diff --git a/set_gnome_key_agent_ttl.sh b/set_gnome_key_agent_ttl.sh
new file mode 100755
index 0000000..43f4db2
--- /dev/null
+++ b/set_gnome_key_agent_ttl.sh
@@ -0,0 +1,20 @@
+set -e
+
+# from: https://askubuntu.com/questions/340809/how-can-i-adjust-the-default-passphrase-caching-duration-for-gpg-pgp-ssh-keys
+
+# gsettings list-keys org.gnome.crypto.cache
+# gpg-cache-method
+# gpg-cache-ttl
+
+# default:
+
+# gsettings get org.gnome.crypto.cache gpg-cache-ttl 
+# 300
+
+# gsettings get org.gnome.crypto.cache gpg-cache-method
+# 'session'
+
+gsettings set org.gnome.crypto.cache gpg-cache-method 'timeout'
+gsettings set org.gnome.crypto.cache gpg-cache-ttl 1800
+gnome-keyring-daemon -r
+