Sponsored Content
Top Forums UNIX for Advanced & Expert Users Stop root from writing to directory Post 303041316 by Neo on Thursday 21st of November 2019 09:14:29 AM
Old 11-21-2019
Quote:
Originally Posted by foad

....

The usual remedy if you want some file(-space) to be protected from roots tampering is to put it off the server: create an NFS share on some remote server, mount it where you want to be protected from roots access and adjust the rights accordingly. This is the common way of i.e. protecting logs from possible tampering.
Let me correct your words here.

This is not a "usual remedy", but it is one technical control in wide a range of possible technical controls based on the risk profile of the server.

I don't have a lot of time to write a long reply, so let me summarize:

Security is defined, generally, in three areas (1) confidentiality, (2) integrity and (3) availability.

The original poster has not defined which of these are the most critical to their organization / application / server.

For example, the application on this server may be less interested in file integrity than high availability. If that is the case, then having a network mounted device may not provide the insured availability because networks can fail, wires can break, network devices can go down, even unplugged, etc. In one datacenter I worked, I watched a major device fail because a manager rolled his chair (sitting in the chair) over a LAN cable while talking to the team.

Anyway, it is important, when talking about IT security to talk about the risk and define the risk profile; because what is correct for one application / server may not be the best for another; and the controls: (1) techincal,(2) administration and (3) physical.

More later, if this thread gains any traction.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

What files are writing to a directory

Is there a way to tell what files/scripts are writing/wrote to a given directory? (3 Replies)
Discussion started by: hattorihanzo
3 Replies

2. Shell Programming and Scripting

writing script to clean up a directory

I have to do a directory clean up on several machines. The task is as follows: go to a particular directory (cd /xxx) 1. create a directory ' SCRIPTCLEANUP ' ( i KNOW IT) loop through 2. List the directory 3. if directory and start with 'DQA' leave it, 4. if directory or file move it to... (0 Replies)
Discussion started by: ajaya
0 Replies

3. UNIX for Dummies Questions & Answers

how to stop to current directory using find

Hello, I just want to ask the following use of find command: 1. how can I find files only to the current directory? 2. how can I find files to directories and all subdiretories (are this include soft links?) but will not go to other mountpoints that is under that mountpoint. Im combining... (1 Reply)
Discussion started by: james_falco
1 Replies

4. Shell Programming and Scripting

stop unix find on a directory structure after finding 1st occurrence

Hi, Has anyone tried to restrict Solaris 10 unix find on a large directory structure based on time to stop running after finding the first occurrence of a matching query. Basically I'm trying to build up a usage map of user workspaces based on file modification (week/month/3 months/year etc) and... (3 Replies)
Discussion started by: jm0221
3 Replies

5. UNIX for Dummies Questions & Answers

How to display only Owner and directory/sub directory names under particular root

hai, I am new to Unix, I have a requirement to display owner name , directory or sub directory name, who's owner name is not equal to "oasitqtc". (here "oasitqtc" is the owner of the directory or sub directory.) i have a command (below) which will display all folders and sub folders, but i... (6 Replies)
Discussion started by: gagan4599
6 Replies

6. Shell Programming and Scripting

Writing Script to Copy Newest Directory

I am trying to write a script that once executed it will search within a directory and copy only the newest directory that has not been copied before to a new location. Kind of like what ROBOCOPY /M does in windows? The directories are not left in the new location so using a sync action won't... (2 Replies)
Discussion started by: Keriderf
2 Replies

7. Shell Programming and Scripting

Shell script to poll a directory and stop upon an event

Need shell script to: 1/keep polling a directory "receive_dir" irrespective of having files or no files in it. 2/move the files over to another directory "send_dir". 3/the script should only stop polling upon a file "stopfile" get moved to "receive_dir". Thanks !! My script: until do... (0 Replies)
Discussion started by: iaav
0 Replies

8. What is on Your Mind?

Stop Writing Scripts

Please, I beg you, “Stop!” Yes, stop writing scripts and instead build workflows. Programmers, Sys-Admins, System Support, I'm talking to you. Ok, I know in this community I'm going to get some serious backlash for my statements but I truly believe in my statement. There was a time when... (13 Replies)
Discussion started by: mikemazz
13 Replies

9. UNIX for Dummies Questions & Answers

Removing directory with leading hyphen from root directory

I know that this basic question has been asked many times and solutions all over the internet, but none of the are working for me. I have a directory in the root directory, named "-p". # ls -l / total 198 <snip> drwxr-xr-x 4 root root 4096 Dec 3 14:18 opt drwxr-xr-x 2 root ... (2 Replies)
Discussion started by: edstevens
2 Replies

10. Solaris

SunOS confusing root directory and user home directory

Hello, I've just started using a Solaris machine with SunOS 5.10. After the machine is turned on, I open a Console window and at the prompt, if I execute a pwd command, it tells me I'm at my home directory (someone configured "myuser" as default user after init). ... (2 Replies)
Discussion started by: egyassun
2 Replies
mount(8)						      System Manager's Manual							  mount(8)

Name
       mount, umount - mount or unmount file systems

Syntax
       /etc/mount [ options ] [ device ] [ directory ]

       /etc/umount [ options ] [ device ] [ directory ]

Description
       This  is  a  general description of the command.  Additional descriptions are provided to define the syntax and options for the NFS and UFS
       file systems.

       Each invocation of the command announces to the system that a file system is present on the device device.  The file system may be local or
       remote.	File directory must exist as a directory file.	It becomes the name of the newly mounted file system root.

       If invoked without arguments, prints the list of mounted file systems.

       Physically write-protected disks and magnetic tape file systems must be mounted read-only or an error will occur at mount time.

       General users can only mount file systems with certain restrictions.  For example, the user, other than the superuser, performing the mount
       must own the directory directory.  Furthermore, no users other than the superuser can execute or programs on the mounted file systems.	In
       addition, users other than the superuser cannot access block or special character devices such as on the mounted file systems.

       The  command  announces	to the system that the removable file system previously mounted on the specified directory is to be removed.  Only
       the person who mounted a particular file system or the superuser can unmount the file system again.

Options
       -a	   Reads the file and mounts, or unmounts, all file systems listed there.

       -f	   Fast unmount.  The option has no meaning for local file systems and directories.  However, for remote file system  types  (such
		   as  NFS),  the  option  causes  the	client	to unmount the remotely mounted file systems and directories without notifying the
		   server.  This can avoid the delay of waiting for acknowledgment from a server that is down.

       -o options  Specifies a string that is passed to the kernel and used by the specific file system's mount routine in the kernel.	 For  spe-
		   cific options, refer to the file system-specific description, such as

       -r	   Indicates  that  the  file system is to be mounted read only. To share a disk, each host must mount the file system with the -r
		   option.

       -t type	   Specifies the type of file system is being mounted.	When used with the option, the option mounts all file systems of the given
		   type found in the file.  For specific file system types, refer to the file system-specific description, such as

       -v	   Tells what did or did not happen.  (Verbose flag)

       The options for are:

       -a	   Unmounts all mounted file systems.  It may be necessary to execute twice to accomplish unmounting of all mounted file systems.

       -v	   Tells what did or did not happen.  (Verbose flag)

Restrictions
       Mounting corrupted file systems will crash the system.

Files
       File systems information table

See Also
       getmnt(2), mount(2), fstab(5), fsck(8), mount(8nfs), mount(8ufs)

																	  mount(8)
All times are GMT -4. The time now is 05:41 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy