# Admin UI on ip6-loopback/localhost in a cluster?

**URL:** <https://community.cratedb.com/t/admin-ui-on-ip6-loopback-localhost-in-a-cluster/587>\
**Category:** CrateDB\
**Created:** [March 20, 2021, 11:51pm UTC](https://community.cratedb.com/t/admin-ui-on-ip6-loopback-localhost-in-a-cluster/587 "2021-03-20T23:51:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sampope](https://avatars.discourse-cdn.com/v4/letter/s/e9c0ed/32.png) [@sampope](https://community.cratedb.com/u/sampope)\
**Post date:** [March 20, 2021, 11:51pm UTC](https://community.cratedb.com/t/admin-ui-on-ip6-loopback-localhost-in-a-cluster/587/1 "2021-03-20T23:51:16Z")

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Hi,

I setup cratedb in a 2 node cluster this weekend. So far, it’s working, but I cannot reach the Admin UI anymore. We’re not opening up the firewall to allow tcp/4200 to the internet, nor do we have a VPN. We generally ssh portforward to reach localhost/ip6-loopback on individual hosts.

## desired state

let me config the Admin UI to be `_local_` only in a cluster configuration.

## network setup

```auto
[test-server-01]⇋⇋[40gb fiber switch]⇋⇋[test-server-02]
                          ↳ {ipv6-only internet}

```

## single node cluster

The admin ui works great at ip6-loopback:4200 or localhost:4200 via curl on the server or via ssh port forwarding and hitting it with a browser.

## 2-node cluster config

When setup as a 2-node cluster, I can neither reach ip6-loopback:4200 nor localhost:4200/ via curl on the server or via ssh port forwarding.

Through following the docs and reading past posts here, I have setup both hosts with identical crate.yml files, except for `node.name` is specific to each host (test-01 and test-02).

```auto
cluster.name: crate-test-cluster
network.host: _local_, test-server-01.crate-test-cluster.example.lan

```

What am I doing wrong?

Thanks!

---

<div class="post-metadata">

**Author:** ![sampope](https://avatars.discourse-cdn.com/v4/letter/s/e9c0ed/32.png) [@sampope](https://community.cratedb.com/u/sampope)\
**Post date:** [March 21, 2021, 8:42am UTC](https://community.cratedb.com/t/admin-ui-on-ip6-loopback-localhost-in-a-cluster/587/2 "2021-03-21T08:42:03Z")

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After experimentation, I managed to figure it out.

It works with:

```auto
cluster.name: crate-test-cluster
network.host: _local_, test-server-01.example.lan

```

---

<div class="post-metadata">

**Author:** ![proddata](https://sea2.discourse-cdn.com/flex020/user_avatar/community.cratedb.com/proddata/32/1379_2.png) [@proddata](https://community.cratedb.com/u/proddata)\
**Post date:** [March 21, 2021, 9:08am UTC](https://community.cratedb.com/t/admin-ui-on-ip6-loopback-localhost-in-a-cluster/587/3 "2021-03-21T09:08:47Z")

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thanks for giving an update and welcome to the CrateDB community 🙂