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Questions related to security of data on the Raspberry Pi. Also includes questions on using it in a security system (e.g. as a firewall).

1 vote

how to make sure that some code is working on a rpi?

In addition to the answer from @lenik there are some authentication methods. It depends on what service you are using. With ssh you can verify with entries in ~/.ssh/known_hosts. With https you can ve …
Ingo's user avatar
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2 votes
Accepted

Can malware persist in the Pi outside of the OS/SD card?

If you have physical access to a computer, including Raspberry Pi, you do not have any chance to avoid attacks. The attacker can just do what he want with the hard- and software, even simply replace t …
Ingo's user avatar
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1 vote

Passwordless git server ssh keys not working unless password is enabled?

As far as I understand there are two authentication systems: one for ssh and one for the git repository. As you wrote ssh authentication works but accessing git fails. You only try to fix it with sett …
Ingo's user avatar
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1 vote

wpa_supplicant.conf in raspberry pi 3

The default way to protect password containing files on unix is to restrict read and write access only to root so nobody else can read this file. In your case you should do if not already done: rpi ~ …
Ingo's user avatar
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2 votes

Rasperry Pi wireguard configuration and user access

The question is very good explained with the diagram. But, sorry, it also shows that it is a very complex situation I can't give a detailed answer without access to the network to analyze its behavior …
Ingo's user avatar
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2 votes

Setting up a raspberry pi as a gateway firewall for security purposes?

On the Raspberry Pi OS you have its firewall nftables available. It is the successor of iptables and replaces the old popular iptables, ip6tables, arptables and ebtables. So I suggest to use nftables …
Ingo's user avatar
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4 votes
Accepted

Does Raspbian keep a security log file, and what is its location?

The Raspberry Pi OS uses systemd, so you will find logs in its journal. It also contains the logging from the OpenVPN server. Look at it to the current boot with: rpi ~$ journalctl --boot=0 --pager-en …
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6 votes
Accepted

Adding Debian Security Repository GPG key

AA8E81B4331F7F50 112695A0E562B32A Executing: /tmp/apt-key-gpghome.YcaQxjGmfn/gpg.1.sh --keyserver keyserver.ubuntu.com --recv-keys AA8E81B4331F7F50 112695A0E562B32A gpg: key 4DFAB270CAA96DFA: public key "Debian Security … Archive Automatic Signing Key (10/buster) <[email protected]>" imported gpg: key EDA0D2388AE22BA9: public key "Debian Security Archive Automatic Signing Key (9/stretch) <[email protected]>" imported …
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1 vote
Accepted

How to handle two networks (one for Smart devices and another to access internet) in a home ...

You can setup an access point that the smart devices can connect. Then you can connect the RasPi wired to your internet router but don't enable routing. This way the smart devices can use data on the …
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