[Samba] Failure reporting (mixed feelings)

[Rowland Penny]

On 25/01/15 21:59, Twan Duis wrote:
> Hi there,
>
>   
> As suggested on the samba wiki, I like to report failures using samba4.
>
>   
> Story:
>
> I had setup a general Office environment using samba4 (2 servers) with AD intergrated DNS (samba internal), Zarafa mail server (Prof.), ISC dhcp with split-scope and file shares (users, profiles, data and application) for a test-case environment.  Plan was to deploy this setup for a customer  (small 25 Windows 7 PC accouting office). Backup was planned with Bacula.  The tests went well as long as the shares were on the DC's (for NTFS rights).  The customer needed 2 windows servers for specific windows Application for book keeping.
>
> Next we needed a solution for home-workers to control their PC, remotely. I implemented Guacamole a HTML5 to RDP gateway. I have added yubikey integration for security (not samba related but the AD was used for the Yubikey id storage.
>
>   
> I've done the migration of a Windows SBS 2008 server to the setup above (VMware virtual platform).  After we went to production we had a lot of failures regarding shares that were lost on clients (random clients, others had no problems). As several windows app cannot handle this 'feature'  lots of crashes and corrupted data.
>
>   
> At first we blamed the network as i appeared to be crappy before, so we replaceit, next we blamed the NAS/SAN storage as we saw in vmware datastores disapearing....  This was solve by rebooting a Thecus NAS (N5550), the OpenFiler (DELL 2950) was running for years OK so this was fine. But we replaced the Storage-network components (cables switch) to be sure.
>
>   
> We had to step away from guacamole for stability (lost connections and slow performance), not Samba4 related I think, and use MS rdp gateway server.
>
>   
> Now after 2 months we see 2 problems arise regularly:
>
> - clients still losing shares and applications that cannot handle this make people anoying.
>
> - Samba4 intergrated DNS is having problems using forwarders (Google's 8.8.8.8), as 'internet' is sometimes not working. I have added a Windows 2008 DC with DNS to solve the forwarding issue's but hope samba4 can solve this issue.....
>
>   
> I hope to bring this project to a good ending, and hope someone can shine some light on my misconfiguration as I'm on a point to switch back the shares to windows servers for stability...
>
>   
> So far i'm positive on the samba4 AD implementation, the filesharing was always great but needs some improvement now. Maybe I need to do the BIND9_DLZ DNS stuff.....
>
>   
> If someone is willing to help me out here it would be welcome, otherwise keep up the good work!
>
>   
>
>

What OS ? What version of Samba4 ? Where did you get samba4 from, OS 
package, Sernet or self compiled ?
How did you provision Samba 4 ?
How have you set dhcp up ?
Please post the smb.conf from the two DC's

Rowland