add server4

diff --git a/greptilian.com/servers.mdwn b/greptilian.com/servers.mdwn
index 7d24a935c5e6763f8759c4ecca9b9bf61a516261..20e0d2fcdf43a810d84e7945fb3b862a0ca7bcc6 100644 (file)
--- a/greptilian.com/servers.mdwn
+++ b/greptilian.com/servers.mdwn
@@ -19,3 +19,6 @@ http://munin.greptilian.com/greptilian.com/server2.greptilian.com/
 
 server3 runs Ubuntu 18.04 and is hosted on [Digital Ocean](http://digitalocean.com).
 
+## server4.greptilian.com (launched 2022-07-17)
+
+server4 runs Ubuntu 22.04 and is hosted on [Digital Ocean](http://digitalocean.com).