Perhaps it is my misinterpretation of AppArmor, how can it be configured to restrict TCP or UDP traffic to/from specific ports?
The profile "abstractions/nameservice", under the section "# TCP/UDP network access", doesn't seem to lock the application to port 53. What am I missing? Restriction to specific ports is something that systrace can do so I'd expect nothing less from AppArmor.
I am trying to use apparmor to restrict my file browser, which is Thunar to only let me view the files that are in the home directory and also removable media.I tried following the apparmor sticky with no success.I created the profile and tried editing it and it either started and let me do pretty much everything or did not start at all. Would it be possible for someone to help me step by step to set up a profile for thunar that would only show the home directory and removable media.
View 2 Replies View RelatedI am trying to configure Bittorando and iptables using Firestarter. I have got it working but am concerned about security holes.
Let me explain.
AIUI, the Bittornado program contacts the "tracker" on various ports which (from the previously blocked connections in Firestarter) ranged from 4664 to 65532. Therefore, currently I have set this range to be open to allow downloads of the torrent.
However, this seems, IMHO, to devalue to point of having a restrictive exit policy for Firestarter since now virtually all ports are open. I can see nothing on the Bittornado client to restrict the outgoing ports although the "listening" (incoming) ports can be restricted.
I would prefer to have my system locked-down so that the minimal number of ports are open to initiate external connections so is there any way to achieve this with Bittornado?
I want to restrict SSH so that its only accessible via the machines I own on this network. Obviously need to secure user authentication/host authentication, that aside though is the following sufficient at a network level given technical users also use this network? IP addresses are static, though I know they could be spoofed.
Code:
Chain INPUT (policy DROP)
target prot opt source destination
existing-connections all -- anywhere anywhere
allowed all -- anywhere anywhere
[Code]....
Need to restrict cvs login from specific IPs
in file /etc/security/access.conf
+ : builduser : 10.200.2.1
Do not work
when changed to ALL as below it works
+ : builduser : ALL
I'm trying to VPN in somewhere and it doesn't like any outbound connections. I'm doing this for RDP, so can I somehow restrict the VPN connection to only be using the RDP port?
View 1 Replies View RelatedI am looking at ways in which I can restrict the SSH session requests come by specific SSH client (say Putty or NX Client). Is it possible to restrict SSH client login to a client application?
View 8 Replies View RelatedI like to set in iptables to allow access from one host to my server on any ports.Currently the iptables have been configured to deny all and to allow access only to those I've specified.
View 2 Replies View RelatedI like to set in iptables to allow access from one host to my server on any ports.
Currently the iptables have been configured to deny all and to allow access only to those I've specified.
Can anyone advice on the command to achieve this?
prohibit execution of any program include shell command, only be profiled program could be executed, can apparmor do that?
View 5 Replies View Relatedi am using openssh 5.2-p1, i want to restrict user "admin" to login to the server from a specific IP address, for this purpose i have tried the following blocks in sshd_config file.Following is the part of the sshd_config file which i have modified
#The following commands will only allow specific IP to login to ssh.
#AllowUsers admin user1 user2
#AllowGroups
# override default of no subsystems.Subsystem sftp internal-sftp
Match Group sftpgroup
ChrootDirectory /home
AllowTCPForwarding no[code].....
i want to restrict admin user to login to the server only from 172.16.100.221 IP which can be done by using AllowUser line, but i dont want to use AllowUser line,
Or do you just use Ubuntu feeling safe enough without them? If you do use AppArmor and other security measures, what do you use them for? Obviously Firefox and Chrome would be two things. But what else?
View 9 Replies View RelatedI am trying to download site using wget :$sudo wget -r -Nc -mk [URL] but it is downloading the contents of all directories and subdirectories under the domain :[URL] (ignoring the 'codejam' directory) so it is downloading from links like : [URL]... i want to restrict the download so that wget command should download only the things under 'codejam' directory
View 9 Replies View RelatedI set the profile for Firefox to enforce sudo aa-enforce firefox.Does this now apply to all users on my system or just the user I was logged in as?
View 2 Replies View RelatedDoes anyone know if Apparmor will work on the Ubuntu 10.04 livecd? I know there are currently issues running Apparmor on stacked filesystems with aufs. Currently a casper scripts disables Apparmor during boot up. Would be very useful if it could be run in a live session.
View 4 Replies View RelatedAnyone set up an Apparmor profile for Firefox?
View 9 Replies View RelatedInspite i have read through the sticky link but i have a query.
Example,
If you have your firefox under enforce mode in apparmor,are you still able to install an update / addon to it to a newer version.
If not,how to disable the apparmor in firefox.Is it as below?
Code:
So I activated the Firefox profile:
Code:
And restarted Firefox (even rebooted), but it doesn't seem to be working. When I open Firefox I am able to perform a "Save Page As" in locations I shouldn't be able to, like my Desktop or Pictures folder.
The following command says the Firefox process is in enforce mode:
Code:
Of the following lines, the only directory which is "rw" is /Downloads, why am I still able to write to other places?
Code:
OS: Ubuntu 10.10
Can someone with an active Firefox profile do this simple test for me? Click File -> Save As and try to save somewhere the Apparmor profile shouldn't let you, and let me know the results.
Tried the apparmor profile for Firefox. how to turn it off. No matter what I do, it still shows up as being on in apparmor status.
View 3 Replies View RelatedI'm trying to understand the Apparmor and would like to get FF profile from Bodhi.zazen [thank you],but I'm kinda new to Linux.Did lots of reading but missing one thing:
1.where is FF profile? I can't see any usr.lib.firefox-3.6.12
2. how do I do copy FF profile from Bodhi.zazen?
I followed this thread:[URL]...When I get to this part:sudo genprof firefox it does not work in the terminal. Is this still supported for Ubuntu 11?
Also, I installed the profiles. Is something supposed to happen now or do I need to configure them?
sudo apt-get install apparmor-profiles
Where is some good documentation with concrete examples on the best practices for how to update AppArmor profiles?
View 2 Replies View RelatedWhen I enable a new AppArmor profile that is not in the kernel, I've used this command:
Code:
apparmor_parser -r /path/to/profile
But when I recently read the manual for AppArmor, it says to use this command for new profiles:
Code:
apparmor_parser -a /path/to/profile
Have I done something wrong by using -r instead of -a?
It seems that AppArmor can't be effectively used to protect read access to files from users (including roots). It is possible to create a profile for, eg, 'cat', but then the users can use 'less'.Is this true? Should use SELinux instead for this?
View 5 Replies View RelatedI have a program that generates large amounts of apparmor log messages. I'm happy to enforce restrictions on the program but I really don't want it to fill my log with messages every time it attempts to read a file.
Is there a way to let it enforce restrictions but not log denials?
Since Ubuntu 9.10 I used:
"sudo apt-get install apparmor-profiles
sudo enforce firefox"
However in Lubuntu 11.04 the "sudo enforce firefox" command does no longer work. It looks like the enforce command is no longer recognised.
i was trying to edit my firefox apparmor profile. I used aa-genprof, and accidentally closed the terminal before the program was finished. Firefox wouldn't load properly after that whenever it was enforced. I uninstalled and reinstalled the profiles, but it didn't help.Finally I deleted the files for the profile itself ... now it will not reinstall them..I marked all the apparmor packages for complete removal and then reinstalled them but it will not put the original firefox profile back in.
View 2 Replies View RelatedI'm working on a Linux (fedora) based arcade dance machine using a game called Stepmania. I've got it all up and running and i'm trying to get it to work with two dance pads.
It detects the dance pads fine and they work well, the only issue is that when the machine is turned on it seems to randomly pick which pad is /dev/input/js0 and which is /dev/input/js1
What this leads to is the pad on the left controlling the character on the right & vice-versa. So I was wondering if there is any way to tie or map the joystick to a particular USB port so they always stay where they should ? Or is there another way this could be accomplished ?
I'm working on a Fedora 14 based arcade dance machine using a game called Stepmania. I've got it all up and running and i'm trying to get it to work with two dance pads.
It detects the dance pads fine and they work well, the only issue is that when the machine is turned on it seems to randomly pick which pad is /dev/input/js0 and which is /dev/input/js1
What this leads to is the pad on the left controlling the character on the right & vice-versa. So I was wondering if there is any way to tie or map the joystick to a particular USB port so they always stay where they should ? Or is there another way this could be accomplished ?
How to configure iptables to allow only 22,80,3306 ports for only a dynamic public ip/dyn dns domain name on a ubuntu server?
View 9 Replies View Related