Need help, cannot connect to http sites, https only...

BLUF: I can connect only to HTTPS Web sites, http gives me 'unable to connect to the server' or "no route to host" errors.

While I was out of town, the woman finished downloading something on his MBP that cause a lot of pop-up ads any time during the use of the internet.  I ran Malwarebytes Anti-Malware and it found and removed a bunch of infected files.  All this while the computer was on OS X 10.9.x. Since that time, on any browser (firefox, safari, chrome) we can only connect to the https pages.  For example, http://www.google.com = no go "impossible to connect to the server...". ", while https://www.googlec.com = good, but unfortunately most of the links is http, so it is useless.

I spent most of the last days 2 pouring on the forums, and troubleshooting to resolve this question... what I did:

Reset my router (without success, all the remains connected to it is good (everything else is also Android/windows))

Reset my modem (even had my ISP reset everything they could on their end too)

Back to zero/reinstalled all browsers,

erased the PRAM using the option + command + p + r at startup.

verified that no Proxy box is checked in the advanced network settings

tried to change the DNS, manual, auto, opendns, 8.8.8.8/8.8.4.4, using my ISP DNS googles, nothing changes.

uninstalled all that was installed last week (not a lot, but now I don't know what it was).

disabled the browser all extensions/plug-ins.

IPv6 disabled/re-enabled (set to auto),

What works:

Safe mode, internet is full to the top.

While in safe mode, I was able to connect to the app store (could not in a regular connection or guest user) and upgrade to OS X 10.11.5, but even the installation that does not solve all missing / corrupted files, I always have the same question.

I thought for sure the new OS would have fixed it, but now I'm really stumped.

Is there a way to reset completely all network settings? Could get blocked port 80 (http)? How can I tell?

Any help would be appreciated,

v/r

Sean

(a husband who knows enough about computers to really break, ha)

First, never use any type of software "anti-virus" or "anti-malware" on a Mac. That's how cause you problems, not how you solve them.

1. the present proceedings is a diagnostic test. It doesn't change anything for the better or worse and therefore, by itself, will not solve the problem. But with the help of the results of the tests, the solution may take a few minutes, instead of hours or days.

The test works on OS X 10.8 ("Mountain Lion") and later versions. I do not recommend running it on older versions of Mac OS X. It will do no harm, but it will not do not much good.

Do not be put off by the complexity of these instructions. The procedure is easy to do right, but it is also easy to do wrong, so I had very detailed instructions. You make the tasks more complicated with the computer all the time.

2. If you do not already have a current backup, please back up all the data before doing anything else. The backup is needed on the general principle, not because of what anyone in the test procedure. Backup is always a must, and when you encounter any kind of problems with the computer, you can be more than the usual loss of data, if you follow these instructions or risk not.

There are ways to back up a computer that is not fully functional. Ask if you need advice.

3 here is instructions to run a UNIX shell script, a type of program. As I wrote above, it doesn't change anything. It does not send or receive data over the network. There is no to generate a report on the State of the computer human readable. This report goes nowhere unless you choose to share it. If you prefer, you can act on it yourself without disclosing the contents for me or someone else.

You should ask yourself if you can believe me, and if it is safe to run a program at the request of a foreign national. In general, no, he's not sure, and I encourage it.

In this case, however, there are ways for you to decide if the program is safe without having to trust me. First of all, you can read it. Unlike an application that download you and click to start, it is transparent, anyone familiar with the code can check what it does.

You may not be able to understand the script yourself. But variations of it have been posted on this site several times over a period of years. One of the million registered users to have read the script and set off the alarm if it was dangerous. Then I wouldn't be here now, and you would not be reading this message. See, e.g., this discussion.

However, if you cannot satisfy yourself that these instructions are safe, do not follow them. Ask other solutions.

4. here is a general summary of what you need to do, if you decide to go forward:

☞ Copy text from a particular web page (not this one) to the Clipboard.

☞ Paste into the window to another application.

☞ Wait for the test to run. It usually takes a few minutes.

☞ Stick the results, which will be copied automatically, in a response on this page.

These are not specific instructions; just a glimpse. The details are in parts 7 and 8 of this comment. The sequence is: copy, paste, wait and paste it again. You don't need to copy a second time.

5. try to test in conditions that replicate the problem, to the extent possible. For example, if the computer is slow intermittently, run the test during a downturn.

You may have started up in safe mode. If the system is now in safe mode and works pretty well in normal mode to test run, restart as usual before running it. If you can test only in safe mode, this.

6. If you have more than one user and a user is affected by the problem, and the user is not an administrator, and then run the test twice: once under the affected user and one administrator. The results can be different. The user that is created automatically on a new computer, when you start it for the first time is an administrator. If you are unable to log in as an administrator, verify that the user concerned. More personal Mac have only one user, and in this case this section does not apply. Don't log in as root.

7 load the linked web page (the site "Pastebin") in Safari. Press the combination of keys command + A to select all the text, then copy it to the Clipboard by pressing command-C.

8. start the Terminal application integrated in one of the following ways:

☞ Enter the first letters of his name ("Terminal") in a Spotlight search. Select from the results (it should be at the top).

☞ In the Finder, select go utilities ▹ of menu bar or press the combination of keys shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad and start typing the name.

Click anywhere in the Terminal window to activate it. Paste from the Clipboard into the window by pressing Command + V, then press return. The text that you pasted should disappear immediately.

9. If you logged in as an administrator, you will be prompted for your login password. Nothing displayed when you type. You won't see the usual points instead of the characters typed. Make sure that caps lock is turned off. Type carefully, and then press return. You can get a warning to be careful. If you make three unsuccessful attempts to enter the password, the test is still running, but it will produce less information. If you do not know the password, or if you prefer not to enter, just press back three times at the password prompt. Yet once again, the script will run.

If the test takes much longer that usual to run because the computer is very slow, you can be prompted for your password a second time. The permission you grant by entering it will expire automatically after five minutes.

If you are not logged as an administrator, you will be prompted for a password. The test will run. It just will not do anything that requires administrator privileges.

10. the test may take a few minutes to run, depending on the number of files you have and the speed of the computer. A computer that is abnormally slow may take more time to run the test. During execution, a series of lines is displayed in the Terminal window like this:

    Test started
        Part 1 of 4 done at: … sec        …        Part 4 of 4 done at: … sec
    The test results are on the Clipboard.
    Please close this window.

The intervals between the parties will not be exactly the same, but they give an approximate indication of progress.

Wait for the final message "Please close this window" appear - again, usually within a few minutes. If you don't see this message in about 30 minutes, the test probably won't be completed within a reasonable time. In this case, press the Ctrl + C key combination or the point command to stop it. Then go to the next step. You will have incomplete results, but still something.

In order to get results, the test should be allowed to perform or be stopped manually as shown above. If you close the window of the Terminal, while the test is still running, the partial results will not be saved.

11. when the test is completed, or if you manually stopped, leaving the Terminal. The results have been saved to the Clipboard automatically. They do not appear in the Terminal window. Please do not copy from there. All you have to do is start a response to this comment and then paste it again by pressing Command-V.

At the top of the results, there will be a line that begins with the words «Start time.» If you do not see that, but rather to see a mass of gibberish, you wait for the message "close this window". Please wait and try again.

If personal information, such as your name or e-mail address, appear in the results, make anonymous before posting. Usually it will be not necessary.

12. in the validation of the results, you see an error message on the web page: "you have included content in your post that is not allowed", or "the message contains invalid characters." It's a bug in the software which manages this website. Thanks for posting the results of the tests on Pastebin, then post here a link to the page you created.

If you have an account on Pastebin, please do not select private in exposure menu to paste on the page, because no one else that you will be able to see it.

13. When you are finished with the test, it is gone. There is nothing to uninstall or clean.

14. This is a public forum and others can give you advice based on the results of the test. They speak for themselves, not for me. The test itself is harmless, but all that you can not be. For others who choose to run it, I do not recommend that you view the results of test on this Web site unless I ask.

15. the related UNIX shell script is a notice of copyright. ASC readers can copy for their personal use. The whole nor any part can be redistributed.

Tags: Mac OS & System Software

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