Os X 10 11 5

Mac OS X 10.5 Leopard, released on October 26, 2007, was the biggest change to Mac OS X since Apple first released OS X 10.0 in March 2001. For the first time, a version of OS X was certified as Unix, and the new unified appearance makes Leopard friendlier and less confusing for users. Apple today released OS X 10.11.5 to the public, marking the launch of the fifth update to the El Capitan operating system that was first released on September 30, 2015. OS X 10.11.5 comes nearly.

• Mac Os X El Capitan 10 11 5 Download
• Os X 10.11.5 Update
• 5 + 2 X 10

Update 2020-06-28: This is no longer required on macOS 10.15 Catalina.

• Apple has officially seeded the first public beta for OS X El Capitan 10.11.5, just one day after seeding the first developer beta. It's been two weeks since Apple released OS X El Capitan 10.11.4 to the public. For those who have signed up for the public beta of OS X, the new software is available in the Mac App Store through the Update tab.
• As mentioned, Mac OS X 10.11.5 El Capitan is a minor update that only fixes an issue that could have caused the Spotlight feature to consume a large amount of CPU time if a configuration profile.

Update 2017-02-09: Added details on how to disable signing on a mac that is serving SMB shares.
Update 2017-01-27: Added details on how to verify signing is on/off.
Update 2016-11-29: Added the instructions to reverse the change, for those that have issues with SMB servers requiring signing.
Update 2016-10-05: After a comment suggesting that it wasn't working on macOS Sierra, I tested it on a fresh Sierra installation and got similar performance improvements. It works.

The Issue

After recently upgrading to OS X 10.11.5, I noticed some SMB file transfers were taking a lot longer than usual. Instead of the normal 100MB/sec transfer speeds I typically see between my Macbook Pro and my Synology NAS on a gigabit (wired) network, I was seeing something closer to 30MB/sec.

Turns out I'm not the only one with this issue. Searching Google for '10.11.5 slow smb' returns pages full of results of people reporting the same issue. Most of them say 'switch to AFP and the problem goes away.' That's nice but I specifically use SMB because I have a share that's accessed by Linux, Mac, and Windows - and so SMB is the right solution to keep file naming consistent.

The issue seems to come down to Apple's SMB forcing default enabling of 'client signing' which ruins performance.

One smart person (or conspiracy theorist) guesses that this was a change made by Apple based on the Badlock SMB issue in order to mitigate Man-In-The-Middle attacks. Regardless of the reason, it's a really shitty thing to do to break transfer speeds on a well used protocol without at least acknowledging the problem or suggesting workarounds.

Checking Status of Signing on an SMB Connection

With your share mounted - execute the following command from a Terminal:

You should get a list of fields for each share you have currently connected. Here are some values to pay attention to:

• SMB_VERSION - which SMB protocol version is active.
• SIGNING_SUPPORTED - this means the server side supports signing, it does NOT mean signing is on.
• SIGNING_ON - if 'true' then signing is actually on for this connection.

The Fix (Client)

Buried in one thread on the Apple Discussion Forum is a suggestion to use the /etc/nsmb.conf file to disable client signing on the client end.

After unmounting & remounting the SMB share, I verified this returns transfer speeds to normal.

You can do this in one single command as follows:

Then unmount and remount any SMB shares.

The Fix (Server)

If your mac is hosting SMB shares, you'll need to disable it on that end too.

Implications

Client signing does provide additional security, but who's kidding who - nobody should be running SMB over the internet or on any untrusted network in the first place.

When Won't This Work?

If your server is set to require SMB signing from clients, then this change will break SMB connectivity, and you will have to either reverse the change or change your SMB server settings. This article covers how to change settings on an macOS server but there are many other types of systems out there capable of serving SMB that all have different configurations.

Reversing The Change (Client)

If the fix is causing other issues or lack of SMB connectivity, and you need to reverse it - simply delete the /etc/nsmb.conf file with this command:

By default the file does not exist on a fresh install of OS X/macOS.

Reversing The Change (Server)

To turn signing back on for an SMB server run:

How do I get OS X 10.11 4?

The simplest way to update OS X to 10.11.5 is through the Mac App Store:

• Back up the Mac before beginning, with Time Machine or your backup method of choice.
• Open the  Apple menu and go to 'App Store'
• Under the 'Updates' tab you will find the 'OS X El Capitan Update 10.11.5' available to download.

How do I update my Mac operating system?

To download the new OS and install it you'll need to do the next:

1. Open App Store.
2. Click Updates tab in the top menu.
3. You'll see Software Update — macOS Sierra.
4. Click Update.
5. Wait for Mac OS download and installation.
6. Your Mac will restart when it's done.
7. Now you have Sierra.

How do I upgrade from Lion to El Capitan?

How to upgrade to OS X El Capitan

• Check compatibility. You can upgrade to OS X El Capitan from OS X Snow Leopard or later on any of the following Mac models.
• Make a backup. Before installing any upgrade, it's a good idea to back up your Mac.
• Get connected.
• Download OS X El Capitan.
• Begin installation.
• Allow installation to complete.

Where can I download OS X El Capitan?

To download Mac OS X El Capitan from the App Store, follow the link: Download OS X El Capitan. On the El Capitan, click the Download button. Next, a file Install OS X El Capitan will download into the Applications folder. When the download is over, the installer will launch automatically.

What is the current version of OSX?

Versions

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Can I update from El Capitan to Mojave?

The new version of macOS is here! Even if you're still running OS X El Capitan, you can upgrade to macOS Mojave with just a click. Apple has made it easier than ever to update to the latest operating system, even if you are running an older operating system on your Mac.

What macOS can I upgrade to?

Upgrading from OS X Snow Leopard or Lion. If you're running Snow Leopard (10.6.8) or Lion (10.7) and your Mac supports macOS Mojave, you will need to upgrade to El Capitan (10.11) first.

Is Mac OS Sierra still available?

If you have hardware or software that isn't compatible with macOS Sierra, you might be able to install the previous version, OS X El Capitan. macOS Sierra won't install on top of a later version of macOS, but you can erase your disk first or install on another disk.

How do I install the latest Mac OS?

How to download and install macOS updates

1. Click on the Apple icon in the upper left corner of your Mac's screen.
2. Select App Store from the drop-down menu.
3. Click Update next to macOS Mojave in the Updates section of the Mac App Store.

How do I update my Mac to 10.11 4?

Updating a Mac to OS X 10.11.4

• Did you backup? Don't skip a Time Machine backup!
• Go to the  Apple menu and choose 'App Store' then visit the 'Updates' tab.
• Choose 'Update' alongside the 'OS X El Capitan Update 10.11.4 Update' release.

Can El Capitan upgrade to Mountain Lion?

Older versions of OS X eligible for upgrade. According to Apple, these older OS X operating systems can be upgraded to El Capitan. If you're running a version of Snow Leopard prior to version 10.6.8, you must upgrade to that version. After you upgrade, you can then upgrade to El Capitan by using the App Store online.

Can I upgrade from El Capitan to Mojave?

For the strongest security and latest features, upgrade to macOS Mojave. If you have hardware or software that isn't compatible with Mojave, you might be able to install an earlier macOS, such as High Sierra, Sierra, or El Capitan. You can use macOS Recovery to reinstall macOS.

Can I download El Capitan without App Store?

1 Answer. You can't really download the OS X El Capitan installer app without the App Store.app easily. If you haven't purchased it previously use the answer in How to download OS X El Capitan from the App Store even if never downloaded before macOS Sierra was released or purchased is grayed out.

How do I install an older version of Mac OS?

Here are the steps Apple describes:

1. Start up your Mac pressing Shift-Option/Alt-Command-R.
2. Once you see the macOS Utilities screen choose the Reinstall macOS option.
3. Click Continue and follow the on-screen instructions.
4. Select your startup disk and click Install.
5. Your Mac will restart once the installation is complete.

Should I install macOS High Sierra?

Apple's macOS High Sierra update is free to all users and there is no expiration on the free upgrade, so you don't need to be in a rush to install it. Most apps and services will work on macOS Sierra for at least another year. While some are already updated for macOS High Sierra, others are still not quite ready.

How do I identify my operating system?

Check for operating system information in Windows 7

• Click the Start button. , enter Computer in the search box, right-click Computer, and then click Properties.
• Look under Windows edition for the version and edition of Windows that your PC is running.

What version of OSX do I have?

First, click on the Apple icon in the top left corner of your screen. From there, you can click ‘About this Mac'. You'll now see a window in the middle of your screen with information about the Mac you're using. As you can see, our Mac is running OS X Yosemite, which is version 10.10.3.

What are all the Mac OS versions?

macOS and OS X version code-names

1. OS X 10 beta: Kodiak.
2. OS X 10.0: Cheetah.
3. OS X 10.1: Puma.
4. OS X 10.2: Jaguar.
5. OS X 10.3 Panther (Pinot)
6. OS X 10.4 Tiger (Merlot)
7. OS X 10.4.4 Tiger (Intel: Chardonay)
8. OS X 10.5 Leopard (Chablis)

Should I update to macOS Mojave?

Many users will want to install the free update today, but some Mac owners are better off waiting a few days before installing the latest macOS Mojave update. macOS Mojave is available on Macs as old as 2012, but it's not available to all Macs that could run macOS High Sierra.

How do I reinstall Mojave on Mac?

How to install a new copy of macOS Mojave in Recovery Mode

• Connect your Mac to the internet via Wi-Fi or Ethernet.
• Click on the Apple icon in the upper left corner of your screen.
• Select Restart from the drop-down menu.
• Hold down Command and R (⌘ + R) at the same time.
• Click on Reinstall a new copy of macOS.

How long does it take to upgrade from El Capitan to Mojave?

On a 50Mbps down internet connection I was able to download and install macOS Mojave 10.14.4 in about 30 minutes. The installation took 20 minutes, during which I could not use my Mac.

How Long the macOS Mojave Update Takes.

2 more rows

Is Mac OS Sierra still supported?

If a version of macOS isn't receiving new updates, it isn't supported anymore. This release is supported with security updates, and the previous releases—macOS 10.12 Sierra and OS X 10.11 El Capitan—were also supported. When Apple releases macOS 10.14, OS X 10.11 El Capitan will very likely no longer be supported.

How do I install macOS High Sierra?

How to install macOS High Sierra

1. Launch the App Store app, located in your Applications folder.
2. Look for macOS High Sierra in the App Store.
3. This should bring you to the High Sierra section of the App Store, and you can read Apple's description of the new OS there.
4. When the download finishes, the installer will automatically launch.

How do I download OSX?

Downloading Mac OS X from Mac App Store

Mac Os X El Capitan 10 11 5 Download

• Open the Mac App Store (choose Store > Sign In if you need to log in).
• Click Purchased.
• Scroll down to find the copy of OS X or macOS you want.
• Click Install.

How do I do a fresh install of OSX?

Install macOS on your startup disk drive

The Fix (Client)

Buried in one thread on the Apple Discussion Forum is a suggestion to use the /etc/nsmb.conf file to disable client signing on the client end.

After unmounting & remounting the SMB share, I verified this returns transfer speeds to normal.

You can do this in one single command as follows:

Then unmount and remount any SMB shares.

The Fix (Server)

If your mac is hosting SMB shares, you'll need to disable it on that end too.

Implications

Client signing does provide additional security, but who's kidding who - nobody should be running SMB over the internet or on any untrusted network in the first place.

When Won't This Work?

If your server is set to require SMB signing from clients, then this change will break SMB connectivity, and you will have to either reverse the change or change your SMB server settings. This article covers how to change settings on an macOS server but there are many other types of systems out there capable of serving SMB that all have different configurations.

Reversing The Change (Client)

If the fix is causing other issues or lack of SMB connectivity, and you need to reverse it - simply delete the /etc/nsmb.conf file with this command:

By default the file does not exist on a fresh install of OS X/macOS.

Reversing The Change (Server)

To turn signing back on for an SMB server run:

How do I get OS X 10.11 4?

The simplest way to update OS X to 10.11.5 is through the Mac App Store:

• Back up the Mac before beginning, with Time Machine or your backup method of choice.
• Open the  Apple menu and go to 'App Store'
• Under the 'Updates' tab you will find the 'OS X El Capitan Update 10.11.5' available to download.

How do I update my Mac operating system?

To download the new OS and install it you'll need to do the next:

1. Open App Store.
2. Click Updates tab in the top menu.
3. You'll see Software Update — macOS Sierra.
4. Click Update.
5. Wait for Mac OS download and installation.
6. Your Mac will restart when it's done.
7. Now you have Sierra.

How do I upgrade from Lion to El Capitan?

How to upgrade to OS X El Capitan

• Check compatibility. You can upgrade to OS X El Capitan from OS X Snow Leopard or later on any of the following Mac models.
• Make a backup. Before installing any upgrade, it's a good idea to back up your Mac.
• Get connected.
• Download OS X El Capitan.
• Begin installation.
• Allow installation to complete.

Where can I download OS X El Capitan?

To download Mac OS X El Capitan from the App Store, follow the link: Download OS X El Capitan. On the El Capitan, click the Download button. Next, a file Install OS X El Capitan will download into the Applications folder. When the download is over, the installer will launch automatically.

What is the current version of OSX?

Versions

15 more rows

Can I update from El Capitan to Mojave?

The new version of macOS is here! Even if you're still running OS X El Capitan, you can upgrade to macOS Mojave with just a click. Apple has made it easier than ever to update to the latest operating system, even if you are running an older operating system on your Mac.

What macOS can I upgrade to?

Upgrading from OS X Snow Leopard or Lion. If you're running Snow Leopard (10.6.8) or Lion (10.7) and your Mac supports macOS Mojave, you will need to upgrade to El Capitan (10.11) first.

Is Mac OS Sierra still available?

If you have hardware or software that isn't compatible with macOS Sierra, you might be able to install the previous version, OS X El Capitan. macOS Sierra won't install on top of a later version of macOS, but you can erase your disk first or install on another disk.

How do I install the latest Mac OS?

How to download and install macOS updates

1. Click on the Apple icon in the upper left corner of your Mac's screen.
2. Select App Store from the drop-down menu.
3. Click Update next to macOS Mojave in the Updates section of the Mac App Store.

How do I update my Mac to 10.11 4?

Updating a Mac to OS X 10.11.4

• Did you backup? Don't skip a Time Machine backup!
• Go to the  Apple menu and choose 'App Store' then visit the 'Updates' tab.
• Choose 'Update' alongside the 'OS X El Capitan Update 10.11.4 Update' release.

Can El Capitan upgrade to Mountain Lion?

Older versions of OS X eligible for upgrade. According to Apple, these older OS X operating systems can be upgraded to El Capitan. If you're running a version of Snow Leopard prior to version 10.6.8, you must upgrade to that version. After you upgrade, you can then upgrade to El Capitan by using the App Store online.

Can I upgrade from El Capitan to Mojave?

For the strongest security and latest features, upgrade to macOS Mojave. If you have hardware or software that isn't compatible with Mojave, you might be able to install an earlier macOS, such as High Sierra, Sierra, or El Capitan. You can use macOS Recovery to reinstall macOS.

Can I download El Capitan without App Store?

1 Answer. You can't really download the OS X El Capitan installer app without the App Store.app easily. If you haven't purchased it previously use the answer in How to download OS X El Capitan from the App Store even if never downloaded before macOS Sierra was released or purchased is grayed out.

How do I install an older version of Mac OS?

Here are the steps Apple describes:

1. Start up your Mac pressing Shift-Option/Alt-Command-R.
2. Once you see the macOS Utilities screen choose the Reinstall macOS option.
3. Click Continue and follow the on-screen instructions.
4. Select your startup disk and click Install.
5. Your Mac will restart once the installation is complete.

Should I install macOS High Sierra?

Apple's macOS High Sierra update is free to all users and there is no expiration on the free upgrade, so you don't need to be in a rush to install it. Most apps and services will work on macOS Sierra for at least another year. While some are already updated for macOS High Sierra, others are still not quite ready.

How do I identify my operating system?

Check for operating system information in Windows 7

• Click the Start button. , enter Computer in the search box, right-click Computer, and then click Properties.
• Look under Windows edition for the version and edition of Windows that your PC is running.

What version of OSX do I have?

First, click on the Apple icon in the top left corner of your screen. From there, you can click ‘About this Mac'. You'll now see a window in the middle of your screen with information about the Mac you're using. As you can see, our Mac is running OS X Yosemite, which is version 10.10.3.

What are all the Mac OS versions?

macOS and OS X version code-names

1. OS X 10 beta: Kodiak.
2. OS X 10.0: Cheetah.
3. OS X 10.1: Puma.
4. OS X 10.2: Jaguar.
5. OS X 10.3 Panther (Pinot)
6. OS X 10.4 Tiger (Merlot)
7. OS X 10.4.4 Tiger (Intel: Chardonay)
8. OS X 10.5 Leopard (Chablis)

Should I update to macOS Mojave?

Many users will want to install the free update today, but some Mac owners are better off waiting a few days before installing the latest macOS Mojave update. macOS Mojave is available on Macs as old as 2012, but it's not available to all Macs that could run macOS High Sierra.

How do I reinstall Mojave on Mac?

How to install a new copy of macOS Mojave in Recovery Mode

• Connect your Mac to the internet via Wi-Fi or Ethernet.
• Click on the Apple icon in the upper left corner of your screen.
• Select Restart from the drop-down menu.
• Hold down Command and R (⌘ + R) at the same time.
• Click on Reinstall a new copy of macOS.

How long does it take to upgrade from El Capitan to Mojave?

On a 50Mbps down internet connection I was able to download and install macOS Mojave 10.14.4 in about 30 minutes. The installation took 20 minutes, during which I could not use my Mac.

How Long the macOS Mojave Update Takes.

2 more rows

Is Mac OS Sierra still supported?

If a version of macOS isn't receiving new updates, it isn't supported anymore. This release is supported with security updates, and the previous releases—macOS 10.12 Sierra and OS X 10.11 El Capitan—were also supported. When Apple releases macOS 10.14, OS X 10.11 El Capitan will very likely no longer be supported.

How do I install macOS High Sierra?

How to install macOS High Sierra

1. Launch the App Store app, located in your Applications folder.
2. Look for macOS High Sierra in the App Store.
3. This should bring you to the High Sierra section of the App Store, and you can read Apple's description of the new OS there.
4. When the download finishes, the installer will automatically launch.

How do I download OSX?

Downloading Mac OS X from Mac App Store

Mac Os X El Capitan 10 11 5 Download

• Open the Mac App Store (choose Store > Sign In if you need to log in).
• Click Purchased.
• Scroll down to find the copy of OS X or macOS you want.
• Click Install.

How do I do a fresh install of OSX?

Install macOS on your startup disk drive

1. Go to System Preferences.
2. Сlick Startup disk and choose the installer you just created.
3. Restart your Mac and hold down Command-R to boot into recovery mode.
4. Take your bootable USB and connect it to your Mac.

How do I do a clean install of OSX?

So, let us begin.

• Step 1: Clean up your Mac.
• Step 2: Back up your data.
• Step 3: Clean Install macOS Sierra on your startup disk.
• Step 1: Erase your non-startup drive.
• Step 2: Download the macOS Sierra Installer from the Mac App Store.
• Step 3: Start the Installation of macOS Sierra on the Non-startup drive.

How do I reinstall OSX?

Step 4: Reinstall a clean Mac operating system

Os X 10.11.5 Update

1. Restart your Mac.
2. While the startup disc is waking up, hold down the Command+R keys simultaneously.
3. Click on Reinstall macOS (or Reinstall OS X where applicable) to reinstall the operating system that came with your Mac.
4. Click on Continue.

5 + 2 X 10

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