114
votes
Accepted
What is the correct way to use git with gnome-keyring and http(s) repos?
git-credential-gnome-keyring is now deprecated.
Instead, use libsecret. If it's not already pre-installed on your machine, use the following procedure:
Make sure libsecret and its development ...
95
votes
Execute sudo without Password?
The preferred way to grant individual (or group) permissions would be to add files under /etc/sudoers.d
This separates local changes from the default policy and saves time in case the distribution ...
88
votes
Accepted
chsh always asking a password , and get `PAM: Authentication failure`
Thanks to this question on Server Fault, I worked around this by:
Replacing
auth required pam_shells.so
with
auth sufficient pam_shells.so
in /etc/pam.d/chsh.
Then it doesn't ask for ...
71
votes
Accepted
Disable password request from suspend - 18.04
Type the following in the terminal after the $ prompt:
gsettings get org.gnome.desktop.screensaver ubuntu-lock-on-suspend
If the result displayed is true then set it to false using:
gsettings set org....
70
votes
Accepted
mysql doesn't ask for root password when installing
You can recover or set root password without knowing the current one by starting mysql without loading the grant-tables.
Please note the $ in the commands. This is specifying the terminal prompt you ...
56
votes
Ubuntu server default password using Raspberry Pi image?
I found that it takes a few minutes after it boots for Ubuntu on the Pi to create the 'ubuntu' user and its password.
I searched for a solution and found this question. The existing answer was no ...
55
votes
How do I stop the constant requests for a password?
There is an easily changed setting to prevent these requests for your password whenever you need to walk away from your computer for a while.
First follow this path:
Dash --> System Settings --&...
55
votes
MySQL root password setup error
I just found the same issue. So, these were my steps:
I killed the mysql_secure_installation process, sudo pkill -f mysql_secure_installation.
I logged into mysql using:
sudo mysql
of course, sudo ...
48
votes
mysql doesn't ask for root password when installing
It will not ask for the password while installing mysql in Ubuntu 16.04 but you can set it after successful installation in following way:
After completion of mysql installation, run command:
sudo ...
48
votes
Accepted
How to change the gpg key of the pass password store
Use pass init [-p path] <gpg-id> where <gpg-id> specifies the new gpg key with which you want to encrypt your passwords. According to the pass man page,
If the specified gpg-id is ...
46
votes
How can I set up a password for the 'rm' command?
There's no easy way to set up such a password on the rm command itself, not without a lot of code hacking that'll probably break things like apt-get installing packages and removing files, and making ...
44
votes
Why can this command unlock my lock screen without password? (Security question)
In both use-cases, these seem like secondary issues.
If somebody can run gnome-screensaver-command or loginctl as you, remotely, your home, your $PATH, essentially your whole computer —from the ...
Oli♦
- 293k
40
votes
Accepted
USB shared among students: set a password just for writing
Because this drive is going to be used on systems you do not control, or that are not Linux and don't otherwise support the Linux permissions scheme, you're a bit out of luck here.
There's no real way ...
40
votes
Accepted
sudo: 3 incorrect password attempts - can root see the password in clear text?
No, passwords are not logged by default. This would be a security problem, as logs may be read by other administrators, allowing impersonation of the user in case of a slightly mistyped password.
37
votes
chsh always asking a password , and get `PAM: Authentication failure`
Try this:
sudo chsh -s $(which zsh) $(whoami)
36
votes
Accepted
SSH without password with non-default identity file location
It fails for the same reason that ssh-copy-id failed the first time - i.e. because you have chosen a non-default location for the identity file.
You can resolve it in the same way, by adding -i /home/...
34
votes
Accepted
Forgot passphrase (encrypted hard drive), how can I use my computer again?
If you can't remember the password, then that's all she wrote.
All you can do is install a new OS. You don't need to enter recovery mode to do that. Just boot up the live USB and carry out the ...
34
votes
Accepted
How can I get GPG Agent to cache my password?
In addition to setting up the cache times in gpg-agent.conf, you also have to make sure GnuPG is actually interfacing the gpg-agent. GnuPG 2 and upwards generally does, but the GnuPG 1 branch does not....
32
votes
Accepted
Can root see my encrypted /home folder?
Short answer: Yes and no.
Can root see my encrypted /home folder?
Yes. As long as you are logged in, root as well as any sudo user can see your decrypted files. Also, when you wake up from sleep, ...
31
votes
How do I make Ubuntu accept a short password?
You can simply run sudo passwd username in a terminal. Root is allowed to ignore the password rules, and you can enter whatever you want.
You can also edit /etc/security/pwquality.conf to suit your ...
30
votes
How can I clear my cached gpg password?
GPG: In a single command:
gpg-connect-agent reloadagent /bye
SSH: for ssh agent you probably want those two:
ssh-add -D #delete identities
ssh-agent -k #kill ssh-agent
29
votes
sudo: 3 incorrect password attempts - can root see the password in clear text?
Login attempts successful and unsuccessful are logged in
/var/log/auth.log
Example of a successful attempt:
Oct 23 21:24:01 schijfwereld sudo: rinzwind : TTY=pts/0 ; PWD=/home/rinzwind ; USER=root ...
28
votes
Accepted
I can omit the last few characters of my password on Ubuntu 14.04
If you don't have administrator access, there's not much you can do.
That said, this seems to be because of administrator incompetence. This sounds suspiciously similar to password encryption using ...
27
votes
How do I run specific sudo commands without a password?
Sorry but there's so much confusion over this and some really complicated answers, that i feel i must weigh in here before someone misunderstands and does something crazy.
Using visudo!!
visudo
Add ...
26
votes
mysql doesn't ask for root password when installing
After the installation just:
sudo mysql
(yes, no user no pass)
You are now in the mysql console.
Execute:
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'my_new_pass';
FLUSH ...
25
votes
Is it possible to use secret-tool to lookup existing seahorse passwords?
I made a utility, lssecret, that lists all items using libsecret, including all GNOME Keyring items. It looks like libsecret automatically adds a key value pair for every item, but Seahorse doesn't ...
25
votes
Accepted
How to save SSH options and connections in Ubuntu?
You can use a per-user ssh-config file located in
~/.ssh/config
or a system-global one in
/etc/ssh/ssh_config
that stores the basic settings for each connection.
Example:
Host example_host
...
25
votes
Accepted
Can I view the password of a mounted encrypted volume?
Full disk encryption uses cryptsetup to manage LUKS encrypted devices and not ecryptfs and ecryptfs-unwrap-passphrase is a part of ecryptfs-utils which I guess is not installed on your system and has ...
25
votes
Accepted
SSH without password does not work after upgrading from 18.04 to 22.04
The RSA SHA-1 hash algorithm is being quickly deprecated. There is a workaround for re-enabling RSA at SSH-RSA key rejected with message "no mutual signature algorithm" .
To fully resolve ...
Only top scored, non community-wiki answers of a minimum length are eligible
Related Tags
password × 2715login × 535
sudo × 272
ssh × 206
command-line × 192
encryption × 182
server × 155
security × 153
permissions × 144
root × 144
authentication × 128
boot × 105
14.04 × 92
users × 86
networking × 82
12.04 × 79
keyrings × 78
grub2 × 74
16.04 × 73
password-recovery × 73
lock-screen × 64
20.04 × 62
wireless × 61
mysql × 58
gnome × 57