Ubuntu Security :: Ubuntu Sudo Versus Windows 7 User Account Control
Jan 6, 2010Is windows 7 UAC basically a user/system control system like sudo?
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Ubuntu Security :: Unable To Deny Sudo Access To Regular User Account.
Dec 19, 2010I made a Desktop User account. When I went on that account, it allowed me to execute sudo as if I was an administrator. I don't know what might be causing this. I do have ufw set up and blocking incoming connections. Do you guys know what might be at the root of this?Also, when I used sudo from the user account (which I shouldn't have been able to do), I provided the password for my admin account.
View 9 Replies View RelatedUbuntu Security :: Sudo Versus SU And Superuser Privileges
Jul 19, 2011So, I'm not quite sure what the difference is? Is it that sudo allows you to "borrow" superuser privileges, whilst su allows you to actually log in as superuser? Also, when I sudo [command] and get prompted for a password, after I input it, things work just fine, but if I su, and then get prompted for a password, I can't log in as superuser... Why is this?
View 9 Replies View RelatedUbuntu :: User Account Control And User Rights Assignment?
Sep 29, 2010I 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?
Ubuntu :: Accidentally Changed CHGRP On User Account / Now Can't Sudo
Mar 10, 2010I was recently messing around learning chgrp commands, and set my (only) user account to a different group. Now whenever I try to sudo a command, I get 'john is not in the sudoers file. This incident will be reported' message.I *seem* to have a root account (one is listed in System->admin->users and groups), but I'm almost certain that the password for it would be one of 3 things, and it's none of them.
View 2 Replies View RelatedServer :: User Control Panel For Email Account
Nov 12, 2009I've a mail server(Postfix) running on Slackware linux 12.1 . I need to configure a control panel so that one can create/delete/modify an email account as well as manage email alias.
View 1 Replies View RelatedGeneral :: Security Versus Windows Security
Sep 10, 2009As Linux gains in popularity, (as I believe it will), do you think that Linux will ever become the target of as many virus and worm threats as Windows has faced? If so, do you think that the threats will have much success?
View 2 Replies View RelatedUbuntu Security :: Set Two Password For 1 User Account?
Dec 27, 2010i use ubuntu 10.04, is there a way to set two passwords for 1 user account
View 2 Replies View RelatedUbuntu Security :: Unknown User Account 'dtc'?
Mar 12, 2011I started up my computer and suddenly, I saw that there was a new user account. I didn't create it and no one else uses my computer (let alone has access to user account creations). It was called dtc. It didn't seem to have any privileges and the only file in its home folder was called Examples. Should I worry that I might have some kind of malware? I deleted the user and the folder (and it came back after a while). It's main group is dtcgrp. The User ID is 1004.
View 2 Replies View RelatedUbuntu Security :: Running Wine Under A Different User Account?
Jan 2, 2010I've written an article on my site which lays out steps for installing Wine and running it under its own, separate user account, so that Windows applications cannot access personal files (particularly those in your home directory).[URL}..i'm hoping that there are people on this forum who know Ubuntu inside-out, as I'd like to know how effective the described method is at trapping Windows applications so that they cannot read or write personal files or directories.
The way I understand it, once the process is running under user account wine, it's stuck with the access privileges of user wine. But are there ways in which a rogue application could break out of this prison and gain access to whatever it wishes? I'm guessing that such behaviour would mean someone customising Windows software to recognise Linux, and that such a thing is very unlikely, but I'm still interested to hear what gurus of the Ubuntu internals think of this method.
Ubuntu Security :: Turn Off The Password Recovery For User Account?
Nov 12, 2010I 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.
View 4 Replies View RelatedSecurity :: More Than One Person Is Sharing A User Account?
Dec 6, 2010Is there software or mechanism that can help the administrator determine if more than one person is using the same user account via a shared password?
View 8 Replies View RelatedSecurity :: Unlock Test User Account?
Aug 18, 2010I ran a test where I login a test user several times using the wrong password to see that he gets locked out after several attempts. Now that I got the test user locked out, how do I unlock the test user? I tried passwd -u <test user>, but it says passwd: Error (password not set?).
View 4 Replies View RelatedUbuntu Security :: Set Automatically Log In To A Specific User Account And At The Same Time Lock The Screen?
Jul 6, 2011Is there a way to set Linux to automatically log in to a specific user account and at the same time lock the screen? I want to save time and trigger various software that always should start up on boot, while leaving the computer unattended during startup (extra important and practical for remote control boots), by enforcing a 'screen lock' so that no-one can see what happens behind the login screen without entering the login credentials.
View 3 Replies View RelatedSecurity :: Sudo Access For An User To A Script?
Jan 18, 2011I am trying to get a non-root account on one of our servers to run a script with sudo capability. To that end, I went into the /etc/sudoers file, and added the following syntax:
Code:
## Enable the nagios user to run the check_iptables.sh script as root
nagios ALL=NOPASSWD: /usr/local/nrpe/libexec/check_iptables.sh, /sbin/iptables
I restarted the nagios service, and tested the results. The results were the user account still could not run the script due to the user, nagios, not having permission to run the iptables binary.
Is there another step(s) that I need to take in order to get the sudo access available to the user account?
Security :: Sudo Non-user/non-root Password?
Feb 19, 2010Stumped 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.
Fedora Security :: Administrative Login In User Account?
Sep 25, 2009I am a new Linux user and have a question about the administrative authentication. When I am logged in as a user and I need to do something that requires root privileges the little password window comes up and I enter the root password. My question is how long are the root privileges granted for?I noticed that a few minutes after finishing checking out the firewall configuration tool and closing the window that I was still able to re-enter the fire wall tool and other administrative tools. How do I log out of the root privileges without logging out and then back into my account?
View 2 Replies View RelatedSecurity :: Disable Account Lockout For A Specific User?
Oct 5, 2010I am using Red Hat LDAP (version 3) and I have passwordLockout set as "on" at global level. Is there a way to disable account lockout for a specific user?
View 1 Replies View RelatedSecurity :: Create Fully Isolated User Account?
May 16, 2010I need to create such an account that the user wouldn't be able to r/w any file which doesn't belong to it, even if access mode is set to o+rw. I guess normal chmod/chown won't help here... How can i do this?
View 2 Replies View RelatedUbuntu Security :: Scripts Or Applications Cannot Install Without The 'sudo' Prompt And User Input?
Feb 12, 2010Would it be safe to say that if I build a restricted user: "Desktop" or "unprivileged" user I will be ok? From what I understand - most scripts or applications cannot install without the 'sudo' prompt and user input.
View 8 Replies View RelatedSecurity :: Ubuntu 10.10 Is Not Allowing Amin Privileges To Admin User, Even Tho Sudo Works?
Feb 21, 2011i am relatively new to ubuntu. Just recenty i have not been able to access certain files(for example the history and bookmarks in the firefox folder), download files individually from the internet(music,fonts,etc), recieving an error message
Quote: Originally Posted by firefox error console
Error: [Exception... "Component returned failure code: 0x80520015 (NS_ERROR_FILE_ACCESS_DENIED) [nsIFileOutputStream.init]" nsresult: "0x80520015 (NS_ERROR_FILE_ACCESS_DENIED)" location: "JS frame :: file:///usr/lib/firefox-3.6.13/components/nsSessionStore.js :: sss_writeFile :: line 2944" data: no][code]...
i have sudo priveleges and can install via update manager. i read somewhere that compizfusion might affect access permissions and i do use compiz and emerald at the same time.
Software :: Pam_start Error 26 \ Use Sudo Su And Add An Account To A Group What's Allowed To Use Sudo?
Jan 2, 2011I have a problem when I want to use su I get this error:Code:su: pam_start: error 26I have googled it so I found this topic (http://www.linuxquestions.org/questi...r-26-a-615024/) but it didn't really help me. There was a reply on that topic and his question was what the output of this was:
Code:
ldd /usr/bin/passwd
and
[code]....
Ubuntu Security :: Desire - Create A Bash Script That Launches Skype Under A Separate User Account?
Mar 13, 2010I want to jail Skype into its own process and not the one I login with. That way, if a hacker breaks in, it's limited to this process and only the limited functionality that that user account has. The thing is this -- thousands of Linux guys run Skype, but Skype is hardly ever updated or have security patches, and we run it all the time. It seems like an easy avenue for an exploit. As well, my iptables firew all blocks input connections that I have not established, but Skype is an established connection. How do I create a Bash script that launches Skype under a separate user account?
View 3 Replies View RelatedUbuntu Security :: Multiple Passwords \ Possible To Have Two Passwords For One User Account In 9.10?
Jan 7, 2010I wonder if it is possible to have two passwords for one user account in 9.10. I have a long login password (5 words about 45 characters with spaces caps). I would like to set a shorter password for Authentication, sudo, etc. While retaining the original for logging in.In short:Have long password to login to computer.Have short password for everything after login.
View 6 Replies View RelatedGeneral :: Sudo Versus SU - SAX2 Command?
Jun 3, 2010I've been using SuSE for a while and something has been bugging me. Not a show stopper, but nevertheless, an interesting one. Most tutorials, forum posts, etc. recommend using a sudo command to accomplish stuff. For example:
Code:
sudo make install
sudo vi file
However, this does not always work. For instance, I was recently working on a resolution problem with my ViewSonic VX922 - it would only display at 1024x768 rather than the native 1280x1024. Viewing some posts, I found the command "sudo sax2 -r". What I discovered is that there seems to be a big difference between sudo and su
Code:
drkhelmt@SPACEBALL1:">sudo sax2
root's password:
sudo: sax2: command not found
drkhelmt@SPACEBALL1:">su
Password:
SPACEBALL1:/home/drkhelmt: #sax2
SaX: Checking update status for intel driver
SaX: initialization already done
SaX: cal [ sax2 -r ] if your system has been changed !
SaX: startup
SaX: X server:0.0-> grant
SaX: importing current configuration
SPACEBALL1:/home/drkhelmt: #
So the question, why does the command sax2 (and others) work when after the su command rather than a sudo?
Fedora Security :: Cannot Open /var/db/sudo After Sudo Package Upgrade?
Sep 16, 2010A day ago I finally got around to upgrading the PackageKit installation that had been sitting for a week and a half, so I found a new upgrade for sudo available - the one that gives the sudoreplay command, I forget which version number it is exactly. When I try to use the sudo command I get this notice in my terminal:Code:Can't open /var/db/sudo/me/1: Permission deniedI didn't get it before. What do I have to do to make it open? I'm using SELinux in enforcing mode if that helps.
View 1 Replies View RelatedOpenSUSE :: 11.4 Konqueror User Account Bug New Account No Bug
Jul 16, 2011I 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.
View 3 Replies View RelatedUbuntu :: Access User Account 1 Home Directory From User 2 Work Space?
Jun 16, 2011Do you think there is a way of accessing different user data from another account which I have set up.
Ie. user 1 = account has messed up
user 2 = account works fine
access user account 1 home directory from user 2 work space?
Ubuntu :: No SUDO Access When Admin User Created Through Kubuntu User Manager?
Jan 6, 2010Original HOWTO can be found at: [URL]... So the other day I was in IRC and someone had brought up a problem where they created a new Administrative user, but didnt have rights to use sudo. Looked into the problem a little bit to figure out what was wrong, and it turns out that when you create a new user through the user manager (in kubuntu, anyways. Havent tested in Gnome.) the user gets added to the adm group, however, a quick look at the sudoers file shows that its looking for users in the admin group to allow the use of sudo. So, to solve the problem we do the following: If youre on the new admin user (which Im assuming you are) use the following commands:
Code:
su [insert username of old account without brackets]
sudo usermod -G admin [username of new admin account without brackets]
exit
Then simply logout, and then log back in (not always necessary, but the easiest way to flush the permissions.)
Code:
su [insert username of old account without brackets]
Means were going to Switch User to the old admin account
Code:
sudo usermod -G admin [username of new admin account without brackets]
This simply adds the admin group to the secondary group list for the new user
Code:
exit
Pretty self explanatory
Ubuntu Security :: Set Permissions Like Windows - User Can Delete Files But Can't Modify
Jul 16, 2011look at this : Uploaded with ImageShack.us how can set permissions in linux like this? I want one user can delete files but can't modify them and ... in linux i have 3 group to assign read write and execute them. is ntfs flexible than linux file system?
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