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Thanks for installing f.lux.

Your f.lux installer is a .zip file - it should be in your Downloads folder. Install f.lux by double-clicking it.

Once f.lux is installed and running, you should see the f.lux Preferences window appear. Here, you can enter your location and set your usual wake time. f.lux uses this information to create a custom lighting schedule for you.

You can open up Preferences any time to view and change your f.lux settings.

Mac OS square lapel pin, a true hard to find collectible. Vintage, gorgeous and very rare Apple Mac OS logo lapel pin. This lapel pin was provided by Apple corp. To promote the Apple operating system MacOS. The CSSI for Mac supports alphanumeric PINs and is not restricted to numeric digits in general. The User PIN must be entered to write on the card (e.g. Key generation, storing a certificate), delete objects or to use cryptographic functions (e.g. Signing or decryption). Refer to the table below regarding the default User PIN and User PIN length. How to save you most visited websites to your tabs bar in Safari.Please subscribe for more cool feature videos.www.mindbicycle.co.uk. I am using Terminal on a mac OS X Lion to ping a particular address. I am unable to send packets greater that 8400 bytes even with fragmentation. Any reason for this? Macos size max ping ipv4. Improve this question. Follow asked Sep 3 '14 at 5:22. User2995244 user2995244.

The f.lux menu can always be found to the left of your system clock.

f.lux Preferences

Daytime is whenever the sun is up in your location. By default, f.lux is at 6500K during the daytime, and does not change your screen's color.

If you prefer very warm daytime colors, select Options> Expanded Daytime Settings from the f.lux menu.

Sunset is when the sun has set, but you are awake. If you are an early riser, this is also your pre-sunrise morning setting.

Sunset colors are designed to work well with normal warm white room lighting. If you usually wake up before sunrise, you might prefer a more moderate (4500K or brighter) Sunset Prototype: airwaves mac os. setting.

Re-leafed | game jam edition mac os. Bedtime is the time before sleep when you're getting ready for bed (or already in it).

The Bedtime setting changes with your wake time. It removes as much alerting light from your screen as possible so that you can feel your body growing tired. You can go to sleep anytime with f.lux - whenever you feel sleepy.

. . .
f.lux presets

The f.lux preferences window lets you change and preview settings. There are several presets you can choose from. f.lux will default to the Recommended colors preset.

Recommended colors: Use these for the first week while you get used to the change of colors and discover how you like to use f.lux.

Custom colors: Custom color control, click the time of day you want to change and then drag the slider to your preferred color temperature.

Classic f.lux: At sunset, f.lux will fade to 3400K, and turn off at sunrise. For large screens this setting is probably not strong enough to remove all alerting light.

Working late: for extreme night owls, removes solar timing and gives 14 hours of bright waking light.

. . .
Location

For most machines, f.lux can automatically detect your location with OS X Location Services.

You can also use postal codes (US only), the name of a nearby city, or map coordinates (find them on the map at justgetflux.com/map.html).

If you've been traveling, you might need to update your location. Make sure your computer's internal Timezone settings are correct under System Preferences > Date & Time > Time Zone

. . .
Options

Fast transitions: 20 second fade at sunrise and sunset. When unchecked, f.lux changes gradually over one hour.

Sleep in on weekends: For people who want brighter light later on Friday and Saturday nights (and sleep in on Saturday and Sunday mornings)

Extra hour of sleep (ages 13-18): Starts Bedtime one hour earlier for teens and other people who need a little more sleep

Expanded daytime settings: Warmer daytime settings (to 1900K) for people who want to reduce eyestrain or match office lighting

Backwards alarm clock: Calculates how many hours remain until your wake time and gives reminders every thirty minutes when it gets very late

Dim on disable: Gentle fade on disable so it hurts less to check colors

Color Effects

Darkroom: Removes 100% of blue and green light and inverts colors. Darkroom mode also preserves night vision while using a screen.

Movie mode: Lasts 2.5 hours. Preserves colors and shadow detail for watching movies with reduced alerting light.

OS X Dark theme at sunset: Uses the normal theme during the day and switches to dark theme (dock and menu bar) each night at sunset. Disabling f.lux will also disable dark theme.

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Disable

For an hour https://downwup100.weebly.com/igo-maps-android.html. : Disables f.lux for one hour and returns your screen to its normal setting.

Until sunrise: Disables f.lux until your local sunrise.

For current app: Open the app you want to disable f.lux for, then choose this option to disable f.lux whenever a particular app becomes active. You can re-enable f.lux later by opening the app and unchecking this option.

If you often check colors after dark, you might like to use the Dim On Disable setting under Options.

. . .
About f.lux

This is where to find what version you have installed, see our contact information, and get a measurement of your screen's current brightness.

Quit f.lux

This will quit the f.lux process and remove the f.lux icon from your menubar. Always quit f.lux before uninstalling or deleting files.

. . .
Troubleshooting: Answers to some common OS X questions

King Pins Mac Os X

Installing

  1. Click the f.lux Mac download link.
  2. Click the zip file to expand it
  3. Double click the 'Flux' application in your Finder window.
  4. Enter your location and wake time

Uninstalling

  1. Go to the f.lux Settings panel (to the left of your system clock)
  2. Choose 'Quit f.lux'
  3. In Finder, search for 'Flux' and select and delete the f.lux app by dragging it to the trash

Uninstalled but can't delete files

  1. Open Activity Monitor and select Flux
  2. Choose Force Quit
  3. Delete f.lux app by dragging it to the trash

Quit f.lux but the color still remains

Rebooting often fixes any problems with color tint. But if that does not help you, try the following:

  1. Open Activity Monitor and verify there is no 'Flux' process running
  2. In Finder, open System Preferences> Displays> Color
  3. Delete the f.lux profile
  4. Reboot if needed

Other video display issues

Some Macbooks were recalled for problems with video hardware. You can check if your model is on the list at: https://www.apple.com/support/macbookpro-videoissues/

Flashing

On dual-GPU machines we write an ICC profile in order to make the 'switch' between video cards more seamless. In some older machines, and every so often, this doesn't work so well. You can use gfx.io to lock to one card, or to read about how this system works and disable if you want, check out our f.lux profile + prefs article.

If you still have questions about f.lux or need more help, you can check our FAQ or ask a question in our support forum.

20 Oct 2014 Using PIV smart cards with Mac OS X 10.10 Yosemite

Posted at 16:06h in Employee Posts, Tech Notes11 Comments

Using PIV smart cards for HHS VPN login with Mac OS X 10.10 Yosemite

Note: This entire post is basically google search bait designed to (hopefully) allow others struggling with the same issues to save a bit of time. Hope it helps!


October 30, 2014 Update

There is an active Citrix support thread on the 'no valid certificates found' issue. If this is bothering or interesting you, you may want to monitor this URL: http://discussions.citrix.com/topic/357156-no-certificate-found-at-windows-logon-screen-for-smartcard-authentication/

October 24, 2014 Update

The bulk of this post concerns the $29 Pkard product from Thursby which is the first I found with explicit OS X 10.10 support. I just had a chance to test the new Yosemite 10.10 compatible free SmartCard utility from Centrfy mentioned here: http://www.centrify.com/mac/smartcard/free-smart-card-for-federal-military-cac-piv.asp
. Long story short: It works to get past the VPN gateway but throws the same 'no valid certificates found' error when trying to login to the Windows desktop via a Citrix Receiver client. Still no idea why this is happening – on other versions of OS X my smart card credentials transparently passed onto the OS. Still – consider the Centrify software if you don't want to spend $29.

Short Summary

I need to use a HHS PIV card to remotely access computer systems from a brand new Macbook air running OS X 10.10 Yosemite. As of the time I wrote this article, the state of freely available open source software for PIV smart card support on Yosemite is pretty lacking. This will change but if you are in a hurry (as I was) the best thing you can do in the short term is pay $29.95 for the Thursby PKard software from http://www.thursby.com/products/pkard-mac — it installed seamlessly and allowed me to login via VPN although for some reason my certificates were not passed on to the Windows remote desktop system, hopefully I don't need the $179 'ADmitMac' product for that.

I expect the state of open source smart card and tokend implementations to get better and more easily usable on Yosemite so I may only be using the Thursday product for a short time. It did, however work fast and got me successfully logged onto the remote VPN server.

Current status: Thursby PKard software works well on Yosemite for VPN access but the Windows desktop I get sent to via a Citrix client reports 'no valid certificates' and I'm forced to use my standard user login name and password to complete the final authentication. This was not something I needed to do on OS X 10.7 or 10.7 with the open source smart card software stack.

Background

I do some subcontracting work for a few US Government agencies, one of which requires me to be able to connect remotely to US.GOV networks and infrastructure. The way I connect is via a federal standard PIV Card which is a very cool physical badge that doubles as a holder of biometric and personal crypto certificate information. When I'm trying to physically enter a building the PIV card is my secure photo ID badge (with backup biometrics and fingerprints stored o it) — when I try to enter a US Government network 'virtually' the same PIV card doubles as VPN access device because it contains a personal set of crypto keys that uniquely identify me. Two-factor authentication is achieved by having to punch in a PIN code when my certs are presented to the remote system. It's a very slick and interesting system.

From what I can tell, PIV cards are very similar to the CAC cards carried by military members that are often required for secure web browsing and access to military resources In fact, when searching the internet for PIV assistance you will find that some of the best help resources are coming from the military CAC-user community. A perfect example of this is https://militarycac.com/macnotes.htm and https://militarycac.com/cacenablers.htm – the site that I turned to first when looking for OS X Yosemite PIV/smartcard status info.

My Gear

Mac
  • SCM SCR3500 Smart Card Reader – Amazon Link: http://amzn.com/B00434WQVU
  • Belkin flexible USB adapter – Amazon Link: http://amzn.com/B000BK107G
  • Macbook Air running OS X 10.10 Yosemite

Getting the PIV card to work on 10.10 Yosemite

Verify your reader works

Attach your reader, use the OS X 'About this Mac' -> 'System Report' function to verify that your computer and OS actually see and recognize a smart card device:

Buy and install the PKard software


Launch OS X Keychain Assistant

What you want to see is the certificates and credentials that are stored on the smart card. If your USB reader and the PKard software are working, Yosemite 10.10 can now 'see' the crypto info stored on the PIV card

Fix the Trust Chain (If your PIV certificate is not trusted)

This may not be an issue for an upgraded system but on my brand new laptop my host OS was missing the intermediate certificate trust chain. Keychain Assistant helpfully throws up the red text saying: 'This certificate was signed by an unknown authority'

OS X Yosemite does not 'trust' the Certificate Authorities that signed my PIV card certificates.

The solution is to go out and install the intermediate certificates necessary to build the full lenght trust chain.

The source of trust chain certificates almost certainly depends on what agency you work for or are trying to access. In my case I needed the US GOV Health and Human Services (HHS) intermediate certificates and the best online resource I found for HHS certificates needed for PIV cards is actually over on a NIH hosted site:

I downloaded and installed the 'HHS Entrust FPKI Certificate Chain' from the above website:


Installing the certificates results in a chain of trust that culminates with your personal PIV certificates being recognizes as trusted:

Now Test

At this point you have a recognized USB card reader, your personal PIV certificates are visible to Mac OS X and the trust chain is complete. This should be all you need to access or login to PIV-enabled websites.

I removed screenshots showing the portal site I was logging into out of paranoia so I can't show examples of successful logins. I'll just show this OS X window which is the system prompt you get when your certificate is being used and the host OS wants to verify your PIN code as part of the two-factor authentication process.

If you see this, this is your PIN entry prompt and it means that stuff is generally working: Watermelon bash mac os.

Make america glow again mac os. Remember that this is where your PIN goes, ignore the system text about 'keychain password' …

Minor Issue

Using the steps outlined above I can successfully authenticate to the remote access environment I need to use on a daily basis. However, on my older laptop my PIV card credentials were transparently passed onto the Windows OS as well and I was not prompted for a second login.

That is not the case now. After getting past the VPN, the remote desktop session can't see my PIV certificate and I have to fallback to using standard AD username and password. Not optimal but it works for my purposes.

Longer term I want this issue to go away. I'm not sure if it's a Citrix Receiver issue or perhaps this is a designed-in behavior of the Thursday software designed to upsell software that offers more functionality. I was willing to pay $29.99 for the functionality I needed and the software and documentation is great but I'm not going to shell out $179 for SSO access to a Windows Desktop.

I'm going to keep researching this and will keep an eye on the state of open source / free smart card services for Yosemite 10.10. Will update this post as needed.

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