I have lost my password for my root and for my user account.
Code: Select alluser@debian:~$ su Password: su: Authentication failure user@debian:~$ su Password: su: Authentication failure user@debian:~$ su
I have just installed a gust debian 8 on debian 8 host in virtualbox, and when i wonted too login as su/root on the host there where no login possible, is there a way to regain the root password for the host?
I want to know how to change a password to an user account. Can someone give me the syntax on how to do this? I was using usermod but it's not working (usermod -p 123456 user1). Is there other way beside usermod? I am using RHEL5.
Is there a non-root shell command that can tell me if a user's account is disabled or not? note that there is a fine distinction between LOCKING and DISABLED:
LOCKING is where you prepend ! or * or !! to the password field of the /etc/passwd file. On Linux systems that shadow the passwords, this marker flag may be placed in /etc/shadow instead of /etc/passwd. Password locking can be done (at a shell prompt) via password -l username (as root) to lock the account of username, and the use of the option -u will unlock it.
DISABLING an account is done by setting the expiration time of the user account to some point in the past. This can be done with chage -E 0 username, which sets the expiration date to 0 days after the Unix epoch. Setting it to -1 will disable the use of the expiration date.
The effect of locking to to prevent the login process from using a supplied password to hash correctly against the saved hash (by virtue of the fact that the pre-pended marker character(s) are not valid output character(s) for the hash, thus no possible input can ever be used to generate a hash that would match it). The effect of disabling is to prevent any process from using an account because the expiration date of the account has already passed.For my situation, the use of locking is not sufficient because a user might still be able to login, e.g. using ssh authentication tokens, and processes under that user can still spawn other processes. Thus, we have accounts that are enabled or disabled, not just locked. We already know how to disable and enable the account - it requires root access and the use of chage, as shown above.To repeat my question: is there a shell command which can be run without root privileges which can output the status of this account expiration info for a given user? this is intended for use on a Red Hat Enterprise 5.4 system.The output is being returned to a java process which can then parse the output as needed, or make use of the return code.
I remember my password very well and have no need of password recovery. Everywhere I look it's how to recover and I don't want that. The kind where you boot into root recovery console to change the password.
I have configured httpd web server to allow each of the system users to have their own web page (using UserDir directive).At the same time I have configured ftp server to allow the users to upload their html files to the web server.With above set up my users need not have any knowledge of linux; they can work from any windows PC on the network.There is no problem in the above.However, now I need to allow my users to change their passwords. The point here to note is that the users should be able to do this even from windows PC on the network. One of the way is to configure a telnet server (or sshd). But I find that the windows PC does not have telnet client.The other idea is that I should put a php script on the server which would take user name and password from the web page and then change the password. I don't know how can the system account password be changed through script - I will have to check this out.
I setup openldap and samba on 9.10. The ubuntu desktop client gets authenticated successfully with the server. But when I do a passwd on the client, only the ldap passwd is getting changed but not in the samba and the unix user account.
passdb backend = ldapsam:ldap://192.168.3.100 ldap suffix = dc=example,dc=local ldap user suffix = ou=People ldap group suffix = ou=Groups
But only the ldap password is getting changed and not in the samba and unix user account.
I have a Windows domain with a proxy. I have an account that can use the proxy and the URL that points to the proxy.pac file. this might seem a stupid question but can anyone tell me how do I enter the username and password for my test Windows account so that Debian can authenticate it?
I first started using Ubuntu and I liked the sudo facility because I didn't need to remember two passwords, so when I installed Debian I wrote the same password for the limited and the root account. Is this very bad for security? I mean can a program started from my regular account immediately become root or something?
I have a win XP box and want to share files on this win XP box In Ubuntu 10.10 I previous used, I just connect the win XP sahred folder via file browser without any username and password. In my Debian Squeeze, when I connect to my win XPIt poped up a window and asked me the username and password. But I don't set any password in my win XP even my administrator account. How can I do to make my connecting to win XP smoothly like the Ubuntu does?
How can I implement this: I encrypt a partition using LUKS, and store personal data on this partition. Then create a user account that solely deals with this partition and insulated from the Internet. Normally for each boot I do not even need to mount the LUKS encrypted partition, and when I mount that partition under that special user account, I can make sure that the Internet is cut off.
I'm going to do the installation these days, could you provide a brief sketch regarding what steps I should go through to implement the above result?
I set up a debian lenny in vmware on my windows machine. The network interface is set to bridged, so the virtual machine is connected directly to the university network i am connected to. I want to be able to ssh into the vm.I installed sshd via "apt-get install ssh", generated a key pair with puttygen and copied the public part to "/home/user/.ssh/authorized_keys", set rights to 600 and then tried to disable password authentication completely, following the "securing debian" documentation.this is how my /etc/ssh/sshd_config looks now:
# Package generated configuration file # See the sshd(8) manpage for details # What ports, IPs and protocols we listen for
I have a problem with the Google search box top right corner in Konqueror, when entering search I recieve an error page "Unsupported Protocol" Google asks for ioslave or kioslave. Also when highlighting text on a page and right clicking with the mouse no search option is given. I created a new user and all works as it should for the new user. What is wrong with my user account? I have reset default values in Konqueror setup.
I want to refuse access for some users to usb pen and audio. In previous releases (debian, ubuntu , debian-based ..) , it is enough to remove the user from the group.
that is in /etc/group audio:x:29:bela plugdev:x:46:bela,geol
with theses lines : bela can heard sound, but not geol, for bela and geol the usb pen is automatically mounted. But not for nobody else. It is NOT the case in the new release, I mean, even if I remove a user from the plugdev group, the usb pen is automatically mounted for that user.
Apache is run as www as is all the files/folders. People are uploading via FTP, scp, so the problem is if I chmod so everyone can read, then rsync as a user it works until new files are added which then my ; if rsync fails with a permission denied. Now I can add a chmod in the script so everyone can read, but since www can already read, I figured I would just change my script to use www. I added the ssh key to his authorized_keys file, but when I try to just ssh in I see this in the secure file;
server sshd: User www not allowed because account is locked sshd: Failed none for invalid user www from ip port 54983 ssh2
Now I read a few places already saying I need to add a password to the account, etc. but before I jump and try all I read, 1st major one, will this now break apache? Will this affect any startup things, etc. and .... will that unlock that user for ssh in or is there another preferred method?
I have forgotten my user password....HOWEVER I remembered the root password and am able, (after much fumbling about)to get into the machine. Is there a way of resetting my password? It obviously will not let me do so on the password-reset-screen as it requires the old password....
I have a user account which is required to run as part of the operating system and as a service. I am currently attempting to install my companies software on an Ubuntu desktop via wine just for the purpose of finding out if it's do-able.
Is there a way, in Ubuntu, for a user account to be given the local rights assignment to act as part of the operating system and to function as a service in the background?