Windows server 2012 contains a firewall program called windows firewall with adavanced security. This firewall is often automatically configured so that access to program will be allowed.
We need to deletermine if incoming/outgoing connections will be blocked or allowed by defalut, unless a rule is explicity made, You need to check as follows: Open the windows Firewall with Adavcanced Secuirty.
- Go to Start >> Administrative Tools >> Windows Firewall with Advanced Security
- At windows Firewall with Advanced Security, click on Inbound Rules
- Click on New Rule, At New Inbound Rule wizard, Select Port and click Next.
- Select TCP/UDP & specify port you wish to open in Specific Local Ports and click Next
- Select Allow the connection & click Next, Select the area where you want to apply this rule and click Next.
- Provide Name & Description for the newly created rule & click Finish.
- New rule will reflect in Windows Firewall With Advanced Security.