Problem: Article: You can use Telnet to check if a certain port is open on your local router or access point. Here's how to enable it: Type windows features in to the search bar. If you don't see the search bar, click the circle or magnifying glass to the right of the Start menu. Click Turn Windows features on or off. Check the box next to Telnet Client and click OK. Click Close when the app is finished installing. Here's how: Type cmd into the Windows search bar. Click Command prompt in the search results. This displays a bunch of network information. The address that appears next to "Default Gateway" in the ipconfig results is the local address of your router. This opens the Microsoft Telnet prompt. For example, if you wanted to see if port 25 is open on your router, and your router's IP address is 10.0.0.1, you would type open 10.0.0.1 25. Telnet will try to connect to the port. If you see a message that says "Please press Enter" or "Press any key to continue," the port is open. If you see a message that says "Could not open connection," the port is not open.
Summary: Enable Telnet for Windows. Open a command prompt. Type ipconfig at the prompt and press Enter. Write down the router's IP address. Type telnet at the prompt and press Enter. Type open (router's IP address) (port number). Press Enter.

Problem: Article: Radio advertisements are a good way to reach local masses. They generally prove to be more cost-effective on a local level than television advertisements, but they also reach more people than fliers and word-of-mouth forms of communication. Identify your target audience, then figure out which radio stations reach that audience most effectively. Contact those stations asking for advertising proposals. Evaluate each proposal to determine which will work best considering the potential reach of the advertisement and the restraints of your budget. Select the best stations and buy advertising space during multiple time slots. Pay for an advertisement or send a press release to local newspapers. Many newspapers also have websites, so you can easily connect to large groups of people in both the real world and digital world. Small community newspapers will have the lowest costs, but they will also have the smallest spread. Newspapers with a higher readership will reach the masses more effectively. Consider your target demographic. For instance, many young adults do not subscribe to print newspapers, so you would be better off advertising with an online news website instead of a print publication. Alternatively, you can write an actual press release and release it using websites like PRweb, PRblog, PRnewswire, and onlineprnews. Most of these websites have both free and premium packages, so choose one that works for your budget. Most students at colleges and universities are just beginning to define themselves, so they might be more interested in learning about new ideas and events than older, working adults who are set in their ways. Find out if you can set up a booth on campus advertising your cause or promotion. Ask about possible opportunities to speak on campus. Post notices on campus bulletin boards. If you are selling tickets to an event, talk directly with whoever is in charge of the educational department most closely related to your topic. Depending on the specific circumstances, you might be able to sell tickets in bulk if you offer an appropriate discount. When applicable, print coupons or deals on any promotional material you intend to hand out. People tend to gloss over plain fliers, but by directly offering some type of guaranteed deal, you can encourage those reading your flier to take another look. Alternatively, you can create and print QR codes to include on promotional materials. Create the QR code using a free service like Kaywa QR Code Generator or GoQR, and make sure that it links to a related blog or webpage. Print the created code on all promotional materials you post and pass out.
Summary: Advertise on the radio. Distribute press releases. Contact local universities. Pass out coupons.

Problem: Article: While valerian root is a fairly safe herbal supplement, there are some side effects that you may experience while taking it. These include dizziness, headaches, and stomach problems. In addition, you may feel very drowsy, even after a full night's sleep, so it is important to use extreme caution when driving or operating machinery. Valerian root is not right for everyone. Before you take it, talk to your doctor to ensure that it is safe for you. Women who are pregnant or nursing should not take valerian root. Children under 3 years old should not take valerian root. People with liver disease should not take valerian root. Valerian root may interact with prescription medications and other herbal supplements you are taking. Always talk to your doctor about all of the medications and supplements you take. Valerian root is known to interact with alcohol and sedatives. Valerian root may also affect your liver function, so be cautious if you are taking medications that are broken down by the liver. If you suffer from insomnia, taking valerian root may not be the best remedy for your condition. Seeing a doctor for a diagnosis can help you discover and treat the root cause of your insomnia. Cognitive behavioral therapy is a very effective treatment for insomnia that is not caused by an underlying medical condition.
Summary: Watch out for side effects. Know who shouldn't take valerian root. Be cautious if you are taking other medications. Consider alternative therapies for insomnia.

Problem: Article: Use a jeweler's loupe or a standard microscope. If you don't have access to a high-powered magnification tool of your own, consider asking a friend or a local lab. Otherwise, just visit a jeweler. Look for small, microscopic flaws that would otherwise be invisible to the naked eye. You should see some small imperfections on a real ruby. Fake and lab-created rubies are almost always flawless, as the natural flaws are so tiny that they are extremely hard to replicate. If you see bubbles of any kind, then you are likely dealing with a fake ruby. Look for flaws other than bubbles. External flaws (blemishes) include scratches, pits, nicks, and small scrapes. Internal flaws (inclusions) are categorized as: cracks (feathers) crystals, negative crystals, silk, fingerprints, halos, cavities, chips, and color zoning. The intricacies of the ruby surface will only be readily visible beneath a 10-power microscope. If the ruby is rounded, rolled, or excessively smooth, then it is probably a fake gem. The stone might be the real deal if the facet is clean, pristine, and sharp-cut.
Summary:
Inspect the ruby with a 10-power magnifier. Expect microscopic flaws. Look at the ruby's cuts and facets.