i want to disable the su command on a server so that users cant run the su command i removed the comment from the 3 and 5 line in /etc/pam.d/su file but it doesnt seem to work the file is shown below
#%PAM-1.0
auth sufficient pam_rootok.so
# Uncomment the following line to implicitly trust users in the "wheel" group.
[code]....
Im not getting able to neither add new users using command useradd nor delete existing users using command userdel. And even Im not getting able to login into any existing users except root. It was ok before. Im having this problem very recently on my linux server. Im using RHEL5.
View 9 Replies View RelatedI need to find out a command to enable and disable a secondary monitor using the Nvidia X Server. I've got a monitor attached to my laptop that I don't use all the time and would like to just have a launcher to switch between "twinview" and "disabled" quickly rather than having to go through the menus. It's physical position is vertically above the primary monitor so I have to put in a custom position every time I enable it.
View 8 Replies View RelatedI want to know the command which will list the local users created by me not system users.
View 6 Replies View RelatedI am new in Linux.Problem is that how to add a more then one users in a one command and also add a password to them?
View 2 Replies View RelatedI am using ubuntu 9.04. I created new users, & users logged in with their name & password. Everything is working fine. But when they open gui terminal or when they login using CLI(using ctrl+alt+f1), they will get only "$" symbol, instead of full path like pwd, hostname, etc. And if I do ls, it is listing the content, but command completion is not happening, i.e $cd Des(pressing tab). These all things can be fixed only after pressing "bash". So I don't always want to press "bash". So is there any way that I can fix this issue.
View 6 Replies View RelatedAllow me to submit that i did a mistake of not saving the work which i done in the past few months. i have used history command to see the previous commands. But trouble is that since i had worked a lot on gnome-terminal, only last 1000 commands are shown. Is it possible to see list of all the previous commands for all users. Also, sorry if this sounds absurd, but is it possible to save the details of a session onto a single file ? I not sure but when i had worked on vector Linux, i had used some command to save sessions at the terminal. Is there any analogous command in Ubuntu 10.04 also ?
View 2 Replies View RelatedFrom Linux client end I can easily telnet to a remote Linux server easily , Like :
[root@apps1 ~]# telnet 192.168.1.14
Trying 192.168.1.14...
Connected to 192.168.1.14 (192.168.1.14).
Escape character is '^]'.
catalog.aibl.com (Linux release 2.6.18-8.el5 #1 SMP Tue Jun 5 23:25:19 EDT 2007) (1)
login:
But I want to disable the "telnet" command from the client end , so that I cannot telnet to a remote linux server from the Linux client end
Bios is a good recommendation but will that affect the fan speed? I know about the acpi=off option, this does not work properly- even on suse. Maybe noapic would work better? Really is there a cover all command line instruction (for all distros) to turn the annoying thing off? Main problem occurs when watching the telly and the screensaver kicks in, with suze it turns the sound off as well, even after you have re-entered the password
View 1 Replies View RelatedI have install RHEL5 and created normal user as "test". When I login as root user, I can run crontab command but when I login as test user, I can't run crontab command and throws error as "cron/test: Permission denied". how to enable crontab command for test user as well?
View 3 Replies View RelatedI need to figure out a bash command to list all users logged in at or after 5pm - 5pm being the specifier in the command.
Code:
Command seems to be the easiest way to display users but it specifies all users log times.
I've also fiddled with the lastlog command to no avail.
Can someone please tell me how I can use grep to display all users running a particular command.
View 3 Replies View RelatedWhat is the best way to prevent some user run some command? For example every body can run at and batch command and 3 or 4 special users prevent run these command?
View 7 Replies View RelatedRecently, when we updated our OS, we got a new tcsh feature enabled by default. Whenever I type a command that tcsh doesn't recognize, I get an annoying spelling correction like:
% cats
CORRECT>cast (y|n|e|a)?
I want to disable this feature and allow misspellings to error out like:
% cats
cats: Command not found.
Is my enter key somehow getting re-bound? What could be causing this?
I am using Fedora 14. By default Security Enhanced Linux is enabled in Fedora 14. Now is there any way to disable it by command line and then again enable it through command line.
View 3 Replies View RelatedI've used the following script here: [URL] to upgrade Alsa to 1.0.21 in Ubuntu 8.04. Now whenever I run:
Code:
sudo shutdown -h <time> or sudo reboot from the terminal I get a rather annoying beep sound. What's even more annoying is if I use the shutdown command to specify a time I get a beep every 10 minutes or so.
I've tried disabling the terminal beep in the terminal profile, disabling the beep in System/Preferences/Sound, adding "blacklist pcspkr" to /etc/modprobe.d/blacklist, and running gconf-editor from the terminal and setting /desktop/gnome/peripherals/keyboard/bell_mode to 'off' rather than 'on'.
I am trying to setup a system to allow normal users to execute a command without using sudo. Is this possible?
View 6 Replies View RelatedIs 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 know my way around MS Windows much better, but I just don't feel right trying to program something for Android on a Microsoft operating system. I am interested in Android programming so I followed the instructions on [URL] to install the environment on my computer...
I just installed the JDK, SDK, Eclipse successfully (or I assume):
* When I get to Step 4 where I'm supposed to run 'android' it will not run. I get the error message "android: command not found" (I am definitely in the right directory).
** When I double-click it in nautilus, it opens up in gedit. I can set the permissions in nautilus (through the properties - Allow executing file as a program) and get it to work,
My system:
Intel i7
Ubuntu 10.10 Maverick Meerkat
android-sdk-linux-x86
eclipse 3.6.2
I am using openSUSE 10.3.When I install software from tarball then to record time required I send output of date to beg.txt(when installation begins) and end.txt (when installation finishes).How can I append output of date to a file so I don't need two files?
View 4 Replies View RelatedI installed the Berkeley DB on the Ubuntu server and tried to access the dbxml from the command line and it returns command not found
path/to/dir/dbxml-2.5.16/install/bin$dbxml
-bash" dbxml: command not found
Can someone point me in the right direction
I want to be able to use Ctrl+R to have reverse-i search. Also if I press Shift+Up Arrow after typing the first few characters of a recently executed command then the shell should complete the command by finding the most recent commmand having the same first few characters.
View 1 Replies View RelatedBash's command history is great, especially it is useful when adding the history -a command to the COMMAND_PROMPT.However, I'm wondering if there is a way to log the commands to a file as soon as the Return key is pressed, e.g. before starting the command and not on completion of the command (using the COMMAND_PROMPT option would save the command once the prompt is there again).
I read about auditing programs like snoopy and session recorder like script but I thought they're already too complex for the simple question I have. I guess that deactivating that script logs all the output of the command would lead already in the right direction but isn't there a quicker way to solve that probelm?
When you run the following cp command in the BASH terminal, how does Linux know which files are the source and which are the destination when copying multiple files from one location to another?How does Linux know that the services, motd, fstab, and hosts files are the source and the /home/fred/my_dir is the destination?This question came up in a Linux class and I was not sure of the answer. I was thinking it is based on the source path entered ending with a file path and the destination being a directory, but was not sure.
View 4 Replies View Relatedi'm trying to redirect the output of a command to the input of the next command. not sure if i'm going about this the right way. an easy method would be just to store the output of the previous command in a file and redirect input to read that file, but i'm curious to see if this can be done without writing to any files.
View 9 Replies View RelatedPossible Duplicate: What does this cryptic bash command mean? Why this command crashes Linux? :(){ :|:& };:
View 4 Replies View RelatedUp until now I've been using plink to remotely compile a project I'm working on. But recently the administrator from the remote server updated the distribution and messed up some configurations. My project has a lot of scripts written for tc shell (tcsh), and now the default shell is bash. There is no way to change this. Another problem is that now I need to run newgrp to change my default user group.
So... to work around this problem I've changed my .bashrc to run newgrp and then tcsh. If I do a normal connection using SSH, everything works as expected, but when using plink, or SSH to remotely execute commands, the shell gets stuck on the newgrp command. I think it's because both applications need a return value from newgrp to send the command I need to execute. Remotely running scripts that call a shell also get stuck like newgrp (newgrp also opens a new shell and that's why it gets stuck) my .bashrc is as follows:
Code:
user_grp=`id -g`
if [ $user_grp != 4919 ]; then
newgrp new_group_id
else
[code]....
i want in the website they ask to enter some input.Code:echo -e "<p>Please Enter Year : c</p> "read Yearif i use this command it will ask the user to enter year in command. but what i want is they ask the user to enter year in web browser.
View 14 Replies View RelatedWhat's the command to delete bash command history?
View 4 Replies View RelatedI have a script which builds a project and then runs junit tests. However, if the build fails, the junit tests fail with the same error message.Therefore the command which runs the junit tests should only be executed if the build was successful.
View 3 Replies View Related