stop using another proxy server

RouterOS Beginner Basics
1

Hi
I have a mikrotik server 4.11 it work with webproxy and my users
works without using proxy server.

some of my users uses an external proxy server so they bypass
my download and sites filters.

How to prevent my users from using another proxy server ???

2

Block it in firewall

3

Sorry how to block it from firewall ( I need the role )

4

Block external proxy’s IP address.
Here are the basic examples how to configure firewall:
http://wiki.mikrotik.com/wiki/Manual:IP/Firewall/Filter#Basic_examples

5

I check the url you send but there is nothing about external proxy ???

6

Assuming that the proxy has as IP address of 1.1.1.1:

/ip firewall filter
add chain=forward dst-address=1.1.1.1 action=drop
7

Thanks for every one who respond to my case.

But the problem is that if I drop one proxy server ( say 1.1.1.1 ) today,
Tomorrow he will find another one and use it.

I need a code to prevent using any external proxy server ?

8

Your other option is to redirect the common proxy ports to your router to force him to use your proxy.

/ip firewall nat
add chain=dstnat action=redirect to-port=8080 protocol=tcp src-address=192.168.1.0/24 dst-port=8080 dst-address-type=!local

I’m not sure what other common proxy ports are there.

The other option is to just drop connections to the common proxy ports

/ip firewall filter
add chain=forward action=drop protocol=tcp dst-port=8080 src-address=192.168.1.0/24

If the end user finds another proxy with uncommon proxy ports available, you’re still in the same situation though.

9

how to stop all proxy servers with firewall plz help me my users is using many proxy servers like zenmate, hotspotsheild & etc…

10

how to stop all proxy servers with firewall plz help me my users is using many proxy servers like zenmate, hotspotsheild & etc…