zabbix-users — For general discussions

[Zabbix-users] Installing Zabbix 7.4 on Ubuntu 24.04.3 LTS Linux Server

[Turritopsis D. T. En M. <teo...@pr...>]

Subject: Installing Zabbix 7.4 on Ubuntu 24.04.3 LTS Linux Server

Good day from Singapore,

Author: Mr. Turritopsis Dohrnii Teo En Ming
Country: Singapore
Date: 22 Oct 2025 Wednesday
Time: 10.30 PM

I have successfully installed Zabbix 7.4 on Ubuntu 24.04.3 LTS Linux server. Please refer to the detailed installation steps below.

Detailed installation steps
==============================

Login to your Ubuntu Linux virtual private server (VPS) as root.

# wget https://repo.zabbix.com/zabbix/7.4/release/ubuntu/pool/main/z/zabbix-release/zabbix-release_latest_7.4+ubuntu24.04_all.deb

# dpkg -i zabbix-release_latest_7.4+ubuntu24.04_all.deb

# apt update

# apt install zabbix-server-mysql zabbix-frontend-php zabbix-apache-conf zabbix-sql-scripts zabbix-agent

# apt install mariadb-server mariadb-client

# mariadb-secure-installation

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user. If you've just installed MariaDB, and
haven't set the root password yet, you should just press enter here.

Enter current password for root (enter for none):
OK, successfully used password, moving on...

Setting the root password or using the unix_socket ensures that nobody
can log into the MariaDB root user without the proper authorisation.

You already have your root account protected, so you can safely answer 'n'.

Switch to unix_socket authentication [Y/n] n
 ... skipping.

You already have your root account protected, so you can safely answer 'n'.

Change the root password? [Y/n] Y
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
 ... Success!


By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] Y
 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] Y
 ... Success!

By default, MariaDB comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] Y
 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] Y
 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!

# systemctl status MariaDB

# systemctl enable MariaDB

# mariadb --version

mariadb  Ver 15.1 Distrib 10.11.13-MariaDB, for debian-linux-gnu (x86_64) using  EditLine wrapper

# mysql -uroot -p

mysql> create database zabbix character set utf8mb4 collate utf8mb4_bin;
mysql> create user zabbix@localhost identified by 'password';
mysql> grant all privileges on zabbix.* to zabbix@localhost;
mysql> set global log_bin_trust_function_creators = 1;
mysql> quit;

# zcat /usr/share/zabbix/sql-scripts/mysql/server.sql.gz | mysql --default-character-set=utf8mb4 -uzabbix -p Zabbix

# mysql -uroot -p

mysql> set global log_bin_trust_function_creators = 0;
mysql> quit;

Edit file /etc/zabbix/zabbix_server.conf

# nano /etc/zabbix/zabbix_server.conf

DBPassword=password

# systemctl restart zabbix-server zabbix-agent apache2

# systemctl enable zabbix-server zabbix-agent apache2

The default URL for Zabbix UI when using Apache web server is http://host/zabbix

If you want to use the Linux command "netstat -anp":

# apt install net-tools

Zabbix error message
=====================

Google AI output:

The message "Zabbix server:zabbix[connector_queue] became not supported: connector is not initialized: please check 'StartConnectors' configuration parameter" indicates that the Zabbix server is unable to collect data related to the connector queue because the Zabbix connectors are not running or properly configured.

To resolve this issue, perform the following steps:
Locate the Zabbix Server Configuration File: The Zabbix server configuration file is typically named zabbix_server.conf and its location can vary depending on the operating system and installation method. Common locations include /etc/zabbix/zabbix_server.conf or /usr/local/etc/zabbix_server.conf.
Edit the zabbix_server.conf File: Open the zabbix_server.conf file with a text editor and locate the StartConnectors parameter.
Enable Connectors: Ensure that the StartConnectors parameter is uncommented and set to a value greater than 0. This value determines the number of connector processes that Zabbix will start. For example:

StartConnectors=1

You may need to adjust the number based on the expected load and the number of integrations utilizing connectors.
Save Changes and Restart Zabbix Server: Save the modifications to the zabbix_server.conf file and then restart the Zabbix server service for the changes to take effect. The command to restart the service varies depending on your operating system:

systemd-based systems (e.g., Ubuntu, CentOS 7+):

sudo systemctl restart zabbix-server

SysVinit-based systems (e.g., older CentOS/Red Hat):

sudo service zabbix-server restart

After restarting the Zabbix server, the zabbix[connector_queue] item should become supported, and Zabbix will begin collecting data from the connectors. If the issue persists, review the Zabbix server logs for any additional error messages that might provide further insights.

Configure the uncomplicated firewall (ufw) on Ubuntu linux server to accept incoming connections on TCP port 80 (HTTP).

# ufw allow 80/tcp
# ufw reload

Default Zabbix username and password
=======================================

Default Zabbix username is Admin
Default Zabbix password is zabbix

Change the default password immediately after you login.

That's all.

Thank you.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Singapore
22 Oct 2025 Wednesday 11.00 PM

Re: [Zabbix-users] Linux OS Selection for Zabbix 7.4

[Volker F. <vol...@gm...>]

Am 17.10.25 um 07:10 schrieb Turritopsis Dohrnii Teo En Ming via 
Zabbix-users:
> Subject: Linux OS Selection for Zabbix 7.4
> 
> Good day from Singapore,
> 
> May I know which Linux OS is more popular for installing Zabbix 7.4?
> 
> There are too many choices. I can't decide.
> 
> Looking forward to your reply.
> 
> Thank you.
> 
> Regards,
> 
> Mr. Turritopsis Dohrnii Teo En Ming
> Singapore
> 17 Oct 2025 Friday

You can have a look at what zabbix.com provides packages for 
https://repo.zabbix.com/zabbix/7.4/stable/ or consider distribution 
packages instead.

Use whichever distribution you know the best or what's most common in 
your company! It really doesn't make a big difference for Zabbix itself, 
if you ask me.

Volker

> 
> 
> 
> 
> 
> 
> 
> _______________________________________________
> Zabbix-users mailing list
> Zab...@li...
> https://lists.sourceforge.net/lists/listinfo/zabbix-users

[Zabbix-users] Linux OS Selection for Zabbix 7.4

[Turritopsis D. T. En M. <teo...@pr...>]

Subject: Linux OS Selection for Zabbix 7.4

Good day from Singapore,

May I know which Linux OS is more popular for installing Zabbix 7.4?

There are too many choices. I can't decide.

Looking forward to your reply.

Thank you.

Regards,

Mr. Turritopsis Dohrnii Teo En Ming
Singapore
17 Oct 2025 Friday

Re: [Zabbix-users] Log Item

[Gustavo G. <gus...@cu...>]

Hallo  roughnecks.

Looks like you did not understand the function last well enough.
in the trigger expression you are asking for th 10th value, not the last 10
values.

Looks like you want to count the occurrences of error in te log, you should
use the logrt.count kw instead and also may be you should improve the
regular expression.

Hope

Regards

El jue, 26 jun 2025 a la(s) 5:18 a.m., roughnecks via Zabbix-users (
zab...@li...) escribió:

> Hello,
>
> I'm trying to figure out mail logging, using the log item. I would like
> to receive advice about an example item/trigger to catch errors in
> postfix/dovecot, on a debian stable host.
>
> I'm attaching a couple screenshots of what I already tried, without good
> results.
>
> Thanks
>
> --
> roughnecks
> _______________________________________________
> Zabbix-users mailing list
> Zab...@li...
> https://lists.sourceforge.net/lists/listinfo/zabbix-users
>


-- 

*Gustavo Guido*

 +598 99 286 741 | gus...@cu... <sol...@cu...>

Bv. España 2253  | CP 11200 | MVD/UY

*/*custos*.*uy <https://custos.uy/>Custos Monitoring
<https://uy.linkedin.com/company/custos-monitoring>  Zabbix (Es)
<https://t.me/+SczcNbS_mogJg1fU>

Re: [Zabbix-users] Log Item

[roughnecks <rou...@wo...>]

Il 27/06/2025 22:06, Gustavo Guido ha scritto:

> Looks like you did not understand the function last well enough.
> in the trigger expression you are asking for th 10th value, not the last 
> 10 values.
> 
> Looks like you want to count the occurrences of error in te log, you 
> should use the logrt.count kw instead and also may be you should improve 
> the regular expression.

Thanks!

[Zabbix-users] Log Item

[roughnecks <rou...@wo...>]

Hello,

I'm trying to figure out mail logging, using the log item. I would like 
to receive advice about an example item/trigger to catch errors in 
postfix/dovecot, on a debian stable host.

I'm attaching a couple screenshots of what I already tried, without good 
results.

Thanks

-- 
roughnecks

[Zabbix-users] Discovery Rule & Action assigning wrong SNMP version to host

[Jim L. <li...@cm...>]

List,

I'm grasping at straws now...  I've tried using Discord (no response) and I don't care to setup yet another app (Telegram) to talk with support...

Old school mailing lists to the rescue.  I hope...

I have a question about the Zabbix Discovery Rule process and how it attempts to detect and assign the correct SNMP version of a discovered device to a host.

I currently have 65 Discovery Rules.  Each of which are identical, with the exception of the network IP range assigned.

There are 9 checks in total.  8 are SNMPv1 and 1 is SNMPv2.  Each with a unique OID it is checking for.

Over a year ago we upgraded Zabbix from 5.X to 6.0.3.  Ever since that upgrade we have had a rather odd issue of Zabbix detecting & assigning the wrong SNMP version to some hosts.  It is not random as it is consistently happening to the same hosts over and over again.  Each time the related Discovery Rule is processed.  It has become a daily routine to check this and switch the hosts back to the correct SNMP version.

First off, the SNMPv1 OIDs being checked for are only available in the SNMPv1 devices and the SNMPv2 OID being checked for only exists in the SNMPv2 device.

Out of almost 7000 hosts, I found about 15 are being assigned SNMPv2 and 2 are being assigned SNMPv1.

Now, for the host that are being assigned SNMPv2, I'm not sure how the system could even think they are available via SNMPv2 as these devices only support SNMPv1.

And for the hosts being assigned the SNMPv1 that should be SNMPv2, that is a little more possible, but still problematic as the values for the OIDs I want to monitor in the assigned template are only available if SNMPv2 is in use.

I removed the SNMPv2 OID check in the associated Discovery Rule check and it stopped the assignment of SNMPv2 to those related devices.

My question is, when does the SNMP version get assigned to a new host?  Is it done by the Discovery Rule or the Discovery Action?  As there isn't any option to set the SNMP version, I assume the version is discovered by the Discovery Rule and assigned to the host by the Discovery Action.

Any clarification of this would be greatly appreciated!

Any advise as to how to prevent this from happening would be even better.

Thank you for your time.

--
Jim Lucas
C - 5414085189
H - 5413234219
http://cmsws.com

Re: [Zabbix-users] Migrating users/usergroups

[Gustavo G. <gus...@cu...>]

There are some fields like userid, groupid etc that will get you in some
trouble.

El jue, 27 oct 2022 a las 10:42, Ted Serreyn (<te...@se...>) escribió:

> Why not just dump and restore the database section?
>
> you can split the sql tables up to isolate the users if needed.
>
>
>
> On 10/27/22, 06:35, "Roy Sigurd Karlsbakk via Zabbix-users" <
> zab...@li...> wrote:
>
>     Hi all
>
>     How can I migrate users from one zabbix system to another? Some say
> 'Use the API', but that's a rather large task. Anyone that knows a way to
> do this easy?
>
>     Vennlig hilsen
>
>     roy
>     --
>     Roy Sigurd Karlsbakk
>     (+47) 98013356
>     --
>     I all pedagogikk er det essensielt at pensum presenteres
> intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå
> eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste tilfeller
> eksisterer adekvate og relevante synonymer på norsk.
>
>
>     _______________________________________________
>     Zabbix-users mailing list
>     Zab...@li...
>     https://lists.sourceforge.net/lists/listinfo/zabbix-users
>
>
> _______________________________________________
> Zabbix-users mailing list
> Zab...@li...
> https://lists.sourceforge.net/lists/listinfo/zabbix-users
>


-- 
[image: Custos Monitoring] <http://custos.uy/>

Gustavo Guido  Director

Zabbix Certified Trainer

+598 99 286 741

custos.uy Telegram: Zabbix Español <https://t.me/zabbixespanol>

LinkEdn <https://www.linkedin.com/company/custos-monitoring>

Re: [Zabbix-users] Migrating users/usergroups

[Gustavo G. <gus...@cu...>]

Hi. Roy

Here are some thoughts.

What do you want to export ? just the names of the users? the passwd ? the
other properties like language, time zone etc.
There are many other things that are too much entangled, like user groups,
roles and the rights to read/write over hostgroups, and thouse which hosts
are in those groups. You should consider all that.

Big Hug




El jue, 27 oct 2022 a las 8:34, Roy Sigurd Karlsbakk via Zabbix-users (<
zab...@li...>) escribió:

> Hi all
>
> How can I migrate users from one zabbix system to another? Some say 'Use
> the API', but that's a rather large task. Anyone that knows a way to do
> this easy?
>
> Vennlig hilsen
>
> roy
> --
> Roy Sigurd Karlsbakk
> (+47) 98013356
> --
> I all pedagogikk er det essensielt at pensum presenteres intelligibelt.
> Det er et elementært imperativ for alle pedagoger å unngå eksessiv
> anvendelse av idiomer med xenotyp etymologi. I de fleste tilfeller
> eksisterer adekvate og relevante synonymer på norsk.
>
>
> _______________________________________________
> Zabbix-users mailing list
> Zab...@li...
> https://lists.sourceforge.net/lists/listinfo/zabbix-users
>


-- 
[image: Custos Monitoring] <http://custos.uy/>

Gustavo Guido  Director

Zabbix Certified Trainer

+598 99 286 741

custos.uy Telegram: Zabbix Español <https://t.me/zabbixespanol>

LinkEdn <https://www.linkedin.com/company/custos-monitoring>

Re: [Zabbix-users] Migrating users/usergroups

[Ted S. <te...@se...>]

Why not just dump and restore the database section?

you can split the sql tables up to isolate the users if needed.



On 10/27/22, 06:35, "Roy Sigurd Karlsbakk via Zabbix-users" <zab...@li...> wrote:

    Hi all

    How can I migrate users from one zabbix system to another? Some say 'Use the API', but that's a rather large task. Anyone that knows a way to do this easy?

    Vennlig hilsen

    roy
    --
    Roy Sigurd Karlsbakk
    (+47) 98013356
    --
    I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk.


    _______________________________________________
    Zabbix-users mailing list
    Zab...@li...
    https://lists.sourceforge.net/lists/listinfo/zabbix-users

Re: [Zabbix-users] Migrating users/usergroups

[Roy S. K. <ro...@ka...>]

Seems we had a guy that knows a bit more of python and such than I do, so he made some stuff. We'll just clean up the code before sharing it.

Vennlig hilsen

roy
--
Roy Sigurd Karlsbakk
(+47) 98013356
--
I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk.

----- Original Message -----
> From: "Ted Serreyn" <te...@se...>
> To: "Roy Sigurd Karlsbakk" <ro...@ka...>, "zabbix-users" <zab...@li...>
> Sent: Thursday, 27 October, 2022 15:26:13
> Subject: Re: [Zabbix-users] Migrating users/usergroups

> Why not just dump and restore the database section?
> 
> you can split the sql tables up to isolate the users if needed.
> 
> 
> 
>On 10/27/22, 06:35, "Roy Sigurd Karlsbakk via Zabbix-users"
><zab...@li...> wrote:
> 
>    Hi all
> 
>    How can I migrate users from one zabbix system to another? Some say 'Use the
>    API', but that's a rather large task. Anyone that knows a way to do this easy?
> 
>    Vennlig hilsen
> 
>    roy
>    --
>    Roy Sigurd Karlsbakk
>    (+47) 98013356
>    --
>    I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er
>    et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av
>    idiomer med xenotyp etymologi. I de fleste tilfeller eksisterer adekvate og
>    relevante synonymer på norsk.
> 
> 
>    _______________________________________________
>    Zabbix-users mailing list
>    Zab...@li...
>     https://lists.sourceforge.net/lists/listinfo/zabbix-users

[Zabbix-users] Migrating users/usergroups

[Roy S. K. <ro...@ka...>]

Hi all

How can I migrate users from one zabbix system to another? Some say 'Use the API', but that's a rather large task. Anyone that knows a way to do this easy?

Vennlig hilsen

roy
--
Roy Sigurd Karlsbakk
(+47) 98013356
--
I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk.

Re: [Zabbix-users] how to build an item to count items?

[Guus S. <gsn...@gm...>]

Op di 31 mei 2022 11:22 schreef henri hemery <hen...@gm...>:

> Hi!
>
> I am a Network admin and I'm using zabbix since 4 years now in my comapny,
> and it is a great tool, love it. I am running under 4.4 version, but we
> will soon upgrade it to 6.
> I monitor around 300 devices .
> Now I would like to use zabbix for our switches capacity planning.
> So from LLD, I got my switches interfaces operationnal status, key is
> net.if.status[ifOperStatus.1] to net.if.status[ifOperStatus.243]. value can
> be up (1) or down (2)
>

I see 2 options: if you have the interface status available in Zabbix, then
you could query the database itself.

Or you could use an external tool like netdisco: the website looks a bit
dated, but I had surprisingly good results from this one. Even with (only)
readonly SNMP.



Mvg, Guus Snijders

Re: [Zabbix-users] how to build an item to count items?

[Roy S. K. <ro...@ka...>]

I don't think zabbix can do this by itself, but again, it should be trivial to do it with an external script, using snmpwalk or even some library in perl/python/whateveryoufancy 

Vennlig hilsen 

roy 
-- 
Roy Sigurd Karlsbakk 
(+47) 98013356 
http://blogg.karlsbakk.net/ 
GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt 
-- 
Hið góða skaltu í stein höggva, hið illa í snjó rita. 

> From: "henri hemery" <hen...@gm...>
> To: "zabbix-users" <zab...@li...>
> Sent: Monday, 30 May, 2022 14:07:55
> Subject: [Zabbix-users] how to build an item to count items?

> Hi!

> I am a Network admin and I'm using zabbix since 4 years now in my comapny, and
> it is a great tool, love it. I am running under 4.4 version, but we will soon
> upgrade it to 6.
> I monitor around 300 devices .
> Now I would like to use zabbix for our switches capacity planning.
> So from LLD, I got my switches interfaces operationnal status, key is
> net.if.status[ifOperStatus.1] to net.if.status[ifOperStatus.243]. value can be
> up (1) or down (2)
> I would like to create a calculated item that will divide the total number of
> interfaces by the number of up interfaces.
> I am struggling to find a solution without success, could you guys help me to
> find the solution.
> Thanks for your help.

> _______________________________________________
> Zabbix-users mailing list
> Zab...@li...
> https://lists.sourceforge.net/lists/listinfo/zabbix-users

[Zabbix-users] how to build an item to count items?

[henri h. <hen...@gm...>]

Hi!

I am a Network admin and I'm using zabbix since 4 years now in my comapny,
and it is a great tool, love it. I am running under 4.4 version, but we
will soon upgrade it to 6.
I monitor around 300 devices .
Now I would like to use zabbix for our switches capacity planning.
So from LLD, I got my switches interfaces operationnal status, key is
net.if.status[ifOperStatus.1] to net.if.status[ifOperStatus.243]. value can
be up (1) or down (2)
I would like to create a calculated item that will divide the total number
of interfaces by the number of up interfaces.
I am struggling to find a solution without success, could you guys help me
to find the solution.
Thanks for your help.

[Zabbix-users] Grouping alerts in the GUI per host

[Roy S. K. <ro...@ka...>]

Hi all

With alterts on several hosts, sometimes the alterted host is mentioned several times, sine Zabbix doesn't have a way to conclude that if a host is down, it shouldn't need to check its services (this, as opposed to other systems, like Nagios etc). This has been sought after for quite some time now and doesn't seem to happen any time soon.

So, in the meantime, would it be possible to add to the GUI a way to sort or group hosts as to clean up the view? Think of something like this:

> hostname
  - Error: Disk full
  - Warning: Annoying stuff
  - Information: I'm bored

Sorting the hosts would be useful anyway, though, like adding a link to the hostname and just sorting by that like is normal other places

Vennlig hilsen / Best regards

roy
--
Roy Sigurd Karlsbakk
(+47) 98013356
http://blogg.karlsbakk.net/
GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt
--
I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk.

[Zabbix-users] Kubernetes monitoring?

[Victor S. <va...@si...>]

Dear Colleagues,

Is anyone using the new Kubernetes monitoring templates in Zabbix 6.0? 

The documentation is not really complete
https://support.zabbix.com/browse/ZBX-20873
so if anyone has a success story, can you please share?

-- 
Victor Sudakov VAS4-RIPE
http://vas.tomsk.ru/
2:5005/49@fidonet

Re: [Zabbix-users] Zabbix 5.4 email alerts and SMTP configuration

[Guus S. <gsn...@gm...>]

Op di 17 mei 2022 08:06 schreef Jeff Cold <sc...@un...>:

>
> "We use Zabbix 5.4 inside a VPN.  We have our own Postfix email server
> inside that VPN that forwards email to a campus email server outside
> the VPN.  To do aliasing we've set up a bogus domain recognized by our
> Postfix server different from the proper domain in the SMTP helo field
> in Zabbix.  Sending email to alert@[bogus_domain] gets resolved and works
> from the CLI.  Sending email based on an event from Zabbix, gets rejected
> by the campus email server because the SMTP helo domain and bogus_domain do
> not match.  Has anyone tried something similar and had it work?"
>

Apologies first: I haven't tried this for myself.

It appears that your Zabbix server tries to deliver the alert mails
directly to your campus mail server, instead of your postfix server.

I see 2 options, both in your Zabbix config
- let Zabbix to use your postfix server (instead of direct delivery)
- fix the SMTP helo for Zabbix (so direct delivery works, even when postfix
is down)

Another option would be to have the Campus mailserver to whitelist the
zabbix server, but that's probably the harder way :).

An even better option: use authenticated SMTP (submission). The Campus
mailserver will be a lot more cooperative :).
You'd still need to watch the sender mailbox for errors and bounces, though.


Mvg, Guus Snijders

[Zabbix-users] Zabbix 5.4 email alerts and SMTP configuration

[Jeff C. <sc...@un...>]

"We use Zabbix 5.4 inside a VPN.  We have our own Postfix email server
inside that VPN that forwards email to a campus email server outside
the VPN.  To do aliasing we've set up a bogus domain recognized by our
Postfix server different from the proper domain in the SMTP helo field
in Zabbix.  Sending email to alert@[bogus_domain] gets resolved and works
from the CLI.  Sending email based on an event from Zabbix, gets rejected
by the campus email server because the SMTP helo domain and bogus_domain do
not match.  Has anyone tried something similar and had it work?"

Jeff

Re: [Zabbix-users] Zabbix - Distributed installation over Docker

[Shawn B. <sh...@ba...>]

I would like to add that I believe the prefered method for larger
environments is run most of the host a Zabbix proxy letting the proxy do
most of the heavy lifting.
In a large environment I would use the following layout:

   - Web server as a docker container will all my other internal web servers
   - Postgress DB on a seperate server with high IO capable file system
   behind it
   - Zabbix server running in a container with a few other Zabbix proxies
   running on the same server depending on the load.
   - Several other Zabbix proxies running in the various subnets

This of course all depends on the number of checks you are doing. you can
have a 1000 host being monitored with only a few infrequent checks and
still technically have a "large" environment. You can also have a 100 host
with a bunch of frequent checks on them and easily overload you servers.

Just my 2 cents on it.


On Tue, May 3, 2022 at 8:32 AM Roberto Carna <rob...@gm...>
wrote:

> Dear Shawn,
>
> You said you probably do this:
>
> Host#1 with Docker: image Zabbix server + image Web Apache
> Host#2 without Docker: MySQL server
>
> Do you recommend using a MySQL server without Docker for performance
> issues?
>
> Any else to add?
>
> Special thanks!
>
> El mié, 20 abr 2022 a las 9:22, Shawn Heisey (<za...@el...>)
> escribió:
> >
> > On 4/19/22 07:26, Roberto Carna wrote:
> > > But in the near future, we want to migrate to Zabbix over Docker. I
> > > could see lots of tutorials for Zabbix installation over Docker, but
> > > all of them talk about installing the three components (zabbix server,
> > > mysql and apache) in the same Docker host.
> >
> > It looks like it's pretty straightforward to separate these components
> > into their own containers:
> >
> > https://hub.docker.com/r/zabbix/zabbix-server-mysql/
> > https://hub.docker.com/r/zabbix/zabbix-web-apache-mysql/
> >
> > The server container lets you link to a mysql host.  The web service
> > container lets you link to a zabbix server and a mysql host.
> >
> > I have a zabbix 6.0.2 install set up on a bare metal Ubuntu server.  If
> > I was going to do a docker install on separate hosts, I would probably
> > install the server and web service containers together on one host, and
> > mysql on another, serving as the database for zabbix as well as other
> > things.
> >
> > TL;DR note:  All my web services are accessed through an install of
> > haproxy.  It handles SSL, and all the connections to back end services
> > are plaintext.  The zabbix frontend is only one of several virtualhosts
> > in my Apache install, and I have other backend services.  Apache,
> > gitlab, and plex are on the same server as haproxy, and I have a pair of
> > pi units with Apache as well. https://raspi.elyograg.org
> >
> > Using haproxy lets me have all these scattered services accessible
> > through the one public IP address that I get from my home ISP.
> >
> > Thanks,
> > Shawn
> >
> >
> >
> > _______________________________________________
> > Zabbix-users mailing list
> > Zab...@li...
> > https://lists.sourceforge.net/lists/listinfo/zabbix-users
>
>
> _______________________________________________
> Zabbix-users mailing list
> Zab...@li...
> https://lists.sourceforge.net/lists/listinfo/zabbix-users
>

Re: [Zabbix-users] Zabbix - Distributed installation over Docker

[Roberto C. <rob...@gm...>]

Dear Shawn,

You said you probably do this:

Host#1 with Docker: image Zabbix server + image Web Apache
Host#2 without Docker: MySQL server

Do you recommend using a MySQL server without Docker for performance issues?

Any else to add?

Special thanks!

El mié, 20 abr 2022 a las 9:22, Shawn Heisey (<za...@el...>) escribió:
>
> On 4/19/22 07:26, Roberto Carna wrote:
> > But in the near future, we want to migrate to Zabbix over Docker. I
> > could see lots of tutorials for Zabbix installation over Docker, but
> > all of them talk about installing the three components (zabbix server,
> > mysql and apache) in the same Docker host.
>
> It looks like it's pretty straightforward to separate these components
> into their own containers:
>
> https://hub.docker.com/r/zabbix/zabbix-server-mysql/
> https://hub.docker.com/r/zabbix/zabbix-web-apache-mysql/
>
> The server container lets you link to a mysql host.  The web service
> container lets you link to a zabbix server and a mysql host.
>
> I have a zabbix 6.0.2 install set up on a bare metal Ubuntu server.  If
> I was going to do a docker install on separate hosts, I would probably
> install the server and web service containers together on one host, and
> mysql on another, serving as the database for zabbix as well as other
> things.
>
> TL;DR note:  All my web services are accessed through an install of
> haproxy.  It handles SSL, and all the connections to back end services
> are plaintext.  The zabbix frontend is only one of several virtualhosts
> in my Apache install, and I have other backend services.  Apache,
> gitlab, and plex are on the same server as haproxy, and I have a pair of
> pi units with Apache as well. https://raspi.elyograg.org
>
> Using haproxy lets me have all these scattered services accessible
> through the one public IP address that I get from my home ISP.
>
> Thanks,
> Shawn
>
>
>
> _______________________________________________
> Zabbix-users mailing list
> Zab...@li...
> https://lists.sourceforge.net/lists/listinfo/zabbix-users

Re: [Zabbix-users] Zabbix - Distributed installation over Docker

[Roberto C. <rob...@gm...>]

In other words:

What is the Zabbix + Docker solution for large environments?

Host1 Docker with Web Frontend + Zabbix server
Host2 MySQL (without Docker)

or what ?

Thanks

El mié, 20 abr 2022 a las 9:48, Roberto Carna
(<rob...@gm...>) escribió:
>
> Dear all, at first I had only one server with Zabbix service, frontend
> web and mysql. But when the quantity of hosts increased, the server
> had performance problems and we decided to separate the solution into
> three independent servers, and everything was OK.
>
> Following the above criteria, I think it's a good practice to deploy
> three independent servers, each one with docker and a container
> (zabbix service, frontend web and mysql). We've decided to change to
> Docker because we have testing and production environments, and we
> have to enter the Docker world.
>
> Is my idea ok? Or do you recommend to me just one Docker host and the
> three containers on it? In this case, is there any risk of having
> performance problems as I have in my first implementation as I told
> you? Because we have a large quantity of hosts to monitor.
>
> Special thanks !!!
>
> El mié, 20 abr 2022 a las 9:22, Shawn Heisey (<za...@el...>) escribió:
> >
> > On 4/19/22 07:26, Roberto Carna wrote:
> > > But in the near future, we want to migrate to Zabbix over Docker. I
> > > could see lots of tutorials for Zabbix installation over Docker, but
> > > all of them talk about installing the three components (zabbix server,
> > > mysql and apache) in the same Docker host.
> >
> > It looks like it's pretty straightforward to separate these components
> > into their own containers:
> >
> > https://hub.docker.com/r/zabbix/zabbix-server-mysql/
> > https://hub.docker.com/r/zabbix/zabbix-web-apache-mysql/
> >
> > The server container lets you link to a mysql host.  The web service
> > container lets you link to a zabbix server and a mysql host.
> >
> > I have a zabbix 6.0.2 install set up on a bare metal Ubuntu server.  If
> > I was going to do a docker install on separate hosts, I would probably
> > install the server and web service containers together on one host, and
> > mysql on another, serving as the database for zabbix as well as other
> > things.
> >
> > TL;DR note:  All my web services are accessed through an install of
> > haproxy.  It handles SSL, and all the connections to back end services
> > are plaintext.  The zabbix frontend is only one of several virtualhosts
> > in my Apache install, and I have other backend services.  Apache,
> > gitlab, and plex are on the same server as haproxy, and I have a pair of
> > pi units with Apache as well. https://raspi.elyograg.org
> >
> > Using haproxy lets me have all these scattered services accessible
> > through the one public IP address that I get from my home ISP.
> >
> > Thanks,
> > Shawn
> >
> >
> >
> > _______________________________________________
> > Zabbix-users mailing list
> > Zab...@li...
> > https://lists.sourceforge.net/lists/listinfo/zabbix-users

Re: [Zabbix-users] Zabbix - Distributed installation over Docker

[Roberto C. <rob...@gm...>]

Dear all, at first I had only one server with Zabbix service, frontend
web and mysql. But when the quantity of hosts increased, the server
had performance problems and we decided to separate the solution into
three independent servers, and everything was OK.

Following the above criteria, I think it's a good practice to deploy
three independent servers, each one with docker and a container
(zabbix service, frontend web and mysql). We've decided to change to
Docker because we have testing and production environments, and we
have to enter the Docker world.

Is my idea ok? Or do you recommend to me just one Docker host and the
three containers on it? In this case, is there any risk of having
performance problems as I have in my first implementation as I told
you? Because we have a large quantity of hosts to monitor.

Special thanks !!!

El mié, 20 abr 2022 a las 9:22, Shawn Heisey (<za...@el...>) escribió:
>
> On 4/19/22 07:26, Roberto Carna wrote:
> > But in the near future, we want to migrate to Zabbix over Docker. I
> > could see lots of tutorials for Zabbix installation over Docker, but
> > all of them talk about installing the three components (zabbix server,
> > mysql and apache) in the same Docker host.
>
> It looks like it's pretty straightforward to separate these components
> into their own containers:
>
> https://hub.docker.com/r/zabbix/zabbix-server-mysql/
> https://hub.docker.com/r/zabbix/zabbix-web-apache-mysql/
>
> The server container lets you link to a mysql host.  The web service
> container lets you link to a zabbix server and a mysql host.
>
> I have a zabbix 6.0.2 install set up on a bare metal Ubuntu server.  If
> I was going to do a docker install on separate hosts, I would probably
> install the server and web service containers together on one host, and
> mysql on another, serving as the database for zabbix as well as other
> things.
>
> TL;DR note:  All my web services are accessed through an install of
> haproxy.  It handles SSL, and all the connections to back end services
> are plaintext.  The zabbix frontend is only one of several virtualhosts
> in my Apache install, and I have other backend services.  Apache,
> gitlab, and plex are on the same server as haproxy, and I have a pair of
> pi units with Apache as well. https://raspi.elyograg.org
>
> Using haproxy lets me have all these scattered services accessible
> through the one public IP address that I get from my home ISP.
>
> Thanks,
> Shawn
>
>
>
> _______________________________________________
> Zabbix-users mailing list
> Zab...@li...
> https://lists.sourceforge.net/lists/listinfo/zabbix-users

Re: [Zabbix-users] Zabbix - Distributed installation over Docker

[Shawn H. <za...@el...>]

On 4/19/22 07:26, Roberto Carna wrote:
> But in the near future, we want to migrate to Zabbix over Docker. I
> could see lots of tutorials for Zabbix installation over Docker, but
> all of them talk about installing the three components (zabbix server,
> mysql and apache) in the same Docker host.

It looks like it's pretty straightforward to separate these components 
into their own containers:

https://hub.docker.com/r/zabbix/zabbix-server-mysql/
https://hub.docker.com/r/zabbix/zabbix-web-apache-mysql/

The server container lets you link to a mysql host.  The web service 
container lets you link to a zabbix server and a mysql host.

I have a zabbix 6.0.2 install set up on a bare metal Ubuntu server.  If 
I was going to do a docker install on separate hosts, I would probably 
install the server and web service containers together on one host, and 
mysql on another, serving as the database for zabbix as well as other 
things.

TL;DR note:  All my web services are accessed through an install of 
haproxy.  It handles SSL, and all the connections to back end services 
are plaintext.  The zabbix frontend is only one of several virtualhosts 
in my Apache install, and I have other backend services.  Apache, 
gitlab, and plex are on the same server as haproxy, and I have a pair of 
pi units with Apache as well. https://raspi.elyograg.org

Using haproxy lets me have all these scattered services accessible 
through the one public IP address that I get from my home ISP.

Thanks,
Shawn

Re: [Zabbix-users] Zabbix - Distributed installation over Docker

[Guus S. <gsn...@gm...>]

Op wo 20 apr. 2022 08:22 schreef Victor Sudakov <va...@si...>:

> Roberto Carna wrote:
> >
> > But in the near future, we want to migrate to Zabbix over Docker. I
> > could see lots of tutorials for Zabbix installation over Docker, but
> > all of them talk about installing the three components (zabbix server,
> > mysql and apache) in the same Docker host.
> >
> > For large environments like mine, do you recommend installing three
> > Docker hosts, each containing just one component of Zabbix? For
> > example, Host Docker 1 with mysql, Host Docker 2 with Apache and Host
> > Docker 3 with Zabbix server. Is there any documentation for this case?
>
> Hello Roberto,
>
> If you are going to use three Docker hosts (three physical boxes?) why
> would you want to migrate to Docker at all?
>

A wild guess would be: docker for flexibility, separate hosts for
performance?

Assuming of course that the 3 original hosts are also monitored for
performance :).  I do wonder if the load on the web and the DB hosts are
high enough to warrant being on separate hosts.



Mvg, Guus