diff --git a/docker-compose_v3_alpine_mysql_latest.yaml b/docker-compose_v3_alpine_mysql_latest.yaml
index ddccae4ce..c44739b53 100644
--- a/docker-compose_v3_alpine_mysql_latest.yaml
+++ b/docker-compose_v3_alpine_mysql_latest.yaml
@@ -385,6 +385,8 @@ services:
    - all
   ports:
    - "10053:10053"
+  volumes:
+   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   cap_add:
    - SYS_ADMIN
   deploy:
diff --git a/docker-compose_v3_alpine_mysql_local.yaml b/docker-compose_v3_alpine_mysql_local.yaml
index c4d64f4a0..71eda1d23 100644
--- a/docker-compose_v3_alpine_mysql_local.yaml
+++ b/docker-compose_v3_alpine_mysql_local.yaml
@@ -421,6 +421,8 @@ services:
    - all
   ports:
    - "10053:10053"
+  volumes:
+   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   cap_add:
    - SYS_ADMIN
   deploy:
diff --git a/docker-compose_v3_alpine_pgsql_latest.yaml b/docker-compose_v3_alpine_pgsql_latest.yaml
index 3703cafd7..bd0a49319 100644
--- a/docker-compose_v3_alpine_pgsql_latest.yaml
+++ b/docker-compose_v3_alpine_pgsql_latest.yaml
@@ -381,6 +381,8 @@ services:
    - all
   ports:
    - "10053:10053"
+  volumes:
+   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   cap_add:
    - SYS_ADMIN
   deploy:
diff --git a/docker-compose_v3_alpine_pgsql_local.yaml b/docker-compose_v3_alpine_pgsql_local.yaml
index 9c2604235..b59ebb581 100644
--- a/docker-compose_v3_alpine_pgsql_local.yaml
+++ b/docker-compose_v3_alpine_pgsql_local.yaml
@@ -417,6 +417,8 @@ services:
    - all
   ports:
    - "10053:10053"
+  volumes:
+   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   cap_add:
    - SYS_ADMIN
   deploy:
diff --git a/docker-compose_v3_centos_mysql_latest.yaml b/docker-compose_v3_centos_mysql_latest.yaml
index af84bc70f..9b4df90a9 100644
--- a/docker-compose_v3_centos_mysql_latest.yaml
+++ b/docker-compose_v3_centos_mysql_latest.yaml
@@ -387,6 +387,8 @@ services:
    - "10053:10053"
   cap_add:
    - SYS_ADMIN
+  volumes:
+   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   deploy:
    resources:
     limits:
diff --git a/docker-compose_v3_centos_mysql_local.yaml b/docker-compose_v3_centos_mysql_local.yaml
index 89209a6a2..00081b131 100644
--- a/docker-compose_v3_centos_mysql_local.yaml
+++ b/docker-compose_v3_centos_mysql_local.yaml
@@ -421,6 +421,8 @@ services:
    - all
   ports:
    - "10053:10053"
+  volumes:
+   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   cap_add:
    - SYS_ADMIN
   deploy:
diff --git a/docker-compose_v3_centos_pgsql_latest.yaml b/docker-compose_v3_centos_pgsql_latest.yaml
index f9bafbb93..491bfd24c 100644
--- a/docker-compose_v3_centos_pgsql_latest.yaml
+++ b/docker-compose_v3_centos_pgsql_latest.yaml
@@ -381,6 +381,8 @@ services:
    - all
   ports:
    - "10053:10053"
+  volumes:
+   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   cap_add:
    - SYS_ADMIN
   deploy:
diff --git a/docker-compose_v3_centos_pgsql_local.yaml b/docker-compose_v3_centos_pgsql_local.yaml
index 1364c2b47..a923c2f65 100644
--- a/docker-compose_v3_centos_pgsql_local.yaml
+++ b/docker-compose_v3_centos_pgsql_local.yaml
@@ -417,6 +417,8 @@ services:
    - all
   ports:
    - "10053:10053"
+  volumes:
+   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   cap_add:
    - SYS_ADMIN
   deploy:
diff --git a/docker-compose_v3_ubuntu_mysql_latest.yaml b/docker-compose_v3_ubuntu_mysql_latest.yaml
index 6eb5612ff..7a543360b 100644
--- a/docker-compose_v3_ubuntu_mysql_latest.yaml
+++ b/docker-compose_v3_ubuntu_mysql_latest.yaml
@@ -377,6 +377,8 @@ services:
    - all
   ports:
    - "10053:10053"
+  volumes:
+   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   cap_add:
    - SYS_ADMIN
   deploy:
diff --git a/docker-compose_v3_ubuntu_mysql_local.yaml b/docker-compose_v3_ubuntu_mysql_local.yaml
index ca2c37a34..7845fb56c 100644
--- a/docker-compose_v3_ubuntu_mysql_local.yaml
+++ b/docker-compose_v3_ubuntu_mysql_local.yaml
@@ -415,6 +415,8 @@ services:
    - all
   ports:
    - "10053:10053"
+  volumes:
+   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   cap_add:
    - SYS_ADMIN
   deploy:
diff --git a/docker-compose_v3_ubuntu_pgsql_latest.yaml b/docker-compose_v3_ubuntu_pgsql_latest.yaml
index dc8b8a704..076e1ce3a 100644
--- a/docker-compose_v3_ubuntu_pgsql_latest.yaml
+++ b/docker-compose_v3_ubuntu_pgsql_latest.yaml
@@ -375,6 +375,8 @@ services:
    - all
   ports:
    - "10053:10053"
+  volumes:
+   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   cap_add:
    - SYS_ADMIN
   deploy:
diff --git a/docker-compose_v3_ubuntu_pgsql_local.yaml b/docker-compose_v3_ubuntu_pgsql_local.yaml
index 9b8684c2e..6b369d983 100644
--- a/docker-compose_v3_ubuntu_pgsql_local.yaml
+++ b/docker-compose_v3_ubuntu_pgsql_local.yaml
@@ -411,6 +411,8 @@ services:
    - all
   ports:
    - "10053:10053"
+  volumes:
+   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   cap_add:
    - SYS_ADMIN
   deploy:
diff --git a/web-service/alpine/Dockerfile b/web-service/alpine/Dockerfile
index df8992d8a..79c0159b6 100644
--- a/web-service/alpine/Dockerfile
+++ b/web-service/alpine/Dockerfile
@@ -59,7 +59,6 @@ RUN set -eux && \
             --prefix=/usr \
             --sysconfdir=/etc/zabbix \
             --prefix=/usr \
-            --enable-ipv6 \
             --enable-webservice \
             --silent && \
     make -j"$(nproc)" -s && \
diff --git a/web-service/alpine/docker-entrypoint.sh b/web-service/alpine/docker-entrypoint.sh
index 248e73c83..81df4a689 100755
--- a/web-service/alpine/docker-entrypoint.sh
+++ b/web-service/alpine/docker-entrypoint.sh
@@ -84,43 +84,27 @@ update_config_var() {
 
 }
 
-update_config_multiple_var() {
-    local config_path=$1
-    local var_name=$2
-    local var_value=$3
-
-    var_value="${var_value%\"}"
-    var_value="${var_value#\"}"
-
-    local IFS=,
-    local OPT_LIST=($var_value)
-
-    for value in "${OPT_LIST[@]}"; do
-        update_config_var $config_path $var_name $value true
-    done
-}
-
 prepare_zbx_web_service_config() {
     echo "** Preparing Zabbix web service configuration file"
-    ZBX_WEB_SERVICE_CONFIG=$ZABBIX_ETC_DIR/zabbix_web_service.conf
+    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_web_service.conf
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "LogType" "console"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "LogFile"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "LogFileSize"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
+    update_config_var $ZBX_CONFIG "LogType" "console"
+    update_config_var $ZBX_CONFIG "LogFile"
+    update_config_var $ZBX_CONFIG "LogFileSize"
+    update_config_var $ZBX_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
 
     : ${ZBX_ALLOWEDIP:="zabbix-server"}
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "AllowedIP" "${ZBX_ALLOWEDIP}"
+    update_config_var $ZBX_CONFIG "AllowedIP" "${ZBX_ALLOWEDIP}"
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
+    update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "Timeout" "${ZBX_TIMEOUT}"
+    update_config_var $ZBX_CONFIG "Timeout" "${ZBX_TIMEOUT}"
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
+    update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
+    update_config_var $ZBX_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
+    update_config_var $ZBX_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
+    update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
 }
 
 prepare_web_service() {
diff --git a/web-service/centos/Dockerfile b/web-service/centos/Dockerfile
index fe28ce933..f8e11f064 100644
--- a/web-service/centos/Dockerfile
+++ b/web-service/centos/Dockerfile
@@ -22,7 +22,8 @@ RUN set -eux && \
     mkdir -p /var/lib/zabbix && \
     mkdir -p /var/lib/zabbix/enc && \
     dnf --quiet makecache && \
-    dnf -y install epel-release && \
+    dnf -y install --setopt=tsflags=nodocs --setopt=install_weak_deps=False --best \
+            epel-release && \
     dnf -y install --setopt=tsflags=nodocs --setopt=install_weak_deps=False --best \
             chromium \
             openssl-libs \
@@ -63,7 +64,6 @@ RUN set -eux && \
             --prefix=/usr \
             --sysconfdir=/etc/zabbix \
             --prefix=/usr \
-            --enable-ipv6 \
             --enable-webservice \
             --silent && \
     make -j"$(nproc)" -s && \
diff --git a/web-service/centos/docker-entrypoint.sh b/web-service/centos/docker-entrypoint.sh
index 248e73c83..81df4a689 100755
--- a/web-service/centos/docker-entrypoint.sh
+++ b/web-service/centos/docker-entrypoint.sh
@@ -84,43 +84,27 @@ update_config_var() {
 
 }
 
-update_config_multiple_var() {
-    local config_path=$1
-    local var_name=$2
-    local var_value=$3
-
-    var_value="${var_value%\"}"
-    var_value="${var_value#\"}"
-
-    local IFS=,
-    local OPT_LIST=($var_value)
-
-    for value in "${OPT_LIST[@]}"; do
-        update_config_var $config_path $var_name $value true
-    done
-}
-
 prepare_zbx_web_service_config() {
     echo "** Preparing Zabbix web service configuration file"
-    ZBX_WEB_SERVICE_CONFIG=$ZABBIX_ETC_DIR/zabbix_web_service.conf
+    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_web_service.conf
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "LogType" "console"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "LogFile"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "LogFileSize"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
+    update_config_var $ZBX_CONFIG "LogType" "console"
+    update_config_var $ZBX_CONFIG "LogFile"
+    update_config_var $ZBX_CONFIG "LogFileSize"
+    update_config_var $ZBX_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
 
     : ${ZBX_ALLOWEDIP:="zabbix-server"}
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "AllowedIP" "${ZBX_ALLOWEDIP}"
+    update_config_var $ZBX_CONFIG "AllowedIP" "${ZBX_ALLOWEDIP}"
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
+    update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "Timeout" "${ZBX_TIMEOUT}"
+    update_config_var $ZBX_CONFIG "Timeout" "${ZBX_TIMEOUT}"
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
+    update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
+    update_config_var $ZBX_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
+    update_config_var $ZBX_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
+    update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
 }
 
 prepare_web_service() {
diff --git a/web-service/ubuntu/Dockerfile b/web-service/ubuntu/Dockerfile
index 0ff6fa9ad..9bb662d39 100644
--- a/web-service/ubuntu/Dockerfile
+++ b/web-service/ubuntu/Dockerfile
@@ -78,7 +78,6 @@ RUN set -eux && \
             --prefix=/usr \
             --sysconfdir=/etc/zabbix \
             --prefix=/usr \
-            --enable-ipv6 \
             --enable-webservice \
             --silent && \
     make -j"$(nproc)" -s && \
diff --git a/web-service/ubuntu/docker-entrypoint.sh b/web-service/ubuntu/docker-entrypoint.sh
index 248e73c83..81df4a689 100755
--- a/web-service/ubuntu/docker-entrypoint.sh
+++ b/web-service/ubuntu/docker-entrypoint.sh
@@ -84,43 +84,27 @@ update_config_var() {
 
 }
 
-update_config_multiple_var() {
-    local config_path=$1
-    local var_name=$2
-    local var_value=$3
-
-    var_value="${var_value%\"}"
-    var_value="${var_value#\"}"
-
-    local IFS=,
-    local OPT_LIST=($var_value)
-
-    for value in "${OPT_LIST[@]}"; do
-        update_config_var $config_path $var_name $value true
-    done
-}
-
 prepare_zbx_web_service_config() {
     echo "** Preparing Zabbix web service configuration file"
-    ZBX_WEB_SERVICE_CONFIG=$ZABBIX_ETC_DIR/zabbix_web_service.conf
+    ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_web_service.conf
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "LogType" "console"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "LogFile"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "LogFileSize"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
+    update_config_var $ZBX_CONFIG "LogType" "console"
+    update_config_var $ZBX_CONFIG "LogFile"
+    update_config_var $ZBX_CONFIG "LogFileSize"
+    update_config_var $ZBX_CONFIG "DebugLevel" "${ZBX_DEBUGLEVEL}"
 
     : ${ZBX_ALLOWEDIP:="zabbix-server"}
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "AllowedIP" "${ZBX_ALLOWEDIP}"
+    update_config_var $ZBX_CONFIG "AllowedIP" "${ZBX_ALLOWEDIP}"
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
+    update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "Timeout" "${ZBX_TIMEOUT}"
+    update_config_var $ZBX_CONFIG "Timeout" "${ZBX_TIMEOUT}"
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
+    update_config_var $ZBX_CONFIG "TLSAccept" "${ZBX_TLSACCEPT}"
+    update_config_var $ZBX_CONFIG "TLSCAFile" "${ZBX_TLSCAFILE}"
 
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
-    update_config_var $ZBX_WEB_SERVICE_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
+    update_config_var $ZBX_CONFIG "TLSCertFile" "${ZBX_TLSCERTFILE}"
+    update_config_var $ZBX_CONFIG "TLSKeyFile" "${ZBX_TLSKEYFILE}"
 }
 
 prepare_web_service() {