diff --git a/interface/web/sites/form/web_vhost_domain.tform.php b/interface/web/sites/form/web_vhost_domain.tform.php
index dccbace1044849e634261d7c538e3a8bb864d98a..042fca8f1bf600ee9cb2cf75772e061c9237b7ac 100644
--- a/interface/web/sites/form/web_vhost_domain.tform.php
+++ b/interface/web/sites/form/web_vhost_domain.tform.php
@@ -922,7 +922,7 @@ if($_SESSION["s"]["user"]["typ"] == 'admin'
                                 'datatype' => 'INTEGER',
                                 'formtype' => 'TEXT',
                                 'validators' => array (  0 => array ( 'type' => 'REGEX',
-                                                'regex' => '/^([0-9]{0,4})$/',
+                                                'regex' => '/^([0-9]{1,4})$/',
                                                 'errmsg'=> 'log_retention_error_regex'),
                                 ),
                                 'default' => '30',
diff --git a/interface/web/sites/lib/lang/ar_web_vhost_domain.lng b/interface/web/sites/lib/lang/ar_web_vhost_domain.lng
index 94c79285a22a42981bd842388a0dd24c9de9e742..41f4eb9bb1f21761774069477e28370445dfb01e 100644
--- a/interface/web/sites/lib/lang/ar_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/ar_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/bg_web_vhost_domain.lng b/interface/web/sites/lib/lang/bg_web_vhost_domain.lng
index 227f59a2b98b9a54e229308b4188bbd1f3459ac5..2da107636ca51e9206b69a989ba879c2f26826c6 100644
--- a/interface/web/sites/lib/lang/bg_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/bg_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/br_web_vhost_domain.lng b/interface/web/sites/lib/lang/br_web_vhost_domain.lng
index d23d6e42f82707c55c94f7aae5faad58fd03bbd4..ef6ceeaada73809b19dc0cd17f8b78847c1dbef4 100644
--- a/interface/web/sites/lib/lang/br_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/br_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'Porta HTTPS';
 $wb['http_port_error_regex'] = 'Porta HTTP inválida.';
 $wb['https_port_error_regex'] = 'Porta HTTPS inválida.';
 $wb['enable_pagespeed_txt'] = 'Habilitar PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/ca_web_vhost_domain.lng b/interface/web/sites/lib/lang/ca_web_vhost_domain.lng
index f556ac53ae1abdbb20c65d4fcbc18db3c495e90b..43a58b0dd1e65434b6c643d0aba3636b6cad7675 100644
--- a/interface/web/sites/lib/lang/ca_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/ca_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/cz_web_vhost_domain.lng b/interface/web/sites/lib/lang/cz_web_vhost_domain.lng
index 9904babdba08f6723ba6cc237f160d934f612dee..a278776629ca75b43d93f9f42b62d171faa2f1db 100644
--- a/interface/web/sites/lib/lang/cz_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/cz_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/de_web_domain.lng b/interface/web/sites/lib/lang/de_web_domain.lng
index c2d8ff9020757aea56280b3628a0bd984a0b9d30..75a4f146695d49aa69b729de85343c6aa0b346c5 100644
--- a/interface/web/sites/lib/lang/de_web_domain.lng
+++ b/interface/web/sites/lib/lang/de_web_domain.lng
@@ -133,6 +133,4 @@ $wb['http_port_txt'] = 'HTTP Port';
 $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
-$wb['log_retention_txt'] = 'Log-Datei Aufbewahrungszeit';
-$wb['log_retention_error_regex'] = 'Nur Nummern von 0-9999 zulässig.'
 ?>
diff --git a/interface/web/sites/lib/lang/de_web_vhost_domain.lng b/interface/web/sites/lib/lang/de_web_vhost_domain.lng
index f7b006342569b860dba212b6381a7f786e8e97b5..1b86171ea7a3ea7c27833c4a9a477caade0c8e77 100644
--- a/interface/web/sites/lib/lang/de_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/de_web_vhost_domain.lng
@@ -148,6 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
-$wb['log_retention_txt'] = 'Log-Datei Aufbewahrungszeit';
-$wb['log_retention_error_regex'] = 'Nur Nummern von 0-9999 zulässig.'
+$wb['log_retention_txt'] = 'Log-Dateien Aufbewahrungszeit';
+$wb['log_retention_error_regex'] = "Aufbewahrungszeit in Tagen (Erlaubte Werte: min. 0 - max. 9999)";
 ?>
diff --git a/interface/web/sites/lib/lang/dk_web_vhost_domain.lng b/interface/web/sites/lib/lang/dk_web_vhost_domain.lng
index f556ac53ae1abdbb20c65d4fcbc18db3c495e90b..43a58b0dd1e65434b6c643d0aba3636b6cad7675 100644
--- a/interface/web/sites/lib/lang/dk_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/dk_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/el_web_vhost_domain.lng b/interface/web/sites/lib/lang/el_web_vhost_domain.lng
index 667e0bb6ec5aec7254f7c9228b678f420cb06d3a..66d8f33a16a093809b45c5c0da56899deadb047d 100644
--- a/interface/web/sites/lib/lang/el_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/el_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/en_web_vhost_domain.lng b/interface/web/sites/lib/lang/en_web_vhost_domain.lng
index 23da049a955ced568478dd9a74c709365658abeb..4d7b32015155c5f35403e2f5cdaa7a118db69339 100644
--- a/interface/web/sites/lib/lang/en_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/en_web_vhost_domain.lng
@@ -153,4 +153,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/es_web_vhost_domain.lng b/interface/web/sites/lib/lang/es_web_vhost_domain.lng
index 8d890db4a41b3f400dcca3101575022340d2e9e9..432dd843410e2efd3c1ef63e1bf340dbdbe15729 100644
--- a/interface/web/sites/lib/lang/es_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/es_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/fi_web_vhost_domain.lng b/interface/web/sites/lib/lang/fi_web_vhost_domain.lng
index 22b75c84af1e7d59e98b5a6ddedb342fd0ed6d1f..f2de0000a0db169ab3c30a08caebd649306d79e3 100644
--- a/interface/web/sites/lib/lang/fi_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/fi_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/fr_web_vhost_domain.lng b/interface/web/sites/lib/lang/fr_web_vhost_domain.lng
index 9e88ec533f5f74eb54bc2ba65622efaa197e0fad..eb1bb82750cba95b5e98781cfcfa7a62492c412e 100644
--- a/interface/web/sites/lib/lang/fr_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/fr_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/hr_web_vhost_domain.lng b/interface/web/sites/lib/lang/hr_web_vhost_domain.lng
index eac61086d542ae8306720720d047f910e7d064e7..7262c6f85850de5b762e5177fa8da470896a143f 100644
--- a/interface/web/sites/lib/lang/hr_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/hr_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/hu_web_vhost_domain.lng b/interface/web/sites/lib/lang/hu_web_vhost_domain.lng
index e7adff96e8411b9db936dde50ba848eae13d5b76..e10f791710b0593d0116ca75f5e22f0a272003ac 100644
--- a/interface/web/sites/lib/lang/hu_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/hu_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/id_web_vhost_domain.lng b/interface/web/sites/lib/lang/id_web_vhost_domain.lng
index b334c4f6a3bb671f0e1e38071b70fa67f6d1fb30..0cd28efa96b3f3b3fe7613e7626ea5e5cffff4eb 100644
--- a/interface/web/sites/lib/lang/id_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/id_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/it_web_vhost_domain.lng b/interface/web/sites/lib/lang/it_web_vhost_domain.lng
index 1b31e12c22e5df82f22cd98062e7eb87d6eb0f2f..73b7b4d352180bc716a8d8fc0c4233308ea41103 100644
--- a/interface/web/sites/lib/lang/it_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/it_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/ja_web_vhost_domain.lng b/interface/web/sites/lib/lang/ja_web_vhost_domain.lng
index 6a68440cd62c12b9a84ecdb2970e1623433db4e1..47d7a154f19de5a8f3a9dc609bcc1628f26e8b61 100644
--- a/interface/web/sites/lib/lang/ja_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/ja_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/nl_web_vhost_domain.lng b/interface/web/sites/lib/lang/nl_web_vhost_domain.lng
index 9f384bb2f818674bc74a30775877519572ff42a8..227eb70d21110ea0bd3174e5c7828c45bdc15266 100644
--- a/interface/web/sites/lib/lang/nl_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/nl_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Poort';
 $wb['http_port_error_regex'] = 'HTTP Poort niet correct.';
 $wb['https_port_error_regex'] = 'HTTPS Poort niet correct.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/pl_web_vhost_domain.lng b/interface/web/sites/lib/lang/pl_web_vhost_domain.lng
index e7556d430bbf9ea18fb7a602cd14d9e0ed359762..3ccd645c32d4c6e5d159bf3dd6f3e5460ae86318 100644
--- a/interface/web/sites/lib/lang/pl_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/pl_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/pt_web_vhost_domain.lng b/interface/web/sites/lib/lang/pt_web_vhost_domain.lng
index 183d9d909478f99fe2416b7c126200649f03be43..4ff1e7c4252101f4ec762bea8c594f939b0c2886 100644
--- a/interface/web/sites/lib/lang/pt_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/pt_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/ro_web_vhost_domain.lng b/interface/web/sites/lib/lang/ro_web_vhost_domain.lng
index 0f26be9547ef613aa5f137ba91517c65112c44a1..fc10154df554189effef1c9f2d30a7ee415154a2 100644
--- a/interface/web/sites/lib/lang/ro_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/ro_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/se_web_vhost_domain.lng b/interface/web/sites/lib/lang/se_web_vhost_domain.lng
index a43688f27ee4fcd7ebee22cc5df1f8861ba58fd0..b8dae2f09a640e81d9c2eabbfd929f7415e69cf4 100644
--- a/interface/web/sites/lib/lang/se_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/se_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/sk_web_vhost_domain.lng b/interface/web/sites/lib/lang/sk_web_vhost_domain.lng
index d95787116aa3478aaab1da81ed12f3104b221d57..140835db84c53c8efabe363378b725dba6f1acec 100644
--- a/interface/web/sites/lib/lang/sk_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/sk_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>
diff --git a/interface/web/sites/lib/lang/tr_web_vhost_domain.lng b/interface/web/sites/lib/lang/tr_web_vhost_domain.lng
index 6bf33db68f3ea93b34618a6758c6807df0f53900..e2676913bf7a389118525ff17f10b8327450f2a4 100644
--- a/interface/web/sites/lib/lang/tr_web_vhost_domain.lng
+++ b/interface/web/sites/lib/lang/tr_web_vhost_domain.lng
@@ -148,4 +148,6 @@ $wb['https_port_txt'] = 'HTTPS Port';
 $wb['http_port_error_regex'] = 'HTTP Port invalid.';
 $wb['https_port_error_regex'] = 'HTTPS Port invalid.';
 $wb['enable_pagespeed_txt'] = 'Enable PageSpeed';
+$wb['log_retention_txt'] = 'Logfiles retention time';
+$wb['log_retention_error_regex'] = 'Retention time in days (allowed values: min. 0 - max. 9999)';
 ?>