VTP stands for VLAN Trunk Protocol. VTP is used to propagate VLAN cconfiguration. VTP advertisements are multicasted. They are sent every 5 minutes or whenever there is a change in VLAN configuration. VTP revision number is included in these advertisements. Whenever a client receives a … “Basic VTP”
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This is a simple DHCP configuration on a Layer 3 Switch: SW1(config)# ip dhcp excluded-address 10.10.10.1 SW1(config)# ip dhcp pool VLAN20POOL SW1(dhcp-config)# network 10.10.10.0 255.255.255.0 SW1(dhcp-config)# default-router 10.10.10.1 SW1(dhcp-config)# lease 2 Lease is in hours. Default-router IP indicates the default hop for the 10.10.10.0/24 network. … “Basic DHCP Configuration”
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When a DNS query arrives at a F5 GTM/DNS, this is the processing order for the DNS query. 1 – DNS Query is processed by the Listener. 2- If Recursion Desired (RD) flag is set in the incoming query and if the DNS Profile associated … “F5 GTM – DNS Query Processing Order”
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$ cat ansible.cfg [defaults] hostfile = ./hosts host_key_checking = False timeout = 5 log_path = ./logfile.txt forks = 50 gathering = smart [ssh_connection] pipelining = True The above file shows the content of ansible.cfg file. I have added the following to make my playbook run … “Ansible Playbook Optimizing”
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While using Ansible 2.2 and Python 3.x, I ran into the following error: ERROR! Unexpected Exception: No module named ‘urlparse’ Workaround: 1. Downgrade Python to 2.x 2. If there is no root level permission, use virtual env: virtualenv –python=python2.7
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I have utilized the following steps to install terraform in Ubuntu 16.04 Download Terraform for Linux 64 bit version. Save the downloaded version in a specific folder. (Example: /home/user/terra) Within the folder where the downloaded version is saved, use “unzip” command: unzip terraform Set the … “Terraform in Ubuntu”
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This is a simple iRule that performs redirects based on HTTP Referer: when HTTP_REQUEST { if { ([HTTP::header exists “Referer”]) and ([URI::host [HTTP::header value Referer]] eq”special.com”) } { HTTP::redirect https://www.site.com/special-client/ } else { HTTP::redirect https://www.site.com/generic-client } }
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What? Ansible is a simple IT automation tool. Ansible exists as CLI & GUI. GUI is called the Ansible Tower and Ansible, Inc., which is owned by RedHat, officially supports this. Controlling Nodes: The Network infrastructure is managed from these Controlling Nodes. In an Enterprise environment, Controlling … “Ansible Components”
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Kubernetes is Greek for Pilot or Helmsman. It is primarily used as an orchestration tool for containers. Kubernetes Deployment (KD): Deployment is responsible for creating and updating instances of application. Kubernetes Master (KM): KM schedule the application instances that was created by the KD onto … “Kubernetes Intro”
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