Zabbix Server Frontend Tutorial

A short guide to getting started with network host monitoring using Zabbix server, frontend and agent on OpenWrt, for advanced users

See also: lamp

  • An Zabbix server and frontend system running on OpenWrt which also hosts the backend PostgreSQL database.
  • The system can also monitor itself using Zabbix Agent.
  • Secured using TLS and X.509 certificates.
  • Data is stored on a block device mounted on /srv
  • A sufficiently powerful system for the number of hosts you wish to monitor.
    1. A home router is unlikely to do the job.
    2. You need storage that can be written frequently as there are many metrics which gathered, often.
    3. In addition the metrics are stored in a PostgreSQL database (which, in this guide runs on the same machine as the Zabbix server and frontend).
    4. You needs lots of storage for the data. You could easily use 200GB over time.
  • Hosts (workstations and/or servers) and/or network devices to monitor.
  • A workstation which can use the OpenWrt Imagebuilder to generate the images to be used on the OpenWrt Zabbix system. For example, a modern Linux system, or a Windows system with WSL2 installed and working.
  • A workstation capable of SSH to, and browsing, the Zabbix server.
apache
apache-error
apache-mod-deflate
apache-mod-http2
apache-mod-php8
apache-mod-ssl
apache-utils
block-mount
ca-certificates
coreutils-who
blkid
e2fsprogs
f2fs-tools
fping
getrandom
ip-bridge
logrotate
luci-light
luci-proto-ipv6
luci-ssl
oniguruma
parted
pgsql-cli
pgsql-cli-extra
pgsql-server
php8-cgi
php8-cli
php8-mod-bcmath
php8-mod-ctype
php8-mod-curl
php8-mod-dom
php8-mod-filter
php8-mod-gd
php8-mod-gettext
php8-mod-gmp
php8-mod-ldap
php8-mod-mbstring
php8-mod-openssl
php8-mod-pgsql
php8-mod-session
php8-mod-simplexml
php8-mod-sockets
php8-mod-xmlreader
php8-mod-xmlwriter
zabbix-agentd-openssl
zabbix-extra-network
zabbix-get-openssl
zabbix-server-frontend
zabbix-server-openssl
zoneinfo-all

Note: Make sure you have any drivers for stoarage you use. For example, for USB storge:

kmod-usb-storage
kmod-usb-storage-uas

When using make image be sure to include ROOTFS_PARTSIZE=“300” in the command line (this makes the root partition 300 MB instead of the default 80 MB (which is too small for the packages required for the frontend). Note: 100 MB is probably sufficient, however the author has not tested with that size of root partition, yet.

If you wish to be able to use owut or luci-attended-sysupgrade with you resulting system, see expanding_root_file_system for required configuration.

See factory_installation and the guides for your particular device.

Partition and format your storage as on any Linux system.

See fstab for configuring mount of the storage on system boot.

Prepare PostgreSQL storage as outlined in database.postgresql

Note: This is a simplified setup. For more secure configuration review documentation at https://www.zabbix.com/documentation/7.0/en/manual/best_practices/security/access_control/postgresql

  • Download the source code for Zabbix 7.0 to your workstation
  • Extract the source code on your workstation
  • On the OpenWrt Zabbix server:
    1. createuser -U postgres -h /var/run/postgresql --pwprompt zabbix and enter a password for the zabbix database user. You will need this later.
    2. createdb -U postgres -h /var/run/postgresql -O zabbix -E Unicode -T template0 zabbix
  • On your workstation, in the Zabbix source code directory:
      cd database/postgresql
      scp -O schema.sql images.sql data.sql root@<your-openwrt-zabbix-server>:
 
      cd ~
      cat schema.sql | psql -U zabbix -h /var/run/postgresql zabbix
      cat images.sql | psql -U zabbix -h /var/run/postgresql zabbix
      cat data.sql | psql -U zabbix -h /var/run/postgresql zabbix
 

Note: This is not a hardened install. For security you will likely wish to update the configuration, once you have it working.

- chown root:apache /www/zabbix - chown 0750 /www/zabbix

This way the apache service has read-only access to /www/zabbix, and no other non-root process does. In addition, uhttpd (which runs the LuCI web interface, only allows access to world-readable directories).

In order to enable the PHP CGI binaries without Apache potentially being configured for access to all files in /usr/bin, do the following:

  1. mkdir -p /etc/php-cgi
  2. ln -s /usr/bin/php*cgi /etc/php-cgi/

In the apache2.conf we will use the following snippet to control access

<Directory "/etc/php-cgi">
    AllowOverride None
    Options FollowSymlinks
    Require all granted
</Directory>

Main configuration file

1. Modify the list of modules to load to be (commented/disabled modules trimmed for legibility)

   LoadModule mpm_worker_module lib/apache2/mod_mpm_worker.so
   LoadModule authn_file_module lib/apache2/mod_authn_file.so
   LoadModule authn_core_module lib/apache2/mod_authn_core.so
   LoadModule authz_host_module lib/apache2/mod_authz_host.so
   LoadModule authz_groupfile_module lib/apache2/mod_authz_groupfile.so
   LoadModule authz_user_module lib/apache2/mod_authz_user.so
   LoadModule authz_core_module lib/apache2/mod_authz_core.so
   LoadModule access_compat_module lib/apache2/mod_access_compat.so
   LoadModule auth_basic_module lib/apache2/mod_auth_basic.so
   LoadModule socache_shmcb_module lib/apache2/mod_socache_shmcb.so
   LoadModule reqtimeout_module lib/apache2/mod_reqtimeout.so
   LoadModule filter_module lib/apache2/mod_filter.so
   LoadModule deflate_module lib/apache2/mod_deflate.so
   LoadModule mime_module lib/apache2/mod_mime.so
   LoadModule log_config_module lib/apache2/mod_log_config.so
   LoadModule env_module lib/apache2/mod_env.so
   LoadModule headers_module lib/apache2/mod_headers.so
   LoadModule setenvif_module lib/apache2/mod_setenvif.so
   LoadModule version_module lib/apache2/mod_version.so
   LoadModule ssl_module lib/apache2/mod_ssl.so
   LoadModule http2_module lib/apache2/mod_http2.so
   LoadModule unixd_module lib/apache2/mod_unixd.so
   LoadModule status_module lib/apache2/mod_status.so
   LoadModule autoindex_module lib/apache2/mod_autoindex.so
   <IfModule !mpm_prefork_module>
     LoadModule cgid_module lib/apache2/mod_cgid.so
   </IfModule>
   <IfModule mpm_prefork_module>
     LoadModule cgi_module lib/apache2/mod_cgi.so
   </IfModule>
   LoadModule dir_module lib/apache2/mod_dir.so
   LoadModule actions_module lib/apache2/mod_actions.so
   LoadModule alias_module lib/apache2/mod_alias.so
   LoadModule rewrite_module lib/apache2/mod_rewrite.so

2. Update ServerAdmin to your admin email address

3. Set ServerName to <your-server.name>:8080, using the FQDN DNS name for your server for <your-server-name>

4. Modify the following to match below (although a more secure installation may update the Require all granted directives), but leave the rest of the apache2.conf file untouched.

   DocumentRoot "/www"
   <Directory "/www/">
       RedirectMatch ^/$ /zabbix
       Options Indexes FollowSymLinks
       AllowOverride AuthConfig
       Require all granted
   </Directory>
 
   <IfModule dir_module>
       DirectoryIndex index.php index.html
   </IfModule>
 
   <Files ".ht*">
       Require all denied
   </Files>
 
   ErrorLog "/srv/log/apache2/error_log"
 
   <IfModule alias_module>
     # ScriptAlias /cgi-bin/ "/usr/share/apache2/cgi-bin/"
     ScriptAlias /php "/etc/php-cgi"
   </IfModule>
 
   <Directory "/etc/php-cgi">
     AllowOverride None
     Options FollowSymlinks
     Require all granted
   </Directory>
 
   <IfModule mime_module>
      TypesConfig /etc/apache2/mime.types
 
      AddType application/x-compress .Z
      AddType application/x-gzip .gz .tgz
 
      AddType application/x-httpd-php .php
 
   </IfModule>
 
   # Various default settings
   Include /etc/apache2/extra/httpd-default.conf
 
   # Secure (SSL/TLS) connections
   Include /etc/apache2/extra/httpd-ssl.conf
 
   Action application/x-httpd-php "/php/php-cgi"

Full sample apache.conf

Full sample apache.conf

#
    # This is the main Apache HTTP server configuration file.  It contains the
    # configuration directives that give the server its instructions.
    # See <URL:http://httpd.apache.org/docs/2.4/> for detailed information.
    # In particular, see
    # <URL:http://httpd.apache.org/docs/2.4/mod/directives.html>
    # for a discussion of each configuration directive.
    #
    # Do NOT simply read the instructions in here without understanding
    # what they do.  They're here only as hints or reminders.  If you are unsure
    # consult the online docs. You have been warned.  
    #
    # Configuration and logfile names: If the filenames you specify for many
    # of the server's control files begin with "/" (or "drive:/" for Win32), the
    # server will use that explicit path.  If the filenames do *not* begin
    # with "/", the value of ServerRoot is prepended -- so "logs/access_log"
    # with ServerRoot set to "/usr/local/apache2" will be interpreted by the
    # server as "/usr/local/apache2/logs/access_log", whereas "/logs/access_log"
    # will be interpreted as '/logs/access_log'.
 
    #
    # ServerRoot: The top of the directory tree under which the server's
    # configuration, error, and log files are kept.
    #
    # Do not add a slash at the end of the directory path.  If you point
    # ServerRoot at a non-local disk, be sure to specify a local disk on the
    # Mutex directive, if file-based mutexes are used.  If you wish to share the
    # same ServerRoot for multiple httpd daemons, you will need to change at
    # least PidFile.
    #
    ServerRoot "/usr"
 
    #
    # Mutex: Allows you to set the mutex mechanism and mutex file directory
    # for individual mutexes, or change the global defaults
    #
    # Uncomment and change the directory if mutexes are file-based and the default
    # mutex file directory is not on a local disk or is not appropriate for some
    # other reason.
    #
    # Mutex default:/var/run/apache2
 
    #
    # Listen: Allows you to bind Apache to specific IP addresses and/or
    # ports, instead of the default. See also the <VirtualHost>
    # directive.
    #
    # Change this to Listen on specific IP addresses as shown below to
    # prevent Apache from glomming onto all bound IP addresses.
    #
    #Listen 12.34.56.78:80
    #Listen 8080
 
    #
    # Dynamic Shared Object (DSO) Support
    #
    # To be able to use the functionality of a module which was built as a DSO you
    # have to place corresponding `LoadModule' lines at this location so the
    # directives contained in it are actually available _before_ they are used.
    # Statically compiled modules (those listed by `httpd -l') do not need
    # to be loaded here.
    #
    # Example:
    # LoadModule foo_module modules/mod_foo.so
    #
    #LoadModule mpm_event_module lib/apache2/mod_mpm_event.so
    #LoadModule mpm_prefork_module lib/apache2/mod_mpm_prefork.so
    LoadModule mpm_worker_module lib/apache2/mod_mpm_worker.so
    LoadModule authn_file_module lib/apache2/mod_authn_file.so
    #LoadModule authn_dbm_module lib/apache2/mod_authn_dbm.so
    #LoadModule authn_anon_module lib/apache2/mod_authn_anon.so
    #LoadModule authn_dbd_module lib/apache2/mod_authn_dbd.so
    #LoadModule authn_socache_module lib/apache2/mod_authn_socache.so
    LoadModule authn_core_module lib/apache2/mod_authn_core.so
    LoadModule authz_host_module lib/apache2/mod_authz_host.so
    LoadModule authz_groupfile_module lib/apache2/mod_authz_groupfile.so
    LoadModule authz_user_module lib/apache2/mod_authz_user.so
    #LoadModule authz_dbm_module lib/apache2/mod_authz_dbm.so
    #LoadModule authz_owner_module lib/apache2/mod_authz_owner.so
    #LoadModule authz_dbd_module lib/apache2/mod_authz_dbd.so
    LoadModule authz_core_module lib/apache2/mod_authz_core.so
    #LoadModule authnz_ldap_module lib/apache2/mod_authnz_ldap.so
    LoadModule access_compat_module lib/apache2/mod_access_compat.so
    LoadModule auth_basic_module lib/apache2/mod_auth_basic.so
    #LoadModule auth_form_module lib/apache2/mod_auth_form.so
    #LoadModule auth_digest_module lib/apache2/mod_auth_digest.so
    #LoadModule allowmethods_module lib/apache2/mod_allowmethods.so
    #LoadModule file_cache_module lib/apache2/mod_file_cache.so
    #LoadModule cache_module lib/apache2/mod_cache.so
    #LoadModule cache_disk_module lib/apache2/mod_cache_disk.so
    #LoadModule cache_socache_module lib/apache2/mod_cache_socache.so
    LoadModule socache_shmcb_module lib/apache2/mod_socache_shmcb.so
    #LoadModule socache_dbm_module lib/apache2/mod_socache_dbm.so
    #LoadModule socache_memcache_module lib/apache2/mod_socache_memcache.so
    #LoadModule socache_redis_module lib/apache2/mod_socache_redis.so
    #LoadModule watchdog_module lib/apache2/mod_watchdog.so
    #LoadModule macro_module lib/apache2/mod_macro.so
    #LoadModule dbd_module lib/apache2/mod_dbd.so
    #LoadModule dumpio_module lib/apache2/mod_dumpio.so
    #LoadModule echo_module lib/apache2/mod_echo.so
    #LoadModule buffer_module lib/apache2/mod_buffer.so
    #LoadModule data_module lib/apache2/mod_data.so
    #LoadModule ratelimit_module lib/apache2/mod_ratelimit.so
    LoadModule reqtimeout_module lib/apache2/mod_reqtimeout.so
    #LoadModule ext_filter_module lib/apache2/mod_ext_filter.so
    #LoadModule request_module lib/apache2/mod_request.so
    #LoadModule include_module lib/apache2/mod_include.so
    LoadModule filter_module lib/apache2/mod_filter.so
    #LoadModule reflector_module lib/apache2/mod_reflector.so
    #LoadModule substitute_module lib/apache2/mod_substitute.so
    #LoadModule sed_module lib/apache2/mod_sed.so
    #LoadModule charset_lite_module lib/apache2/mod_charset_lite.so
    LoadModule deflate_module lib/apache2/mod_deflate.so
    #LoadModule xml2enc_module lib/apache2/mod_xml2enc.so
    #LoadModule proxy_html_module lib/apache2/mod_proxy_html.so
    LoadModule mime_module lib/apache2/mod_mime.so
    #LoadModule ldap_module lib/apache2/mod_ldap.so
    LoadModule log_config_module lib/apache2/mod_log_config.so
    #LoadModule log_debug_module lib/apache2/mod_log_debug.so
    #LoadModule log_forensic_module lib/apache2/mod_log_forensic.so
    #LoadModule logio_module lib/apache2/mod_logio.so
    #LoadModule lua_module lib/apache2/mod_lua.so
    LoadModule env_module lib/apache2/mod_env.so
    #LoadModule mime_magic_module lib/apache2/mod_mime_magic.so
    #LoadModule expires_module lib/apache2/mod_expires.so
    LoadModule headers_module lib/apache2/mod_headers.so
    #LoadModule usertrack_module lib/apache2/mod_usertrack.so
    #LoadModule unique_id_module lib/apache2/mod_unique_id.so
    LoadModule setenvif_module lib/apache2/mod_setenvif.so
    LoadModule version_module lib/apache2/mod_version.so
    #LoadModule remoteip_module lib/apache2/mod_remoteip.so
    #LoadModule proxy_module lib/apache2/mod_proxy.so
    #LoadModule proxy_connect_module lib/apache2/mod_proxy_connect.so
    #LoadModule proxy_ftp_module lib/apache2/mod_proxy_ftp.so
    #LoadModule proxy_http_module lib/apache2/mod_proxy_http.so
    #LoadModule proxy_fcgi_module lib/apache2/mod_proxy_fcgi.so
    #LoadModule proxy_scgi_module lib/apache2/mod_proxy_scgi.so
    #LoadModule proxy_uwsgi_module lib/apache2/mod_proxy_uwsgi.so
    #LoadModule proxy_fdpass_module lib/apache2/mod_proxy_fdpass.so
    #LoadModule proxy_wstunnel_module lib/apache2/mod_proxy_wstunnel.so
    #LoadModule proxy_ajp_module lib/apache2/mod_proxy_ajp.so
    #LoadModule proxy_balancer_module lib/apache2/mod_proxy_balancer.so
    #LoadModule proxy_express_module lib/apache2/mod_proxy_express.so
    #LoadModule proxy_hcheck_module lib/apache2/mod_proxy_hcheck.so
    #LoadModule session_module lib/apache2/mod_session.so
    #LoadModule session_cookie_module lib/apache2/mod_session_cookie.so
    #LoadModule session_crypto_module lib/apache2/mod_session_crypto.so
    #LoadModule session_dbd_module lib/apache2/mod_session_dbd.so
    #LoadModule slotmem_shm_module lib/apache2/mod_slotmem_shm.so
    #LoadModule slotmem_plain_module lib/apache2/mod_slotmem_plain.so
    LoadModule ssl_module lib/apache2/mod_ssl.so
    #LoadModule dialup_module lib/apache2/mod_dialup.so
    LoadModule http2_module lib/apache2/mod_http2.so
    #LoadModule md_module lib/apache2/mod_md.so
    #LoadModule lbmethod_byrequests_module lib/apache2/mod_lbmethod_byrequests.so
    #LoadModule lbmethod_bytraffic_module lib/apache2/mod_lbmethod_bytraffic.so
    #LoadModule lbmethod_bybusyness_module lib/apache2/mod_lbmethod_bybusyness.so
    #LoadModule lbmethod_heartbeat_module lib/apache2/mod_lbmethod_heartbeat.so
    LoadModule unixd_module lib/apache2/mod_unixd.so
    #LoadModule heartbeat_module lib/apache2/mod_heartbeat.so
    #LoadModule heartmonitor_module lib/apache2/mod_heartmonitor.so
    #LoadModule dav_module lib/apache2/mod_dav.so
    LoadModule status_module lib/apache2/mod_status.so
    LoadModule autoindex_module lib/apache2/mod_autoindex.so
    #LoadModule asis_module lib/apache2/mod_asis.so
    #LoadModule info_module lib/apache2/mod_info.so
    #LoadModule suexec_module lib/apache2/mod_suexec.so
    <IfModule !mpm_prefork_module>
      LoadModule cgid_module lib/apache2/mod_cgid.so
    </IfModule>
    <IfModule mpm_prefork_module>
      LoadModule cgi_module lib/apache2/mod_cgi.so
    </IfModule>
    #LoadModule dav_fs_module lib/apache2/mod_dav_fs.so
    #LoadModule dav_lock_module lib/apache2/mod_dav_lock.so
    #LoadModule vhost_alias_module lib/apache2/mod_vhost_alias.so
    #LoadModule negotiation_module lib/apache2/mod_negotiation.so
    LoadModule dir_module lib/apache2/mod_dir.so
    LoadModule actions_module lib/apache2/mod_actions.so
    #LoadModule speling_module lib/apache2/mod_speling.so
    #LoadModule userdir_module lib/apache2/mod_userdir.so
    LoadModule alias_module lib/apache2/mod_alias.so
    LoadModule rewrite_module lib/apache2/mod_rewrite.so
 
    <IfModule unixd_module>
    #
    # If you wish httpd to run as a different user or group, you must run
    # httpd as root initially and it will switch.  
    #
    # User/Group: The name (or #number) of the user/group to run httpd as.
    # It is usually good practice to create a dedicated user and group for
    # running httpd, as with most system services.
    #
    User apache
    Group apache
 
    </IfModule>
 
    # 'Main' server configuration
    #
    # The directives in this section set up the values used by the 'main'
    # server, which responds to any requests that aren't handled by a
    # <VirtualHost> definition.  These values also provide defaults for
    # any <VirtualHost> containers you may define later in the file.
    #
    # All of these directives may appear inside <VirtualHost> containers,
    # in which case these default settings will be overridden for the
    # virtual host being defined.
    #
 
    #
    # ServerAdmin: Your address, where problems with the server should be
    # e-mailed.  This address appears on some server-generated pages, such
    # as error documents.  e.g. admin@your-domain.com
    #
    ServerAdmin you@example.com
 
    #
    # ServerName gives the name and port that the server uses to identify itself.
    # This can often be determined automatically, but we recommend you specify
    # it explicitly to prevent problems during startup.
    #
    # If your host doesn't have a registered DNS name, enter its IP address here.
    #
    #ServerName www.example.com:80
    ServerName your-server.example.com:8080
 
    #
    # Deny access to the entirety of your server's filesystem. You must
    # explicitly permit access to web content directories in other
    # <Directory> blocks below.
    #
    <Directory />
        AllowOverride none
        Require all denied
    </Directory>
 
    #
    # Note that from this point forward you must specifically allow
    # particular features to be enabled - so if something's not working as
    # you might expect, make sure that you have specifically enabled it
    # below.
    #
 
    #
    # DocumentRoot: The directory out of which you will serve your
    # documents. By default, all requests are taken from this directory, but
    # symbolic links and aliases may be used to point to other locations.
    #
    DocumentRoot "/www"
    <Directory "/www/">
        RedirectMatch ^/$ /zabbix
        #
        # Possible values for the Options directive are "None", "All",
        # or any combination of:
        #   Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews
        #
        # Note that "MultiViews" must be named *explicitly* --- "Options All"
        # doesn't give it to you.
        #
        # The Options directive is both complicated and important.  Please see
        # http://httpd.apache.org/docs/2.4/mod/core.html#options
        # for more information.
        #
        Options Indexes FollowSymLinks
 
        #
        # AllowOverride controls what directives may be placed in .htaccess files.
        # It can be "All", "None", or any combination of the keywords:
        #   AllowOverride FileInfo AuthConfig Limit
        #
        AllowOverride AuthConfig
 
        #
        # Controls who can get stuff from this server.
        #
        Require all granted
    </Directory>
 
    #
    # DirectoryIndex: sets the file that Apache will serve if a directory
    # is requested.
    #
    <IfModule dir_module>
        DirectoryIndex index.php index.html
    </IfModule>
 
    #
    # The following lines prevent .htaccess and .htpasswd files from being
    # viewed by Web clients.
    #
    <Files ".ht*">
        Require all denied
    </Files>
 
    #
    # ErrorLog: The location of the error log file.
    # If you do not specify an ErrorLog directive within a <VirtualHost>
    # container, error messages relating to that virtual host will be
    # logged here.  If you *do* define an error logfile for a <VirtualHost>
    # container, that host's errors will be logged there and not here.
    #
    ErrorLog "/srv/log/apache2/error_log"
 
    #
    # LogLevel: Control the number of messages logged to the error_log.
    # Possible values include: debug, info, notice, warn, error, crit,
    # alert, emerg.
    #
    LogLevel notice
 
    <IfModule log_config_module>
        #
        # The following directives define some format nicknames for use with
        # a CustomLog directive (see below).
        #
        LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
        LogFormat "%h %l %u %t \"%r\" %>s %b" common
 
        <IfModule logio_module>
          # You need to enable mod_logio.c to use %I and %O
          LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
        </IfModule>
 
        #
        # The location and format of the access logfile (Common Logfile Format).
        # If you do not define any access logfiles within a <VirtualHost>
        # container, they will be logged here.  Contrariwise, if you *do*
        # define per-<VirtualHost> access logfiles, transactions will be
        # logged therein and *not* in this file.
        #
        CustomLog "/srv/log/apache2/access_log" common
 
        #
        # If you prefer a logfile with access, agent, and referer information
        # (Combined Logfile Format) you can use the following directive.
        #
        #CustomLog "/var/log/apache2/access_log" combined
    </IfModule>
 
    <IfModule alias_module>
        #
        # Redirect: Allows you to tell clients about documents that used to
        # exist in your server's namespace, but do not anymore. The client
        # will make a new request for the document at its new location.
        # Example:
        # Redirect permanent /foo http://www.example.com/bar
 
        #
        # Alias: Maps web paths into filesystem paths and is used to
        # access content that does not live under the DocumentRoot.
        # Example:
        # Alias /webpath /full/filesystem/path
        #
        # If you include a trailing / on /webpath then the server will
        # require it to be present in the URL.  You will also likely
        # need to provide a <Directory> section to allow access to
        # the filesystem path.
 
        #
        # ScriptAlias: This controls which directories contain server scripts.
        # ScriptAliases are essentially the same as Aliases, except that
        # documents in the target directory are treated as applications and
        # run by the server when requested rather than as documents sent to the
        # client.  The same rules about trailing "/" apply to ScriptAlias
        # directives as to Alias.
        #
        # ScriptAlias /cgi-bin/ "/usr/share/apache2/cgi-bin/"
        ScriptAlias /php "/etc/php-cgi"
    </IfModule>
 
    <IfModule cgid_module>
        #
        # ScriptSock: On threaded servers, designate the path to the UNIX
        # socket used to communicate with the CGI daemon of mod_cgid.
        #
        Scriptsock cgisock
    </IfModule>
 
    #
    # "/usr/share/apache2/cgi-bin" should be changed to whatever your ScriptAliased
    # CGI directory exists, if you have that configured.
    #
 
    <Directory "/etc/php-cgi">
        AllowOverride None
        Options FollowSymlinks
        Require all granted
    </Directory>
 
    <IfModule headers_module>
        #
        # Avoid passing HTTP_PROXY environment to CGI's on this or any proxied
        # backend servers which have lingering "httpoxy" defects.
        # 'Proxy' request header is undefined by the IETF, not listed by IANA
        #
        RequestHeader unset Proxy early
    </IfModule>
 
    <IfModule mime_module>
        #
        # TypesConfig points to the file containing the list of mappings from
        # filename extension to MIME-type.
        #
        TypesConfig /etc/apache2/mime.types
 
        #
        # AddType allows you to add to or override the MIME configuration
        # file specified in TypesConfig for specific file types.
        #
        #AddType application/x-gzip .tgz
        #
        # AddEncoding allows you to have certain browsers uncompress
        # information on the fly. Note: Not all browsers support this.
        #
        #AddEncoding x-compress .Z
        #AddEncoding x-gzip .gz .tgz
        #
        # If the AddEncoding directives above are commented-out, then you
        # probably should define those extensions to indicate media types:
        #
        AddType application/x-compress .Z
        AddType application/x-gzip .gz .tgz
 
        AddType application/x-httpd-php .php
 
        #
        # AddHandler allows you to map certain file extensions to "handlers":
        # actions unrelated to filetype. These can be either built into the server
        # or added with the Action directive (see below)
        #
        # To use CGI scripts outside of ScriptAliased directories:
        # (You will also need to add "ExecCGI" to the "Options" directive.)
        #
        #AddHandler cgi-script .cgi
 
        # For type maps (negotiated resources):
        #AddHandler type-map var
 
        #
        # Filters allow you to process content before it is sent to the client.
        #
        # To parse .shtml files for server-side includes (SSI):
        # (You will also need to add "Includes" to the "Options" directive.)
        #
        #AddType text/html .shtml
        #AddOutputFilter INCLUDES .shtml
    </IfModule>
 
    #
    # The mod_mime_magic module allows the server to use various hints from the
    # contents of the file itself to determine its type.  The MIMEMagicFile
    # directive tells the module where the hint definitions are located.
    #
    #MIMEMagicFile /etc/apache2/magic
 
    #
    # Customizable error responses come in three flavors:
    # 1) plain text 2) local redirects 3) external redirects
    #
    # Some examples:
    #ErrorDocument 500 "The server made a boo boo."
    #ErrorDocument 404 /missing.html
    #ErrorDocument 404 "/cgi-bin/missing_handler.pl"
    #ErrorDocument 402 http://www.example.com/subscription_info.html
    #
 
    #
    # MaxRanges: Maximum number of Ranges in a request before
    # returning the entire resource, or one of the special
    # values 'default', 'none' or 'unlimited'.
    # Default setting is to accept 200 Ranges.
    #MaxRanges unlimited
 
    #
    # EnableMMAP and EnableSendfile: On systems that support it,
    # memory-mapping or the sendfile syscall may be used to deliver
    # files.  This usually improves server performance, but must
    # be turned off when serving from networked-mounted
    # filesystems or if support for these functions is otherwise
    # broken on your system.
    # Defaults: EnableMMAP On, EnableSendfile Off
    #
    #EnableMMAP off
    #EnableSendfile on
 
    # Supplemental configuration
    #
    # The configuration files in the /etc/apache2/extra/ directory can be
    # included to add extra features or to modify the default configuration of
    # the server, or you may simply copy their contents here and change as
    # necessary.
 
    # Server-pool management (MPM specific)
    Include /etc/apache2/extra/httpd-mpm.conf
 
    # Multi-language error messages
    #Include /etc/apache2/extra/httpd-multilang-errordoc.conf
 
    # Fancy directory listings
    #Include /etc/apache2/extra/httpd-autoindex.conf
 
    # Language settings
    #Include /etc/apache2/extra/httpd-languages.conf
 
    # User home directories
    #Include /etc/apache2/extra/httpd-userdir.conf
 
    # Real-time info on requests and configuration
    #Include /etc/apache2/extra/httpd-info.conf
 
    # Virtual hosts
    #Include /etc/apache2/extra/httpd-vhosts.conf
 
    # Local access to the Apache HTTP Server Manual
    #Include /etc/apache2/extra/httpd-manual.conf
 
    # Distributed authoring and versioning (WebDAV)
    #Include /etc/apache2/extra/httpd-dav.conf
 
    # Various default settings
    Include /etc/apache2/extra/httpd-default.conf
 
    # Configure mod_proxy_html to understand HTML4/XHTML1
    <IfModule proxy_html_module>
    Include /etc/apache2/extra/proxy-html.conf
    </IfModule>
 
    # Secure (SSL/TLS) connections
    Include /etc/apache2/extra/httpd-ssl.conf
    #
    # Note: The following must must be present to support
    #       starting without SSL on platforms with no /dev/random equivalent
    #       but a statically compiled-in mod_ssl.
    #
    <IfModule ssl_module>
    SSLRandomSeed startup builtin
    SSLRandomSeed connect builtin
    </IfModule>
 
   Action application/x-httpd-php "/php/php-cgi"

Modify ''/etc/apache/extra/httpd-ssl-conf''

Note: For this you need to have generated SSL CA and server certificate chain and key.

   Listen 8080
 
   #<VirtualHost _default_:443>
 
   #   General setup for the virtual host
   #DocumentRoot "/usr/share/apache2/htdocs"
   #ServerName www.example.com:443
   #ServerAdmin you@example.com
   #ErrorLog "/var/log/apache2/error_log"
   #TransferLog "/var/log/apache2/access_log"
 
   SSLEngine on
 
   SSLCertificateFile "/etc/ssl-certs/your-server-certificate-cert.pem"
   SSLCertificateKeyFile "/etc/ssl-certs/your-serve-private-key-key.pem"
   SSLCertificateChainFile "/etc/ssl-certs/your-server-certificate-chain-cert.pem"
 
   #SSLOptions +FakeBasicAuth +ExportCertData +StrictRequire
   <FilesMatch "\.(cgi|shtml|phtml|php)$">
       SSLOptions +StdEnvVars
   </FilesMatch>
   <Directory "/usr/share/apache2/cgi-bin">
       SSLOptions +StdEnvVars
   </Directory>
 
   BrowserMatch "MSIE [2-5]" \
            nokeepalive ssl-unclean-shutdown \
            downgrade-1.0 force-response-1.0
 
   #   Per-Server Logging:
   #   The home of a custom SSL log file. Use this when you want a
   #   compact non-error SSL logfile on a virtual host basis.
   #CustomLog "/var/log/apache2/ssl_request_log" \
   #          "%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"
 
   #</VirtualHost>

Update /etc/php.ini. For example:

[PHP]

;;;;;;;;;;;;;;;;;;;;
; Language Options ;
;;;;;;;;;;;;;;;;;;;;
 
engine = On
;short_open_tag = Off
precision = 12
output_buffering = Off
;output_handler =
zlib.output_compression = Off
;zlib.output_compression_level = -1
;zlib.output_handler =
implicit_flush = Off
unserialize_callback_func =
;unserialize_max_depth = 4096
serialize_precision = 100
open_basedir = "/www/zabbix:/srv/php-uploads:/tmp/zbx_config_cache"
disable_functions =
disable_classes =
;highlight.string = #DD0000
;highlight.comment = #FF9900
;highlight.keyword = #007700
;highlight.default = #0000BB
;highlight.html = #000000
;ignore_user_abort = On
;realpath_cache_size = 16k
;realpath_cache_ttl = 120
;zend.enable_gc = On
;zend.multibyte = Off
;zend.script_encoding =
;zend.exception_ignore_args = On
;zend.exception_string_param_max_len = 0

;;;;;;;;;;;;;;;;;
; Miscellaneous ;
;;;;;;;;;;;;;;;;;
 
expose_php = On

;;;;;;;;;;;;;;;;;;;
; Resource Limits ;
;;;;;;;;;;;;;;;;;;;

;max_execution_time = 30
max_execution_time = 300
;max_input_time = 60
max_input_time = 300
;max_input_nesting_level = 64
;max_input_vars = 1000
;memory_limit = 8M
memory_limit = 128M

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Error handling and logging ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
error_reporting = E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT
display_errors = On
display_startup_errors = On
log_errors = On
ignore_repeated_errors = Off
ignore_repeated_source = Off
report_memleaks = On
;report_zend_debug = 0
track_errors = Off
;html_errors = Off
;docref_root = "/phpmanual/"
;docref_ext = .html
;error_prepend_string = "<span style='color: #ff0000'>"
;error_append_string = "</span>"
;error_log = syslog
error_log = /srv/log/php/php.log
;syslog.ident = php
;syslog.facility = user
;syslog.filter = ascii

;;;;;;;;;;;;;;;;;
; Data Handling ;
;;;;;;;;;;;;;;;;;

;arg_separator.output = "&amp;"
;arg_separator.input = ";&"
variables_order = "EGPCS"
request_order = "GP"
register_argc_argv = On
auto_globals_jit = On
;enable_post_data_reading = Off
;post_max_size = 8M
post_max_size = 16M
auto_prepend_file =
auto_append_file =
default_mimetype = "text/html"
default_charset = "UTF-8"
;internal_encoding =
;input_encoding =
;output_encoding =

;;;;;;;;;;;;;;;;;;;;;;;;;
; Paths and Directories ;
;;;;;;;;;;;;;;;;;;;;;;;;;

;include_path = ".:/php/includes"
doc_root = "/www"
user_dir =
extension_dir = "/usr/lib/php8"
;sys_temp_dir = "/tmp"
enable_dl = On
;cgi.force_redirect = 1
;cgi.nph = 1
;cgi.redirect_status_env =
cgi.fix_pathinfo = 1
;cgi.discard_path = 1
;fastcgi.impersonate = 1
;fastcgi.logging = 0
;cgi.rfc2616_headers = 0
;cgi.check_shebang_line = 1

;;;;;;;;;;;;;;;;
; File Uploads ;
;;;;;;;;;;;;;;;;
 
file_uploads = On
;upload_tmp_dir = "/tmp"
upload_tmp_dir = "/srv/php-uploads"
upload_max_filesize = 2M
max_file_uploads = 20

;;;;;;;;;;;;;;;;;;
; Fopen wrappers ;
;;;;;;;;;;;;;;;;;;
 
allow_url_fopen = On
allow_url_include = Off
;from = "john@doe.com"
;user_agent = "PHP"
default_socket_timeout = 60
;auto_detect_line_endings = Off

chown apache:apache /srv/php-uploads

chgrp apache /www/zabbix/conf
chmod g+w /www/zabbix/conf

service apache2 restart

You should now be able to browse to https://your-server.name:8080 and access the Zabbix setup screen.

See the Zabbix documentation for default username and password. https://www.zabbix.com/documentation/7.0/en/manual/quickstart/login

It is recommended you change this.

To gather the data / monitor the hosts, you need to configure zabbix_server and one or more Zabbix Agents.

See zabbix and edit /etc/zabbix_server.conf and /etc/zabbix_agentd.conf.

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  • Last modified: 2025/12/03 00:52
  • by danielfdickinson1