Sometimes we want to prevent a harmful IP address.

Because the IP address we want to prevent can lead us to a malicious site or application.

Now we’ll explain how to do this step-by-step below.

First step; IP> Firewall> Address List>Name  following

Second step; IP> Firewall> General>forward  following

Third step; IP> Firewall> Advanced>Destion Address List  following

Last step; IP> Firewall> Action>drop  following

/ip firewall address-list
add address=1.1.1.1 list=Blacklist
add address=2.2.2.2 list=Blacklist
/ip firewall filter
add action=drop chain=forward comment=Blacklist dst-address-list=Blacklist

I hope it has been a useful article.

It is important for security to change the password from the Mikrotik default.

So what do we have to do for it?

We can change one from the winbox interface.
The other method can also be changed from the new terminal in winbox.

The user is first added from the system.

Then click Change password.

/password old-password="" new-password="NewPASSWORD" confirm-new-password="NewPASSWORD"

If we want the users we create to enter only from a specific IP address.

Putty with antenna IP and Port are written. 22 port instead of 443 port on the Router side
It is written. In this way, the antenna is reached.

UBNT UBNT for airOS 8.5 version of airOS

touch/etc / persistent/ ct save save  reboot reboot

UBNT post airOS version 8.5

sed -i 's/\(countrycode=\).*/\1511/g' /tmp/system.cfg && save && reboot

I hope it has been a useful article.

Things to do step by step;
We will shut down the DHCP Server, NAT, and Firewall on our ADSL Modem.
We will get the ADSL Connection mode from the ADSL Modem to BRIDGE MODE.
We will give IP to Local Interface on Mikrotik.
We will define the PPPoE Client for ADSL connection.
We’ll start the NAT definition and start sharing.

I cannot show here how to turn off DHCP Server, NAT, and Firewall on your ADSL Modem because all modems are different. You will find these settings in your own modem.

Mikrotik Load Balancing 2 WAN 2 LAN with Failover – Load balance 2 WAN on Mikrotik Router is a technique to distribute the traffic load on the two-paths connection in a balanced manner so that traffic can run optimally, maximize throughput, minimize response time and avoid overload on one connection path. This experiment, I have 2 internet connections different IP WAN and 2 LAN. I‘ve tried it, load balancing and failover can run normally. You can see the Mikrotik script below.