How to remove DHCP busy lease on Mikrotik

How to remove DHCP busy lease on Mikrotik if you have too much DHCP client sometimes you face lack of the free IP addresses. in this article, we share how to remove DHCP busy lease on Mikrotik using the script. :local busyaddr [ip dhcp-server lease find status=”busy”] :local i :foreach i in $busyaddr do={ /ip dhcp-server lease remove $i; } this is a very simple script. it reads the list of id number when finding the busy… Read More

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How to Configure MikroTik log server

Configure MikroTik log server /ip firewall mangle add action=mark-packet chain=prerouting comment=”Mark Packet Streaming” \ layer7-protocol=streaming new-packet-mark=streaming passthrough=no MikroTik log server in your pc Log receiving in windows PC Configure: 1. System > Logging > + Topic = web-proxy, !debug action=remote ok 2. Action > remote address = 192.168.0.2 (IP of windows PC in which log will store) 3. Install kiwi syslog software in windows PC. 4. Manage > install, manage> start service. Setup > log… Read More

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How to configure VRRP on Juniper

Configure VRRP on Juniper Virtual Router Redundancy Protocol(VRRP) is a network protocol that provides a way to have one or more backup routers when using a statically configured router on the LAN.it use mac address 00-00-5E-00-01-XX. the last byte of XX means Virtual Router Identifier. it uses multicast address  224.0.0.18 and IP protocol number 112.  it can also use for load balancing. it is part of both IPV4 and IPV6 and its Hello timer 1 second, hold time… Read More

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Step by step Linux Boot Process

Linux Boot Process BIOS BIOS means Basic Input/Output System.Bios make some system integrity checks, loads, and executes the boot loader program.It looks for the bootloader floppy, cd-rom, or hard drive. You can press a key (typically F12 of F2,del) during the BIOS startup to change the boot sequence.Once the bootloader program is detected and loaded into the memory, BIOS gives the control to it.only word, BIOS loads and executes the MBR boot loader. MBR MBR means Master… Read More

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How to configure vrrp on mikrotik

Virtual Router Redundancy Protocol(VRRP) is a network protocol that provides a way to have one or more backup routers when using a statically configured router on the LAN.it use mac address 00-00-5E-00-01-XX. the last byte of XX means Virtual Router Identifier. it uses multicast address  224.0.0.18 and IP protocol number 112.  it can also use for load balancing. it is part of both IPV4 and IPV6 and its Hello timer 1 second, hold time 3 second. it supports… Read More

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How to Configure HSRP on Cisco

Hot Standby Protocol(HSRP) is a network protocol that provides redundancy in router networks for different VLANs. HSRP is a Cisco proprietary protocol. its used UDP port 1985 and Multicast address 224.0.0.102( V2) and 224.0.0.2 ( V1).HSRP MAC address Format: 0000.0c07.ACxx for redundancy protocol others vendor used VRRP(Virtual Router Redundancy Protocol) HSRP ensures only a single router is forwarding packets that called active router on behalf of the virtual router at any given time. A standby router is ready to become the… Read More

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How to create LVM on Linux

Create LVM on Linux Logical Volume Manager(LVM) is a storage device management system for Linux.If the server needs more space create LVM and extend space. also, you can reduce space from the server using LVM. in this article we share how to configure LVM on Linux. [root@web /]# fdisk -l Disk /dev/sda: 17.2 GB, 17179869184 bytes 64 heads, 32 sectors/track, 16384 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Sector size (logical/physical):… Read More

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How to configure SSH on Juniper

configure SSH on Juniper Secure Shell (SSH) is a Network Protocol that provides encrypted data between you and your device over a secure session. SSH uses TCP port 22. in this article we share how to configure SSH on juniper. user@test# set system services SSH user@test#commit user@test#Show system { services { SSH; }   Finally, check SSH Service user@test> ssh root@192.168.1.1 root@192.168.1.1’s password: — JUNOS 11.2R5.4 built 2017-01-12 08:29:01 UTC root@test%    

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How to configure DHCP server on cisco

Configure DHCP Server Cisco Dynamic Host Configuration Protocol(DHCP) is a server that automatically provides IP address in the Host machine. when the device is turned on the DHCP mode and connected to the network that has DHCP server. The host will send DHCP request to the server. after DHCP request reached on the server and server provide IP address for the host. in this article, we share how to configure DHCP server on Cisco. Cisco DHCP… Read More

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