SSH config: Specify the key for SchooLinks VPN.

It double duty as an SSH bastion.

.ssh/config.d/20_schoolinks

@@ -11,6 +11,9 @@ Host monitoring.schoolinks.com
 Host sftp*.schoolinks.com
     IdentityFile ~/.ssh/schoolinks_sftp_rsa
 
+Host firezone*.schoolinks.com
+    IdentityFile ~/.ssh/schoolinks_vpn_rsa
+
 Host !firezone.schoolinks.com *.schoolinks.com 172.31.*.* 172.30.*.* 172.29.*.*
     ProxyCommand ssh firezone.schoolinks.com -W %h:%p