# Cannot define multiple Listeners on the same IP:port **URL:** \ **Category:** Help\ **Created:** [March 6, 2019, 9:11am UTC](https://community.letsencrypt.org/t/cannot-define-multiple-listeners-on-the-same-ip-port/87963 "2019-03-06T09:11:59Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![OsoPolar](https://avatars.discourse-cdn.com/v4/letter/o/4bbf92/32.png) [@OsoPolar](https://community.letsencrypt.org/u/OsoPolar)\ **Post date:** [March 6, 2019, 9:11am UTC](https://community.letsencrypt.org/t/cannot-define-multiple-listeners-on-the-same-ip-port/87963/1 "2019-03-06T09:11:59Z")
My domain is: **bitt.store** I ran this command: `sudo certbot --apache` It produced this output: ``` Error while running apachectl configtest. AH00526: Syntax error on line 359 of /etc/httpd/conf/httpd.conf: Cannot define multiple Listeners on the same IP:port ``` My web server is (include version): **Apache 2.4.37** The operating system my web server runs on is (include version): **CentOS 7** My hosting provider, if applicable, is: **Vultr** I can login to a root shell on my machine: **Yes** I’m using a control panel to manage my site: **No** The version of my client is: **0.31.0** The line 359 in the http.conf file is: `Include sites-enabled/*.conf` and it’s the last line of the file. The Virtual Host file in that directory is: ``` ServerName bitt.store ServerAlias www.bitt.store DocumentRoot /var/www/html SetHandler "proxy:fcgi://127.0.0.1:9000" ErrorLog /var/www/html/error.log CustomLog /var/www/html/requests.log combined ``` Also that is the only vhost file, there are no other sites hosted on that server. What does this error mean? Cannot define multiple Listeners on the same IP:port I checked and there are no other services using port 80 other than httpd. Is it an error related to php-fpm? Thanks in advance for the help. ---
**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:** [March 6, 2019, 9:19am UTC](https://community.letsencrypt.org/t/cannot-define-multiple-listeners-on-the-same-ip-port/87963/2 "2019-03-06T09:19:39Z")
Hi @OsoPolar > [@OsoPolar](#): > > Also that is the only vhost file, there are no other sites hosted on that server. do you have a standard config file? There may be the first port 80 - vHost. The second produces the error. ---
**Author:** ![OsoPolar](https://avatars.discourse-cdn.com/v4/letter/o/4bbf92/32.png) [@OsoPolar](https://community.letsencrypt.org/u/OsoPolar)\ **Post date:** [March 6, 2019, 9:32am UTC](https://community.letsencrypt.org/t/cannot-define-multiple-listeners-on-the-same-ip-port/87963/3 "2019-03-06T09:32:07Z")
I don’t think so, although I’m not sure how to check that, the only file in the sites-enabled directory is bitt.store.conf and it’s content it’s the one I posted above. Do you know how could I check if there is another directory or file that could be producing that error? Thank you! ---
**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:** [March 6, 2019, 10:00am UTC](https://community.letsencrypt.org/t/cannot-define-multiple-listeners-on-the-same-ip-port/87963/4 "2019-03-06T10:00:19Z")
That’s ```auto # /etc/apache2/ # |-- apache2.conf # | `-- ports.conf # |-- mods-enabled # | |-- *.load # | `-- *.conf # |-- conf-enabled # | `-- *.conf # `-- sites-enabled # `-- *.conf ``` the standard configuration. So check /etc/apache2/apache2.conf ---
**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:** [March 6, 2019, 11:12am UTC](https://community.letsencrypt.org/t/cannot-define-multiple-listeners-on-the-same-ip-port/87963/6 "2019-03-06T11:12:40Z")
> [@OsoPolar](#): > > **Listen 80** uncommented Two `Listen 80` are impossible, remove the second. ---
**Author:** ![OsoPolar](https://avatars.discourse-cdn.com/v4/letter/o/4bbf92/32.png) [@OsoPolar](https://community.letsencrypt.org/u/OsoPolar)\ **Post date:** [March 6, 2019, 12:16pm UTC](https://community.letsencrypt.org/t/cannot-define-multiple-listeners-on-the-same-ip-port/87963/7 "2019-03-06T12:16:27Z")
Oh ok, I see, I tried commenting #Listen 80 in **/var/default-conf/httpd/conf/httpd.conf** , restarting httpd and running certbot again but it still showed the error. Then I commented also the Listen 80 line from **/etc/httpd/conf.d/http.conf** , restart and run certbot again and this time the error was gone and it could continue but the server stopped serving the website. (Thanks for the patience) ---
**Author:** ![schoen](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/schoen/32/79_2.png) [@schoen](https://community.letsencrypt.org/u/schoen)\ **Post date:** [March 6, 2019, 6:14pm UTC](https://community.letsencrypt.org/t/cannot-define-multiple-listeners-on-the-same-ip-port/87963/8 "2019-03-06T18:14:42Z")
@joohoi, could you take a look at this briefly? It might be related to the other ongoing CentOS stuff, but in a different way. ---
**Author:** ![chalee](https://avatars.discourse-cdn.com/v4/letter/c/9d8465/32.png) [@chalee](https://community.letsencrypt.org/u/chalee)\ **Post date:** [March 11, 2019, 9:25pm UTC](https://community.letsencrypt.org/t/cannot-define-multiple-listeners-on-the-same-ip-port/87963/9 "2019-03-11T21:25:58Z")
Hi Team, I too am on Vultr with a vanilla LAMP stack on CentOS7 with the same issue. Regards ---
**Author:** ![system](https://global.discourse-cdn.com/letsencrypt/original/3X/c/a/ca6c06ea1ea201324bba7048c6841ce60236468d.png) [@system](https://community.letsencrypt.org/u/system)\ **Post date:** [April 10, 2019, 9:26pm UTC](https://community.letsencrypt.org/t/cannot-define-multiple-listeners-on-the-same-ip-port/87963/10 "2019-04-10T21:26:04Z")
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