diff --git a/source/_posts/2015-04-13-fix-sshd-socket-activation-when-using-tmux-slash-screen.markdown b/source/_posts/2015-04-13-fix-sshd-socket-activation-when-using-tmux-slash-screen.markdown
new file mode 100644
index 0000000..4e72b50
--- /dev/null
+++ b/source/_posts/2015-04-13-fix-sshd-socket-activation-when-using-tmux-slash-screen.markdown
@@ -0,0 +1,18 @@
+---
+layout: post
+title: "Fix sshd socket activation when using tmux/screen"
+date: 2015-04-13 10:04:18 +0200
+comments: true
+categories:
+---
+
+When using sshd.socket to start sshd on demand, detaching from a tmux/screen
+session will not work. The reason is once the ssh session is closed, systemd
+will terminate all remaining processes in the sshd cgroups, which affects also
+the tmux/screen background process. However this behaviour can be changed using
+the following drop-in file:
+
+```plain /etc/systemd/system/sshd@.service.d/killmode.conf
+[Service]
+KillMode=process
+```