Strange network problem. Dig and nslookup work, but can't ping host. Only reboot help and sometime dscacheutil -flushcache. I had the same problem on my installation. I have solved this when I remove the 'localhost' (127.0.0.1) which was listed as forwarder in my DNS configuration of Mac OS X server. The first is site-specific. At the Terminal, type dig followed by the site’s URL. For example: dig howtogeek.com. In the “Answer Section” of the results, you’ll see the IP address that your computer knows for the site listed. If you don’t see the new IP address, consider changing DNS settings on your Mac and flushing the cache again. Run Dig-N-Rig on Mac, Linux & Chrome OS Dig-N-Rig is a 2D, futuristic, mining simulator that combines resource management with creative building mechanics. Dig-N-Rig takes place in the year 2032, when a team of scientists decide to explore the Earth's final frontier, the core.
We design Mac hardware and software with advanced technologies that work together to run apps more securely, protect your data, and help keep you safe on the web. And with macOS Big Sur available as a free upgrade, it’s easy to get the most secure version of macOS for your Mac.*
Apple M1 chip.
A shared architecture for security.
The Apple M1 chip with built-in Secure Enclave brings the same powerful security capabilities of iPhone to Mac — protecting your login password, automatically encrypting your data, and powering file-level encryption so you stay safe. And the Apple M1 chip keeps macOS secure while it’s running, just as iOS has protected iPhone for years.
The best way to keep your Mac secure is to run the latest software. When new updates are available, macOS sends you a notification — or you can opt in to have updates installed automatically when your Mac is not in use. macOS checks for new updates every day and starts applying them in the background, so it’s easier and faster than ever to always have the latest and safest version.
The technically sophisticated runtime protections in macOS work at the very core of your Mac to keep your system safe from malware. This starts with state-of-the-art antivirus software built in to block and remove malware. Technologies like XD (execute disable), ASLR (address space layout randomization), and SIP (system integrity protection) make it difficult for malware to do harm, and they ensure that processes with root permission cannot change critical system files.
Now apps from both the App Store and the internet can be installed worry-free. App Review makes sure each app in the App Store is reviewed before it’s accepted. Gatekeeper on your Mac ensures that all apps from the internet have already been checked by Apple for known malicious code — before you run them the first time. If there’s ever a problem with an app, Apple can quickly stop new installations and even block the app from launching again.
Apps need your permission to access files in your Documents, Downloads, and Desktop folders as well as in iCloud Drive and external volumes. And you’ll be prompted before any app can access the camera or mic, capture keyboard activity, or take a photo or video of your screen.
With FileVault 2, your data is safe and secure — even if your Mac falls into the wrong hands. FileVault 2 encrypts the entire drive on your Mac, protecting your data with XTS-AES 128 encryption. Mac computers built on the Apple M1 chip take data protection even further by using dedicated hardware to protect your login password and enabling file-level encryption, which developers can take advantage of — just as on iPhone.
Online privacy isn’t just something you should hope for — it’s something you should expect. That’s why Safari comes with powerful privacy protection technology built in, including Intelligent Tracking Prevention that identifies trackers and helps prevent them from profiling or following you across the web. A new weekly Privacy Report on your start page shows how Safari protects you as you browse over time. Or click the Privacy Report button in your Safari toolbar for an instant snapshot of the cross-site trackers Safari is actively preventing on that web page.
Safari uses iCloud Keychain to securely store your passwords across all your devices. If it ever detects a security concern, Password Monitoring will alert you. Safari also prevents suspicious websites from loading and warns you if they’re detected. And because it runs web pages in separate processes, any harmful code is confined to a single browser tab and can’t crash the whole browser or access your data.
The Find My app can help you locate a missing Mac — even if it’s offline or sleeping — by sending out Bluetooth signals that can be detected by nearby Apple devices. These devices then relay the detected location of your Mac to iCloud so you can locate it. It’s all anonymous and encrypted end-to-end so no one — including Apple — knows the identity of any reporting device or the location of your Mac. And it all happens silently using tiny bits of data that piggyback on existing network traffic. So there’s no need to worry about your battery life, your data usage, or your privacy being compromised.
All Mac systems built on the Apple M1 chip or with the Apple T2 Security Chip support Activation Lock, just like your iPhone or iPad. So if your Mac is ever misplaced or lost, the only person who can erase and reactivate it is you.
If you troubleshoot Macs on a regular basis, sooner or later, you’re going to need an old Mac OS X install CD or DVD. Only the truly organized will be able to locate that Mac OS X 10.5 Leopard DVD they last used two moves ago. For those of you looking to find a way to replace your old Mac OS X install discs, we’d like to offer the following suggestions.
You’ll find it all on eBay, albeit not at the best possible prices. Like any commodity that’s not being produced anymore, original Mac OS X installation CDs and DVDs are being kept, hoarded, and sold at impressive profits. Remember when Apple routinely insisted that $129 was a reasonable amount to jump from Mac OS X 10.3 to 10.4? Well, the person who kept their boxed installation disc would like to see their money back—and it’s going to come out of your pocket.
Still, eBay is the place where the selection is the most optimal, the price competition remains fierce, and odds are you can find exactly what you need and have it on your doorstep in a few days’ time. Check that the seller has a reputation around or close to 100 percent before you order what you need.
If it’s for sale and local, you’ll find it on Craigslist. Log in, check the local computer equipment listings and you should be able to find what you need, or at least someone who has a good lead on the Mac OS X CD or DVD that you suddenly found yourself needing for a project.
Unlike eBay, there’s a little wiggle room for negotiation once you’ve contacted the seller via phone or email, so use this to your advantage and with any luck, they’ll come to you with the product.
Like anything else with Craigslist, be on the lookout for scams, deals that seem too good to be true, and the like. Contact the seller, see how you get along and with any luck, you can have the install disc you need by the end of the day.
You’ll have to dig around and pen them into your calendar, but you’ll find what you need here plus Mac-based advice and camaraderie to boot. Growing up in the 1990s, Macintosh User Group techie yard sales were among the greatest things on Earth and allowed you to find almost any piece of hardware or software that you might need. This tradition continues and Apple still keeps a list of physical Macintosh User Groups as well as online-only Apple User Groups, so see what’s near you.
Once your older Mac OS X CD or DVD is in your hand, set aside some time with Disk Utility and some blank CD-Rs, DVD-Rs, or, in the case of the Mac OS X 10.5 Leopard and Mac OS X 10.6 Snow Leopard operating systems, dual layer DVD-Rs. These are your property now, they’re yours to back up and there’s always the chance that someone will be happy to buy your original disc somewhere down the road.