nginx program unistall

From what you described, I wouldn’t try to uninstall anything yet.

If you’re seeing an nginx page only when visiting that video website, nginx is most likely running on the website’s server, not installed on your Mac. nginx is common web-server software, and a broken or misconfigured site can show its nginx error/default page.

The Terminal message in your screenshot is also normal. It’s only telling you that macOS uses zsh as its default shell. It doesn’t indicate nginx is installed.

Also, clicking through a Safari certificate warning doesn’t by itself install nginx. Apple recommends not continuing when a site’s certificate can’t be trusted. Avoid fraud by using encrypted websites in Safari on Mac – Apple Support

Before running any uninstall commands you found online, I’d first confirm whether nginx is actually on the Mac. In Terminal, enter:

`which nginx`

That command is harmless and doesn’t require a password. If you post back exactly what Terminal returns, that would help narrow this down.

macman1585 wrote:

the fact that my imac uses zsh as its default shell,does it require any actions by me? i mean does it run the terminal properly?

The fact that you are even asking this question suggests that you are not very familiar with Unix/Linux command line environments, and should be very careful about running any Terminal commands, especially any you find on Internet sites.

There are other threads in these forums where the authors blindly typed in long Terminal commands that they didn't understand, commands that when decoded, translated to

• Download an arbitrary script from a malware site
• Run that script with Administrator privileges

This is not something that you want to do! Also, even if you don't fall prey to something like that, the command line environment is one that operates largely without a safety net of any kind. Some commands are harmless or easily reversible. Others can be destructive with no easy way to recover at all.

(And to answer the question: Yes, zsh runs the Terminal properly, in its own way.)

The display shown in Terminal is solely an indication that you have an older login with an older default shell, and Apple has changed the default shell for newly-created accounts. That display is unrelated to anything installed.

Use zsh as the default shell on Mac - Apple Support

Given you sre seemingly unfamiliar with the shell, I’d ignore that message and continue with whichever shell was configured, or maybe suppress the message.

If you really want to switch the shell from bash or whatever older shell default to zsh, you can use the GUI for that:

macman1585 wrote:

the fact that my imac uses zsh as its default shell,does it require any actions by me? i mean does it run the terminal properly?

If you get that message, it means that you are not using zsh as your default shell, and Apple wants to encourage you to switch.

I believe that in older versions of macOS, the default shell was the GNU implementation of bash. Apple stopped including newer versions of bash with the operating system, and I suspect the reason was that the FSF changed the licensing from GPL v2 to GPL v3, and Apple didn't want to live by the new licensing terms. So Apple started pushing zsh, whose licensing terms they are presumably happier with.

Unless you are a real Unix/Linux command line power user, the differences in shells aren't worth worrying about.

macman1585 wrote:

ok,about the terminal,thanks.

what about the nginx? can i get rid of it ,or is it something that the website decide it to add to its function and i cant do anything about it?

The chances of a drive-by webserver install are approximately nil.

Of a functioning drive-by nginx install, less than likely.

Of the risks arising from a rogue nginx install, yet less.

I expect you have seen nginx referenced when accessing a remote webserver, as it is a fairly common choice.

macman1585 wrote:

as said before, i was asked to approve the certificate of this site and if i trust it.considering that i use it for 3 years without a problem, i gave my permission to enter the site and approve the certificate.

That usually means your web browser client and its certificate trust store is an older version, or can mean that the web server hasn’t been maintained and updated.

It can also mean that your network communications are being intercepted and redirected.

Old trust stores and web server configuration errors are more common than communications interception.

Unless you are a valuable target, and then the calculations here will shift.

and then comes a message that nginx was installed

"thank you for installing nginx"

That was very likely from the web server. Not from your client.

Whoever installed nginx on the server likely didn’t clear that default.

but i cant find any program installed at least in the finder search.

A drive-by install of a web server is very unlikely, at best.

macman1585 wrote:

this is the logo of the nginx

No, it most definitely isn’t the logo for nginx.

Official Apple Support Community

now the message i got entering the website i use was:

" this connection is not private

this website might be faking the ::::::: site to steel financial or personal data,

we suggest you go back to your page.

safari warns you for not safe websites.....

for more information about this site you can see the certificate (link) .if you understand the danger you may visit this website."

The server certificates are incorrect, or your trust store is outdated,

so i didnt pay any attention to this warning bcs. i visit this website nearly 3 years now and i trusted it.i should have see the certificate and post it here.

Usually either the server-presented certificates are outdated, or your local trust store is outdated.

This could be connection interception, as well. Less than common for most cases, but possible.

this is what i saw at the certificate info:

That’s a bogus certificate, based on the domain.

but i wouldnt understand any of it,i got no idea.

the first numbers are serial numbers as they say and the last 2 SHA are the prints

Yesh, it’s an incomplete view of a certificate, and a certificate seemingly not useful.

the question is : is it dangerous? what kind of info they gather from me/if they do ,when i visit this website and where they send it too?

The “this connection is not private” message you included describes what can happen, if this interception or this server is malicious.

Is this one server, or all servers?

macOS 13 has an older trust store, and some certificate vendors have updated.

Here is an overview of the trust atore and of manually adding certificates:

• Certificate Trust Store on iPhone, iPad, … - Apple Community
• Updating the Certificate Trust Store on m… - Apple Community

A newer Mac with a current trust store is going to be less effort than manually managing your own trust store.

I am not familiar with nginx. Even if a Web site used nginx on their servers, I don't see why it would be on your Mac unless you took some action to install it.