> the Let's Encrypt CA doesn't distribute a CRL (there's literally not
<br>
 &gt; one listed in the CA&#39;s certificate), meaning there&#39;s nothing for
<br>
 &gt; Xrootd to retrieve.
<br>

<br>
OK, apparently Let&#39;s Encrypt is using OSCP
<br>
https://letsencrypt.org/docs/revoking/
<br>
https://en.wikipedia.org/wiki/Online_Certificate_Status_Protocol
<br>


<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">&mdash;<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly, <a href="https://github.com/xrootd/xrootd/issues/716#issuecomment-443786173">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AD7YjkOf7SaqSew93vps5eBZRyX_Z2zMks5u1VlZgaJpZM4UMpJn">mute the thread</a>.<img src="https://github.com/notifications/beacon/AD7YjrhERx3Q14vxfpt4dsCT60CXZ6qIks5u1VlZgaJpZM4UMpJn.gif" height="1" width="1" alt="" /></p>
<!cript type="application/json" data-scope="inboxmarkup">{"api_version":"1.0","publisher":{"api_key":"05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity":{"external_key":"github/xrootd/xrootd","title":"xrootd/xrootd","subtitle":"GitHub repository","main_image_url":"https://assets-cdn.github.com/images/email/message_cards/header.png","avatar_image_url":"https://assets-cdn.github.com/images/email/message_cards/avatar.png","action":{"name":"Open in GitHub","url":"https://github.com/xrootd/xrootd"}},"updates":{"snippets":[{"icon":"PERSON","message":"@lickdragon in #716:  \u003e the Let's Encrypt CA doesn't distribute a CRL (there's literally not\r\n \u003e one listed in the CA's certificate), meaning there's nothing for\r\n \u003e Xrootd to retrieve.\r\n\r\nOK, apparently Let's Encrypt is using OSCP\r\nhttps://letsencrypt.org/docs/revoking/\r\nhttps://en.wikipedia.org/wiki/Online_Certificate_Status_Protocol\r\n"}],"action":{"name":"View Issue","url":"https://github.com/xrootd/xrootd/issues/716#issuecomment-443786173"}}}</script>
<!cript type="application/ld+json">[
{
"@context": "http://schema.org",
"@type": "EmailMessage",
"potentialAction": {
"@type": "ViewAction",
"target": "https://github.com/xrootd/xrootd/issues/716#issuecomment-443786173",
"url": "https://github.com/xrootd/xrootd/issues/716#issuecomment-443786173",
"name": "View Issue"
},
"description": "View this Issue on GitHub",
"publisher": {
"@type": "Organization",
"name": "GitHub",
"url": "https://github.com"
}
},
{
"@type": "MessageCard",
"@context": "http://schema.org/extensions",
"hideOriginalBody": "false",
"originator": "AF6C5A86-E920-430C-9C59-A73278B5EFEB",
"title": "Re: [xrootd/xrootd] xrootd 4.80 cannot use letsencrypt as CA (#716)",
"sections": [
{
"text": "",
"activityTitle": "**cwseys**",
"activityImage": "https://assets-cdn.github.com/images/email/message_cards/avatar.png",
"activitySubtitle": "@lickdragon",
"facts": [

]
}
],
"potentialAction": [
{
"name": "Add a comment",
"@type": "ActionCard",
"inputs": [
{
"isMultiLine": true,
"@type": "TextInput",
"id": "IssueComment",
"isRequired": false
}
],
"actions": [
{
"name": "Comment",
"@type": "HttpPOST",
"target": "https://api.github.com",
"body": "{\n\"commandName\": \"IssueComment\",\n\"repositoryFullName\": \"xrootd/xrootd\",\n\"issueId\": 716,\n\"IssueComment\": \"{{IssueComment.value}}\"\n}"
}
]
},
{
"name": "Close issue",
"@type": "HttpPOST",
"target": "https://api.github.com",
"body": "{\n\"commandName\": \"IssueClose\",\n\"repositoryFullName\": \"xrootd/xrootd\",\n\"issueId\": 716\n}"
},
{
"targets": [
{
"os": "default",
"uri": "https://github.com/xrootd/xrootd/issues/716#issuecomment-443786173"
}
],
"@type": "OpenUri",
"name": "View on GitHub"
},
{
"name": "Unsubscribe",
"@type": "HttpPOST",
"target": "https://api.github.com",
"body": "{\n\"commandName\": \"MuteNotification\",\n\"threadId\": 338858599\n}"
}
],
"themeColor": "26292E"
}
]</script><br>
<hr>
<p align="left">
Use REPLY-ALL to reply to list</p>
<p align="center">To unsubscribe from the XROOTD-DEV list, click the following link:<br>
<a href="https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1" target="_blank">https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1</a>
</p>