Flushing DNS Cache In OS X (Panther Through Yosemite)

From time to time, when changing DNS configurations you will need to flush the local DNS cache on your computer. On a Mac, this can easily be done from the Terminal. Just run the following commands for your respective version of OS X…

Yosemite (10.10)

sudo discoveryutil mdnsflushcache;sudo discoveryutil udnsflushcaches;say flushed

Mavericks (10.9)

dscacheutil -flushcache;sudo killall -HUP mDNSResponder

Mountain Lion (10.8) and Lion (10.7)

sudo killall -HUP mDNSResponder

Snow Leopard 10.6 and Leopard 10.5

dscacheutil -flushcache

Tiger (10.4) and Panther (10.3)

lookupd -flushcache

Happy Thanksgiving

Through Him then, let us continually offer up a sacrifice of praise to God, that is, the fruit of lips that give thanks to His name.
~Hebrews 13:15

For each new morning with its light,
For rest and shelter of the night,
For health and food, for love and friends,
For everything Thy goodness sends.
~Ralph Waldo Emerson

“It is the duty of all Nations to acknowledge the providence of Almighty God, to obey his will, to be grateful for his benefits, and humbly to implore his protection and favor.”
~George Washington

“Blessed are those that can give without remembering and receive without forgetting.”
~Princess Elizabeth Bibesco


eric-meyerThe Web is an amazing thing. Computers, wires, switches, networks, data centers, and all kinds of impersonal components, yet we use it in so many personal ways. We share emails, photos, and stories with family and friends often at great distances. Sometimes relationships are born through the Web.

Sometimes we simply make superficial connections. We follow people on blogs and social media that we will never meet and with whom we will never truly connect.

One such connection took a turn an unexpected turn.

I have been involved in Web design to one degree or another since 1995. As I got deeper into Web design and development, I became interested in Web standards and a niche data format standard called microformats. It was through microformats that I first heard of Eric Meyer. I read some of his books and perused his website. Never met him. Never emailed him. Never tried to be his “friend” on Facebook. However, a while back I did follow him on Twitter—along with about 75,000 others. Again, no personal connection.

I expected Tweets about Web standards and other tech stuff.

What I saw was the outpouring of a father chronicling the last year or so of his daughter’s life. A life that has touched many who will never meet her, never speak to her, and never see her grow up.

From his Twitter account, I could tell her time was short. Today was her birthday. She turned six. Today she breathed her last breath.

I don’t know the Meyers family at all. I won’t be flying out for the funeral. I won’t be sending flowers, but as a father, I have a sympathetic sinking feeling in my gut. I can’t imagine what they have gone through and are going through now. I pray I never know.

I have been looking at my children differently today. I want to hold them more, hug them harder, and tell them I love them more often. In short, I want to be a better dad.

What I have learned from Eric about Web standards and microformats doesn’t really matter. What I have learned from him about priorities in life is life-changing. Thank you Eric for sharing your Little Spark with the world.

Did You Win?

Now that the school year is in full swing, there is a lot of action going on in the lives of students, parents, and teachers. Unlike in the summer, activities students do now are graded, judged, or critiqued—as it should be to a degree, but as adults we must always be mindful of how that can create a lot of pressure and can discourage a child. Continue reading