similar to: Dovecot Director and Dovecot proxy

Il 01/12/2014 17:11, rub zorghy ha scritto: > Why Dovecot Director server isn't used to perform this without Dovecot > proxy ? Thus, the load balancer (F5 Big-IP) can distribute requests based > on IMAP protocol to Dovecot Director cluster. I think that the slide is just one example of a scenario ,very complex. In real world, unless you do not have to segment users (some users use

Hi, Dovecot Director is used to keep a temporary user -> Dovecot backend server mapping. So, Director decides which backend handles each user and the user is always redirected to the same server. All user data is stored in shared storage (NFS). The Dovecot presentation featured during this webinar

Hi, I have a user model and a privilege model. They have the has_and_belongs_to_many relationship. Here are the model defs: class User < ActiveRecord::Base belongs_to :status has_and_belongs_to_many :privileges end class Privilege < ActiveRecord::Base has_and_belongs_to_many :users end Now I have a migration script to create the join table and populate a few users with some

The consensus seems to say no to RR DNS ? I am going to take that into serious consideration. With this proxy setup you describe, what would happen if HAProxy or Dovecot Proxy were to fail? I think there is no problem with many moving parts, as long as there is a backup plan in case something goes awry. My goal is slightly different, as I want to have HA available across datacenters without

I think RR DNS is the only viable solution under these circumstances. If you can cope with the fact that failovers won't be seamless, I don't think there's anything wrong with that though. On 07/21/2015 11:54 AM, Laz C. Peterson wrote: > The consensus seems to say no to RR DNS ? I am going to take that into serious consideration. > > With this proxy setup you describe, what

Round-robin DNS last I checked can be fraught with issues. While doing something else I came up with this idea: Clients --> Load Balancer(HAProxy) --> Dovecot Proxy(DP) --> Dovecot Director(DD) --> MS1 / MS2. When DP checks say user100 it'll find a host=DD-POD1 that returns two IPs, those of the two DD that sit in front of POD1. This DD pair is the only pair in the ring and

Hi, The measurements were created under the following conditions : ? operating system : Red Hat Enterprise Linux Server release 6.6 (Santiago) kernel in version 2.6.32-504.el6.x86_64 ? virtual server (VMware) with an Intel(R) Xeon(R) 4vCPU E5649 x 2,526 GHz (2 cores per virtual socket) and 4 GB RAM ? 7,200 RPM SATA 1TB (FC SAN IBM System Storage N3400) ? all file systems had been formated in

Hello erveryone, I have a question, what is the best way to take hosts out from load balancer pool when deploying a module/catalog?? In our case we use a F5 Load Balancer... anyone with experience or ideas on how to do this?? I found this module: http://forge.puppetlabs.com/puppetlabs/f5 and also this one:

Hi, following this<https://puppetlabs.com/blog/managing-f5-big-ip-network-devices-with-puppet/>tutorial, I finally made it till the part where I see the SSL cert request from my f5 load balancer. Then I signed it and configured in nodes.pp the same pool and irule as suggested in the tutorial. BUT when I run on the proxy: # puppet device --deviceconf

Hi John, Thank you for the reply. Actually it was setup like this by another member, who left the team/company recently. Now it came to me to handle that responsibility. That's how I got in to this. At present I am not able to migrate/upgrade immediately. Because it sends emails around 100K+ emails everyday and I do not want to disturb that. Coming back to your question, Actually the

Hi, we have configured userdb and passdb in the director and try to iterate all users and pass the "purge" command via doveadm proxy to port 19000 on the correct director backend host. A single purge -u username at example.org via doveadm-proxy works correctly, but iterating over some users with -A fails. Note: users/domains have been anonymized in output:

Is there any documentation on doing the ssl termination on the F5? The only thing I found is http://projects.puppetlabs.com/projects/puppet/wiki/Load_Balancing_F5 which is only providing the iRule and not suggested configurations or starting points? I currently use an F5 to load balance my puppet masters but its just a pass through and I was wondering if cookie persistence would be useful in

>>>>> "Kishore" == Kishore Potnuru <kishore.reachme at gmail.com> writes: Kishore> I have the dovecot version 2.0.9 installed on RHEL linux 6.10 Kishore> version. It's a single/standalone Live server.? You should really upgradr your setup. Kishore> Now I have created another server with the same configuration Kishore> for the resilince purpose. I

On Wed, Feb 11, 2015 at 11:44:24AM +0100, Nacho del Rey wrote: > Ok, it is becoming a nightmare ;-) > Last question Volker > > Is it possible the problem comes from a network device? > At job, we have been suffering problems with a F5 Load Balancer. It seems > that, randomly, it sets the transmission frame to 0 bytes during a while > and routing services don't work very

Hi, Director -> Backends -> NFS setup. Problem: Broken dovecot-uidlists because of our postfix LMTP delivery using a different address than the IMAP client lookups Error: Mailbox INBOX: Broken file dovecot-uidlist line 169: Invalid data: example: LMTP delivery: lmtp(info#domain.nl at mail.local) IMAP lookup: info at domain.nl doveadm director status info#domain.nl at mail.local

I have 1x proxy/director server 2x backend mail server The backend servers are using a ldap database and do not have the option to put a proxy=y value. So I put this as a default in the passdb option in the proxy/director config. When I do telnet localhost 110 on the proxy/director, I can authenticate with a test account on svr1.local 1. Will automatically all users be directed to the first

> On 6 May 2018, at 8.46, Niels Kobsch?tzki <niels at kobschaetzki.net> wrote: > > Hi, > > I have a setup with several dovecot-servers (2.2.35) and I use dovecot > proxy. I upgraded one server to 2.3.1 and got the configs fixed so far > that it started again. But when I tried to add it into the proxying > again with "doveadm director add" I see the

Hey there, I've been able to switch our mailservers over to using director to proxy logins and received email to the backend servers which store email on a shared NFS mount.? Before I did this we were having trouble with the indexes running into errors because multiple servers accessing and modifying the dovecot.index files at the same time.? I'm still seeing a small amount of this,

Something I noticed on a 2.1.7 director test cluster (two directors, three backends): 'doveadm proxy kick user' will kick all connections for that user on that director only. Any additional connections on other directors will remain active unless the command is run on all directors. Are the proxy and director sub-commands intended to be separate and distinct in their operation? If so,

Hi All, I can't get directory proxying of pop3 and imap working.? The director stuff appears to be OK - see below.?? The ldap authentication is working on the backend mail server.? I just get connection refused when I telnet to the proxy on the pop3 and imap ports.? Nothing appears to be running on the pop3 and imap ports despite the lines in the config below.? I am not sure what to do from