 certificate.</p></div><p class=post-author>Jun 7, 2019 <span>| </span>By Oliver Liu</p><div><aside class="callout warning"><div class=type><svg class="large-icon"><use xlink:href="/v1.20/img/icons.svg#callout-warning"/></svg></div><div class=content>This blog post was written assuming Istio 1.1, so some of this content may now be outdated.</div></aside></div><div><p>Istio self-signed certificates have historically had a 1 year default lifetime.
If you are using Istio self-signed certificates,
you need to s