how to login as a root in the terminal .
it is saying : su - incorrect password.
I have change the #chmod 755/bin/su
Now i cant login as a root from command line , though root password works from GNOME
I have tried to not allow root access and have created a wheel user.
Now I can not logged in as root.
Its okay but when am logging as wheel user and trying to access root then it says:
Code:
One of my servers is displaying the error as login incorrect even after giving the correct password. Once I restarted the Virtual Machine and after that it is accepting the same password to login. I am not able to find out the problem, why the server is not able to validate the password until the virtual machine gets rebooted.
View 2 Replies View Relatedwant to run VirtualBox with root permissions. Trouble is that only when run as root i can access attached USB devices inside of a virtual machine, otherwise, these a greyed out).Now running VirtualBox as a root user also changes the configuration folders, making all my virtual machines already defined disappear. I also don't want to copy all to the root configuration folders. Is there a way to give the VirtualBox root permissions but without actually running the application as a root user. Is it possible to do without changing the permissions of the non-root user, i.e. i don't want my user to have all root permissions, due to security considerations.
View 1 Replies View RelatedI've inherited a linux box, redhat I believe.
Code:
Linux tmif3 2.6.9-5.ELsmp #1 SMP Wed Jan 5 19:29:47 EST 2005 x86_64 x86_64 x86_64 GNU/Linux I added a user useradd billy because I don't like being root. I changed the password using passwd billy all as normal. when I try to logon, ssh rsh I cannot. even as root with an su - yields the following..
[Code]...
I found this on Bee's website. For more info on this exploit there are links there:[URl]..All you have to do in Fedora 13 is enter the following lines in a shell as normal user:
[Code]...
I don't think this can be considered solely an "upstream" problem, because I first tried it in Arch using the same version of glibc, and the final command causes both gnome-terminal and xterm windows to disappear.
Just like the title says, if I were to try to run anything through gksu and accidentally put in an incorrect password, instead of the gksu window coming up again, it would just terminate.
Code:
theyain@theyain-laptop:~$ gksu update-manager
GNOME_SUDO_PASSGNOME_SUDO_PASSSorry, try again.
sudo: 3 incorrect password attempts
Whats interesting is that it gives me the sudo error after only one incorrect password attempt.
what does one do when he forgets the root password ? i still have a terminal logged in as root how can i change the password in terminall
View 2 Replies View RelatedI have been experiencing harassment with my websites being hacked so pardon me if this is an over-paranoid question.
Just recently started on FC11 after having abandoned Fedora for CentOS for a few months. So glad to be back, but...
I have been getting notices about security updates. When I click for the update, I am not asked for the root password and the update occurs.
It seem like unix abit annoying every time you log in you need to password can I disable it
View 10 Replies View RelatedCan't seem to do it, wondering if anyone knows how? Normally there's something in sshd_config that can be switched to true or yes to allow root login but I can't see it in fedora 12.I can login via root at a terminal no problem, just not via ssh, I get access denied every time. Also, I need to login using password authentication.I've done: 227169 but that's just for GUI which I don't really need since I rarely ever log into the GUI.I have also searched through here and mostly only found info such as above, how to enable root login for GUI, or billions of posts about how logingin as root is bad but I cannotswer to my question.DISCLAIMER: Please do not reply to this thread if all you can contribute is the question of why I need root or to put some message telling me I can do everything using su, etc, etc. Please only contribute if you can answer my question. A: My machine and a valid quesiton. B: Spirit of Linux is open, not restrictive
View 3 Replies View RelatedI have recently installed Fedora 14 on a new computer we presented as a gift to my sister-in-law. She is new to Linux. Although I've used Fedora since Core 1, I'm no expert on security issues, and this baffles me. She's doesn't know how to change the root password, so why doesn't it work any more? She discovered the problem when attempting a yum update from a terminal.(1) How could the root password have gotten changed? How likely is it that someone got onto her system through ssh, made a lucky guess on her root password, and then changed it? Are there robots that do this?
(2) The firewall is enabled. I have it set up as follows: (a) under "Trusted Services," only ssh is checked (I need to be able to get in remotely this way); (b) under "Trusted Interfaces," I have eth0 checked (I need to be able to use VNConto her desktop).Question: Are these settings giving ample protection? What settings would be recommended to protect her system while at the same time allowing me to access it through ssh and VNC?
Being able to reset the root password by booting into single usermode by editing grub. This is a MAJOR flaw. I know it makes no real difference against internet bourne attacks, but even so I must say I found it shocking. The only way I've found to stop this is to encrypt the entire HDD, so noone could get into single user mode without first knowing the encryption key/password.
View 14 Replies View RelatedI have a document, saved in MS Word, which comes to a total of 688 pages (A4). The same document opened in OOO writer 3.2 in Windows shows the same number of pages but when I open it in OOO writer 3.2 on xubuntu it gives me 793 pages. I checked all the page size settings I could find in OOO and everything is set to A4 as far as I can see.
Any obvious thing I could be overlooking?
I don't know how I've managed to mess this one up, but in the midst of securing my webserver (ie. changing default SSH port, add new user, disable root SSH) I seem to have broken su functionality....somehow.
When I ssh as my user "lockdown" I attempt to "su -" and immediately am prompted with "su: incorrect password"
Code: lockdown[ at ]bag [~]# su
su: incorrect password
lockdown[ at ]bag [~]#
I re-enabled root SSH login (via editing /etc/ssh/sshd_config) and I'm able to SSH as root no problem, however I can't su even from root to another user, getting the same behavior and error message..
Code: root[ at ]bag [~]# su lockdown
su: incorrect password
root[ at ]bag [~]# Here are my permissions for /bin/su ...
Code: root[ at ]bag [/]# ls -l /bin/su
-rwSr-xr-- 1 root wheel 28336 Feb 28 2010 /bin/su* My user "lockdown" is a member of the wheel group, and I haven't edit /etc/pam.d/su or system-auth at all.
I've been using checkgmail package on my f10 (x86_64) box for a while now without problems. But all of a sudden, I see a pop-up windowtating: incorrect username or password. No matter how many times I enter my usernamend password the window keeps coming back demanding for the same. My system is up to date and I've rebooted my system a few times, but the problem persists.
View 2 Replies View Relatedtoday i got this message everytime i try to login to yahoo messenger:"gyachi invalid user or incorrect password !" The user and password are corect, if i switch to kopete or pidgin is all right.Only with gyachi i have that problem. Using Fedora 10, gyachi improved v1.2.3
View 3 Replies View RelatedI'm using Fedora 12 KDE, and I'm trying to connect a Lexmark printer. It's a printer that I can connect to in other KDE distros. When I try to connect to it through the system settings printer manager I get a popup window that says, "Password may be incorrect", and then it goes to the new printer window. However, there is no option for a lexmark printer, lpd, ipp, or anything in the left menu bar. There's only an option for other, and a little box that asks for the uri. Am I missing a package, or is this normal behavior? Do I have to somehow open this up in sudo? Am I missing a package? I have cups, foomatic, and ghostscript installed.
View 1 Replies View RelatedProtect against root password change[Log in to get rid of this advertisement]I have recently had to force a change of the root password on a linux box I was running. It was a test system which I had not used in a while, so I forgot the root password (not so smart).Anyway, I found that it was amazingly easy to reset the root password. Here is a straight forward article on how to do it.URL...
My question is: how can you protect against this? I see this as a security hole.I understand that the user must have physical access to the computer, but if I want to lock the system down so you cannot easily enter single user mode or the root password cannot be changed.
We have a couple of clusters that are running Oracle. If you're familiar with Oracle you know that it basically has to be installed as root. Something I detest. anyway, when we are building out the box, we change the root pw and give it to the DBA team to do their installs and configs. When they are done, we change the root pw (and do not give it to them), and configure sudo to allow them the rights needed to manage Oracle and their databases.
Now however, we have a different situation. The DBAs need access to uninstall and reinstall components and make modifications on an ongoing basis. Since we only support OS and hardware, not app, they are requesting permanent root access. I promptly told them no, and the politics ensued. Their manager went to their director, who went to my director, and suddenly an exception is given for his good golfing buddy. So here I am, forced to turn lose DBAs on my clusters with full root access/pw. I need a way to allow specific users (or perhaps a specific user group) the ability to become root WITHOUT sharing the root pw with them.
I can log into the user directly, ssh, but can't su to anyone
My problems: When i try to so su to any of the user I get this message
Also when screen saver is lock it won't accept my password as well
Example:
Steps and other way I have try to get this problem fix but fail
1] boot up a working version machine and look at
2] check the permission and the sticky bit on /bin/su file
3] went and copy the entire /bin; /usr/bin ; and /etc/pam.d from a working system over the the failed system and it also doesn't help
In the freshly installed Fedora 12, I installed java and maven and added following files into /etc/profile.d folder:
java.sh
Code:
export JAVA_HOME=/opt/jdk1.6
export PATH=$JAVA_HOME/bin:$PATH
maven.sh
Code:
export MAVEN_HOME=/opt/maven
export PATH=$MAVEN_HOME/bin:$PATH
Now when I try to login to "root" account giving "su" command , it gives me the error :
bash: /root: is a directory
Found a major security hole in one of my more crucial linux servers today. (Only locally) I can use the user name "root" and any string for the password. So I can literally type "poop" as the password and the server lets me in. I know how to set root password settings for SSH and sudo, but where are settings located for local access that would allow something like this?
View 14 Replies View RelatedStumped on this one. I'm trying to set up limited sudo authority on a desktop with some sensitive user data, and as an extra precaution I wanted to configure sudo to use a password other than the user's or the root's. I'm not sure how to do this. From the manual, we have a few options, such as "runaspw" or "targetpw", but none seem quite what I'm looking for.For instance, "runaspw" could be used if I created a user for nothing other than sudo(ing) purposes, but it requires you set "runas_default", which means that said user would have to have authority to execute said commands in the first place. This is workable, but seems like a lot of extra configuration for each specific command that I want to run, as well as creating some issues with simply commands such as "shutdown" or "reboot". Also, "targetpw" can be used in conjunction with a sudo(ing)-only user if I set an alias, but, again, this isn't quite what I am looking for.
Ultimately, what I am really concerned about in this situation are keystroke loggers, so I would prefer to avoid repeated entering the user or root password when performing administrative tasks. Also, I would prefer not having to create a sudo(ing)-only user as mentioned above to prevent a comprimised password resulting in an attacker being able to log into my system.
I've moved my /var/log directory to another disk (/mnt/serverlogs) and created a symlink for the original directory:
Code:
[root@fileserver2 var]# ls -aldZ /var/log
lrwxrwxrwx. root root unconfined_u:object_r:var_t:s0 /var/log -> /data/serverlogs
[root@fileserver2 var]# ls -aldZ /data/serverlogs
drwxr-xr-x. root root system_u:object_r:var_log_t /data/serverlogs
I have SELinux set to permissive and am getting lots of errors because the contexts are incorrect after a filesystem relabel. e.g.
Code:
[root@fileserver2 var]# ls -alZ /data/serverlogs/messages
-rw-------. root root system_u:object_r:default_t:s0 /data/serverlogs/messages
I believe that this file should be var_log_t.How can I restore the correct context to all of the files in /var/log?I've tried running:
Code:
restorecon -vR /var/log/
But this does not change the contexts, I guess because the files are now in the 'incorrect' location. I've looked through the file: /etc/selinux/targeted/contexts/files/file_contexts which I believe contains the original/default settings - maybe I need to alter this file to fix the problem? I've also tried modifying /data/serverlogs using:
Code:
semanage fcontext -a -t var_log_t /data/serverlogs
which fixes the directory itself, but not the contents,
I've been using Ubuntu for like a year now. Whenever I want root privileges I just type sudo and enter my User password. I wanna know if there's a way to change this, in a way that My User password is: "ABC" and the password needed to have root privileges is: "ABC123". I have no problem using the terminal, I actually prefer it to any GUI, it just seems easier to me.
View 3 Replies View RelatedTo comply with standards I need to change the root pw every so often. However, I really don't have a need to know the root password; as the only thing using root, is for ssh authenticating via ssh keys. What I want to do is automate the root password change monthly via a cron job, to a random value. Is there a way to do this without knowing the previous password?
View 14 Replies View RelatedI try to install my printer again after reinstall ubuntu 9.04. ("downgraded from 9.10"). Instead of asking for the local-user-login password, as it does for other system changes, it asks for a root password that I never had. What happened? How can I set this right?I made a printscreen.
View 3 Replies View RelatedI have ubuntu 11.04 installed along side windows. And I often share files with windows computers. If I am installing a new package from ubuntu software center, and consquently I have to log in as root to do so, which means I have given the system 'privileges' as the program is being installed, I decide to go open mozilla, and surf suspicious sites on the net. Is it possible in that case for me to get a virus?
When we enter the password for the root user in order to run one program such as ubuntu software center, does that mean that all programs have root privileges for the time being (as the software center is installing the program)?
I have a problem with sshd daemon on a target linux system:The system has only one user (root) without password.The sshd_config looks like:
Code:
Port 22
Protocol 2
[code]...