Summarize the following:
In order to change your DNS settings, your computer must be connected to the Internet. Click the Apple logo in the top-left corner of the screen. A drop-down menu will appear. It's near the top of the drop-down menu. This globe-shaped icon is in the System Preferences window. On the left side of the window, click the Wi-Fi connection to which your Mac is currently connected. If you're using Ethernet, click Ethernet here instead. It's in the lower-right side of the window. Doing so opens a pop-up window. You'll find this option at the top of the pop-up window. It's in the lower-left side of the window. Doing so creates a text field in the "DNS Servers" column. Type in the address for a primary DNS server. Both Google and OpenDNS have free servers that you can use here: Google Enter 8.8.8.8 here. OpenDNS Enter 208.67.222.222 here. Click + again, then enter one of the following addresses: Google Enter 8.8.4.4 here. OpenDNS Enter 208.67.220.220 here. It's at the bottom of the window. This will save your settings and close the "Advanced" pop-up window. You'll find this option at the bottom of the window. Your settings will be applied to your Internet connection from now on. . You can do this by typing sudo killall -HUP mDNSResponder;say DNS cache has been flushed into Terminal and pressing Enter. Flushing the DNS cache will help resolve any website loading errors you might run into when you next open your browser. Click the Apple menu {"smallUrl":"https:\/\/www.wikihow.com\/images\/f\/ff\/Macapple1.png","bigUrl":"\/images\/thumb\/f\/ff\/Macapple1.png\/29px-Macapple1.png","smallWidth":460,"smallHeight":476,"bigWidth":"29","bigHeight":"30","licensing":"<div class="mw-parser-output"><p>I edited this screenshot of a Mac icon.
<\/p><p>License: <a rel="nofollow" class="external text" href="http:\/\/en.wikipedia.org\/wiki\/Fair_use">Fair Use<\/a><br>
<\/p><\/div>"}, click Restart..., and click Restart when prompted. Your new DNS settings will be applied upon opening your browser when your computer finishes restarting. You may notice some initial slow-down when visiting some sites; this is because the DNS library has to repopulate via the new DNS addresses.

summary: Make sure that you're connected to the Internet. Open the Apple menu . Click System Preferences. Click Network. Select your Internet connection. Click Advanced. Click the DNS tab. Click +. Enter the primary DNS address. Enter the alternate DNS address. Click OK. Click Apply. Flush your Mac's DNS cache Restart your Mac.

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The amount of water you consume overall each day is up to you, but experts recommend drinking half your body weight in ounces (that is, if you weigh 150 pounds, drink 75 ounces of water a day). If you forget to drink water before meals--an inevitable occurrence since you are trying something new--don't beat yourself up about it. Just try again at the next meal. You'll get the hang of it. Drink it both first thing when you wake up and 30 minutes before you eat a meal. The feeling of fullness you get when filling your stomach with water prevents you from overeating. Drink after meals. Contrary to rumors that drinking while eating is bad for you, drinking after eating actually aids in digestion and prevents constipation. Drink after exercising. You need to replace fluids, even if you're not noticeably thirsty. Athletes should drink about 1.5-2.5 cups of water beyond the recommended amount (half your body weight in ounces). Tap water gets a bad rap for having chemicals in it, but the EPA directly supervises its production. Bottled water must follow a few regulations, but the EPA can't guarantee its safety like it can with tap water. If your home has a filtration system in place, use it, but don't stress about having access to filtered water. Even though bottled water sales have surpassed those of coffee, milk, and juice, bottled water is terrible for the environment and some cities have started taxing it and removing it from their governments. Tap water is just as safe to drink, it's free, and does not harm the environment to consume. Home water filtration systems can sift out some things in tap water, like chlorine, but none of them can remove all water contaminants. Plus you have to maintain these systems or they will grow contaminants, defeating the purpose. To keep water at your fingertips all day, invest in a good BPA-free water bottle, whether plastic, metal, or glass. You don't have to purchase a water bottle, but you do need to keep up with how many ounces of water you're drinking each day. Perhaps designate a cup at work and one at home and use those instead of a water bottle. When eating out, take advantage of the pre-meal drink order and ask for water. Make sure you sip your glass down two times before the meal is brought out. Your focus on the water diet is drinking water to lose weight, but exercise helps burn calories. If you already have a workout routine in place, don't change it for the water diet. If you don't, begin by walking several times a week before starting in on more strenuous exercise. Only exercise if you are also eating. Exercising while doing a water fast will deplete your metabolism even more, making you vulnerable to the effects of low blood sugar, which can be dangerous.
summary: Drink half your body weight. Drink water often. Decide what kind of water. Get a water bottle. Add some light exercise.