Category Archives: Uncategorized

How to Setup Free SSL on your website in IIS 8

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The Site I used for this example is https://www.sslforfree.com/

  • Create an account
    • This will let you create 3 free 90 day CERTS
  • Click New Certificate
  • Enter your domain:
    • www.reynoldtech.com
  • Select 90-Day Certificate
  • Auto-Generate CSR
  • Select the Free Plan

Your Certificate has been created

  • Email it to yourself
    • Must be admin email
  • Click Verify Domain
    • Email will be sent to your admin
    • This may take a few minutes
  • Copy the Verification Key from email
  • Go To Verification Page from email
  • Paste in the Verification Code
  • Certificate will be Issued
    • You will get a notification email
  • Click the Install Certificate link from the email

Download Certificate

  • This is a zip file with the following:
    • ca_bundle.crt
    • certificate.crt
    • private.key

We need to convert this to PFX/PKCS#12 so that IIS 8 can read this.

  • Go to: https://sslshopper.com/ssl-converter.html
    • Certificate File to Convert: certificate.crt
    • Type of Current Certificate: Standard PEM
    • Type To Convert To: PFX/PKCS#12
    • Private Key File: private.key
    • Chain Certificate File: ca_bundle.crt
  • Click “Convert Certificate”
  • You will download “certificate.pfx”

Upload all 4 files to your webserver that runs IIS

  • ca_bundle.crt
  • certificate.crt
  • certificate.pfx
  • private.key

On your webserver

  • Right-click: ca_bundle.crt
  • Install Certificate
    • Local Machine
    • Automatically select the certificate store based on the type of certificate
    • Next/Finish

Start IIS 8 Manager

  • Click Your Server
  • Open “Server Certificates”
  • Click “Complete Certificate Request”
    • File name containing the certification authority’s response: certificate.pfx
    • Fill in Friendly Name: www ReynoldTech yyyy-mm-dd
    • You can delete the old one later…
    • Select a certificate store for the new certificate: Personal
  • Navigate to “Sites”
  • Select your website
  • Click “Bindings”
    • If you are renewing, just select the new SSL certificate (Edit)
    • Add
      • Type: https
      • IP address: All Unassigned
      • Port: 443
      • Host name: www.reynoldtech.com
      • Check: Require Server Name Indication
      • SSL certificate: www ReynoldTech yyyy-mm-dd
  • Restart your website
  • Your website is now secure:
  • If this was a certificate renewal, you can now revoke your old certificate on ZeroSSL or just let it expire

Notes, Refences, and Special Thanks

Next Logical step is to set up a permanent redirect, see this:
https://www.reynoldtech.com/setup-hsts-and-rewrite-for-iis-8-and-net/

This is for most of the IIS setup, but won’t work unless you convert to pfx first:
https://www.godaddy.com/help/manually-install-an-ssl-certificate-on-my-iis-8-server-4951

This YouTube video helped me: (Note, this is in Vietnamese I think, but I was able to follow on how to convert to pfx)
https://www.youtube.com/watch?v=l1j7QBFE32s

Overclocking the R9 280x on Ubuntu

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Well, I thought I would run some tests to see if I could get more performance from this card.

First of all DO THIS AT YOUR OWN RISK, you have been warned…

My Test Scenario:
—-
AMD Radeo R9 200 Series
Specifically: R9 280x
OS: Ubuntu 14.04 LTS
cgminer version 3.7.2
cgminer intensity: 5
—-

First some setup if needed:

sudo amdconfig --initial --adapter=all
sudo reboot

How to update your clock and memory:

Enable overdrive, and set the clock.

amdconfig --od-enable
amdconfig --odsc=1000,1500

Where 1000 is the spot for you clock, and 1500 is the spot for your memory. These are the default settings for the R9 280x.

To check your current settings and temperature:

amdconfig --odgc --adapter=all
amdconfig --odgt --adapter=all

Hint: put commands above in a gpu_info script and have it watched, or put it in the startup:

watch ./gpu_info
gnome-terminal  --geometry=63x13+1140+40 -e 'watch ~/bin/gpu_info'

Here is how my test went:

Core Memory GH/s  Temp     Notes
---- ------ ----  ----     -----
1000 1500   1.127 69.00 C  Default Core/Memory
1000 500    1.127 71.00 C  Underclocked Memory
1050 500    1.183 71.00 C
1100 500    1.255 72.00 C
1150 500    1.300 73.00 C
1200 500    1.345 74.00 C  Last stable core clock
1250 500    ????? ???????  Slowed down, then GPU shut down

Now that I have a stable core clock of 1200, I will experiment with the
cgminer intensity. I would let it run for about 30 minutes or more to
make sure it really is stable.

Then save the settings:

aticonfig --odsc=1200,500
aticonfig --odcc

Here are my results when messing with cgminer intensity:

Core Memory GH/s Temp Load Intensity Notes
---- ------ ---- ---- ---- --------- -----
1200 500 1.514 77.00 C 95% d Dynamic intensity is the safest and where I keep it.
1200 500 1.412 76.00 C 90% 6
1200 500 1.487 76.00 C 94% 7
1200 500 1.512 77.00 C 95% 8
1200 500 1.545 77.00 C 97% 9
1200 500 1.565 77.00 C 98% 10
1200 500 1.576 77.00 C 99% 11
1200 500 1.582 77.00 C 99% 12
1200 500 1.585 77.00 C 99% 13
1200 500 1.587 77.00 C 99% 14 Fastest, but desktop may become sluggish.

So for me, I keep it at 1200 core clock, 500 memory clock, and intensity d. There are diminishing returns for increasing the intensity, but may be worth it for some people.