NEXT)

 

authentication (USE SQL server auth, enter the LoginID and PW) (NEXT)

 

continue, then test the connection (it should work).

go to your Classic ASP application.

 

 

You will need to update the connection string to this:

DSN=YourNewSystemDSNName;Uid=YourSQLUsernameHere;Pwd=SQLpassword;

You can now use IISCrypto and disable TLS 1.0

Reboot the server

re-test your Classic ASP app and now you should be up and running on TLS 1.1 or 1.2

 

 

 

 

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Adding DKIM records to Kerio Connect

Random Bits, Windows Server

If you want to implement DKIM (signed email) to your Kerio Connect setup, here’s the easy way.

Start by reading these links

Kerio link 1

Kerio link 2

The following setup is for Kerio Connect 9.x, and Windows Server 201X DNS server

  1. Make sure your email server is properly connected to a good public DNS server, such as Google (8.8.8.8 and 8.8.4.4.)
  2. Go to Kerio Connect, Configuration, Domains.
  3. Click SHOW PUBLIC KEY and copy it.
  4. paste it into notepad.  We’ll need to rework it a bit to be compatible with Windows DNS.  Note:  Windows DNS limits the length of one single string of characters, so we’ll need to split it into several lines.
  5. Reformat it like this.  Break it into even lines, around 100 characters each.  The exact length doesn’t matter.  Just do it evenly, hit enter at each breakpoint.
  6.  NOTE:  make SURE there is a SPACE between the semicolon and the p
    1. as in v=DKIM1; p=xxxx
  7. example properly reformatted
  8. Copy this reformatted string
  9. Go to the domain in your Windows DNS server.  For example, if your domain is mydomain.com go to that domain in the DNS Server management console.
  10. right click, other records, add TXT record
  11. Record name is:  mail._domainkey
  12. after you enter that, you will see the FQDN look like this:
    1. mail._domainkey.mydomain.com
  13. Paste the string from #7 above into the text box, as-is.
  14. Hit ok and save that change.
  15. repeat this for any other domain.  On Kerio Connect, all the domains on the one email server use the exact same DKIM keys.
  16. Now we are going to test the DKIM record to make sure it can be properly read.
    1. go to https://mxtoolbox.com/
    2. type in your domain
    3. hit check MX
    4. when that completes (successfully), change the drop down to “DKIM Lookup”
      1. type in your full DKIM string:
      2. mail._domainkey.mydomain.com.
    5. Run the DKIM Lookup
    6. You should see a successful test, and your report should look just like this:
    7. if it doesn’t look like this, then you did something wrong with your TXT record creation, or you forgot to put the entire DKIM key in the lookup.
    8. Since all is well, proceed.
  17. next, go back to Kerio Connect.
  18. while still on the domain, check the checkbox to enable DKIM
  19. If the DNS on your email server is setup properly, and it is communicating properly to your DNS server, you should see the box above.
    1. If you see a message “DKIM public key not found in public DNS”
    2. try restarting KMS
    3. Try going to a command prompt and ipconfig /flushdns
  20. Presuming that you do see the proper message in #18 above, we now need to do a test email to verify everything is working.
  21. Go to http://www.appmaildev.com/en/dkim
  22. click next step
  23. the site will generate an email address
  24. copy this email address and send a blank email to that address FROM AN EMAIL ACCOUNT ON THE DOMAIN you setup with DKIM above.
  25. Wait for the site to receive the email and generate it’s report (a few seconds)
  26. you should see DKIM = PASS

 

While you’re at it, don’t forget to create SPF and DMARC records for your domain to cover all the bases.

 

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PIC XC8 error warning: (1472) –CODEOFFSET option ignored: duplicate or conflicting option

PIC XC8

If you receive the following error during an XC8 project build, here is how to fix it

 

warning: (1472) –CODEOFFSET option ignored: duplicate or conflicting option

 

the fix:

under project properties, XC8 Linker, make sure there is either

a) no value (blank) in the CODEOFFSET field

b) some legitimate value in CODEOFFSET that works with your bootloader

 

a ZERO — 0 — as pictured will cause this error during build.

 

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