li><p>Delete the service entry:</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl delete serviceentry mysql-external -n default
Deleted config: serviceentry mysql-external
</code></pre></li></ol><h2 id=conclusion>Conclusion</h2><p>In this blog post, I demonstrated how the microservices in an Istio service mesh can consume external services via TCP.
By default, Istio blocks all the traffic, TCP and HTTP, to the hosts outside the cluster. To enable such traffic for
TCP, TCP mes