How to secure a new server OS installation

Posted by Pat R Ellery on Server Fault See other posts from Server Fault or by Pat R Ellery
Published on 2013-11-11T14:33:36Z Indexed on 2013/11/11 15:58 UTC
Read the original article Hit count: 267

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ubuntu

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security

I bought (and just received) a new 1u dell poweredge 860 (got it on ebay for $35).

I finished installing Ubuntu Server (Ubuntu Server 12.04.3 LTS), install apache/mariadb/memcache/php5

works great but I am scared about security.

so far I am the only one using the server but eventually more people (friends, friends of friends) will use this server, use ssh etc...

I want to know what can I do to secure all the information and not get hacked, both from the web or ssh or ddos and any other attack possible.

Does Ubuntu Server does it for you right away? or I have to fix it my self?

Thank you

EDIT:

I installed (so far):

All dev tools
ssh server
LAMP

I didn't install:

Graphical interface

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