# Error getting validation data **URL:** \ **Category:** Help\ **Created:** [January 18, 2019, 8:02pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185 "2019-01-18T20:02:18Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![iambesde](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/iambesde/32/29077_2.png) [@iambesde](https://community.letsencrypt.org/u/iambesde)\ **Post date:** [January 18, 2019, 8:02pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185/1 "2019-01-18T20:02:18Z")
Hi, Thank for help. I already studied the issue and tried to fix. But I ll need help. Seems like something simple. Yet I havent found the solution and my issue didnt seem to match other topics. My domain is: [neurotechdesigns.ddns.net](http://neurotechdesigns.ddns.net) I ran this command: certbot certonly --preferred-challenges http-01 -d [neurotechdesigns.ddns.net](http://neurotechdesigns.ddns.net) It produced this output:Saving debug log to /var/log/letsencrypt/letsencrypt.log How would you like to authenticate with the ACME CA? * * * 1: Spin up a temporary webserver (standalone) 2: Place files in webroot directory (webroot) * * * Select the appropriate number [1-2] then [enter] (press ‘c’ to cancel): 1 Plugins selected: Authenticator standalone, Installer None Starting new HTTPS connection (1): [acme-v02.api.letsencrypt.org](http://acme-v02.api.letsencrypt.org) Obtaining a new certificate Performing the following challenges: http-01 challenge for [neurotechdesigns.ddns.net](http://neurotechdesigns.ddns.net) Waiting for verification… Cleaning up challenges Failed authorization procedure. [neurotechdesigns.ddns.net](http://neurotechdesigns.ddns.net) (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: Fetching [http://neurotechdesigns.ddns.net/.well-known/acme-challenge/gwrsGuuhmWixJXeLXHm3mi-GKYT4tY24XLAo6W8Zkrs:](http://neurotechdesigns.ddns.net/.well-known/acme-challenge/gwrsGuuhmWixJXeLXHm3mi-GKYT4tY24XLAo6W8Zkrs:) Error getting validation data IMPORTANT NOTES: - The following errors were reported by the server: My web server is (include version): I have just taken this VPS…in the Services I didnt see apache or nignx… Do I need to find this from them ? The operating system my web server runs on is (include version): Centos 7 OS My hosting provider, if applicable, is:goolhost I can login to a root shell on my machine (yes or no, or I don’t know):yes I’m using a control panel to manage my site (no, or provide the name and version of the control panel):not using control panel right now. ---
**Author:** ![JuergenAuer](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/juergenauer/32/26491_2.png) [@JuergenAuer](https://community.letsencrypt.org/u/JuergenAuer)\ **Post date:** [January 18, 2019, 8:06pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185/2 "2019-01-18T20:06:59Z")
Hi @iambesde > [@iambesde](#): > > My domain is: [neurotechdesigns.ddns.net](http://neurotechdesigns.ddns.net) there is no running webserver ( [https://check-your-website.server-daten.de/?q=neurotechdesigns.ddns.net](https://check-your-website.server-daten.de/?q=neurotechdesigns.ddns.net) ) | Domainname | Http-Status | redirect | Sec. | G | | --- | --- | --- | --- | --- | | • [http://neurotechdesigns.ddns.net/](http://neurotechdesigns.ddns.net/) | | | | | | 198.15.127.157 | -14 | | 10.037 | T | | Timeout - The operation has timed out | | | | | | | | | | | | • [https://neurotechdesigns.ddns.net/](https://neurotechdesigns.ddns.net/) | | | | | | 198.15.127.157 | -14 | | 10.024 | T | | Timeout - The operation has timed out | | | | | | | | | | | | • [http://neurotechdesigns.ddns.net/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de](http://neurotechdesigns.ddns.net/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de) | | | | | | 198.15.127.157 | -14 | | 10.033 | T | | Timeout - The operation has timed out | | | | | Three timeouts. You use standalone, ok, certbot creates a new webserver. But is there a firewall or something else? ---
**Author:** ![iambesde](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/iambesde/32/29077_2.png) [@iambesde](https://community.letsencrypt.org/u/iambesde)\ **Post date:** [January 18, 2019, 8:11pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185/3 "2019-01-18T20:11:42Z")
Thanks for immediate reply. Appreciate. Now when I tried to run this …it was conficting with httpd as that was on port 80 …So I disabled httpd from running services. Now that should have some thing to do with no running webserver ? I dont think there is a firewall but Let me check with the VPS provider. Thanks. ---
**Author:** ![JuergenAuer](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/juergenauer/32/26491_2.png) [@JuergenAuer](https://community.letsencrypt.org/u/JuergenAuer)\ **Post date:** [January 18, 2019, 8:18pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185/4 "2019-01-18T20:18:46Z")
> [@iambesde](#): > > Now when I tried to run this …it was conficting with httpd as that was on port 80 …So I disabled httpd from running services. If you have a running webserver, you can use this to get a certificate. But I see only a timeout, so I don't know if it is a firewall or no running webserver. Start your webserver, recheck your domain (via [https://check-your-website.server-daten.de/?q=neurotechdesigns.ddns.net](https://check-your-website.server-daten.de/?q=neurotechdesigns.ddns.net) ), then you know if your domain is global visible. ---
**Author:** ![iambesde](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/iambesde/32/29077_2.png) [@iambesde](https://community.letsencrypt.org/u/iambesde)\ **Post date:** [January 18, 2019, 8:24pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185/5 "2019-01-18T20:24:43Z")
Ok When I start the httpd which is my webserver Apache. systemctl start httpd [root@neurotech ~]# certbot certonly --preferred-challenges http-01 -d [neurotechdesigns.ddns.net](http://neurotechdesigns.ddns.net) Saving debug log to /var/log/letsencrypt/letsencrypt.log How would you like to authenticate with the ACME CA? * * * 1: Spin up a temporary webserver (standalone) 2: Place files in webroot directory (webroot) * * * Select the appropriate number [1-2] then [enter] (press ‘c’ to cancel): 1 Plugins selected: Authenticator standalone, Installer None Starting new HTTPS connection (1): [acme-v02.api.letsencrypt.org](http://acme-v02.api.letsencrypt.org) Obtaining a new certificate Performing the following challenges: http-01 challenge for [neurotechdesigns.ddns.net](http://neurotechdesigns.ddns.net) Cleaning up challenges Problem binding to port 80: Could not bind to IPv4 or IPv6. ---
**Author:** ![JuergenAuer](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/juergenauer/32/26491_2.png) [@JuergenAuer](https://community.letsencrypt.org/u/JuergenAuer)\ **Post date:** [January 18, 2019, 8:30pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185/6 "2019-01-18T20:30:03Z")
Start your webserver. Then check, if your webserver is worldwide visible. If yes, use option 2, not 1. ---
**Author:** ![iambesde](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/iambesde/32/29077_2.png) [@iambesde](https://community.letsencrypt.org/u/iambesde)\ **Post date:** [January 18, 2019, 8:35pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185/7 "2019-01-18T20:35:15Z")
I am thankful for your help. I tried the option 2 …yet the same error as above. I checked the status of httpd and this line intrigues me.httpd: Could not reliably determine the server’s fully qualified domain name,…message root@neurotech ~]# systemctl status httpd ● httpd.service - The Apache HTTP Server Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled) Active: active (running) since Fri 2019-01-18 15:23:00 EST; 1min 52s ago Docs: man:httpd(8) man:apachectl(8) Process: 7995 ExecStop=/bin/kill -WINCH ${MAINPID} (code=exited, status=0/SUCCESS) Main PID: 10749 (httpd) Status: “Total requests: 0; Current requests/sec: 0; Current traffic: 0 B/sec” CGroup: /system.slice/httpd.service ├─10749 /usr/sbin/httpd -DFOREGROUND └─10750 /usr/sbin/httpd -DFOREGROUND Jan 18 15:23:00 neurotech systemd[1]: Starting The Apache HTTP Server… Jan 18 15:23:00 neurotech httpd[10749]: AH00558: **httpd: Could not reliably determine the server’s fully qualified domain name,…message** Jan 18 15:23:00 neurotech systemd[1]: Started The Apache HTTP Server. Hint: Some lines were ellipsized, use -l to show in full. Any idea why it saying that. And when I ssh from my computer to login to the hostname it works … So this is visible I think. ssh [root@neurotechdesigns.ddns.net](mailto:root@neurotechdesigns.ddns.net) works. ---
**Author:** ![JuergenAuer](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/juergenauer/32/26491_2.png) [@JuergenAuer](https://community.letsencrypt.org/u/JuergenAuer)\ **Post date:** [January 18, 2019, 8:38pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185/8 "2019-01-18T20:38:27Z")
> [@iambesde](#): > > So this is visible I think. No, it's not visible. Looks like you have now tested your domain via [https://check-your-website.server-daten.de/?q=neurotechdesigns.ddns.net](https://check-your-website.server-daten.de/?q=neurotechdesigns.ddns.net) , there is the timeout. So you see your server internal, but Letsencrypt can't check the file in /.well-known/acme-challenge Certbot creates. ---
**Author:** ![iambesde](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/iambesde/32/29077_2.png) [@iambesde](https://community.letsencrypt.org/u/iambesde)\ **Post date:** [January 18, 2019, 8:42pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185/9 "2019-01-18T20:42:06Z")
Can you suggest something. See I got this free ip from noip to map to the VPS IP. Shall I check with them. Does it take some time to become active and visible globally. Its been 5-6 hrs or less since I created this with them. Regards. Just cant understand.I have used the same hostname ie [neurotechdesigns.ddns.net](http://neurotechdesigns.ddns.net) and installed the certificates in September 2018. Since VPS deactivated because we didnt need it. And today again we have reactivated the VPS. I am trying to provide the neccessary information. Thanks for patience. ---
**Author:** ![JuergenAuer](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/juergenauer/32/26491_2.png) [@JuergenAuer](https://community.letsencrypt.org/u/JuergenAuer)\ **Post date:** [January 18, 2019, 8:53pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185/10 "2019-01-18T20:53:06Z")
> [@iambesde](#): > > See I got this free ip from noip to map to the VPS IP. There is only one ip: | Host | T | IP-Address | is auth. | ∑ Queries | ∑ Timeout | | --- | --- | --- | --- | --- | --- | | [neurotechdesigns.ddns.net](http://neurotechdesigns.ddns.net) | A | 198.15.127.157 | yes | 1 | 0 | | | AAAA | | yes | | | And this is the ip of ```nohighlight vps.cheaphost4you.com [198.15.127.157] ``` I don't know if this service blocks port 80 generally or if it is a special problem of your domain name. You can use dns-01 - validation. Then you don't need an open port 80. But then you have to create a dns txt entry with a special value. And you have to do that manual if your nf1.no-ip.com` doesn't have a DNS API. ---
**Author:** ![iambesde](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/iambesde/32/29077_2.png) [@iambesde](https://community.letsencrypt.org/u/iambesde)\ **Post date:** [January 18, 2019, 9:09pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185/11 "2019-01-18T21:09:40Z")
I can try that…Please direct me about this. ---
**Author:** ![system](https://global.discourse-cdn.com/letsencrypt/original/3X/c/a/ca6c06ea1ea201324bba7048c6841ce60236468d.png) [@system](https://community.letsencrypt.org/u/system)\ **Post date:** [February 17, 2019, 9:09pm UTC](https://community.letsencrypt.org/t/error-getting-validation-data/83185/12 "2019-02-17T21:09:45Z")
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