# What means "socket.54" **URL:** \ **Category:** Operate a Stake Pool\ **Tags:** cardano-node\ **Created:** [22 February 2021 23:55 UTC](https://forum.cardano.org/t/what-means-socket-54/49490 "2021-02-22T23:55:09Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![Alexd1985](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/alexd1985/32/23759_2.png) [@Alexd1985](https://forum.cardano.org/u/Alexd1985)\ **Post date:** [23 February 2021 00:28 UTC](https://forum.cardano.org/t/what-means-socket-54/49490/5 "2021-02-23T00:28:26Z")
Sorry, seems not the KES are the problem… please read this > [@Host addr 0.0.0.0 causes ErrorPolicySuspendConsumer, Application Exception](https://forum.cardano.org/t/host-addr-0-0-0-0-causes-errorpolicysuspendconsumer-application-exception/44987): > > Using my external IP did not work (“cannot assign requested address”), so I found suggestions to use 0.0.0.0 or 127.0.0.1 How to Reproduce GCP compute engine medium 2Core 4GB Ram 10GB disk allow HTTP and HTTPS stake pool course instructions for build from source cardano-node run \ --topology testnet-topology.json \ --database-path db \ --socket-path db/node.socket \ --host-addr 0.0.0.0 \ --port 3001 \ --config testnet-config.json I get the following errors repeatedly: ErrorPolicySus… --- _[View the full topic](https://forum.cardano.org/t/what-means-socket-54/49490)._