Cannot find or connect to SQL instance showing when connecting to SQL server from SSMS

Checklist

-SQL Browser service is running on the DB server, this one listens to UDP broadcast to tell clients of its presence.

-UDP 1434 is allowed in the firewall of the server(inbound rule), this is so that UDP broadcasts from clients can reach server.

-TCP 1433 and 1434 are allowed in the firewall(inbound rule), this is so that SSMS can connect to SQL server instance.

-TCP and UDP protocols are enabled in SQL Configuration Manager.

-The SQL instance allows remote connections, check this by opening SSMS inside the server, connect to local instance, right click, choose Properties and check the option to allow remote connections.

-There is no IP conflict in the network with another server (if using Virtual machines, check that MAC addresses are different to have different IPs, otherwise SSMS may try to connect to wrong server).

Cloned VirtualBox VMs having same IP addresses

If this happens, turn off the VM, in the settings->Network->Adapter, expand Advanced, and click on the refresh button next to MAC address.

IP addresses are generated by DHCP from MAC addresses. Cloned VMs by default will have the same MAC address as the original VM, so need to change to another one.

Creating Domain controller and joining domain in VirtualBox

Make sure you use Host-Only network adapters for both DC and guest machines, Host-Only network adapter provides DHCP and DNS service.

If you’re using internal network, either configure your own DHCP or set static IP addresses.

Configure the DC also as a DNS server, so that it can resolve domain name to IP address when query. If not, register the DC to the DNS server.

If the DC is also a DNS server, set its IP address to the network adapter of member machines, so those machines can find the DC to join domain.

Make sure ports are allowed in firewall settings.

Capture web traffic using Fiddler for Android and iOS devices

Follow the blog posts:

For Android:

https://www.telerik.com/blogs/how-to-capture-android-traffic-with-fiddler?utm_medium=email&utm_source=eloqua&utm_campaign=fiddler-awareness-nurture&elqTrackId=EBEE5508BB1C0A9A8ABED50AD8AEEF92&elq=1aab4f3c3a8943f9a0a9588e8d087dd1&elqaid=16855&elqat=1&elqCampaignId=17333

For iOS:

https://www.telerik.com/blogs/how-to-capture-ios-traffic-with-fiddler?utm_medium=email&utm_source=eloqua&utm_campaign=fiddler-awareness-nurture&elqTrackId=649AA6BE931C88A025857FB5CA28063F&elq=1aab4f3c3a8943f9a0a9588e8d087dd1&elqaid=16855&elqat=1&elqCampaignId=17333