I have a users, that log in from a terminal. They should not have any shell access, so currently their login script, at the end, starts the program that they use, and after that program ends, the login script moves on to log them back out. The problem is, they could press ctrl+c, while the login script is running, and it quits the login script and spits them out at a shell prompt. -- Is there any way I can prevent this?
View 4 RepliesI've created a simple script based menu. This menu will be accessed by only a certain users via ssh.When user logs in, the menu will automatically run. (configured at user's .bash_profile).How do I force the session to close when user hits Ctrl-C or Ctrl-Break ?In a nutshell, I don't want user to have access to shell.
View 11 Replies View RelatedDo I have a printer installation utility I can access through the shell? I tried installing/configuring my parallel port HP DeskJet 712C through CUPS using xfce but they didn't list my printer.
View 3 Replies View RelatedIs there an easy way to prevent the logging of commands run into syslog as post-shell expansion?
I.e log a command of "ls *.log" as just that, rather than "ls a.log b.log c.log d.log" It makes rather a mess of the log files.
I work for AT&T and our Windows-centric workgroup is being tasked with supporting an app running on RedHat. To help my coworkers, I'm building a Fedora 11 VM that we can play with to familiarize ourselves with the UNIX environment.
Because of corporate network policies in place, my VM can't get access to the Internet.
Since we're AT&T employees, we're naturally using the korn shell on the production system. I'd like to install the korn shell on my VM. However, it doesn't appear to be part of the base fedora repository.
Is the korn shell available for Fedora? If so, how would I copy it to shiny media, mount it on my VM, and install it?
I have installed Kubuntu 10.04 x64 from scratch using the alternate installation CD and unfortunately I'm experiencing some serious troubles. Everything worked fine, installed packages, moved my backed-up data to my encrypted /home partition - until I rebooted. Usually I reboot the system right after the installation process to see if the boot process shows any errors, but what can I say, seems like I forgot to do it this time .
The problem is that the boot process just "hangs" right before the login window should disappear. By "hang" I mean dead: no switching to virtual terminals, no CTRL-ALT-DEL - the system just freezes.
I'm quite familiar with doing things shell-wise, so I started the "Rescue Mode" from the alternate CD and was able to mount my root partition.
Problem #1: No faulty log entries whatsoever: dmesg, boot.log, messages etc. all looking fine - except Xorg.0.log. I suspect the proprietary Nvidia drivers to be the culprit here, because what I'm getting is: "Caught signal 11 (Segmentation Fault). Server aborting"
Running "startx" as root from the rescue shell gives the same results: complete system freeze. "Looks like a reinstallation candidate, let's just backup my data" I thought, which brings us to
Problem #2: I can't mount my encrypted /home from the rescue shell. The exact steps involved are:
Mount my root partition and chroot to it. Issuing "ecryptfs-mount-private" gives the following error message: "ERROR: Encrypted private directory is not setup properly" Becoming my user "su - faulty" and trying step 2 again yields the same results. I feel like I'm almost there: I'm executing commands in my root environment, just can't seem to access my data which I'd like to backup before doing a clean reinstall. Any thoughts?
I'll spare the details, but is there a way to use iptables to do the following:
Allow all port 80 traffic to work for squid, yum ,etc. but prevent firefox from talking to port 80?
(That way if they don't use squid proxy, it won't work)
How can I prevent a certain application from having access to ALSA. It keeps stealing my audio.
View 2 Replies View RelatedI'm doing a research to protect my pc from physical access. What I'm facing here is that my company created a program for fedora 8 and plans to sell the unit away. We created a function where you can configure the program using any web browser from a network so we do not want anybody to have access to the fedora except for out personnel.
Based on my research, I've found [URL] this guide to protect people from accessing grub and single user. I am currently researching on preventing others to clone the harddisk. I would like to know if there are any other methods to prevent people from unauthorized access to fedora.
Launching OpenOffice takes several minutes because it's trying to connect to the Internet. The problem gets worse in a dial-up connection. Turning off the Internet takes less than a second to start. How can I prevent OpenOffice from trying to access the Internet when it starts?
View 2 Replies View RelatedI'm using some software that using mount point such as truecrypt. I also mount shared folder on other machine (fileserver) and publish it using ftp. The problem is when the truecrypt volume dismounted or the shared folder mount point loosing connection to the fileserver, user can write to the mount point without knowing that they actually not writing to the truecrypt volume or to the shared folder.
My question is, when sometime the server reboot and truecrypt volume is not mounted yet, how to prevent write to the mount point? I dont run truecrypt mount automatically for security reason.Some question for shared folder, if fileserver restart and the shared folder mount point got disconnected, how to prevent write to the mount point?
I'm working on creating a bootable Linux CD to distribute a sandbox environment to customers that will work on multiple PCs.One requirement of this environment is that we do not want the user to have any access to the underlying hard drives in the computer to prevent any accidental and/or malicious damage. I can prevent the disks from automounting with a few udev custom rules, but is there any way to prevent/block the user from manually mounting the hard drives after boot up.
View 2 Replies View RelatedI would like to use my laptop at home, where I don't have internet access (don't ask, long story). My question are two-fold;
** How do I prevent various pieces of software trying to access the net for updates etc. I presume they are likely to hang, lock up, and generally cause trouble.
** Can anyone recommend a working practice for installing updates and/or new software, either from USB or CDROM/DVD? I have good (legitimate!) access to assorted computer facilities at my office. I am using 11.04
I need to access the shell prompt rather than GUI of Ubuntu. I have installed Ubuntu in Microsoft Virtual PC 2007 Sp1 wherein installation is successfull. Now i have downloaded PuTTy to my WinXP Desktop. So by what IP can i connect with Ubuntu Shell. How to configure IP in both Ubuntu and in Windows XP so that this will look like i am accessing the shell remotely.
View 8 Replies View RelatedIm want to know the command to add a user with no shell access so they cannot log onto the system, but there a user on there so for example they can be part of the email server.
View 2 Replies View RelatedI am looking for a secure way to backup data from user's computers ( Linux/Windows ).My needs :
1. Secure
2. Per user backups
3. Windows/Linux compatible ( server will be Linux only )
4. Incremental backups
My preferences :
1. Rsync
Things I can not do :
1. Give out shell access ( forget rsync -e ssh )
2. Use a protocol that takes too many ports ( my box is behind my router ).
I'm working on a custom Ubuntu Live CD and i have some problem with "stdin error 0" appearing before the splash screen... How can i prevent this? Or hide|redirect the output from stdin?
View 2 Replies View RelatedI use this command line to add an FTP user:
useradd ftpuser1 -d /userdir
This works, but I don't want to give Shell access to the users.
I tried this:
useradd ftpuser1 -d /userdir -s /sbin/nologin
but then user can't login at all - not into FTP and not into Shell.
What's the command to access a secure shell?
View 2 Replies View Relatedhow to integrate SSH Shell access of a Linux Server with Microsoft AD?
View 2 Replies View RelatedAfter having been a Gnome user since initial release in 1999, I have now upgraded to Gnome3. I figured despite everyone's moaning, over 10 years of a successful desktop means I should give it a fair go.
One thing: If I have a music player such as Rhythmbox open, how can I change track without breaking my current task focus and heading to "Activities" now that the notification area icon is no more? I change track alot, do I really want to change windows to do it?
I have remote location Linux running (CentOS 6.0). It has dynamic ip address so i installed noip2 service and copied the file cp redhat.noip2.sh /etc/profile.d/noip.sh. After that when the system restarted once, it never have the correct shell. As a result remotely when i try to ssh the server i cant login and i cant do anything.When i debug the ssh i see that debug1: Authentication succeeded (password). and command is also sent but nothing just happen.
View 2 Replies View RelatedI have a CentOS dedicated server running ProFTP. I have created user accounts which are meant for FTP access only but the users cannot connect to the FTP unless their shell access is /bin/bash
Here is an example line that is outputted when I use this command:
This user can access the FTP fine, but he can also access SSH which I don't want to allow him to do. If I set his shell access to /bin/false then he can't connect to the FTP.
What can I use in instead of /bin/bash to allow FTP but don't allow SSH?
I am setting up my test / development machine with the following scenario in mind : I boot the machine and then select one of a number ( e.g. 3 ) boot options in Grub ( Normally "OpenSuse", "Safe Mode" etc., but in this case "System Restore Dev.", "System Restore Test" ). The only difference between these options are the settings ( e.g. "vga=378" ) in these cases something like "distro=dev" / "distro=test".
In a script run on the booted system I can extract the value of the "distro" parameter ( in this case "test" ) and use it as input for a command line tool. Meaning that name entered as the value for the "distro" parameter is used for loading a file when the system is up and running. The command line tool then restores the partition with the contents of the file and reboots the system.Now, my problem is this : How to I access the Grub arguments? Code snippets ( in shell scripting or python preferbly ) are more than welcome.
I just downloaded MySQL-Workbench and I see it in the folder: Code: /usr/bin how do I access it from my desktop without having to tie up my bash shell because the only way I can get to it right now is
Code:
cd /usr/bin
mysql-workbench
and only when I close the program can I use my bash for anything else.
I'm having a hard time to access MySQL from the local or remote shell.
If I try to access MySQL, using mysql -u root -pxxxx I get the error 1045 Access denied...
MySQL is running and I can access it, using phpmyadmin.
There must be something blocking shell access. Can anybody confirm and tell me how to check/configure for shell access?
I'm using ca preconfigured CenOS from PBX in a flash and it seems they did some security settings - but I can't find any further information.
I know I should probably post there, but the Mods didn't activate my account yet. And you know how it is if you try to figure something out. You won't stop.
I want to use my BootIt NG boot menu. How would I go about installing Debian 5.0.3 and prevent Grub from loading into MBR? I don't remember being asked by the installer where to put Grub. Unlike Fedora where you can choose MBR or boot section of the target partition. Debian 5.0.3 -
View 2 Replies View RelatedI search, and everything I find seems to be "old" information that no longer works.
I currently have,
linux-image-2.6.32-21-generic/lucid uptodate 2.6.32-21.32
linux-image-2.6.32-22-generic/lucid uptodate 2.6.32-22.36
linux-image-2.6.32-23-generic/lucid uptodate 2.6.32-23.37
linux-image-2.6.32-24-generic/lucid uptodate 2.6.32-24.43
[Code]....
I have a persistent usb key with Ubuntu 10.10 Netbook remix. I need to know how to stop the installer fro0m running on boot so that it just goes to the desktop
View 1 Replies View RelatedI've recently downgraded kaffeine to 0.8.8 to get back the EPG which was working under hardy. Is there a simple way to prevent a package from updating when I update the rest of the system? I realise that this is not normally a good idea to keep packages back like this, but the upgrade to kaffeine caused the loss of a useful tool.
View 4 Replies View Related