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—Recursive lookup DNS server, resolve this NSLOOKUP on behalf of the client. Resolve . Resolvce .com Resolve google.com. Resolve www.google.com. —Authoritive zone DNS server hosting that domain name —Conditional Forwarders For specfic domain name spaces, we can say Hosts using this DNS server resolve to DNS server x.x.x.x directly. Manual metheod Conditional forwarders are used […]

—–Export all leases netsh dhcp server dump > test.csv —Subnet delay in milliseconds If you have 2 DHCP Servers, you can make the secondary one have a 10ms delay this will mean that the primary server always responds to the Broadcast DORA. —Parent Domain Automatically add the domain name cisco.com when accessing server hostnames eg. […]

Create a VLAN Test-dell#configure terminal Test-dell(conf) #interface vlan 100 Test-dell(conf) #description Test-Vlan Test-dell(conf) #end Test-dell#show vlan Assign a VLAN to a port Test-dell#configure terminal Test-dell(conf) #interface TenGigabitEthernet 1/2 Test-dell(conf-if-te-1/2)#switchport Test-dell(conf-if-te-1/2)#no shutdown Test-dell(conf-if-te-1/2)#exit Test-dell(conf) #interface vlan 100 Test-dell(conf-if-vl-100)# untagged tengigabitethernet ½ Test-dell(conf) #end Test-dell#show vlan Trunk Port (Tagged) Test-dell#configure terminal Test-dell(conf) #interface TenGigabitEthernet 1/2 Test-dell(conf-if-te-1/2)#switchport Test-dell(conf-if-te-1/2)#no […]

—-Default username password user: cumulus password: cumulus Older than 4.1 –Creating a loopback /etc/cumulus/ports.conf 8=loopback Makes port 8 a loopback cumulus@switch:~$ sudo systemctl restart switchd.service Any changes to a .conf file requres the restart switchd.service Restarting the switchd service causes all network ports to reset in addition to resetting the switch hardware configuration. —Save changes […]

Even if every APIC in the Cluster goes down, there will be no impact to the production traffic. This is because the Forwarding plane is handled by the nodes, and the control plane will be offline with APIC. Unlike CatOS, where everything is allowed by default. Nexus must be configured to allow all destinations. Usually […]

///Configure default settings Default credentials to login Cisco or cisco Cisco or cisco Other Models admin admin QUIT Shell Control + a +q hw-module session 0/3 apciscoshell enable ap-type capwap interface Wlan-GigabitEthernet0/1/8  switchport access vlan 100  switchport mode access  spanning-tree portfast //Reset CAPWAP Config capwap ap erase all Connect to a wireless controller

How to Simulate a Break Key Sequence Break key sequence simulation is useful if your terminal emulator  does not support the break key, or if a bug does not allow your terminal  emulator to send the correct signal. Note: The hyperterminal under Windows NT had this behavior in the past. Complete these steps to simulate […]

https://tmgmatrix.cisco.com Wondering if your SFP is supported with your new switch?This is the offical Cisco Matrix

Clearing an SCCM advertisement SCCM Server-> Client Centre for configuration Manager -> PC0XXXX Agent settings -> Reset WMI Repository

—msfvenom and sessions Because many clients are behind a firewall, we need the client to initiate the session outbound to us By creating a payload exe file we can create a session to gain access to a computer. Step 1. Make sure Metasploit is connected to the Postgres database db_status Service postgresql start msf > msfdb […]