Configuring DNS and TLS

[BSarmady]

Hi,

after installing the X-UI, I have two issues

1- I'm getting a lot of
ERROR dns: exchange failed for ********.***. IN A: context canceled
ERROR dns: exchange failed for ********.***. IN A: io: read/write on closed pipe

and

ERROR [********** **.**s] inbound/tun[tun-in]: download: An existing connection was forcibly closed by the remote host.

in client connecting to XRay

Which then client (browser) shows Secure Connection Failed

I tried adding following dns to both client and server but it didn't fix the issue.

        "hosts": {
            "dns.google": [
                "8.8.8.8",
                "8.8.4.4"
            ]
        },
        "servers": [
            "8.8.8.8",
            "8.8.4.4",
            "localhost"
        ],
        "queryStrategy": "UseIP",
        "disableCache": false,
        "disableFallback": false,
        "disableFallbackIfMatch": false,
        "tag": "dns_inbound"
    },

2- How can I add TLS to my connection? Since the configuration in neither X-UI nor Xray explains the kind of certificate that can add, the question is can I add a self signed certificate? do I need to enter a domain?
a) in Xay configuration says I can add min and max version to transport layer, and also can select type (simulate browser, ....), how do I add those to X-UI is just adding it to Xray json enough? If I do that, how should I configure client connection in inbound tab?