diff --git a/README.SUSE b/README.SUSE
index 05cca9c..27ac5fb 100644
--- a/README.SUSE
+++ b/README.SUSE
@@ -13,13 +13,25 @@ dir /var/lib/redis/otherapp/
 
 If you want to run more than one instance you also have to change the
 socket path and/or the ip:port combination.
+ e.g. /var/run/redis/otherapp.sock
+
+If you plan to use redis in combination with apache, then you should
+add 'redis' to apache group and set 'unixsocketperm 770':
+$ usermod -a -G redis wwwrun
+$ systemctl restart apache2
+then apache is able to connect to redis socket
 
 Also make sure if you copy configurations from somewhere, that "daemonize"
 should be set to "no".
 
-3. create the database dir:
+3a. create the database dir:
 $ install -d -o redis -g redis -m 0750 /var/lib/redis/otherapp/
 
+3b. add limits (ulimit) to each service
+$ install -d -m 0755 /etc/systemd/system/redis@otherapp.service.d
+$ echo "[Service]
+LimitNOFILE=10240" > /etc/systemd/system/redis@otherapp.service.d/limits.conf
+
 4. systemctl start redis@otherapp
 5. systemctl enable redis@otherapp
 
diff --git a/redis.changes b/redis.changes
index ff9c2a9..4274d72 100644
--- a/redis.changes
+++ b/redis.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Wed Jun 21 16:28:36 UTC 2017 - chris@computersalat.de
+
+- cleanup service file
+- add redis.sysctl file
+- update README.SUSE
+  * add info for socket usage per service
+  * add info for limits per service (LimitNOFILE=10240)
+
 -------------------------------------------------------------------
 Thu May 18 12:43:42 UTC 2017 - vsistek@suse.com
 
diff --git a/redis.spec b/redis.spec
index e8a80d7..578ec77 100644
--- a/redis.spec
+++ b/redis.spec
@@ -37,6 +37,7 @@ Source2:        redis.target
 Source3:        redis@.service
 Source4:        redis.tmpfiles.d
 Source5:        README.SUSE
+Source6:        %{name}.sysctl
 # PATCH-FIX-OPENSUSE -- openSUSE-style init script
 Patch0:         %{name}-initscript.patch
 # PATCH-MISSING-TAG -- See http://wiki.opensuse.org/openSUSE:Packaging_Patches_guidelines
@@ -96,6 +97,9 @@ perl -p -i -e 's|daemonize yes|daemonize no|g' redis.conf
 install -D -m 0640 redis.conf           %{buildroot}%{_conf_dir}/default.conf.example
 install -D -m 0640 sentinel.conf        %{buildroot}%{_conf_dir}/sentinel.conf.example
 
+# some sysctl stuff
+install -D -m 0644 %{S:6}               %{buildroot}%{_sysconfdir}/sysctl.d/00-redis.conf
+
 #
 # init
 #
@@ -166,6 +170,7 @@ echo " sudo rcredis start; sudo chkconfig redis on"
 %defattr(-,root,root,-)
 %doc 00-RELEASENOTES BUGS CONTRIBUTING COPYING README.md
 %config(noreplace) %{_sysconfdir}/logrotate.d/%{name}
+%config(noreplace) %{_sysconfdir}/sysctl.d/00-redis.conf
 %{_bindir}/redis-*
 %{_sbindir}/redis-*
 %{_sbindir}/rc%{name}
diff --git a/redis.sysctl b/redis.sysctl
new file mode 100644
index 0000000..6df0f96
--- /dev/null
+++ b/redis.sysctl
@@ -0,0 +1,12 @@
+### remove redis Warnings about
+
+# WARNING: The TCP backlog setting of 511 cannot be enforced because
+#  /proc/sys/net/core/somaxconn is set to the lower value of 128.
+net.core.somaxconn=512
+
+# WARNING overcommit_memory is set to 0! Background save may fail
+# under low memory condition. To fix this issue add
+# 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or
+# run the command 'sysctl -w vm.overcommit_memory=1' for this to take
+# effect.
+vm.overcommit_memory=1
diff --git a/redis@.service b/redis@.service
index d186781..7afc035 100644
--- a/redis@.service
+++ b/redis@.service
@@ -12,9 +12,5 @@ PIDFile=/var/run/redis/%i.pid
 ExecStart=/usr/sbin/redis-server /etc/redis/%i.conf
 Restart=on-failure
 
-#ExecStart=/usr/sbin/openvpn --daemon --suppress-timestamps --writepid /var/run/openvpn/%i.pid --cd /etc/openvpn/ --config %i.conf
-#ExecReload=/sbin/killproc -p /var/run/openvpn/%i.pid -HUP /usr/sbin/openvpn
-
 [Install]
 WantedBy=multi-user.target redis.target
-