How to fix sudo no tty present and no askpass program specified error

Question

I am trying to compile some sources using a makefile  In the makefile there is a bunch of commands that need to be ran as sudo    When I compile the sources from a terminal all goes fine and the make is paused the first time a sudo command is ran waiting for password  Once I type in the password  make resumes and completes   But I would like to be able to compile the sources in NetBeans  So  I started a project and showed netbeans where to find the sources  but when I compile the project it gives the error   sudo  no tty present and no askpass program specified   The first time it hits a sudo command   I have looked up the issue on the internet and all the solutions I found point to one thing  disabling the password for this user  Since the user in question here is root  I do not want to do that   Is there any other solution

User · Answer

For the reference  in case someone else encounter the same issue  I was stuck during a good hour with this error which should not happen since I was using the NOPASSWD parameter   What I did NOT know was that sudo may raise the exact same error message when there is no tty and the command the user try to launch is not part of the allowed command in the  etc sudoers file   Here a simplified example of my file content with my issue   bguser ALL   NOPASSWD        command a arg a        command b arg b       command c arg c   When bguser will try to launch  sudo command b arg b  without any tty  bguser being used for some daemon   then he will encounter the error  no tty present and no askpass program specified    Why   Because a comma is missing at the end of line in the  etc sudoers file      I even wonder if this is an expected behavior and not a bug in sudo since the correct error message for such case shoud be  Sorry  user bguser is not allowed to execute etc

User · Answer

1 open  etc sudoers  type sudo vi   etc sudoers  This will open your file in edit mode   2 Add Modify linux user  Look for the entry for Linux user  Modify as below if found or add a new line    lt USERNAME gt  ALL  ALL  NOPASSWD  ALL   3 Save and Exit from edit mode

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I faced this issue when working on an Ubuntu 20 04 server  I was trying to run a sudo command from a remote machine to deploy an app to the server  However when I run the command I get the error  sudo  no tty present and no askpass program specified The remote script failed with exit code 1  Here s how I fixed it  The issue is caused by executing a sudo command which tries to request for a password  but sudo does not have access to a tty to prompt the user for a passphrase  As it can   t find a tty  sudo falls back to an askpass method but can   t find an askpass command configured  so the sudo command fails  To fix this you need to be able to run sudo for that specific user with no password requirements  The no password requirements is configured in the  etc sudoers file  To configure it run either of the commands below  sudo nano  etc sudoers  OR sudo visudo  Note  This opens the  etc sudoers file using your default editor  Next  Add the following line at the bottom of the file    Allow my user to run all commands without password my user ALL  ALL  NOPASSWD ALL  Note  Replace my user with your actual user If you want the user to run specific commands you can specify them   Allow my user to run specific commands without password my user ALL  ALL  NOPASSWD  bin myCommand  OR   Allow my user to run specific commands without password my user ALL  ALL  NOPASSWD   bin myCommand   bin myCommand   bin myCommand  Save the changes and exit the file  For more help  read the resource in this link  sudo  no tty present and no askpass program specified That s all  I hope this helps

User · Answer

No one told what could cause this error  in case of migration from one host to another  remember about checking hostname in sudoers file   So this is my   etc sudoers config  User Alias      POWERUSER   user name Cmnd Alias SKILL    root bin sudo auth wrapper sh POWERUSER hostname  root root  NOPASSWD  SKILL   if it doesn t match  uname -a Linux other hostname 3 10 17  1 SMP Wed Oct 23 16 28 33 CDT 2013 x86 64 Intel R  Core TM  i3-4130T CPU   2 90GHz GenuineIntel GNU Linux   it will pop up this error      no tty present and no askpass program specified

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In Jenkins   echo   lt your-password gt     sudo -S command   Eg -  echo            sudo -S service nginx restart   You can use Mask Password Plugin to hide your password

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After all alternatives  I found    sudo -S  lt cmd gt       The -S  stdin  option causes sudo to read the password from the standard input instead of the terminal device    Source  Above command still needs password to be entered  To remove entering password manually  in cases like jenkins  this command works   echo  lt password gt    sudo -S  lt cmd gt

User · Answer

I was getting this error because I had limited my user to only a single executable  systemctl  and had misconfigured the visudo file   Here s what I had    jenkins ALL NOPASSWD  systemctl   However  you need to include the full path to the executable  even if it is on your path by default  for example   jenkins ALL NOPASSWD   bin systemctl   This allows my jenkins user to restart services but not have full root access

User · Answer

Try   ssh -t remotehost  sudo  lt cmd gt     This will remove the above errors

User · Answer

Running shell scripts that have contain sudo commands in them from jenkins might not run as expected  To fix this  follow along  Simple steps    On ubuntu based systems  run     sudo visudo   this will open  etc sudoers file  If your jenkins user is already in that file  then modify to look like this       jenkins ALL  ALL  NOPASSWD  ALL    save the file Relaunch your jenkins job  you shouldnt see that error message again

User · Answer

I think I can help someone with my case   First  I changed the user setting in  etc sudoers referring to above answer  But It still didn t work    myuser   ALL  ALL  NOPASSWD  ALL  mygroup  ALL  ALL ALL  ALL   In my case  myuser was in the mygroup   And I didn t need groups  So  deleted that line    Shouldn t delete that line like me  just marking the comment    myuser   ALL  ALL  NOPASSWD  ALL   It works

User · Answer

I was able to get this done but please make sure to follow the steps properly  This is for the anyone who is getting import errors   Step1  Check if files and folders have got execute permission issue  Linux user use    chmod 777 filename   Step2  Check which user has the permission to execute it   Step3  open terminal type this command   sudo visudo   add this lines to the code below  www-data ALL  ALL  NOPASSWD ALL nobody ALL  ALL  NOPASSWD  ALL   this is to grant permission to execute the script and allow it to use all the libraries  The user generally is  nobody  or  www-data    now edit your code as   echo shell exec  sudo -u the user of the file python your file name py 2 gt  amp 1      go to terminal to check if the process is running type this there     ps aux   grep python   this will output all the process running in python   Add Ons   use the below code to check the users in your system  cut -d  -f1  etc passwd   Thank You

User · Answer

sudo by default will read the password from the attached terminal  Your problem is that there is no terminal attached when it is run from the netbeans console  So you have to use an alternative way to enter the password  that is called the askpass program   The askpass program is not a particular program  but any program that can ask for a password  For example in my system x11-ssh-askpass works fine   In order to do that you have to specify what program to use  either with the environment variable SUDO ASKPASS or in the sudo conf file  see man sudo for details    You can force sudo to use the askpass program by using the option -A  By default it will use it only if there is not an attached terminal

User · Answer

Command sudo fails as it is trying to prompt on root password and there is no pseudo-tty allocated  as it s part of the script    You need to either log-in as root to run this command or set-up the following rules in your  etc sudoers   or  sudo visudo      Members of the admin group may gain root privileges   admin  ALL  ALL  NOPASSWD ALL   Then make sure that your user belongs to admin group  or wheel    Ideally  safer  it would be to limit root privileges only to specific commands which can be specified as  admin ALL  ALL  NOPASSWD  path to program

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For Ubuntu 16 04 users   There is a file you have to read with     cat  etc sudoers d README   Placing a file with mode 0440 in  etc sudoers d myuser with following content   myuser  ALL  ALL  NOPASSWD  ALL   Should fix the issue     Do not forget to    chmod 0440  etc sudoers d myuser

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If you add this line to your  etc sudoers  via visudo  it will fix this problem without having to disable entering your password and when an alias for sudo -S won t work  scripts calling sudo     Defaults visiblepw   Of course read the manual yourself to understand it  but I think for my use case of running in an LXD container via lxc exec instance --  bin bash its pretty safe since it isn t printing the password over a network

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Although this question is old  it is still relevant for my more or less up-to-date system  After enabling debug mode of sudo  Debug sudo  var log sudo debug all info in  etc sudo conf  I was pointed to  dev    dev is world writable   So you might need to check the tty file permissions  especially those of the directory where the tty pts node resides in

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Make sure the command you re sudoing is part of your PATH   If you have a single  or multi  but not ALL  command sudoers entry  you ll get the sudo  no tty present and no askpass program specified when the command is not part of your path  and the full path is not specified    You can fix it by either adding the command to your PATH or invoking it with an absolute path  i e   sudo  usr sbin ipset  Instead of  sudo ipset

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Login into your linux  Fire following commands  Be careful  as editing sudoer is a risky proposition     sudo visudo   Once vi editor opens make the following changes    Comment out Defaults    requiretty    Defaults    requiretty  Go to the end of the file and add   jenkins ALL  ALL  NOPASSWD  ALL

User · Answer

Try    Use NOPASSWD line for all commands  I mean   jenkins ALL  ALL  NOPASSWD  ALL  Put the line after all other lines in the sudoers file    That worked for me  Ubuntu 14 04

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Maybe the question is unclear that why no answer was matching it but I had the same error message when I was trying to mount sshfs which required sudo   the command is something like this    sshfs -o sftp server   usr bin sudo  usr lib openssh sftp-server  user my server tld  var www  mnt sshfs www   by adding the option -o debug  sshfs -o debug -o sftp server   usr bin sudo  usr lib openssh sftp-server  user my server tld  var www  mnt sshfs www   I had the same message of this question    sudo  no tty present and no askpass program specified   So by reading others answer I became to make a file in  etc sudoer d user on my server tld with    user ALL NOPASSWD   usr lib openssh sftp-server   and now I able to mount the drive without giving too much extra right to my user

User · Answer

This worked for me   echo  myuser ALL  ALL  NOPASSWD ALL   gt  gt   etc sudoers   where your user is  myuser   for a Docker image  that would just be   RUN echo  myuser ALL  ALL  NOPASSWD ALL   gt  gt   etc sudoers

User · Answer

Granting the user to use that command without prompting for password should resolve the problem  First open a shell console and type   sudo visudo   Then edit that file to add to the very end   username ALL   NOPASSWD   fullpath to command   fullpath to othercommand   eg  john ALL   NOPASSWD   sbin poweroff   sbin start   sbin stop   will allow user john to sudo poweroff  start and stop without being prompted for password   Look at the bottom of the screen for the keystrokes you need to use in visudo - this is not vi by the way - and exit without saving at the first sign of any problem  Health warning  corrupting this file will have serious consequences  edit with care

User · Answer

If by any chance you came here because you can t sudo inside the Ubuntu that comes with Windows10   Edit the  etc hosts file from Windows  with Notepad   it ll be located at   localappdata lxss rootfs etc  add 127 0 0 1 WINDOWS8  this will get rid of the first error that it can t find the host  To get rid of the no tty present error  always do sudo -S  lt command gt

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Other options  not based on NOPASSWD    Start Netbeans with root privilege   sudo netbeans  or similar  which will presumably fork the build process with root and thus sudo will automatically succeed  Make the operations you need to do suexec -- make them owned by root  and set mode to 4755   This will of course let any user on the machine run them   That way  they don t need sudo at all  Creating virtual hard disk files with bootsectors shouldn t need sudo at all  Files are just files  and bootsectors are just data  Even the virtual machine shouldn t necessarily need root  unless you do advanced device forwarding

User · Answer

Try this one   echo      sudo -S my command

User · Answer

This error may also arise when you are trying to run a terminal command  that requires root password  from some non-shell script  eg sudo ls  in backticks  from a Ruby program  In this case  you can use Expect utility  http   en wikipedia org wiki Expect  or its alternatives   For example  in Ruby to execute sudo ls without getting sudo  no tty present and no askpass program specified  you can run this   require  ruby expect   exp   RubyExpect  Expect spawn  sudo ls    debug   gt  true  exp procedure do     each do         expect   sudo  password for  your username    do             send  your password          end     end end    this uses one of the alternatives to Expect TCL extension  ruby expect gem

User · Answer

Using pipeline   echo your pswd   sudo -S your cmd   Using here-document   sudo -S cmd  lt  lt eof pwd eof  remember to put the above two lines without  any  indentations    Open a terminal to ask password  whichever works    gnome-terminal -e  sudo cmd    xterm -e  sudo cmd

[linux] How to fix 'sudo: no tty present and no askpass program specified' error?

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