Linux стандартный логин пароль

I just installed Ubuntu 20.04 LTS whats the default password? [closed]

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This is a Raspberry pi 3 b+ running Ubuntu 20.04 LTS 32bit (I downloaded from here) and the screen says:

Ubuntu 20.04 ubuntu tty1 ubuntu login: 

2 Answers 2

Also, it on a PI 4 using Ubuntu Server 20.04, even though it presents the login prompt you have to wait about 2 mins for the SSH authorisation to be completed.

And when you login it does a load of unattended updates as of writing it installed 26 packages and you cannot install anything else while it does these update

This was the key, I even reinstalled it thinking something went wrong. Waited a few minutes with a PI 2 and all the sudden started accepting the default user and pw. Thank you

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Пароли по умолчанию в Kali Linux

Рассмотрим, какие в Kali Linux стандартные (дефолтные) пароли и как их поменять.

Пароль пользователя Kali Linux

Какой пароль Kali Linux LIVE

При загрузке LIVE образа учётные данные для входа не требуются. Запуск команд с sudo также не требует паролей.

Но если появилось блокировки, то для этого окна нужно вводить пароль «kali».

Какой пароль по умолчанию в Kali Linux

При установке системы вам будет предложено создать учётную запись пользователя — имя пользователя и пароль для него. Эти учётные данные в дальнейшем будут использоваться для входа в систему.

Если появилось блокировки, то для этого окна нужно вводить пароль вашего пользователя, который вы используете для входа в систему.

Как войти в Amazon EC2

Пользователь: kali

Как поменять свой пароль в Kali Linux

Для смены своего пароля запустите команду:

введите старый пароль, а затем два раза новый пароль.

Как поменять пароль для другого пользователя в Kali Linux

Чтобы поменять пароль для другого пользователя, запустите команду вида:

Какой пароль у root в Kali Linux

По умолчанию пароль root не установлен. Чтобы его установить выполните команду:

После этого вы можете войти как пользователь root.

Что делать, если забыл пароль от Kali Linux

Дефолтный пароль Kali Linux в VMware и ARM образах

Во всех официальных образах, в том числе VMware и ARM, стандартными учётными данными являются:

Пользователь: kali

Пароль: kali

Пароль образа Vagrant

Имя пользователя: vagrant

Пароль: vagrant

Пароль Kali Linux в SSH

Пароль SSH точно такой же как и пароль у пользователя в системе. Т.е. в стандартных образах имя пользователя и пароль kali. После установки системы или смены пароля пользователя, при подключении по SSH используйте пароль вашей учётной записи в системе.

Рекомендуется настроить вход с использованием файлов ключей, подробности смотрите в «SSH (ч.4): Создание и настройка ключей OpenSSH».

Стандартные учётные данные в инструментах

Некоторые инструменты, поставляемые с Kali, будут использовать свои собственные дефолтные учётные данные (другие сгенерируют новый пароль при первом его использовании). Следующие инструменты имеют пароли по умолчанию:

BeEF-XSS

Имя пользователя: beef

Пароль: beef

Конфигурационный файл: /etc/beef-xss/config.yaml

MySQL

Пользователь: root

Для первоначальной настройки программы и установки пароля пользователя root, запустите команду:

mysql_secure_installation

Если вы уже установили пароль MySQL в Kali Linux, но забыли его, то смотрите статью «Как сменить пароль рута MySQL в Kali Linux».

PostgreSQL

Пользователь: postgres

Пароль: postgres

Как поменять пароль PostgreSQL

sudo systemctl start postgresql.service sudo -u postgres psql postgres

В приглашении psql введите команду:

\password postgres Введите новый пароль:

OpenVAS

Имя пользователя: admin

Для настройки программы выполните команду:

Metasploit-Framework

В официальной документации сказано:

Имя пользователя: postgres

Пароль: postgres

Конфигурационный файл: /usr/share/metasploit-framework/config/database.yml

Но при попытке подключения из msfconsole с этими учётными данными возникает ошибка:

Error while running command db_connect: Failed to connect to the Postgres data service: ВАЖНО: пользователь "postgres" не прошёл проверку подлинности (Peer)

Ещё один вариант ошибки, если не указать пароль:

Error while running command db_connect: Failed to connect to the Postgres data service: fe_sendauth: no password supplied

Для её исправления можно поступить следующим образом. Запускаем службу PostgreSQL, создаём нового пользователя (имя user) с паролем и создаём базу данных (названа metasploit) от имени этого пользователя:

sudo systemctl start postgresql.service sudo -u postgres createuser user -W sudo -u postgres createdb -O user metasploit

Затем (замените user на имя пользователя, а user_pass на пароль пользователя):

msfconsole db_connect user:user_pass@localhost/metasploit db_status

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What is the default root password?

I installed Ubuntu 12.04 LTS (Precise Pangolin), 64 bit. Nowhere was I asked to set password for root. I just installed AccuRev SCM software. It was installed under the /root folder by default. Now I try do something on that folder. I tried with su to switch to root, but I don’t know its password. Should I always use sudo or get the default root password, if any? How do I create a launcher for software installed inside the /root directory?

this lameass website won’t let me answer, but the correct answer is: sudo usermod root -p password; sudo passwd root; then enter the new password. presto, root is unlocked and you can now su/login with root

How idiotic things can get — su is disabled, sudo is not installed, this distribution is used as a base for mssql server, the instructions say you need to sudo open some network ports to enable MSDTC. Back to square 1.

4 Answers 4

By default, the root account is accessed by sudo.

For a complete discussion in the topic, and information for how to set a root password, see: RootSudo — Community Ubuntu Documentation

With that said, it is extremely unlikely you need to set a root password, I advise you use

Or for graphical applications, use gksu

«extremely unlikely you need to set a root password»: I do not agree. If one is logged in as «joeblo», and then needs to move their /home/joeblo directory aside to move in a new one from a previous installation. They cannot do that safely from their own user account. They must do that from some other user account. Yes, they could sudo and then create a second user account, and then sudo and do the move, but that is a waste of effort. This happens to me every time I load a new version of Linux since I want to replace the installer-generated /home/joeblo directory with my previous one.

Bodhi.zazen has by far the best answer; boot to recovery mode (wiki.ubuntu.com/RecoveryMode). If you have a corrupted groups file and can’t sudo (sometimes there is no substitute for being root).

at lindhe — askubuntu.com/questions/11825/… . In addition gksu is in theory better for integrating and security with graphical applications and sudo / su are intended for command line interface (IMHO).

Password for root is not set in Ubuntu which means the root login is disabled by default.

The user account created during Ubuntu installation is associated with all sudo capabilities. You could use sudo for commands that require root privileges in Ubuntu terminal.

However you can enable the root account and set a password for it. To do so use:

Firstly you will be asked for your current user password and after this you will be asked for the new password twice (new and retype password) as your new root password.

I couldn’t remember ever setting up my root password so I couldn’t remember it and $ su root was failing with every password I tried. I ran your command $ sudo passwd root and it worked perfectly. Thanks for a great answer.

You should still configure the root password for Ubuntu. Since it’s disabled by default and you create a user password for all admin tasks on installation, booting into single user mode will give access to a root shell — even if your boot options have been set to prompt for one. It doesn’t have one to ask for unless you set it

sudo has benefits, but not having a root password set can also be troublesome. I had a machine last week that failed to boot up, showing the message «Give root password for maintenance (or press Control-D to continue):» The problem is that the machine did not have a root password set, and just pressing enter would only display the message again, as would control-D, so I had to take the hard drive out and access it from another machine to fix it.

By default the Ubuntu installer does not set up a root password and therefore you don’t get the ability to log in as root. Instead you are given the ability to perform tasks with superuser privileges using sudo.

While you can create a password for the root account allowing you to log in as root with su , there are some distinct benefits to using sudo.

Sudo is an alternative to giving people a root password in order to perform superuser duties. In a default Ubuntu install the person who installed the OS is given «sudo» permission by default.

Anybody with «sudo» permission may perform something «as a superuser» by pre-pending sudo to their command. For instance, to run apt-get dist-upgrade as a superuser, you could use:

By default, sudo will ask you for your own account password when performing this. This helps security. This is remembered for a few minutes so if you have a few tasks to do with sudo it will only ask you for your password on the first.

You will see the above usage of sudo pretty much anywhere you read a tutorial about Ubuntu on the web. It’s an alternative to doing this.

su apt-get dist-upgrade exit 

With sudo, you choose in advance which users have sudo access. There is no need for them to remember a root password, as they use their own password. If you have multiple users, you can revoke one’s superuser access just by removing their sudo permission, without needing to change the root password and notify everyone of a new password. You can even choose which commands a user is allowed to perform using sudo and which commands are forbidden for that user. And lastly, if there is a security breach it can in some cases leave a better audit trail showing which user account was compromised.

Not having a root password makes brute force attacks on the root account impossible: this is relevant if you allow login over SSH. Instead, an attacker would need to know a local account name.

Sudo makes it easier to perform a single command with superuser privileges. With su , you permanently drop to a superuser shell which must be exited using exit or logout . This can lead to people staying in the superuser shell for longer than necessary just because it’s more convenient than logging out and in again later.

Getting a root shell

With sudo, you still have the option of opening a permanent (interactive) superuser shell with the command:

. and this can still be done without any root password, because sudo gives superuser privileges to the su command.

And similarly, instead of su — for a login shell you can use sudo su — or even sudo -i .

However when doing so you just need to be aware that you are acting as a superuser for every command. It’s a good security principle not to stay as a superuser for longer than necessary, just to lessen the possibility of accidentally causing some damage to the system (without it, you can only damage files your user owns).

Just to clarify, you can, if you choose, give the root user a password allowing logins as root, if you specifically want to do things this way instead. I just wanted to let you know about the Ubuntu convention of preferring sudo instead and let you know that there is an alternative.

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