Following the output:
[root@LVZNAGXIFEDR01 ~]# ping api.nagios.com -c 3
PING vs1.nagios.com (50.116.21.73) 56(84) bytes of data.
^C
--- vs1.nagios.com ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 40ms
[root@LVZNAGXIFEDR01 ~]# curl -k -L -v api.nagios.com
* Rebuilt URL to: api.nagios.com/
* Trying 50.116.21.73...
* TCP_NODELAY set
* Connected to api.nagios.com (50.116.21.73) port 80 (#0)
> GET / HTTP/1.1
> Host: api.nagios.com
> User-Agent: curl/7.61.1
> Accept: */*
>
< HTTP/1.1 302 Found
< Date: Wed, 15 Dec 2021 09:57:03 GMT
< Server: Apache
< Location:
https://api.nagios.com/
< Vary: Accept-Encoding
< Content-Length: 207
< Content-Type: text/html; charset=iso-8859-1
<
* Ignoring the response-body
* Connection #0 to host api.nagios.com left intact
* Issue another request to this URL: '
https://api.nagios.com/'
* Trying 50.116.21.73...
* TCP_NODELAY set
* Connected to api.nagios.com (50.116.21.73) port 443 (#1)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384
* ALPN, server did not agree to a protocol
* Server certificate:
* subject: CN=*.nagios.com
* start date: May 27 00:00:00 2020 GMT
* expire date: Jun 26 23:59:59 2022 GMT
* issuer: C=GB; ST=Greater Manchester; L=Salford; O=Sectigo Limited; CN=Sectigo RSA Domain Validation Secure Server CA
* SSL certificate verify ok.
> GET / HTTP/1.1
> Host: api.nagios.com
> User-Agent: curl/7.61.1
> Accept: */*
>
< HTTP/1.1 200 OK
< Date: Wed, 15 Dec 2021 09:57:04 GMT
< Server: Apache
< Set-Cookie: api_session=c4gavmskusp5s3b7qn2usvh23qad87dd; path=/; HttpOnly
< Expires: Thu, 19 Nov 1981 08:52:00 GMT
< Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
< Pragma: no-cache
< Vary: Accept-Encoding
< Content-Length: 3998
< Content-Type: text/html; charset=UTF-8
<
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<!-- Produced by Nagios. Copyyright (c) 2017-2021 Nagios Enterprises, LLC (
www.nagios.com). All Rights Reserved. -->
<title>Welcome · Nagios API</title>
<link rel="icon" type="image/png" sizes="32x32" href="
https://api.nagios.com/static/images/favicon-32x32.png">
<link type="text/css" href="
https://api.nagios.com/static/css/bootstrap.min.css" rel="stylesheet" /><link type="text/css" href="
https://api.nagios.com/static/css/sumoselect.min.css" rel="stylesheet" /><link type="text/css" href="
https://api.nagios.com/static/css/font-awesome.min.css" rel="stylesheet" /><link type="text/css" href="
https://api.nagios.com/static/css/main.css" rel="stylesheet" /> <script type="text/javascript" src="
https://api.nagios.com/static/js/jquery ... pt><script type="text/javascript" src="
https://api.nagios.com/static/js/bootst ... pt><script type="text/javascript" src="
https://api.nagios.com/static/js/jquery ... pt><script type="text/javascript" src="
https://api.nagios.com/static/js/main.js"></script> </head>
<body>
<div id="wrapper">
<div class="content">
<style type="text/css">
.container { margin: 0 auto; padding-top: 120px; }
</style>
<div class="container">
<div class="row">
<div class="col-sm-12">
<h1 style="font-weight: bold;">Nagios API</h1>
<div class="section-sm">
<h4>Purpose</h4>
<p>This site is used to process data related to version update checks and feedback for Nagios® and other products and services developed and/or distributed by Nagios Enterprises.</p>
<p>We use this site to:</p>
<ul>
<li>Provide you with notifications of updates and new releases of Nagios and other products and services.</li>
<li>Collect feedback from you regarding Nagios and other products and services.</li>
<li>Track the numbers of Nagios® installations worldwide to help provide updates and security fixes.</li>
</ul>
</div>
<div class="section-sm">
<h4>Privacy</h4>
<p>We value your privacy and process any data sent to this server in accordance with our <a href="
https://www.nagios.com/legal/privacypolicy/">Privacy Policy</a>.</p>
</div>
<div class="section-sm">
<h4>Usage</h4>
<p>Use of this website, and the services offered by it are subject to our website <a href="
https://www.nagios.org/legal/termsofuse/" title="Terms of Use">Terms of Use</a> and <a href="
https://www.nagios.org/legal/trademarkpolicy/" title="Trademark Use Restrictions">Trademark Use Restrictions</a>.</p>
</div>
<div class="section-sm">
<a href="
https://www.nagios.com/"><img src="
https://api.nagios.com/static/images/nagios-logo.png" style="width: 120px; float: left; margin: 5px 20px 10px 0;"></a>
<div>Nagios and Nagios graphics are the servicemarks, trademarks, or registered trademarks owned by Nagios Enterprises.</div>
<div>Website Copyright © 2000-2021 Nagios Enterprises, LLC. All rights reserved.</div>
<div style="margin-top: 10px;">
<a href="
https://www.nagios.com/legal/privacypolicy/" title="Privacy Policy">Privacy Policy</a> ·
<a href="
https://www.nagios.com/legal/trademarkpolicy/" title="Trademark Use Restrictions">Trademark Use Restrictions</a> ·
<a href="
https://www.nagios.com/legal/termsofuse/" title="Terms of Use">Terms of Use</a>
</div>
<div class="clear"></div>
</div>
</div>
</div>
</div>
</div>
</div>
* Connection #1 to host api.nagios.com left intact