Ubuntu Security :: How Secure Are The Default File Permissions

Feb 5, 2010

What do the default file permissions in ubuntu 9.10 protect/deny access to?

View 9 Replies


ADVERTISEMENT

Fedora Security :: Default File Permissions In /boot?

May 14, 2010

Does anyone know why files in /boot are world-readable (particularly the initial ram disk)? I'm not an expert, but I would not expect anyone except root or a sudoer to have the ability to read these files.

View 5 Replies View Related

Fedora Security :: FW Default F10 Standardly Secure?

Mar 14, 2009

Are the default firewall settings of F10 without any modification, sufficiently secure for general usage and to bridge the timeframe between a fresh installation of F10 and the time before the security updates are applied?imilar to how Windows firewall is set without any configuration, or do I need manually configure it to be somewhat secure, or something like Firestarter.

View 14 Replies View Related

Ubuntu Security :: Secure A Default Install Of Xubuntu Desktop 10.04?

Dec 24, 2010

how secure a default install of Xubuntu desktop 10.04 is when connected to the internet with a routable, public ip address. If anyone can give some recommendations on any changes/additions they would make to improve security

View 2 Replies View Related

Security :: Missing A Secure.log Or Security.log File

Jul 11, 2010

I seem to be missing a secure.log or security.log file. I have Ubuntu 10.04 and can't find this file. I looked in the /var/log and ran a search command to no avail. Does anyone know where this file is or is it called something else. I'm looking for a file that logs any change to the security settings of the system.

View 1 Replies View Related

Ubuntu Security :: Secure File Transfer

Feb 4, 2010

If I need to get a file to someone I could place it on the server and somehow automate an email telling them there is a file available. They could login to the server based on their email address and a randomly generated key combination and down load the file.I also need it to preform the same function going the other way. Login into my server and place files going to me.

View 2 Replies View Related

Ubuntu Security :: Missing Secure.log File?

Jul 11, 2010

I seem to be missing a secure.log or security.log file. have Ubuntu 10.04 and can't find this file. I looked in the /var/log and ran a search command to no avail. Does anyone know where this file is or is it called something else.looking for a file that logs any change to the security settings of the system.

View 6 Replies View Related

General :: File Share Security The Setup Is Not Secure At All?

Jan 7, 2010

Been messing around with Ubuntu 9.1 for the last few weeks and am loving it so far. Been trying to get in the terminal and learn a little something, to no avail. LOL I have been googling and searching the site today for info on networking. My Linux box is a desktop, with my main HDD mounted with music, and movies and some other stuff. My intent is to network the two laptops in the house (Windows XP and Windows 7) to the Linux box so I can listen to my music and watch movies when not in the office. I have found some info, mostly involving Samba, and plan to install Samba tonight and fiddle with it. My issue was with security. I have read a few posts and they talk about the fact that if you share files in this manner, the set up is not secure at all. Is this something i should really be concerned about? If the folders I share only have my music and videos in them,

View 4 Replies View Related

Security :: Ways To Secure Sendmail Or Secure Alternatives To Send Mail

Dec 1, 2010

I'm an Oracle DBA and started working for my current employer about 4 months ago. This past weekend an alert re: FS space brought my attention to /var/spool/clientmqueue (full of mail re: cron jobs) and the fact that sendmail is not running on our Linux servers.I'm told that the IT security team deemed sendmail too vulnerable so we don't run it.Aside from FS filling up and missing notification of issues with crontab entries, I'm concerned that we may be missing notification of potential issues. In other Unix/Linux environments I've seen emails from the print daemon when it experienced problems with specific jobs.

Are there other Linux facilities aside from cron and lpd that use email to advise the users of possible issues? Are there ways to secure sendmail or secure alternatives to sendmail? My primary need/desire is to make sure that emails regarding issues on the server get to the appropriate users. Secondary goal would be to have the ability to use mailx to send mail out. There is No need/desire to receive mail from outside.

View 1 Replies View Related

Ubuntu :: Setting Default File Permissions

Jun 26, 2011

I have a file server running a cronjob to reset file permissions on a regular basis. I was thinking, I wonder if there is a way to do the chmod and chown command in a single command, as I always have to do both on the same folder, the way that you can do "chown root:users Uploads" instead of having to do two separate commands for chown and chgrp.

Then I got to thinking, are these commands even necessary? Every file copied or moved into these folders by any user needs to be something like "chmod 750" and "chgrp root:users", so rather than running a cronjob to do these modifications at regular intervals, there ought to be a way to set the folder permissions so that any files contained within will have these permissions.

The problem arises because users create documents, then a supervisor with elevated privileges can move those documents into a shared folder, however the permissions are wrong, they are user1:user1 for the owner and group and the other users can't read the file until a cronjob changes the group to be users. This has actually been acceptable, but certainly there is a better way to do this.

View 7 Replies View Related

Ubuntu :: Change Default File Permissions?

Jul 3, 2011

my dad has been using Ubuntu for a few weeks now and likes it, however he's having some issues regarding read-only files. He's a doctor and frequently has to download word files to edit, however they always download as a read-only file. While this isn't particularly difficult to do, he finds doing it tiresome and because he isn't the most proficient PC user, may have difficulty with it when I return to school after the summer. I was hoping that there's some way to change the default settings so that all files downloaded are writeable.

Additionally, he has a number CD-RWs which he both retrieves files from and stores them to, however when trying to access these CDs he is told that they are read-only. Right clicking on the CD and trying to change the access permissions doesn't work (says that permissions can't be changed because the disc is read-only).

View 7 Replies View Related

Ubuntu Servers :: Default File Permissions Apache /var/www/?

Jan 14, 2010

This is probably a pretty basic question seeing as I'm pretty new to Ubuntu Server. I'm running a simple website from my Ubuntu Server machine with The files are all stored in /var/www/ and then subdirectories. The problem is that when I add files through FTP I need to go and change all of the file permissions since by default they do not have read access so can't be accessed through a web browser on another machine.How can I make the default permissions readable for the directory and all new files that will be moved in it

View 5 Replies View Related

Ubuntu :: SAMBA Default File Create Permissions?

Mar 28, 2011

Files saved on our ubuntu server via samba server are all being created/saved as read only (-rwxr--r--). The users are MAC Users who are connecting via finder.I have taken 2 steps:First I added the lines "umask 0000" to the .bashrc files in the users' home directories.Second, I have modified the /etc/samba/smb.conf file such that I set "create mask = 0000" and also "directory mask = 0000" but the files are still being created as "-rwxr--r--".

View 1 Replies View Related

Ubuntu Servers :: Default File Permissions For System Folders

May 5, 2010

I had a major raid event recently which caused my Ubuntu 9.04 server to recover part of its file journal on the system partition. This caused some of the file permissions to go all funny and I now need to change them manually.

What the file permissions should for the following folders:
/etc/
/home/
/lost+found/
/mnt/
/root/
/sbin/
/srv/
/tmp/

The server is running and I fixed the some of the ownership issues already. I use a basic LAMP setup with samba, and proftp.

View 2 Replies View Related

Ubuntu :: Set Default File Permissions For Newly Created Directories?

Nov 18, 2010

I'm just wondering: I know that umask sets the default file permissions for files, however I want to know if there is anyway to set default file permissions for newly created directories.

For example, I want my user to create new directories that anyone can access and modify (777) but I want the new files the user creates to be 755 (read by everyone, written only by user).

Is this possible?

View 1 Replies View Related

Security :: Secure And Automated Backups - Add Public Key To Authorized_hosts File On Prod Server?

Mar 13, 2010

I'm trying to find a secure way to backup files on my Prod Server to Backup Server. It must be automated, so I will need to run a command with cron which will login to Prod Server from Backup Server and backup data. 1. Do you think it would be secure enough to do this by creating an passwordless RSA private key on Backup Server and adding it's public key to authorized_hosts file on Prod Server? I can't think of a way to Automate this without having to enter any passwords without passwordless RSA key. Is there another. more secure way? 2. Should I create a special user for backup, which will only have read access to all files in the directory that I am backing up? If so, How can I run a check that this new backup user indeed has read access to ALL files in the folder that I intent to back up? How can I ensure the backup process will not skip files due to some permission problem? 3. I'm thinking of using rsnapshot tool, which uses rsync.

View 10 Replies View Related

Security :: Secure CGI File In Apache - Authentication By Entering The Predefined Username And Password

Sep 24, 2010

Im using opennms network configuration backup server called 'RANCID'.It run on top of RHEL5 system and using APache. Here's the link which i'm accessing [URL] But any one can access this URL and obtain my configuration files

I want to secure this using a logon page.allow login Only for the successful authentications by entering the predefined username and password But after get authenticate book marking the above URL still can access anyone since it didnt prompt username and password again In eachtime executing the above url it should direct to authenticate page

View 5 Replies View Related

Security :: Setting File Permissions For File /var/log/Xorg.0.log?

Jul 7, 2009

i am trying to set the file permissions for the log files "/var/log/Xorg.0.log" and "/var/log/gdm/:0.log". These files seem to be created when a user logs into a whokstation (my guess so far). I am trying to comply with a security mandate that all log files in the directory /var/log are set to 0640. The two mentioned files always seem to have the permissions 0644, does anyone know where and when these filea are created and how I might set the permissions when the files are created

View 1 Replies View Related

OpenSUSE :: Change Default Permissions For New File Created With Dolphin?

Jun 28, 2011

When I create a new file/folder in a ext4 data partition, it has permissions:

owner: rwx
group: r
other: r

I would like to change this default to:

owner: rwx
group: rw
other: -

I tried changing fstab, but umask and guid are not supported mount options for ext4. What can I do?

Note: I know I can do a chmod, but I don't want to do this again and again for every new file I create.

View 9 Replies View Related

General :: Concept Of Umask - Default File And Directory Permissions

Apr 14, 2010

I am using Red Hat Linux 4 .There are some few questions in my mind related to umask. I want to know that is the default file and directory permissions ?

- When we use umask (022) command in terminal. and create a new file then the permissions applied for new file is for that session and when the system will reboot linux will take automatically its default permission from etc/bashrc or /etc/profile ?
- Can we make our own umask or the professional way is to follow 022 only ?
- What is the benefit of umask in Linux?

View 2 Replies View Related

CentOS 5 :: Restore Default File Permissions - Server Nonfunctional

Dec 4, 2009

I was working on a shell script to change the permissions of large directories and subdirectories because of an exploit discovered in the programs that run in those said directories that allow a client to upload and download files to the server. Loan behold I accidentally added a space and had something along the lines of "chmod -R 770 ." run on / logged in as root.

Yes, it was an incredibly noob move on my part, but nothing ventured nothing gained. I am surprisingly calm about this. I tried sliding in my CentOS installation disk and "Upgrading" CentOS but that only made it worse, beforehand I made everything owned by root so I could at least log into GNOME. This does not work for obvious reasons, namely having to change the permissions back for every user and every group, which far beyond a possibility.

View 7 Replies View Related

Ubuntu Security :: File Access Permissions

Mar 3, 2010

I am setting up a new ubuntu server, and I am quite new to linux. This server will be used as code repository for a project I am going to be working on. I plan to setup 3 groups for users: dev, test, doc

- for various developers, testers and documentation users.

I would like to setup the following permissions on the main code repository directory:

dev - write permission
test - execute permission
doc - read permission
public (anyone outside these groups) - deny all access

I am unsure what chmod setting to use, or if this is even possible in ubuntu.

View 2 Replies View Related

Ubuntu Security :: Vim Ignores File Permissions

Mar 24, 2011

How is possible, that vim can write to file and changes his ownerchip ?

View 4 Replies View Related

Ubuntu Security :: File Permissions With Apache

Jul 6, 2011

I know how to assign file permissions and other tasks like user to group, but I'm stuck with a situation in how I should set up my system.So I have a LAMP server set up. I'm not the only developer so I created a group called "developers" for my other users "Mike," "Alex," and "Cindy," which are developers (I'm Mike by the way). I know that "www-data" is the user and group Apache uses.This is good because only I have permission to update the production site, but for the dev site, it's a different story.

View 3 Replies View Related

Security :: Is There Way To Specify Append Only Permissions For File?

Sep 12, 2009

Is there a way to specify append only permissions for a file?

View 2 Replies View Related

Ubuntu Security :: File Permissions In Live Session CD

May 9, 2010

I have broken my MBR and can now only enter 9.10 with the ubuntu start up cd.when i boot through he ubuntu live cd.I can see my mounted drive with all my files however i do not have the permissions to open or copy some of my files( music, films, pics) . id like to do this so i can transfer all my files to an external HDD and reformat start all over again.error when trying to open files.You do not have the permissions necessary to view the contents of.

View 1 Replies View Related

Ubuntu Security :: Unable To Set File Permissions (NTFS Volumes)

Oct 3, 2010

In Nautilus I select a directory on local NTFS volume. I'm logged in as root, right-click > Properties > Permissions and I set "Others" to "none". But it doesn't work. I want my friends & visitors to use and enjoy Ubuntu but without access to my NTFS volumes.

View 9 Replies View Related

Security :: User Names And File Permissions On Two Different Computers?

Jul 23, 2009

Picture the following:On computer A, local user John (and John alone) has rwx access to file1.txtComputer B also has a local user account named John. If file1.txt was to be copied from computer A to computer B, would the user account John on computer B be able to access it?I guess this wouldn't work using two windows computers due to the User name / GUID relationship. Maybe linux has something similar?

View 4 Replies View Related

Ubuntu :: Reset Apache 2 Permissions To Default Permissions?

Mar 16, 2010

Is it possible to reset apache 2 permissions to default permissions I'm using Ubuntu 9.10 command line server, would webmin give me this access ?

View 1 Replies View Related

Security :: Flow Chart For File Access And Permissions Processing?

Jan 25, 2011

Is anyone aware of a detailed "flow chart" -- arrows and decision diamonds, etc -- that describes the file access and permissions processing? I would love to see that diagram. Years ago on a platform far away (Digitial VAX/VMS) their manuals had such a flow chart that covered not only the user-group-owner and read-write-execute permissions decision making but also include "access control list" processing at a superficial level. If someone has access to the VAX/VMS flow chart, that might be a start toward sorting what linux does.

View 4 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved