AppArmor is a Linux Security Module

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60
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3answers
8k views

What is apparmor?

I hear a lot of talk about apparmor, I want to know the following: What is apparmor? How does apparmor work?
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14answers
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Can't start mysql - mysql respawning too fast, stopped

Today I did a fresh install of ubuntu 12.04 and went about setting up my local development environment. I installed mysql and edited /etc/mysql/my.cnf to optimise InnoDB but when I try to restart ...
14
votes
2answers
1k views

Is it a bad idea to run SELinux and AppArmor at the same time?

My corporate policy says that Linux boxes must be secured with SELinux (so that a security auditor can check the 'yes, we're extremely secure!' checkbox for each server). I had hoped to take ...
13
votes
5answers
21k views

How to secure ubuntu server from bruteforce ssh attacks?

I have my passwords secure, but I heard people complaining about perfomance of a server going down drastically when a bruteforce attack is taking place. How can I secure my ubuntu 10.10 server from ...
13
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2answers
1k views

How can I tell that apparmor is working?

Some questions I want answered in the answer: How do I know if apparmor is running? How can I tell if it's working well?
11
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1answer
693 views

How do you permanently activate all AppArmor profiles?

I want all the AppArmor profiles activated wherever applicable permanently, how can I do that?
8
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1answer
908 views

AppArmor denying a mount operation

How do I convince apparmor to allow this operation? [28763.284171] type=1400 audit(1344273461.387:192): apparmor="DENIED" operation="mount" info="failed type match" error=-13 parent=7101 ...
7
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2answers
351 views

How does AppArmor deal with non-profiled Programs?

I setup and configured AppArmor in Ubuntu and I would like to know how AppArmor deals with Packages and Applications which have no AppArmor Profile? After installing the package with sudo apt-get ...
6
votes
1answer
572 views

Is troubleshooting AppArmor with 'teardown' unsafe?

I understand there is a safer, more targeted way to troubleshoot AppArmor's possible contribution to an issue than completely stopping the service and tearing down AppArmor profiles. Can someone give ...
6
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2answers
1k views

What does Firefox AppArmor restrict/allow?

I know the AppArmor profiles resides in /etc/apparmor.d/, but I do not know how to interpret it. Any translation would be enlightening.
5
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2answers
423 views

How to prevent users from installing non-free software?

Is it possible to disable installation of non-free or proprietary softwares and applications in Ubuntu?
5
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1answer
139 views

How do I create a default fallback profile for any process that doesn't have one in AppArmor?

Is there a way to specify a default profile on any executable that doesn't have a profile already defined? The idea is to avoid any unconstrained processes.
5
votes
1answer
555 views

File access: open fails for one program but not another

This is the most unusual thing. I'm trying to start up mysqld with a different my.cnf (so I can have two MySQL daemons running without conflict). The file is /etc/mysql/my2.cnf but mysql won't open ...
5
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1answer
216 views

Can apparmor restrict interpreted languages?

For interpreted/vm languages(e.g. python, java, shell scripts) can apparmor be set to only confine a particular script or program? If so, how?
4
votes
1answer
3k views

Where do I get the AppArmor 2.4 compatibility patch?

I just compiled the 2.6.39-rc1 kernel and AppArmor complains about a missing /sys interface (plus, it slows down the boot). Where do I get the AppArmor 2.4 compatibility patch AppArmor asks for?
4
votes
3answers
6k views

Unable to start mysql server after update

Today I updated the system, and I cant start the mysql server: I'm getting the following error: Aug 14 14:32:09 VULTURUS kernel: [ 1996.413190] init: mysql main process (14122) terminated with ...
4
votes
1answer
196 views

Apparmor has hats like null-12b08

I am running a Ubuntu 12.04.2 server with Apache using mod_apparmor. When I run aa-status, I see thousands and thousands (seriously, over 100,000) of profiles with names like ...
4
votes
1answer
216 views

Preventing a specific application from accessing a folder

I just installed an application that has the bad habit of automatically scanning all my folders for files to edit. The app has no available options to disable this behavior. I cannot just remove ...
3
votes
1answer
9k views

How to allow bind in app armor?

Question: I did setup bind9 as described here: http://ubuntuforums.org/showthread.php?p=12149576#post12149576 Now I have a little problem with apparmor: If I switch it off, it works. If apparmor ...
3
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2answers
1k views

Where could I get the apparmor profile for latest Skype4?

Where could I get the apparmor profile for latest Skype4? I tried to make my own based on previous skype version but there are too many errors while launching.
3
votes
1answer
540 views

Anyway to use Skype in AppArmor?

Ubuntu 14.04 and Skype 4.2 installed. I've set up AppArmor using the Skype AppArmor profile from this wiki. When I use AppArmor with Skype, it has no audio. Is anyone using AppArmor successfully with ...
3
votes
1answer
3k views

Why do I have to enable the AppArmor profile for Firefox? Why isn't it “on” by default?

I have a pretty standard default install of 11.10 (Unity 3D). I'm trying to understand a bit about AppArmor. sudo aa-status shows me that the available Firefox profile isn't being enforced (since it ...
2
votes
1answer
897 views

apt-get hang at Rsyslog

When I try to install something, there is a hang, I don't know if it's a bug or something else... root@computer:~# apt-get install Reading package list... Done Building dependancy tree Reading state ...
2
votes
1answer
310 views

How to fix apparmor=“DENIED” for telepathy-mission-control-5 under Ubuntu 14.04?

Just installed Ubuntu 14.04 LTS a week ago and a few programs for my work & fun: nginx server, rabbitmq server, mysql server php-fpm, hhvm sublime-text, mysql workbench hplib (for ...
2
votes
1answer
76 views

U1DB problems with apparmor

I'm having problem with u1db and apparmor. The application works fine, but when it is packaged apparmor does not allow the app to save data into $HOME/.local/share/.. so I can't actually save my ...
2
votes
2answers
5k views

How to re-enable a disabled standard user account?

Disabled a standard user account but did not opt to delete files. Later, tried to enable the account. At that time, a password had to be selected so entered a different one from the earlier one. Now, ...
2
votes
2answers
296 views

How to get back the firefox apparmor profile after deleting it?

I deleted the apparmor profile for firefox when I was tinkering with it... And now I can't get it back. I uninstalled (complete) the apparmor program, profiles, etc. And when it reinstalled, I ...
2
votes
1answer
737 views

How to fix AppArmor `could not open` error when installing php+mysql?

I want to install php5-imap php5-ldap php5-curl sudo apt-get install php5-imap php5-ldap php5-curl I get this error: AppArmor parser error for /etc/apparmor.d/usr.sbin.mysqld in ...
2
votes
1answer
2k views

Having problems getting Samba4 and Bind9 working together because of apparmor

So I've been following the Samba4 HOWTO, which has gone reasonably well. The issue I'm having is I can't get BIND9 to restart when the samba configuration is included in /etc/bind/named.conf.local: ...
2
votes
1answer
972 views

Apparmor not starting with kernel LSM error [closed]

Starting apparmor on a Ubuntu Lucid Lynx gives the following: user@host:~$ sudo /etc/init.d/apparmor start * Starting AppArmor profiles * AppArmor not available as kernel LSM. ...fail! ...
2
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0answers
169 views

How to use Firefox AppArmor profile with IcedTea Java plugin on Ubuntu 14.04?

Whenever I set up Ubuntu on a new system, I active the default AppArmor profile for Firefox via sudo aa-enforce /etc/apparmor.d/usr.bin.firefox Doing this on Ubuntu 14.04, however, makes Java ...
2
votes
2answers
302 views

Tor not working after update

Yesterday I updated my Ubuntu 14.04 LTS and after that Tor stopped working : When I try to run Tor using command sudo service tor start it gives an error aa-exec: ERROR: profile 'system_tor' does ...
2
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0answers
169 views

Hide Skype from panel with apparmor and keep links in chat openable

To hide Skype from unity panel we can add file /etc/apparmor.d/usr.bin.skype with such content: # Last Modified: Tue Jun 12 03:49:49 2012 by izx # REPOSITORY: ...
2
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0answers
278 views

Another apparmor / mysql wont install

I am trying to config another instance of mysql on my present but i can't mysql_install_db --user=mysql --datadir=/var/lib/mysql2 Installing MySQL system tables... ERROR: 1005 Can't create table ...
1
vote
2answers
685 views

Removing AppArmor

I have MySQL installed in my development machine, where I just don't need any additional security measure. I want to move MySQL Data files to another partition, which implies a lot of change in ...
1
vote
1answer
18 views

Is evince-gtk protected by apparmor?

The 14.10 software center offers evince and a version called evince-gtk with fewer GNOME dependencies. In /etc/apparmor.d there is an apparmor profile for evince: /etc/apparmor.d/usr.bin.evince. My ...
1
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1answer
1k views

What is reason for apparmor=“DENIED” operation=“open”

Jan 26 13:25:27 nanak-P570WM kernel: [ 3184.247986] type=1400 audit(1390703127.047:85): apparmor="DENIED" operation="open" parent=2911 profile="/usr/lib/telepathy/mission-control-5" ...
1
vote
1answer
169 views

Why is there no Apparmor profile for the terminal?

I understand that Apparmor profiles are useful for securing programs that have access to the internet. Hence the question. I don't see any "terminal"-related profile here.
1
vote
1answer
327 views

Apparmor doesn't work with 3.1.5-pf kernel

I have update manually the kernel on ubuntu 11.10 and now I have this messages on boot: Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs ...
1
vote
1answer
58 views

How do I block all traffic except firefox?

Lets say for example I want to block all traffic except incoming from nginx, outgoing for firefox and allow out and incoming to some torrent client. Would that be possible? I took a look at apparmor ...
1
vote
2answers
40 views

Permissions for thumbnailer on device

I'm developing an application for U-Touch that gets a thumbnail from a video in C++ code using libthumbnailer system library. The app does the thumbnailing perfectly in my computer, but when i try to ...
1
vote
1answer
919 views

Contain Docker Engine with AppArmor

In face of the reminders that the Docker Engine should be run contained with AppArmor or SELinux, how to run Docker under AppArmor on Ubuntu 14.04? The Docker Security documentation and the LXC ...
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2answers
383 views

How to display AppArmor denied messages as desktop notifications

How can I get live notifications on my desktop whenever an AppArmor denied message is triggered?
1
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1answer
2k views

How do I enable the AppArmor profile for Firefox?

Recently there an article in about configuring FF with AppArmor. When I ran the below command cat /etc/apparmor.d/usr.bin.firefox | sudo apparmor_parser –a I get the following error Error: ...
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0answers
22 views

How to customize locally an apparmor profile?

I would like to run Firefox with aa-enforce(d) apparmor profile. This works fine, except I have a plugin that need access to the keyring via dbus. When the plugin ...
1
vote
0answers
28 views

Blocking specific programs from accessing the internet isn't working (iptables / apparmor) [closed]

I'm using this guide to try to block a few programs from sending or receiving data from anything other than 127.0.0.1, but it's not working. First off, the suggested way of only allowing an IP block ...
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0answers
19 views

Can AppArmor have default policies for all applications without profiles?

Goal: Deny all applications network access and all network access for one or more explicitly specified applications.
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0answers
49 views

How to change apparmor logging file?

Apparmor logging to syslog by default. How to change apparmor config to logging to /var/log/apparmor.log for example?
1
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1answer
148 views

How can I put tomcat under apparmor?

For security reasons, I want to put Tomcat under apparmor. The Ubuntu server(12.04 LTS) guide has a good explanation about apparmor, but I am not sure what is the correct way of creating a profile for ...
1
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0answers
60 views

Apparmor and Ecrypfs trouble with encrypted ~/Private directory

In my system I made an encrypted ~/Private directory by ecryptfs-utils package. It works good, but I have a problem with apparmor. Into the Private folder I moved some home directories, like .local, ...