# Mattermost works with the curl command, but not in a browser

**URL:** <https://forum.mattermost.com/t/mattermost-works-with-the-curl-command-but-not-in-a-browser/8555>\
**Category:** Troubleshooting\
**Created:** [December 2, 2019, 8:37am UTC](https://forum.mattermost.com/t/mattermost-works-with-the-curl-command-but-not-in-a-browser/8555 "2019-12-02T08:37:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Egyptien91](https://avatars.discourse-cdn.com/v4/letter/e/d6d6ee/32.png) [@Egyptien91](https://forum.mattermost.com/u/Egyptien91)\
**Post date:** [December 2, 2019, 8:37am UTC](https://forum.mattermost.com/t/mattermost-works-with-the-curl-command-but-not-in-a-browser/8555/1 "2019-12-02T08:37:42Z")

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#### Summary

juste after the installation, when I check the installation with the curl command like the documentation say, it’s OK, but after, when I try to connect the Browser of my computer, it don’t work.

#### Steps to reproduce

CentOS 7  
Posgresql 9.4  
Last mattermost version

#### Expected behavior

response of : curl [http://localhost:8065](http://localhost:8065)

 etc...

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<div class="post-metadata">

**Author:** ![Egyptien91](https://avatars.discourse-cdn.com/v4/letter/e/d6d6ee/32.png) [@Egyptien91](https://forum.mattermost.com/u/Egyptien91)\
**Post date:** [December 2, 2019, 10:17am UTC](https://forum.mattermost.com/t/mattermost-works-with-the-curl-command-but-not-in-a-browser/8555/2 "2019-12-02T10:17:14Z")

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It’s OK, it was a bad configuration on the Linux firewall. I have configure the linux firewall with :  
firewall-cmd --zone= --add-port=8065/tcp --permanent  
firewall-cmd --reload