factory(ChangeUserName.Factory.class);
bind(PublickeyAuthenticator.class).to(DatabasePubKeyAuth.class);
bind(KeyPairProvider.class).toProvider(HostKeyProvider.class).in(SINGLETON);
install(new DefaultCommandModule());
install(new LifecycleModule() {
@Override
protected void configure() {
bind(ModuleGenerator.class).to(SshAutoRegisterModuleGenerator.class);