RSS feeds don't work

I’m getting the following error when trying to add https://community.ubuntu.com/latest.rss to my feed reader:

60 SSL certificate problem: unable to get local issuer certificate

I have other discourse sites in my feed reader which work fine:

  • ://community.endlessos.com/c/en.rss
  • ://forum.lede-project.org/latest.rss
  • ://discourse.tt-rss.org/latest.rss

I followed these recommendations in the past for such errors but in this case it rather seems like an issue with the site configuration.

I have no problems with curl for the other URLs from a clean artful VM. Using and testing the answer from StackOverflow on my computer running 16.04 gives me the following:

$ wget https://curl.haxx.se/ca/cacert.pem
--2017-10-12 18:15:33--  https://curl.haxx.se/ca/cacert.pem
Resolving curl.haxx.se (curl.haxx.se)... 151.101.114.49, 2a04:4e42:1b::561
Connecting to curl.haxx.se (curl.haxx.se)|151.101.114.49|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 236061 (231K) [application/x-pem-file]
Saving to: 'cacert.pem'

cacert.pem                       100%[========================================================>] 230,53K  44,1KB/s    in 5,2s    

2017-10-12 18:15:45 (44,1 KB/s) - 'cacert.pem' saved [236061/236061]

$ sudo cp cacert.pem /etc/ssl/cacert.pem
$ curl https://community.ubuntu.com/latest.rss --cacert /etc/ssl/cacert.pem
curl: (60) server certificate verification failed. CAfile: /etc/ssl/cacert.pem CRLfile: none
More details here: http://curl.haxx.se/docs/sslcerts.html

curl performs SSL certificate verification by default, using a "bundle"
 of Certificate Authority (CA) public keys (CA certs). If the default
 bundle file isn't adequate, you can specify an alternate file
 using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
 the bundle, the certificate verification probably failed due to a
 problem with the certificate (it might be expired, or the name might
 not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
 the -k (or --insecure) option.
1 Like

Since I’m a new user I can only post 2 http(s) links, so replace :// with https:// please.

Strange. I just tried installing Liferea on Ubuntu 16.04 and it works fine here.

image

However, running it through an SSL checker was a bit interesting:-

https://www.sslshopper.com/ssl-checker.html#hostname=community.ubuntu.com

image

Checking with our IS people.

1 Like

Ok, tracking this with our IS people on RT 106533

1 Like

Looks like @deej has fixed this…

 alan@hal:~$ curl https://community.ubuntu.com/latest.rss | more
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0<?xml version="1.0" encoding="UTF-8" ?>
<rss version="2.0" xmlns:discourse="http://www.discourse.org/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <channel>
    <title>Ubuntu Community Hub - Latest topics</title>
    <link>http://community.ubuntu.com/latest</link>
    <description>Latest topics</description>
    
      <lastBuildDate>Thu, 12 Oct 2017 16:35:24 +0000</lastBuildDate>
      <atom:link href="http://community.ubuntu.com/latest.rss" rel="self" type="application/rss+xml" />
        <item>
          <title>Mir release 0.28</title>
          <dc:creator><![CDATA[@alan_g Alan Griffiths]]></dc:creator>
          <category>Mir</category>
          <description><![CDATA[
            <p><a href="http://community.ubuntu.com/u/alan_g">@alan_g</a> wrote:</p>
            <blockquote>
              <h1>Mir 0.28</h1>
<p>We are pleased to announce that Mir 0.28 has been released and is available in Ubuntu 17.10 (Artful).</p>
<p>As the content (and even the name) of this release has changed over the time we’ve been working towards it now is probably a good time to reflect on what it is, and what it isn’t after all.</p>
<h2>What is in Mir 0.28?</h2>
<h3>There is now a stable server ABI</h3>
<p>This simplifies the use of “Mir snaps” making it possible to release new library versions without breaking servers.</p>
<p>One of the barriers to the adoption of Mir has been the potential for Mir releases to break downstream projects that depend on a stable ABI. This is provided by libmiral, which is now part of Mir.</p>
<p>The Yunit project which uses Mir as part of its graphics stack has already <a href="https://yunit.io/yunit-project-updates-20170917/" rel="nofollow noopener">started migrating code</a> to use <code>libmir
al</code> for this reason.</p>

I confirm, it works here to with curl and my feed reader. Many thanks for the quick response and solution!

2 Likes

works for me (also liferea on 16.04)
but thanks for post, it hadn’t occurred to me to add this to my reader :slight_smile:

1 Like