Configuring Port Security on Cisco Catalyst 3750 Switch interface GigabitEthernet1/0/33 description test interface switchport access vlan 13 switchport mode access switchport port-security maximum 50 switchport port-security violation restrict switchport port-security mac-address sticky switchport port-security
DHCP Snooping in Cisco Switch – By default all ports are untrusted when feature is enabled ip dhcp shooping ip dhcp snooping database flash:/snoopy.db ip dhcp shooping vlan 18 interface GigabitEthernet1/0/33 ip dhcp snooping limit rate 10 ip dhcp snooping trust show ip dhcp snooping show ip dhcp shooping binding more flash:/snoopy.db
Suppose we need to configure following IPv4 paratmeters: IP address: 10.10.10.1 Netmask: 255.255.255.0 Gateway: 10.10.10.254 First we need to identify our interface. Parameter “-a” command will show all interfaces even if they are down. ifconfig -a We will use interface ens160. Ip configurations needs to be done with super user privilages. Following command will set Ip and netmask: sudo ifconfig eth1 10.10.10.1 netmask 255.255.255.0 broadcast 10.10.10.255 Short form of the command could also be used. But it will set the…
Today I will explain Linux permissions and how to modify them. Following pictures explain how its presented in cli Another good example taken from google First character represents the type of object in our case its file. In case of folders “d” is written instead of “-” Next 9 characters allocated to permissions 3 characters for each group. Thera 3 access types in Linux: r – read w – write x – execute We can check file permissions by issuing…
My first blog post will be about domain rename in Microsoft Active Directory Domain. We have test domain Bigapple.local which we will rename to Bigapple.main 1. First we need to install at least AD DS and AD LDS tools RSAT from Add Roles and Features 2. Create new Primary AD integrated DNS zone corresponding to the new Domain name from DNS Manager. Do not forget to restart Netlogon service from services console so that SRV records for newly created zone…