Proxy (justness) Mac OS

Our proxy servers are compatible with all the OS such as: Windows (XP, Vista, 7, 8, 10), Linux, Mac OS, Android, iOS. Control panel: Yes; Links unloading: Yes; Free installation. Regular promotions and purchase or extension discounts. You will be instantly granted an access to your account from proxy to your email once you release the payment. A proxy server is a computer on a local network that acts as an intermediary between a single computer user and the internet, so that the network can ensure security, administrative control and caching service. On your Mac, choose Apple menu System Preferences, then.

  1. Proxy (justness) Mac Os X
  2. Proxy (justness) Mac Os Download
  3. Proxy (justness) Mac Os 11

Unfortunately we are not able to provide step-by-step instructions for every operating system and browser version. If this page does not include instructions for your OS/browser version, please try searching the internet for instructions. Thank you.

Apple OS X (El Capitan, Yosemite, Sierra, High Sierra)

  1. Choose Apple menu > System Preferences, then click Network.
  2. Select the network service you use in the list, for example, Ethernet or Wi-Fi.
  3. Click Advanced, then click Proxies.
  4. Select Automatic Proxy Configuration.
  5. Delete http://proxy.lib.berkeley.edu/proxy.pac from the URL field.

Chrome in Mac OSX

  1. Open System Preferences.
  2. Under Internet & Wireless, click on the Network icon.
  3. Click on the Advanced button.
  4. Click on the Proxies tab.
    (You may need to log in with your Administrator password to make these changes)
  5. Under Select a protocol to configure:, choose Automatic Proxy Configuration. Even if this box is already checked, you may need to click on these words to make the Proxy Configuration File URL text box appear on the right side of the window.
  6. Remove http://proxy.lib.berkeley.edu/proxy.pac from the Proxy Configuration File URL box.
  7. Uncheck the Use Passive FTP Mode (PASV) box.
  8. Click OK to close the Proxies window.
  9. Click Apply, then close the Network window.
    (You may choose to click the lock icon at bottom left of window to prevent further changes)
  10. Close the Advanced window.

Chrome in Windows (Version 71.0.3578.98)

  1. Click the three vertical dots icon in the upper right (Customize and control Google Chrome).
  2. Click on Settings.
  3. Click on the Advanced link
  4. In the System section, click on Open proxy settings.
  5. This will open your computer's Internet Properties window.
  6. Click on the LAN settings button
  7. Uncheck the Use automatic configuration script box.
  8. Delete http://proxy.lib.berkeley.edu/proxy.pac from the Address box.
  9. Click OK to save your LAN settings.
  10. Click OK to close the Internet Properties window.
  11. Close the Google Chrome Settings tab/window.

Chromebook

  1. In Settings > Proxy delete the proxy URL: http://proxy.lib.berkeley.edu/proxy.pac
  2. Click the radio button for Direct internet connection

Edge in Windows 10

Proxy (justness) Mac OS
  1. Click on the windows start key and then settings.
  2. You will find the Proxy option highlighted under Network and Internet Settings bar, select it.
  3. In the box that says script address, delete http://proxy.lib.berkeley.edu/proxy.pac
  4. Click on the box that says Save.

Firefox Quantum (v. 64.0.2) in Windows

  1. Open the Firefox menu.
  2. Click on Options.
  3. In the Find in Options search box type in the word: proxy.
  4. Network Settings should display as the search result.
  5. Click on the Settings button.
  6. Delete http://proxy.lib.berkeley.edu/proxy.pac from the Automatic proxy configuration URL text box.
  7. Select the No proxy radio button.
  8. Click on OK.
  9. Close the Options tab.

Proxy (justness) Mac Os X

Firefox in Mac

  1. Pull down the Firefox menu and select Preferences.
  2. Click on the Advanced icon.
  3. Click on the Network tab.
  4. Under Connection, click Settings.
  5. Click on No Proxy.
  6. Delete http://proxy.lib.berkeley.edu/proxy.pac

Internet Explorer 10 and 11 in Windows

  1. Click the Tools button.
  2. Click on Internet Options.
  3. Click on the Connections tab.
  4. Click LAN settings.
  5. Uncheck the box next to Use automatic configuration script.
  6. Delete http://proxy.lib.berkeley.edu/proxy.pac
  7. Click OK to save your LAN settings.
  8. Click OK to close the Internet Options window.

iPad, iPhone and iPod Touch

  1. Go to Settings.
  2. Select Wi-Fi.
  3. Select the Wi-Fi Network to which you are connected.
  4. In the Wi-Fi Networks window, tap on the arrow to the right of your Wi-Fi network name.
  5. Your IP Address selection should be DHCP.
  6. Scroll down to the bottom of the screen to HTTP Proxy.
  7. Under HTTP Proxy, select Off. This will also delete the proxy URL.

Safari in Mac OS X Leopard and earlier

  1. Pull down the Safari menu and select Preferences.
  2. Click on the Advanced icon.
  3. In the Proxies: option, click on Change Settings.
  4. System Preferences should start up automatically, with the Network window open and Proxies selected.
  5. (You may need to log in with your Administrator password to make these changes).
  6. Under Configure Proxies:, choose Using a PAC file.
  7. (You may need to scroll down the list to see this choice).
  8. Remove http://proxy.lib.berkeley.edu/proxy.pac from the PAC File URL box.
  9. Uncheck the Use Passive FTP Mode (PASV) box.
  10. Click OK to close the Proxies window.
  11. Click Apply, then close the Network window.
  12. (You may choose to click the lock icon at bottom left of window to prevent further changes)
  13. Close the Advanced window.

Safari in Mac OS X Snow Leopard and later

  1. Pull down the Safari menu and select Preferences.
  2. Click on the Advanced icon.
  3. In the 'Proxies:' option, click on Change Settings.
  4. System Preferences should start up automatically, with the Network window open and Proxies selected.
  5. (You may need to log in with your Administrator password to make these changes)
  6. Under Select a protocol to configure:, choose Automatic Proxy Configuration. Even if this box is already checked, you may need to click on these words to make the Proxy Configuration File URL text box appear on right side of window.
  7. Remove http://proxy.lib.berkeley.edu/proxy.pac from the Proxy Configuration File URL box.
  8. Uncheck the Use Passive FTP Mode (PASV) box.
  9. Click OK to close the Proxies window.
  10. Click Apply, then close the Network window.
  11. (You may choose to click the lock icon at bottom left of window to prevent further changes)
  12. Close the Advanced window.

What You Need

  • A Mac computer running OS X. I used OS X Yosemite, butother versions should work too.
  • An iPhone, iPad, or Android mobile device

Purpose

Many mobile apps don't properly implement SSL/TLS.In this project the Mac computer is used toperform a man-in-the-middle attack usingWi-Fi and Bluetooth as shown in the diagrambelow. Any app on the mobile device can easilybe tested to see if it can detect the attack.

Task 1: Sharing the Mac's Internet Connection

On the Mac, connect to a Wi-Fi network.

In the top right of the Mac desktop,click the magnifying glass. In thesearch box, type terminal

Double-click Terminal,as shown below.

In the Terminal window, execute thiscommand:

Proxy (justness) Mac Os Download

ifconfig
You see a list of all the networkinterfaces on your machine, as shownbelow. Your listwill probably be shorter than the onebelow, but it will depend on howmany networking apps you have installedon your Mac. Notice that you don't haveany interfaces named 'bridge'.

On the top left of the Mac desktop, click theApple, 'System Preferences'.

In System Preferences, click Bluetooth.

If Bluetooth is off, turn it on,as shown below.

In System Preferences, at the upper left,click the little rectangular icon made ofdots, as outlined in green in the imageabove.

In System Preferences, click Sharing.

On the left side, click the words (not thecheck box) 'Internet Sharing'.

On the right side, in the'Share your connection from' list, selectWi-Fi.

In the 'To computer using' list, check'Bluetooth PAN', as shown below.

On the left side, click the check box next to'Internet Sharing'. In the 'Are you sure...?' box,click Start.

In the Terminal window, execute thiscommand:

ifconfig
A new network interface appears inthe list with a name starting with'bridge'. This is the interface themobile device will use.

In my case the name wasbridge0, as shown below.

Make a note of your bridge interface name.You will need it later, when youconfigure the 'pf' firewall.

Troubleshooting

The Sharing panel makes it look like you couldshare any type of network connection overany other sort of connection, but that's nottrue. There are nasty bugs here, and strangechanges Apple makes in updates that surprisepeople.

When I used OS X 10.9, I was able to share aniPhone USB connection to computers using Wi-Fi,but that option was removed in OS X 10.10.

If you try some other combination than Wi-Fito Bluetooth, you may have problems.

Testing the Shared Internet Connection

On your mobile device, turn off Wi-Fi andCellular data. The images below showhow to do that on an iPad:

On the mobile device, turn on Bluetooth.Click the name of your Mac computer.

On your Mac, a box pops up. Click Pair.

The portable device should now show that itis 'Connected' to the Mac, as shown below.

On your portable device, open a Webbrowser and go to a website, such asaol.com

The page should load, although it may be slow.

At this point, the Mac is in the middle--allInternet traffic from the mobile device passesthrough it. All that remains is to configureBurp and pf on the Mac to intercept andexamine that traffic.

Task 2: Install Java

Burp requires Java, so you must makesure Java is installed.

On the Mac, open a Web browser and go tojava.com

Click 'Do I have Java?',as shown below.

On the next page, click the'Verify Java Version' button.

If you see a 'Java blocked for this website'message, as shown below, click that message,and click Trust. Then click Run.

You should see the 'Congratulations!' messageshown below. If you don't, follow the instructionson the page to download and install Java.

Task 3: Start a Burp Transparent Proxy

At the upper right of the Mac desktop,click the magnifying glass icon,as shown below.

In the search box, typeburpsuite. If Burp isalready on your Mac, it will be found,as shown below.

If you don't have Burp, open a Web browser,go to

and download the free version. Then repeatthe search.

In the search box, double-clickburpsuite_free.

If a box appears saying 'Are you sure...',as shown below, click Open.

Troubleshooting

If error messages appear, saying you cannotrun software from unknown sources, open'System Preferences', click'Security & Privacy', andconfigure your Mac to Allow apps downloadedfrom Anywhere,as shown below.
In Burp, click the Proxy tab.Click the Intercept sub-tab.

If the Intercept button reads'Intercept is on', click it,so the message reads'Intercept is off',as shown below.

Click the Options sub-tab.At the top, in the 'Proxy Listeners'section, see if there are any entrieson the box shown to the right.

If there are, click each entry tohighlight it, and then clickRemove to remove them all,as shown below.

In Burp,Aat the top, in the 'Proxy Listeners'section, click the Add button.

On the Binding tab,enter a 'Bind to port' of 8080

Click the 'All interfaces'button,as shown below.

Click the 'Request handling'tab.

Click the 'Support invisible proxying'box,as shown below.

At the lower right of the box, clickOK. A box pops up,asking 'Are you sure...?'. ClickYes.

Proxy (justness) Mac Os 11

Burp should now show a Listeneron '*:8080' with the Invisible boxchecked,as shown below.

On the line showing '*:8080', clickthe Running check box twice tocheck it,as shown below.

Task 4: Forward Traffic to the Proxy with pf

Burp is now ready to gather trafficon port 8080 and forward it to theInternet.However, the mobile device doesn'tknow it should be sending traffic tothe proxy server, so Burp won'tever see it.

It is possible to configure the mobiledevice to use a proxy, but not all appswill respect that setting. Some appswill just send traffic past the proxy,defeating our goal of auditing thenetwork traffic. A much better way toaudit apps is to use the Mac firewall'pf' to send all traffic from theBluetooth adapter through the proxy,so the mobile device won't know it'susing a proxy.

To use the 'pf' firewall, we needto create two files: 'pf.rules' and'pf.conf'. For our purposes thesefiles can be very simple.

In the Terminal window, execute thesecommands.

cd

pwd

The 'pwd' command shows the currentworking directory. Make a note of it--youwill need it later.

In my case, the directory was/Users/sambowne

Your directory will be different.

In the Terminal window, execute thiscommand:

nano pf.rules
The 'nano' text editor opens.In nano, type this line, as shown below.If your interface was namedsomething other than 'bridge0',edit this line to use the correctinterface name.

This rule redirects all TCP traffic fromthe Bluetooth connection to Burp,at 127.0.0.1:8080.

rdr pass on bridge0 inet proto tcp from any to any port 1:65535 -> 127.0.0.1 port 8080

Press Ctrl+X, Y, Enter to savethe file.

In the Terminal window, execute thiscommand:

nano pf.conf
The 'nano' text editor opens.In nano, type the twolines shown below.

In the second line, change/Users/sambowne to thecorrect directory you found above.

This configuration file tellspf where to find the rules file.

rdr-anchor 'forwarding'
load anchor 'forwarding' from '/Users/sambowne/pf.rules'

Press Ctrl+X, Y, Enter to savethe file.

The next step is to test the files.

In the Terminal window, execute thiscommand:

sudo pfctl -vnf pf.conf
Enter your password when you areprompted to.

If your files are correct,you'll see a 'Loading anchor forwarding...'message, followed by the line beginningwith 'rdr pass on bridge',as shown below.

If there are errors in your files,you'll see error messages here.If that happens, use nano to editthe files and correct the errors.

When your files pass this test withouterrors, execute this command tostart pf:

sudo pfctl -evf pf.conf
You should see several messagesbut no errors,as shown below.

Task 5: Testing the Proxy

On your mobile device, in the Webbrowser, go toattack.samsclass.info

The page should load,as shown below.

On your Mac, in Burp, click the'HTTP History' sub-tab.

You should see traffic tohttp://attack.samsclass.info,as shown below.

Burp is now intercepting and examiningyour mobile device's Internettraffic.There's no way for your mobiledevice to detect this man-in-the-middleattack for the HTTP protocol, which isone of the reasons it's an insecureprotocol.However, Burp won't be ableto get away with that with a properly-implementedHTTPS protocol.

On your mobile device, in the browser,go to samsclass.info --this is a secure page.

You should see a 'Cannot Verify Server Identity'message, as shown below.

Click Details.

A 'Certificate' box opens, showing thatthis certificate was 'Issued by PortSwigger CA',as shown below.

PortSwigger is the company that madeBurp, and Burp is creating fakecertificates for every website andsigning them. Thebrowser on your mobile device is correctlynotifying you that PortSwigger isnot a trusted CA, indicating thata possibleman-in-the-middle attack is in progress,

Sources

Dev tip: Port forwarding/redirecting (internally) on OS X MavericksPosted 6-9-15 by Sam Bowne