How to disable requests to a specific site on the server?

Question

linux

There is a Debian web server on AWS.
It is necessary to prohibit any requests to api.telegram.org .
How to implement this task? help please

Answer 1

route add -host 149.154.167.220 reject

Answer 2

Block requests for this domain in iptables, there are a lot of instructions.

Answer 3

In /etc/hosts set this domain to localhost, for example.

Answer 4

Try:
Drop all incoming from url
Drop all outgoing
to url

Answer 5

Everything is the same , nothing changes

Answer 6

AWS has no standard means to deny outgoing EC2 traffic based on hostname. Security Groups, in principle, cannot prohibit traffic (only allow), NACls work at the TCP level.
besides the iptables mentioned above, you have several other options:
1. use a forward proxy and filter traffic directly on it (
2. AWS WAF (not 100% sure, but filtering is there in theory), but this will require AWS ELB