sshd: improve docs about supported ciphers, KEX and MACs

also added a check to ensure that the configured values are valid

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>

httpd/api_events.go

@@ -65,6 +65,7 @@ func getFsSearchParamsFromRequest(r *http.Request) (eventsearcher.FsEventSearch,
 	if err != nil {
 		return s, err
 	}
+	s.FsProvider = -1
 	if _, ok := r.URL.Query()["fs_provider"]; ok {
 		provider := r.URL.Query().Get("fs_provider")
 		val, err := strconv.Atoi(provider)