Add strongSwan configuration example

strongswan/eduroam_cz_flr.conf.example

+# /etc/swanctl/conf.d/eduroam_cz_flr.conf
+
+# Defaults
+#+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+defaults {
+  local_addrs  = 78.77.76.75
+  #local_addrs  = 2001:78:77:76::75
+
+  local {
+    auth  = pubkey
+    # Cert in '/etc/swanctl/x509/', key in '/etc/swanctl/private/'
+    certs = radius.instituce.cz.crt
+  }
+
+  remote {
+    id         = DC=net, DC=geant, DC=eduroam, C=CZ, O=NRO of Czech Republic, CN=flr.eduroam.cz
+    auth       = pubkey
+    # CA cert in '/etc/swanctl/x509ca/'
+    cacerts    = eduPKI_CA_G_01.pem
+    revocation = strict
+  }
+
+  children {
+    host-host {
+      rekey_time    = 4h
+      esp_proposals = aes256-sha256
+      mode          = transport
+      start_action  = trap
+    }
+  }
+
+  dpd_delay   = 60s
+  send_cert   = always
+  version     = 1
+  mobike      = no
+  reauth_time = 24h
+  proposals   = aes256-sha256-ecp384
+}
+
+#^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+# Servers
+#+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+connections {
+
+  flr1_eduroam_cz : defaults {
+    remote_addrs = 78.128.248.10
+    #remote_addrs = 2001:718:ff05:aca::1:10
+  }
+
+  flr2_eduroam_cz : defaults {
+    remote_addrs = 78.128.248.11
+    #remote_addrs = 2001:718:ff05:aca::1:11
+  }
+
+  flr3_eduroam_cz : defaults {
+    remote_addrs = 78.128.248.12
+    #remote_addrs = 2001:718:ff05:aca::1:12
+  }
+
+
+}
+
+#^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^