# Certificate expired error when downloading from download.processing.org

**URL:** <https://travis-ci.community/t/certificate-expired-error-when-downloading-from-download-processing-org/10031>\
**Category:** Linux\
**Created:** [September 29, 2020, 8:59am UTC](https://travis-ci.community/t/certificate-expired-error-when-downloading-from-download-processing-org/10031 "2020-09-29T08:59:15Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![pavels](https://sea1.discourse-cdn.com/flex015/user_avatar/travis-ci.community/pavels/32/5242_2.png) [@pavels](https://travis-ci.community/u/pavels)\
**Post date:** [September 29, 2020, 8:59am UTC](https://travis-ci.community/t/certificate-expired-error-when-downloading-from-download-processing-org/10031/1 "2020-09-29T08:59:15Z")

</div>

Maybe somehow related to [Certificate expired in Windows](https://travis-ci.community/t/certificate-expired-in-windows/8874)

I get following error:

```auto
Connecting to download.processing.org (download.processing.org)|23.239.19.146|:443... connected.
ERROR: cannot verify download.processing.org's certificate, issued by ‘CN=COMODO RSA Domain Validation Secure Server CA,O=COMODO CA Limited,L=Salford,ST=Greater Manchester,C=GB’:
  Issued certificate has expired.

```

Command:

```auto
wget https://download.processing.org/processing-3.5.4-linux64.tgz

```

My chrome on linux says certificate is OK

---

<div class="post-metadata">

**Author:** ![native-api](https://sea1.discourse-cdn.com/flex015/user_avatar/travis-ci.community/native-api/32/430_2.png) [@native-api](https://travis-ci.community/u/native-api)\
**Post date:** [September 29, 2020, 12:32pm UTC](https://travis-ci.community/t/certificate-expired-error-when-downloading-from-download-processing-org/10031/2 "2020-09-29T12:32:34Z")

</div>

According to [https://www.ssllabs.com/ssltest/analyze.html?d=download.processing.org](https://www.ssllabs.com/ssltest/analyze.html?d=download.processing.org), **this is a problem with `download.processing.org`:** some of the certificates in the certification chain it provides have expired. Testing in browser shows that the issuer has issued a new certificate since (which the browser has in its extended bundle and uses instead of the one the server provides) – so **that server’s maintainer needs to update the corresponding certificates in the chain.**

**Please report this problem to that server’s maintainer.**

In the meantime, as a workaround, you can disable certificate checking for that download with `wget --no-check-certificate`.