How to secure the server?

Question

System administration

Who protects the server from being hacked? Who monitors the load, and so that the site does not fall from a large influx of users?
Can a programmer do this or is some kind of sysadmin needed?
Expand this topic, please. Can be links.
UPD: maybe there is an inexpensive specialist somewhere who will do a one-time job?

Answer 1

This can be done by anyone with some knowledge of how to use a search engine such as google.
Regarding hacking, the attack vector is determined and monitoring is put on events along this vector. Regarding the load, the same. There are many systems for this business, I would use zabbix.

Answer 2

To get started: https://habrahabr.ru/company/rootwelt/blog/303462/

Answer 3

Can a programmer do this or is some kind of sysadmin needed?
Expand this topic, please. Can be links.

Easily! programmer . sys.admin
To administer the WEB server (since we are talking about the site), oddly enough, you need a WEB server administrator.
And security is not a one-time job. but an ongoing process. As well as maintaining the normal performance of the server.

Answer 4

or do you need some kind of sys.admin?
The day is not lived in vain...
"Some" system administrator is not needed - he will do the work "somehow" and dump, and then you will torment Google, Yandex, toaster... You need a competent system administrator :) And you also need a clear problem statement - because a well-asked question contains half the answer ...