Step 1 – Navigate to DNS. Step 2 – Set Allow Remote Requests. Step 3 – Click on Static. Step 4 – Click + and add Static DNS. Step 5 – Now open terminal and test Static DNS. When you ping www.google.com mikrotik will redirect to 192.168.0.1. This is very usefully when you want to […]

I’ll be logged in as root. Step 1 – Show your HDD with the following command. fdisk -l Disk /dev/sda: 500.1 GB, 500106780160 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976771055 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 […]

One of the many fantastic features provided by the Mikrotik RouterOS system is the ability to differentiate and independently prioritise traffic passing through the system based on a wide variety of criteria including source and destination address and port, traffic type and protocol, and even application. A common requirement taking advantage of this funtionality is […]

This topic I will I will explain and show: Firewall for Brute-force attack – SSH, TELNET Firewall for Brute-force attack – WINBOX Firewall for Brute-force attack – FTP Detect Port scanner Drop icmp (ping) Allow connect via PPtP Add Ip Address in Blacklist in Mikrotik Firewall for Brute-force attack – SSH, TELNET, WINBOX Step 1 […]

L2TP is a secure tunnel protocol for transporting IP traffic using PPP. L2TP encapsulates PPP in virtual lines that run over IP, Frame Relay and other protocols (that are not currently supported by MikroTik RouterOS). L2TP incorporates PPP and MPPE (Microsoft Point to Point Encryption) to make encrypted links. The purpose of this protocol is […]

19 Theme – How to connect additional Mikrotik to MAIN with VPN and build one big private networks

Fail2ban is an intrusion prevention framework written in the Python programming language. It is able to run on POSIX systems that have an interface to a packet-control system or firewall installed locally for example, iptables or TCP Wrapper. Fail2ban operates by monitoring log files for selected entries and running scripts based on them. Most commonly […]

I’ll be logged in as root. You have to install: Install the prerequisite packages Configure server Configure DNS record Download and Install Zimbra Install the prerequisite packages: Step 1 – Update repositories. root@mail:/# apt-get update root@mail:/# apt-get upgrade Step 2 – Install the prerequisite packages root@mail:/# apt-get install libgmp10 libperl5.18 libaio1 unzip pax sysstat sqlite3 […]

I’ll be logged in as root. If you have lockou or closed mailbox you can not export the mailbox content. You have to check mailbox status. Step 1 – Login as Zimbra. root@mail:/# su – zimbra Export Script Step 2 – Create file in which I will include the script for export . zimbra@mail:~$ touch […]