Samba4 AD DC randomly dies, error: "Did not manage to negotiate mandetory feature SIGN for dcerpc auth_level 6".
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
samba (Ubuntu) |
Incomplete
|
Undecided
|
Unassigned |
Bug Description
Hello!
I'm using Samba4 AD DC, from Ubuntu 14.04.1, it works almost flawlessly but, almost everyday, it dies.
The error log begins to show:
"Did not manage to negotiate mandetory feature SIGN for dcerpc auth_level 6"
Then, the replication stops working, the domain stops responding and Windows guests do not authenticate, it becomes really messy.
Here is the workaround:
---
rm /var/log/samba/* ; service samba-ad-dc restart
---
More info:
https:/
Issue: "samba" process uses excessive CPU time and generates high IO Wait. log.samba has many entries stating "Did not manage to negotiate mandetory feature SIGN for dcerpc":
http://
Thanks!
Thiago
Guys,
It is impossible to use Samba 4.1.6 from Ubuntu 14.04.1 as an AD DC in production.
This is happening all the time:
http:// i.imgur. com/wDqOsy6. png
I think that if you restart any Domain Controller, it will trigger this error on others DCs. Because I just restart my PDC (ubuntu-ad-1) and all BDCs dies.
I just build an Ubuntu PPA Archive to provide Samba 4.1.11 for Trusty: http:// launchpad. net/~martinx/ +archive/ ubuntu/ ig - I'll test it today.
Ubuntu needs a much, far much more serious Q.A. Team.