Search found 149 matches

by vavai
Tue Nov 06, 2018 2:56 pm
Forum: Administrators
Topic: Urgent Help!!! Server down due to I/O error
Replies: 8
Views: 318

Re: Urgent Help!!! Server down due to I/O error

Hi,

I/O errors means there is something wrong on a storage (virtual volume/physical storage). You can check storage status or trying to restart VM.
by vavai
Sun Nov 04, 2018 1:56 pm
Forum: Administrators
Topic: Unable to connect to the MTA
Replies: 6
Views: 411

Re: Unable to connect to the MTA

Hi Hi Tonster/Vavai, Thanks all. The SMTP hostname, zimbra.prod.colo is configured as round-robin that is already behind zimbra haproxy component. Can you please suggest is any feasible option to set less cache time in Java level, if I am not wrong. As far as I know, Zimbra proxy using Nginx, not Ha...
by vavai
Sat Nov 03, 2018 10:18 pm
Forum: Administrators
Topic: Unable to connect to the MTA
Replies: 6
Views: 411

Re: Unable to connect to the MTA

Hi Rama, I would prefer to use HAProxy (or any load balancer) with least-connection instead of round-robin. You can define all mta server on haporoxy and it wil serve as mta for your Zimbra instance. HAproxy is quite clever to binding to an active MTA server only, thus preventing inactive mta server...
by vavai
Fri Nov 02, 2018 2:08 pm
Forum: Migration
Topic: Zimbra server migration from 8.0.0_GA5434 to 8.8.9_GA_3019(Current latest)
Replies: 6
Views: 534

Re: Zimbra server migration from 8.0.0_GA5434 to 8.8.9_GA_3019(Current latest)

Hi, Hi, While checking I can see that its a paid service and they almost charge around 8$ per mailbox. Is there any alternative way. Thank you Zextras migration tools is free. It can be use to export data from source Zimbra server and then using Zextras backup (Fully featured 30-day free trial) to i...
by vavai
Fri Nov 02, 2018 1:33 pm
Forum: Migration
Topic: Zimbra server migration from 8.0.0_GA5434 to 8.8.9_GA_3019(Current latest)
Replies: 6
Views: 534

Re: Zimbra server migration from 8.0.0_GA5434 to 8.8.9_GA_3019(Current latest)

Hi,

The simplest solution : using Zextras migration tools. You can also applied to latest update 8.8.10

https://www.zextras.com/suite/migration-tool/
by vavai
Thu Oct 25, 2018 2:20 pm
Forum: Administrators
Topic: Zimbra slows to a crawl
Replies: 8
Views: 733

Re: Zimbra slows to a crawl

I am running ZCS 8.7.1 Community edition with about 3500 mailboxes and 5.5 TB of stored mail. Server has 32 GB RAM and 8 cores (physical box). O/S Ubuntu 12.04.5 LTS The system works fine and performance is great except that every six months of so it slows to a crawl for 3 days or so. It is si bad ...
by vavai
Tue Oct 23, 2018 9:21 pm
Forum: Administrators
Topic: Does fail2ban need iptables?
Replies: 5
Views: 462

Re: Does fail2ban need iptables?

Hi, Fail2ban need iptables to block IP suspected as spammer. You can also looking at https://forums.zimbra.org/viewtopic.php?f=15&t=65051 to see an alternative method to block brute-force attack 2FA feature from Zimbra NE can help reduce possible compromise account as it need OTP for being logge...
by vavai
Tue Oct 23, 2018 9:02 pm
Forum: Installation and Upgrade
Topic: From 8.6 (patch 11) to 8.8.
Replies: 2
Views: 415

Re: From 8.6 (patch 11) to 8.8.

Hi Rick, Two fast questions regarding an in-place upgrade from 8.6- patch 11 (single system running CentOS 6, just 5 email accounts, but "very important" shared calendars). I already have 'proxy' and 'memcached'. (1) Should I use the migration tool in some way, or just run the installer(s)...
by vavai
Tue Oct 23, 2018 11:45 am
Forum: Administrators
Topic: Postfix double-bounce and fqdn
Replies: 5
Views: 419

Re: Postfix double-bounce and fqdn

Hi, I've read what Ubuntuforums described but based on your log, double-bounce is only a result of incorrect configuration. AFAIK, Zimbra never touches main.cf manually and its content setting up by default when install. If you don't mind, you can also paste a relevant log from zimbra.log to see whi...
by vavai
Tue Oct 23, 2018 10:42 am
Forum: Administrators
Topic: Postfix double-bounce and fqdn
Replies: 5
Views: 419

Re: Postfix double-bounce and fqdn

Hi, Its main problem from this error: "Server configuration error". It should be checked what kind of configuration problem produce these error. You can find some relevant info from zimbra.log. The double bounce came as a side effect from Sender address rejected: Domain not found (in reply...

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