Re: dovecot and broken uidlist

2021-01-29 Thread Tom Talpey
Well, then "noac" may be your best solution. Or tracking down the possible issue with the 5.8 kernel client. Either way, you should consider that NFSv3 will always be vulnerable to this. Remember, that protocol was standardized just over 25 years ago. On 1/29/2021 7:16 AM, Maciej Milaszewski wr

Re: dovecot and broken uidlist

2021-01-29 Thread Adrian Minta
Hi we saw the same thing with EMC Unity and LMTP. With nfs v3 the situation is somehow tolerable. First time we switch to nfs v4.1 the servers crashed and later we found out that we need to turn off delegation and switch to "lock_method = dotlock". This will help some people if is added to w

Re: dovecot and broken uidlist

2021-01-29 Thread Maciej Milaszewski
Hi Probably netapp fas8200 not support NFS 4.2 and NFS 4.1 not support auth via exports (only kerberros) On 28.01.2021 19:45, Tom Talpey wrote: > On 1/28/2021 11:14 AM, Maciej Milaszewski wrote: >> Hi >> For test I crete a new director with 2.3.13 and node 2.3.13 I mount >> storage via nfs with t

Re: dovecot and broken uidlist

2021-01-28 Thread Tom Talpey
On 1/28/2021 11:14 AM, Maciej Milaszewski wrote: Hi For test I crete a new director with 2.3.13 and node 2.3.13 I mount storage via nfs with this same options: rw,sec=sys,noexec,noatime,tcp,hard,rsize=65536,wsize=65536,intr,nordirplus,nfsvers=3,tcp,actimeo=120 I create a simple MTA and change

Re: dovecot and broken uidlist

2021-01-28 Thread Maciej Milaszewski
Hi For test I crete a new director with 2.3.13 and node 2.3.13 I mount storage via nfs with this same options: rw,sec=sys,noexec,noatime,tcp,hard,rsize=65536,wsize=65536,intr,nordirplus,nfsvers=3,tcp,actimeo=120 I create a simple MTA and change MX to thi same like director1 In kernel 5.8.0-0.bpo

Re: dovecot and broken uidlist

2021-01-22 Thread Alessio Cecchi
Hi, after some tests I notice a difference in dovecot-uidlist line format when message is read from "old kernel" and "new kernel": 81184 G1611334252.M95445P32580.mail05.myserver.com :1611334252.M95445P32580.mail05.myserver.com,S=38689,W=39290 81185 G1611336004.M47750P3921.mail01.myserver.com

Re: dovecot and broken uidlist

2021-01-22 Thread Maciej Milaszewski
Hi I using pop/imap and LMTP via director and user go back in dovecot node Current: 10.0.100.22 (expires 2021-01-22 17:42:44) Hashed: 10.0.100.22 Initial config: 10.0.100.22 I have 6 dovecot backands and index via local ssd disk mail_location = maildir:~/Maildir:INDEX=/var/dovecot_indexes%h user

Re: dovecot and broken uidlist

2021-01-22 Thread Alessio Cecchi
Hi Maciej, I'm using LDA for delivery email in mailbox (Maildir) and I think(hope) that switching to LMTP via director will fix my problem, but I d'ont know why wiht old kernel works and with recent no. Are you using POP/IMAP and LMTP via director so any update to dovecot indexes is done fro

Re: dovecot and broken uidlist

2021-01-22 Thread Maciej Milaszewski
Hi Try change kernel to older and test again On 22.01.2021 15:45, Alessio Cecchi wrote: > > Hi Claudio, > > I made a test with NFS mount with nfsvers=4.1 and CentOS 7 as NFS > client (our Netapp already have NFS 4.1 enabled) but the problem is > still present. > > More, I don't like to switch to N

Re: dovecot and broken uidlist

2021-01-22 Thread Alessio Cecchi
Hi Claudio, I made a test with NFS mount with nfsvers=4.1 and CentOS 7 as NFS client (our Netapp already have NFS 4.1 enabled) but the problem is still present. More, I don't like to switch to NFS 4 because is statefull, NFS v3 is stateless and for example during maintanace or upgrade of NFS

Re: dovecot and broken uidlist

2021-01-19 Thread Claudio Cuqui
It's a long shot..but I would try to use nfsvers=4.1 in the nfs mount option (instead of nfsvers=3) - if your netapp supports it - with a newer kernel - 4.14-stable or 4.19-stable (if possible). The reason for that, is a nasty bug found in linux nfs client with older kernels... https://about.

Re: dovecot and broken uidlist

2021-01-19 Thread Maciej Milaszewski
Hi I use lmtp and you ? On 19.01.2021 10:45, Alessio Cecchi wrote: > > Hi Maciej, > > I had the same issue when I switched dovecot backend from Cento 6 to > Centos 7. > > Also my configuration is similar to you, Dovecot Direcot, Dovecot > backend that share Maildir via NFS on NetApp. > > For local

Re: dovecot and broken uidlist

2021-01-19 Thread Alessio Cecchi
Hi Maciej, I had the same issue when I switched dovecot backend from Cento 6 to Centos 7. Also my configuration is similar to you, Dovecot Direcot, Dovecot backend that share Maildir via NFS on NetApp. For local delivery of emails are you using LDA or LMTP? I'm using LDA. Let me know. Tha

Re: dovecot and broken uidlist

2021-01-16 Thread Maciej Milaszewski IQ PL
Hi Any idea some one ? Dnia 13 stycznia 2021 15:56:18 CET, Maciej Milaszewski napisał(a): >Hi >I have been trying resolve my problem with dovecot for a few days and I >dont have idea > >My environment is: dovecot director+5 dovecot guest > >dovecot-2.2.36.4 from source >Linux 3.16.0-11-amd64

dovecot and broken uidlist

2021-01-13 Thread Maciej Milaszewski
Hi I have been trying resolve my problem with dovecot for a few days and I dont have idea My environment is: dovecot director+5 dovecot guest dovecot-2.2.36.4 from source Linux 3.16.0-11-amd64 storage via nfs (NetApp) all works fine but when I update OS from debian 8 (kernel 3.16.x) to debia