A colleague's Macbook refuses to make any remote connections from the terminal. For example:
macbook-pro% rvm install "ruby-3.2.2" /.../API/FAIRsharing-API 13:18
Searching for binary rubies, this might take some time.
No binary rubies available for: osx/13.4/x86_64/ruby-3.2.2.
Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.
Checking requirements for osx.
Warning: formula.jws.json: update failed, falling back to cached version.
==> Downloading https://formulae.brew.sh/api/cask.jws.json
curl: (6) Could not resolve host: formulae.brew.sh # # #
Warning: cask.jws.json: update failed, falling back to cached version.
==> Upgrading 2 outdated packages:
coreutils 9.1 -> 9.3
[email protected] 1.1.1s -> 1.1.1t
==> Fetching [email protected]
==> Downloading https://ghcr.io/v2/homebrew/core/openssl/1.1/manifests/1.1.1t
Error: [email protected]: Failed to download resource "[email protected]_bottle_manifest"
Failure while executing; `/usr/bin/env /usr/local/Homebrew/Library/Homebrew/shims/shared/curl --disable --cookie /dev/null --globoff --show-error --user-agent Homebrew/4.0.22\ \(Macintosh\;\ Intel\ Mac\ OS\ X\ 13.4\)\ curl/7.88.1 --header Accept-Language:\ en --retry 3 --header Accept:\ application/vnd.oci.image.index.v1\+json --header Authorization:\ Bearer\ QQ== --fail --location --silent --head https://ghcr.io/v2/homebrew/core/openssl/1.1/manifests/1.1.1t` exited with 6. Here's the output:
curl: (6) Could not resolve host: ghcr.io
curl: (6) Could not resolve host: ghcr.io
curl: (6) Could not resolve host: ghcr.io
curl: (6) Could not resolve host: ghcr.io
==> Fetching coreutils
==> Downloading https://ghcr.io/v2/homebrew/core/coreutils/manifests/9.3
Error: coreutils: Failed to download resource "coreutils_bottle_manifest"
Failure while executing; `/usr/bin/env /usr/local/Homebrew/Library/Homebrew/shims/shared/curl --disable --cookie /dev/null --globoff --show-error --user-agent Homebrew/4.0.22\ \(Macintosh\;\ Intel\ Mac\ OS\ X\ 13.4\)\ curl/7.88.1 --header Accept-Language:\ en --retry 3 --header Accept:\ application/vnd.oci.image.index.v1\+json --header Authorization:\ Bearer\ QQ== --fail --location --silent --head https://ghcr.io/v2/homebrew/core/coreutils/manifests/9.3` exited with 35. Here's the output:
curl: (35) Recv failure: Socket is not connected
Requirements installation failed with status: 1.
He doesn't have any network proxy enabled. This problem is currently manifesting on a standard domestic broadband connection. There is no VPN active and turning on a Cisco VPN makes no difference.
There's no problem using web browsers on this Mac; they are able to connect.
Of course, it's been rebooted, and the following instructions from the local IT department have been followed:
If you are experiencing connection issues on a Mac, it might be the
computer's network stack is broken and needs to be recreated. This can
affect both wired and wireless networks at the same time. The
instructions we use are included below for reference, but if you would
prefer IT can do this with you.
Go to this location in Finder/Terminal (make sure it is the system
Library and not the user profile Library)
/Library/Preferences/SystemConfiguration/ Delete any of the files in
that folder called the below, or with similar names such as .backup or
pre-upgrade. com.apple.airport.preferences.plist
com.apple.network.identification.plist
com.apple.wifi.message-tracer.plist NetworkInterfaces.plist
preferences.plist Restart the computer Try connecting to a network
again. If this fails, try the following:
Delete any networking profiles under System Preferences -> Profiles.
Delete the remembered network you are trying to connect to. Check in
Network Preferences if any additional options have a green light that
would not be expected (e.g. Cisco VPN is green and saying connected
when you are not connected to any network), and uninstall the
applications that have these options (not just remove them from the
Network Preferences).
A third-party terminal application also showed the same problems.
Can anyone suggest where to look next?
