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Mastering Linux Security and Hardening
book

Mastering Linux Security and Hardening

by Donald A. Tevault
January 2018
Intermediate to advanced
376 pages
8h 45m
English
Packt Publishing
Content preview from Mastering Linux Security and Hardening

Troubleshooting AppArmor problems

So, I've been here racking my brain for the past several days, trying to come up with a good troubleshooting scenario. It turns out that I didn't need to. The Ubuntu folk have handed me a good scenario on a silver platter, in the form of a buggy Samba profile.

As you've just seen, I used aa-enforce to put the two Samba-related profiles into enforce mode. But, watch what happens now when I try to restart Samba in order to get the profiles to take effect:

donnie@ubuntu3:/etc/apparmor.d$ sudo systemctl restart smbdJob for smbd.service failed because the control process exited with error code. See "systemctl status smbd.service" and "journalctl -xe" for details.donnie@ubuntu3:/etc/apparmor.d$

Okay, that's not ...

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Publisher Resources

ISBN: 9781788620307