samba - Jun 2018 - hosts allow option is not applaying without restart smbd

Hello.

I have a lot of servers with CentOS 7 and samba 4 (classic domain
controllers), differnt versions (4.4.4, 4.6.2...).

I have found that changes hosts allow option are not applaying without
restart smbd.

I have tried:
systemctl reload smbd.service
killall -1 smbd
pkill -HUP smbd
smbcontrol smbd reload-config

but client I have added does not have access.

I see strange messages in system log:

Jun 20 15:50:20 nvkzsrv smbd[29943]: [2018/06/20 15:50:20.705223,  0]
../source3/lib/access.c:338(allow_access)
Jun 20 15:50:20 nvkzsrv smbd[29943]:  Denied connection from
192.168.36.36 (192.168.36.36)

Where 192.168.36.36 is an address I have added in hosts allow.

Changes are applaying when I restart smbd, but I can not do it while
there are a lot of opened files on servers.

Can someone explain me what does it mean?

How can I applay changes without restart smbd?


Thanks in advance.

-- 
Vladimir Eltsov

On Wed, 20 Jun 2018 16:22:36 +0700
Vladimir Eltsov via samba <samba at lists.samba.org> wrote:
> Hello.
> 
> I have a lot of servers with CentOS 7 and samba 4 (classic domain
> controllers), differnt versions (4.4.4, 4.6.2...).
> 
> I have found that changes hosts allow option are not applaying without
> restart smbd.
> 
> I have tried:
> systemctl reload smbd.service
> killall -1 smbd
> pkill -HUP smbd
> smbcontrol smbd reload-config
> 
> but client I have added does not have access.
> 
> I see strange messages in system log:
> 
> Jun 20 15:50:20 nvkzsrv smbd[29943]: [2018/06/20 15:50:20.705223,  0]
> ../source3/lib/access.c:338(allow_access)
> Jun 20 15:50:20 nvkzsrv smbd[29943]:  Denied connection from
> 192.168.36.36 (192.168.36.36)
> 
> Where 192.168.36.36 is an address I have added in hosts allow.
> 
> Changes are applaying when I restart smbd, but I can not do it while
> there are a lot of opened files on servers.
> 
> Can someone explain me what does it mean?
> 
> How can I applay changes without restart smbd?
> 
> 
> Thanks in advance.
> 
run 'man smbcontrol'

Rowland

Hi, Rowland, I have the same issue too. I can't find any useful info after I
ran 'man smbcontrol',  could you give us a clearer answer. Thanks.



Yours Adam
 
From: Rowland Penny via samba
Date: 2018-06-20 17:40
To: samba
Subject: Re: [Samba] hosts allow option is not applaying without restart smbd
On Wed, 20 Jun 2018 16:22:36 +0700
Vladimir Eltsov via samba <samba at lists.samba.org> wrote:
 
> Hello.
> 
> I have a lot of servers with CentOS 7 and samba 4 (classic domain
> controllers), differnt versions (4.4.4, 4.6.2...).
> 
> I have found that changes hosts allow option are not applaying without
> restart smbd.
> 
> I have tried:
> systemctl reload smbd.service
> killall -1 smbd
> pkill -HUP smbd
> smbcontrol smbd reload-config
> 
> but client I have added does not have access.
> 
> I see strange messages in system log:
> 
> Jun 20 15:50:20 nvkzsrv smbd[29943]: [2018/06/20 15:50:20.705223,  0]
> ../source3/lib/access.c:338(allow_access)
> Jun 20 15:50:20 nvkzsrv smbd[29943]:  Denied connection from
> 192.168.36.36 (192.168.36.36)
> 
> Where 192.168.36.36 is an address I have added in hosts allow.
> 
> Changes are applaying when I restart smbd, but I can not do it while
> there are a lot of opened files on servers.
> 
> Can someone explain me what does it mean?
> 
> How can I applay changes without restart smbd?
> 
> 
> Thanks in advance.
> 
 
run 'man smbcontrol'
 
Rowland
 
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