AppArmor is a Linux Security Module

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60
votes
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?
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?
22
votes
14answers
40k views

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 ...
2
votes
1answer
970 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! ...
13
votes
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?
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 ...
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 ...
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 ...
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 ...
6
votes
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.
0
votes
1answer
3k views

Ubuntu 12.04 not loading after installing updates - initctl: Event failed

After updating my Ubuntu installation I get a blank screen when try to load it. I have dual boot with Windows which works fine. Going into recovery mode -> resume normal boot gives me the following ...
5
votes
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?
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 ...
2
votes
1answer
303 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 ...
1
vote
0answers
90 views

apparmor don't start with 12.04 LTS 64Bit

I installed with apt-get install apparmor-utils apparmor-profiles apparmor-notify but even after a reboot aa-status tells me apparmor module is not loaded. cant find entry in syslog and ...