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1 vote

Where do I find the fingerprints gpg keys used to sign Linux Mint software?

You can retrieve the Linux Mint signing key over a TLS-secured connection by running gpg --keyserver hkps://keyserver.ubuntu.com --recv-key "27DE B156 44C6 B3CF 3BD7 D291 300F 846B A25B AE09&...
Stephen Kitt's user avatar
2 votes

What important side effects causes on a RHEL system to disable user namespaces?

Namespaces are what drives containers, might make a lot of isolation methods possible, and might be used by daemons as additional optional layer of security. They are quite a central piece in modern ...
Marcus Müller's user avatar
0 votes

How to check if port forwarding is enabled?

I understand this question as check if the port is being forwarded I'd use something like this test_port() { if [ $# -eq 0 ]; then echo "Usage: test_port <port_number>" ...
Rainb's user avatar
  • 121
0 votes

Failed NVMe M.2 SSD, broken filesystem, unwriteable; can I wipe it anyway?

The only thing that might work is the "secure erase" command, but normally SSDs that have gone readonly as a result of media defects can not be written to because the internal firmware ...
Simon Richter's user avatar
1 vote

How can I properly harden my system against some basic exploits like modifications of .bashrc?

Your ~/.bashrc file should (at the very least) have permissions like this: -rw-r--r-- 1 kaz kaz 886 Mar 25 20:59 /home/kaz/.bashrc If there is anything in it you don't want others to read, like some ...
Kaz's user avatar
  • 8,586
4 votes

How can I properly harden my system against some basic exploits like modifications of .bashrc?

Usually you cannot protect the system against yourself if you're this system super user. Whatever you do, e.g. sudo chmod 700, or sudo chattr, the bad actor can undo. You think using sudo is safe ...
Artem S. Tashkinov's user avatar
1 vote
Accepted

How to make the key slot to unlock at GRUB stage to be the first active one?

OK, so now you know the passphrase you used is in key slot #1 rather than key slot #0. The next step is to find out whether key slot #0 is in use or not. You can list the state of each key slot with a ...
telcoM's user avatar
  • 101k
0 votes

How to make the key slot to unlock at GRUB stage to be the first active one?

This refers to the number in order. Since the slots count starts from 0, slot with the number 0 is the "first" one, slot 1 is the "second", slot 2 is the "third" and so ...
smetanka's user avatar

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