# \#using-the-forum

**URL:** https://forums.percona.com/tag/using-the-forum/16.md

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## [How to connect to FTP/SSL from CloverETL](https://forums.percona.com/t/how-to-connect-to-ftp-ssl-from-cloveretl/8327)

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**Author:** [@pramod](https://forums.percona.com/u/pramod)\
**Replies:** 0\
**Last updated:** [December 1, 2020, 7:57am UTC](https://forums.percona.com/t/how-to-connect-to-ftp-ssl-from-cloveretl/8327 "2020-12-01T07:57:33Z")

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I am trying to connect to the FTP/SSL from CloverETL but I am getting error - Failed to read file metadata, Connection refused. Blow is what I am used to list down files from the location but job failed. ftp://user:pass…

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## [What is Required configuration of AWS server have 3+1nodes in Percona XtraDB Cluster 8 with Ubuntu?](https://forums.percona.com/t/what-is-required-configuration-of-aws-server-have-3-1nodes-in-percona-xtradb-cluster-8-with-ubuntu/7919)

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**Author:** [@lokesh123](https://forums.percona.com/u/lokesh123)\
**Replies:** 2\
**Last updated:** [August 26, 2020, 12:43pm UTC](https://forums.percona.com/t/what-is-required-configuration-of-aws-server-have-3-1nodes-in-percona-xtradb-cluster-8-with-ubuntu/7919 "2020-08-26T12:43:54Z")

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3 node cluster setup and 1 separate RD backup as slave with 1 node of cluster. total 4 servers. Database size around - 200 -300 GB Number of consistence connections/users could be - 300+ 2 cores with 3 GB ram will b…