diff --git a/install.sh b/install.sh
index 2a32caf..f6f676c 100755
--- a/install.sh
+++ b/install.sh
@@ -232,6 +232,9 @@ install_data crashkernel/startup-crashmemory.service      "$DESTDIR$systemdunitd
 install_exec mxsnoop/mxsnoop.sh                           "$DESTDIR$usr_sbindir/mxsnoop.sh"
 install_exec net_qdisc_nfs_low/net_qdisc_nfs_low          "$DESTDIR$usr_sbindir/net_qdisc_nfs_low"
 install_exec cronwrap/cronwrap                            "$DESTDIR$usrlocal_bindir/cronwrap"
+install_exec kill-exuser/kill-exuser                      "$DESTDIR$usr_sbindir/kill-exuser"
+install_data kill-exuser/kill-exuser.service              "$DESTDIR$systemdunitdir/kill-exuser.service"
+install_data kill-exuser/kill-exuser.timer                "$DESTDIR$systemdunitdir/kill-exuser.timer"
 
 postinstall
 exit
diff --git a/kill-exuser/kill-exuser b/kill-exuser/kill-exuser
new file mode 100755
index 0000000..3bb7486
--- /dev/null
+++ b/kill-exuser/kill-exuser
@@ -0,0 +1,6 @@
+#! /bin/bash
+
+for u in `ps --no-headers -A -o "ruser:20" | grep ^O | sort -u`; do
+    echo killall -9 -u $u
+    killall -9 -u $u
+done
diff --git a/kill-exuser/kill-exuser.service b/kill-exuser/kill-exuser.service
new file mode 100644
index 0000000..69c6d71
--- /dev/null
+++ b/kill-exuser/kill-exuser.service
@@ -0,0 +1,4 @@
+[Service]
+Type=oneshot
+ExecStart=/usr/sbin/kill-exuser
+
diff --git a/kill-exuser/kill-exuser.timer b/kill-exuser/kill-exuser.timer
new file mode 100644
index 0000000..b859420
--- /dev/null
+++ b/kill-exuser/kill-exuser.timer
@@ -0,0 +1,7 @@
+[Timer]
+OnCalendar=daily
+RandomizedDelaySec=1h
+Persistent=true
+
+[Install]
+WantedBy=timers.target