diff --git a/install/dist/lib/fedora.lib.php b/install/dist/lib/fedora.lib.php
index 9e3f07d102f3dc4062115eb1c970016e4cf27e8f..9620bf3561ff4e403220bc94bbc3dad61e7ebe76 100644
--- a/install/dist/lib/fedora.lib.php
+++ b/install/dist/lib/fedora.lib.php
@@ -1372,6 +1372,7 @@ class installer_dist extends installer_base {
 		//* Create the ispconfig log directory
 		if(!is_dir($conf['ispconfig_log_dir'])) mkdir($conf['ispconfig_log_dir']);
 		if(!is_file($conf['ispconfig_log_dir'].'/ispconfig.log')) exec('touch '.$conf['ispconfig_log_dir'].'/ispconfig.log');
+		chmod($conf['ispconfig_log_dir'].'/ispconfig.log', 0600);
 
 		if(is_user('getmail')) {
 			exec('mv /usr/local/ispconfig/server/scripts/run-getmail.sh /usr/local/bin/run-getmail.sh');
diff --git a/install/dist/lib/gentoo.lib.php b/install/dist/lib/gentoo.lib.php
index a7d62cda0b5e768de52d2e218fe89fc61d14c23c..f719fbee3819c2477d6a036749d09ba027b5f50a 100644
--- a/install/dist/lib/gentoo.lib.php
+++ b/install/dist/lib/gentoo.lib.php
@@ -1252,6 +1252,7 @@ class installer extends installer_base
 		if (!is_file($conf['ispconfig_log_dir'].'/ispconfig.log')) {
 			touch($conf['ispconfig_log_dir'].'/ispconfig.log');
 		}
+		chmod($conf['ispconfig_log_dir'].'/ispconfig.log', 0600);
 
 		//* Create the ispconfig auth log file and set uid/gid
 		if(!is_file($conf['ispconfig_log_dir'].'/auth.log')) {
diff --git a/install/dist/lib/opensuse.lib.php b/install/dist/lib/opensuse.lib.php
index 8a4152d9b5c251b63e25ed1440aea1bca511fc12..b9e3a1c575f8a9edd83c572840bcf796571c54cc 100644
--- a/install/dist/lib/opensuse.lib.php
+++ b/install/dist/lib/opensuse.lib.php
@@ -1369,6 +1369,7 @@ class installer_dist extends installer_base {
 		//* Create the ispconfig log directory
 		if(!is_dir($conf['ispconfig_log_dir'])) mkdir($conf['ispconfig_log_dir']);
 		if(!is_file($conf['ispconfig_log_dir'].'/ispconfig.log')) exec('touch '.$conf['ispconfig_log_dir'].'/ispconfig.log');
+		chmod($conf['ispconfig_log_dir'].'/ispconfig.log', 0600);
 
 		if(is_user('getmail')) {
 			exec('mv /usr/local/ispconfig/server/scripts/run-getmail.sh /usr/local/bin/run-getmail.sh');
diff --git a/install/lib/installer_base.lib.php b/install/lib/installer_base.lib.php
index 338a3dfc7ed6198dd5abce2b82ce57e51bfe0082..cec9c55b42822b0075dc2d1e65e6434c8ed4fac5 100644
--- a/install/lib/installer_base.lib.php
+++ b/install/lib/installer_base.lib.php
@@ -3588,6 +3588,7 @@ class installer_base {
 			if(!is_dir($conf['ispconfig_log_dir'])) mkdir($conf['ispconfig_log_dir'], 0755);
 			touch($conf['ispconfig_log_dir'].'/ispconfig.log');
 		}
+		chmod($conf['ispconfig_log_dir'].'/ispconfig.log', 0600);
 
 		//* Create the ispconfig auth log file and set uid/gid
 		if(!is_file($conf['ispconfig_log_dir'].'/auth.log')) {