HTTP issue between vm guest host and local machine

[messi1O]

Hi Everyone,

I am having an issue with accessing an HTTP page on my local machine to access an application running over the VM guest host. To magnify the issue, I have recently downloaded the Zabbix monitoring system and it is running perfectly over the VM guest host, but when I try accessing the HTTP page on my local machine's web browser, I am getting the `error connection` page. The httpd service is running on the guest machine. I wonder if I have to change some firewall settings on the VM side? 

[scott28tt]

The only firewall in ESXi is for communication to/from ESXi, not to/from VMs and their OSes.

[fabio1975 · Accepted solution]

Ciao 

HTTP access from outside the virtual machine could be blocked, so you need to check if the firewall of your VM is configured correctly, I guess the VM is LINUX and Distribution?

For example on Centos you can use the firewall-cmd command, to see which firewall rules are active:

sudo firewall-cmd --list-all

 if you do not see the HTTP service it means that it is not open:

and therefore to open the HTTP port:

firewall-cmd --add-service = http --zone = public --permanent

then

sudo firewall-cmd --reload

and recheck with:

sudo firewall-cmd --list-all

Otherwise it could be the apache that only enabled access from localhost.

[messi1O]

Hi Fabio, you are a lifesaver. I was trying to find a solution for this problem for four days straight up and contacted Zabbix and Vmware and disabled the firewall on the local machine, but I didn't expect a simple yet helpful answer. Things can be hidden in plain sight in Linux. Big Thank You for your help. 

[messi1O]

Thank You, Scott, for replying. A piece of handy information you shared about ESXi and VMs.