Import in macOS 10.15 Catalina's Apple Music is not working: unknown error -54; Probable cause: File access permissions

There is something wrong with my version of Apple Music after upgrading to macOS 10.15 Catalina. Importing the songs fails with the error "Copying the files failed. An unknown error has occurred (-54)".

The problem disappears when I copy files to the Music Media folder when adding to the Settings / Files / Files library.

So this clearly looks like a problem with file access permissions. I did not change the default settings, and my Music/iTunes has "read & write" only for "me", which seems to be readable.

Is this a known issue (Google seems to be unaware at this point) and how can it be fixed? I prefer a "conservative" solution to grant additional access rights.

Domain Name System – Access instances of applications with public DNS records that resolve to private IPs

I have an instance of Hashicorp Vault running on a DigitalOcean droplet. I've set up Certbot to get a Let's Encrypt certificate for use with TLS. The certificate is valid for use in the domain vault.example.comThis means that the site must be accessed through the DNS A record (which contains a private IP) vault.example.com, In addition, Vault is set to accept only connections that request this particular private IP address so that connections are not accepted localhost or it is public IP. During normal operation, this system works properly, the DNS query resolves to a private IP address, and because the resolved IP addresses are (at least for the time being) in the same datacenter, the resolved IP address can be queried and Vault becomes normally executed. However, if I want to access the Vault UI (a web page interface), which is located at the same address (and port) that Vault is bound to, I can not. When I try to tunnel through SSH, I have to use it localhost This means that Vault does not accept my request and the certificate does not work. When I try to access it through the A record in DNS, the resolved IP on my local network is not valid and can not be found. Is there a workaround that is not super messy?

File Sharing – Why do I get access requests for my Google Drive Folder "Public on the Web"?

I've linked a number of Google Drive public documents folders to my company's website to make the update easier. These are all set to "Public on the Web", as shown here:
Enter image description here

So clearly not limited to my organization or even someone who is logged in to a Google Account.

However, today I received an access request for this folder:

Enter image description here

For the most part, I am paranoid that there is still a subset of users who restrict access through this setting. I do not want to continue this solution if it causes someone to miss important information or I have to manually share a folder with strangers on a regular basis.

It may be that the person has access and was confused, so she sent me the request anyway.

Any advice?

Network – A connection to the access point can not be established because iptables / filter

Configuration:

The Raspberry Pi is connected to the router via Ethernet in subnet 192.168.0.0

Raspberry Pi Access Point in Subnet 192.168.43.0

I use the nordvpn application and when I connect to the vpn it applies a filter on my network:

Problem: After applying this filter, I have I can not connect to my access point. No IP can be obtained. I tried to whitelist ports 68 and 69, but that did not work. What exactly does this cause in the filter?

I also tried:

sudo iptables -A INPUT -s 192.168.43.0/24 -j ACCEPT

Filter:

*filter
:INPUT DROP [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT DROP [0:0]
-A INPUT -i nordvpn-sg220 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A INPUT -s 103.107.198.99/32 -i lo -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A INPUT -s 127.0.0.0/8 -i lo -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A INPUT -s 103.107.198.99/32 -i eth0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A INPUT -s 192.168.0.0/24 -i eth0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A INPUT -s 103.107.198.99/32 -i wlan0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A INPUT -s 192.168.43.0/24 -i wlan0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A INPUT -s 103.107.198.99/32 -i nordvpn-sg220 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A INPUT -s 10.5.0.0/16 -i nordvpn-sg220 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT 
-A INPUT -s 127.0.0.0/8 -i lo -p udp -m udp --dport 22 -j ACCEPT
-A INPUT -s 127.0.0.0/8 -i lo -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -s 127.0.0.0/8 -i lo -p udp -m udp --dport 68:69 -j ACCEPT
-A INPUT -s 127.0.0.0/8 -i lo -p tcp -m tcp --dport 68:69 -j ACCEPT
-A INPUT -s 127.0.0.0/8 -i lo -p udp -m udp --dport 51820 -j ACCEPT
-A INPUT -s 192.168.43.0/24 -i lo -m conntrack --ctstate NEW,RELATED,ESTABLISHED -j ACCEPT
-A INPUT -s 192.168.0.0/24 -i eth0 -p udp -m udp --dport 22 -j ACCEPT
-A INPUT -s 192.168.0.0/24 -i eth0 -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -s 192.168.0.0/24 -i eth0 -p udp -m udp --dport 68:69 -j ACCEPT
-A INPUT -s 192.168.0.0/24 -i eth0 -p tcp -m tcp --dport 68:69 -j ACCEPT
-A INPUT -s 192.168.0.0/24 -i eth0 -p udp -m udp --dport 51820 -j ACCEPT
-A INPUT -s 192.168.43.0/24 -i eth0 -m conntrack --ctstate NEW,RELATED,ESTABLISHED -j ACCEPT
-A INPUT -s 192.168.43.0/24 -i wlan0 -p udp -m udp --dport 22 -j ACCEPT
-A INPUT -s 192.168.43.0/24 -i wlan0 -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -s 192.168.43.0/24 -i wlan0 -p udp -m udp --dport 68:69 -j ACCEPT
-A INPUT -s 192.168.43.0/24 -i wlan0 -p tcp -m tcp --dport 68:69 -j ACCEPT
-A INPUT -s 192.168.43.0/24 -i wlan0 -p udp -m udp --dport 51820 -j ACCEPT
-A INPUT -s 192.168.43.0/24 -i wlan0 -m conntrack --ctstate NEW,RELATED,ESTABLISHED -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A FORWARD -i nordvpn+ -o wlan0 -m state --state RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -i wlan0 -o nordvpn+ -j ACCEPT
-A OUTPUT -d 103.86.96.100/32 -o lo -p udp -m udp --dport 53 -j ACCEPT
-A OUTPUT -d 103.86.99.100/32 -o lo -p udp -m udp --dport 53 -j ACCEPT
-A OUTPUT -d 103.86.96.100/32 -o nordvpn-sg220 -p udp -m udp --dport 53 -j ACCEPT
-A OUTPUT -d 103.86.99.100/32 -o nordvpn-sg220 -p udp -m udp --dport 53 -j ACCEPT
-A OUTPUT -o nordvpn-sg220 -j ACCEPT
-A OUTPUT -d 103.107.198.99/32 -o lo -j ACCEPT
-A OUTPUT -d 127.0.0.0/8 -o lo -j ACCEPT
-A OUTPUT -d 103.107.198.99/32 -o eth0 -j ACCEPT
-A OUTPUT -d 192.168.0.0/24 -o eth0 -j ACCEPT 
-A OUTPUT -d 103.107.198.99/32 -o wlan0 -j ACCEPT
-A OUTPUT -d 192.168.43.0/24 -o wlan0 -j ACCEPT
-A OUTPUT -d 103.107.198.99/32 -o nordvpn-sg220 -j ACCEPT
-A OUTPUT -d 10.5.0.0/16 -o nordvpn-sg220 -j ACCEPT
-A OUTPUT -d 192.168.43.0/24 -o lo -j ACCEPT

Thank you in advance!

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thanks

Attacks – To prevent access to local computer data

Please excuse the terminology because I am not an information security expert.
My question is pretty simple:

How can I guarantee that I am the only one who has access to the data of my local computer (screen, microphone, camera, files)?

* Assuming that no one physically comes to my apartment and messes with the hardware.

I own a Macbook Pro with MacOS. I've heard of cases where a laptop is
Data (camera / microphone, etc.) were retrieved remotely without consent. I wonder if it is possible to absolutely prevent such attacks.

Until recently, I thought the contents of the disk are safe, but I do not think so.

The easiest method I've come up with is turning off the WLAN, reading / writing data to an external drive (such as a USB stick), unplugging the power plug (and turning the Wi-Fi on again).

Does the method described above ensure that nobody next to me can access the data from the external drive? Are there simpler methods?

Thank you very much.

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nginx – Localhost IPv6 access prohibited by rule, client: :: 1

I can see that my Ubuntu VPS, IPv6 localhost getting permission denies the warning for certain directories.

2019/10/16 06:53:41 [error] 6544#6544: *5415 access forbidden by rule, client: ::1, server: example.com, request: "GET /wp-content/uploads/2013/01/ HTTP/1.1", host: "www.example.com", referrer: "https://www.example.com/tag/how-to"

This VPS runs on Ubuntu 18.04, Nginx 1.17.4 & Php7.3 and PageSpeed ​​module. I think that Pagespeed got this error.

Is there a way to allow the internal IP address for directory access?

Access to the non-Chinese Internet in China and security concerns

On this page, there are already many questions on how to navigate the Great Firewall of China. However, the situation is constantly changing. From October to November 2019, I am interested in how to handle it.

What has changed, which justifies a new question?

Ask:

  • What are some convenient ways for a traveler (up to a month) to bypass the restrictions at this time (Oct-Nov 2019)? Requirements: Access to communication channels such as Gmail or Messenger apps, possibly social media. Multi-gigabyte transmissions (watching YouTube, etc.) are not required.

  • The servers of common VPN services are now locked (see, for example, NordVPN-FAQ, which unfortunately can not be connected). Are private VPNs still working or not? all VPN traffic detected (even if the server is not on a blacklist)?

  • Most importantly, What are the consequences of trying to bypass the big firewall? My biggest concern is that trying to do this through a local person's internet connection can get him into trouble (permanent disconnection, police summons, etc.).

  • How does the answer to the above relate to the location in China? I'm not interested in places that the government classifies as sensitive, like Xinjiang or cities near Hong Kong.