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Specifying SSH port in Ansible Inventory

There may be some instances where you set a custom port for SSH on your network device. If ssh port for hosts is different than the default port 22, it can be specified in the inventory file with colon (:) after hostname. #vi inventory # Inventory file for Ansible [XE] ios-xe-mgmt.cisco.com:8181 ios-xe-mgmt-latest.cisco.com:8181 [XR] sbx-iosxr-mgmt.cisco.com:8181

Ansible-Playbook to display output of multiple show commands (using stdout_lines with Loop)

In this playbook, we we'll see how we can get display of multiple show commands in stdout_lines format. We can make use of loops (or with_items) for submitting multiple commands, but debug output with stdout_lines does not gives the formatted result as it would give for single command. So in case of multiple commands, we can debug the output of each command separately in stdout_lines format.

Export or Backup Azure Virtual Networks or Subnet information into CSV using PowerShell

There may be times when you want to get a report that contains information of all VNETS along with their subnets and address prefixes. You might have question, how to export or backup Azure VNET or subnets information into CSV. This script will export Azure Virtual Network information along with subnets and address prefixes of all Active subscriptions into a CSV.

Order of preference of attributes in BGP The order of preference varies based on whether the attributes are applied for inbound updates or outbound updates. For inbound updates the order of preference is: route-map filter-list prefix-list, distribute-list For outbound updates the order of preference is: prefix-list, distribute-list filter-list route-map NOTE: The attributes prefix-list and distribute-list are mutually exclusive, and only one command (neighbor distribute-list or neighbor prefix-list) can be applied to each inbound or outbound direction for a particular neighbor. Scenario: We own the AS500 and advertising a network block of 192.0.2.0/24 and 180.179.179.0/16 to two different ISPs. Objectives: Configure router R1 to establish eBGP neighbor relationship with ISP1. Configure router R1 to establish eBGP neighbor relationship with ISP2. Advertise 192.0.2.0/24 ...

There could be many use cases where you may want to export Azure route tables into CSV. Here is the PowerShell script that you can use to export Azure Route Tables into CSV using PowerShell script. This script will export Azure Route Tables along with routes of all Active subscriptions into a CSV.

Export or Backup Azure Network Security Groups into CSV using PowerShell

There could be many use cases where you may want to export Network Security Groups into CSV. You might have question, how to export or backup Azure Network Security Groups into CSV. Here is the PowerShell script that you can use to export Azure Network Security Groups into CSV using PowerShell script. This script will export Network Security Group along with rules of all Active subscriptions into a CSV.

Understanding how traffic is flowing in NSX environment is an important aspect to successfully maintain and troubleshoot networks having NSX. In this post we'll understand hop-by-hop flow of traffic in East-West and North-South directions. East-West: VMs on Same Subnet, Same Host VM-1 has IP address 172.16.20.6 and VM-2 has IP address 172.16.20.7 VM-1 vNIC è Logical Switch (Segment ID 5002) è VM-2 vNIC

Ansible Playbook for Network OS Upgrade with pre and post checks

You have 100s of network switches or routers that you need to upgrade. How much time would it take for you to do the upgrades? There are a lot number of sub-tasks involved while upgrading IOS image of a Cisco router or a switch. This time of upgradation can be reduced through automation from various Enterprise Configuration Management tools that also have ability to upgrade network OS. Though these tools give an easy to use graphical interface, but this requires you to have appropriate license and also restricts you to customize your upgrade process.

There may be times when you might want to use Google Chrome and do not wish to use the proxy settings for which you are bound to use in Internet Explorer because of your company policies. If you try to change proxy settings in Google Chrome, by default it will open the System Internet Properties dialogue box, and most of the times, change in proxy setting options is restricted by domain group policy. So here is an alternate way to remove or disable proxy settings in Google Chrome. 1. Right click the GoogleChrome.exe and create it's shortcut. 2. Open the properties of the shortcut of GoogleChrome.exe created in previous step. 3. Here you have to edit the Target of this shortcut. You have to add --proxy-server="" after the existing path. You are done. Now enjoy the web browsing without any restrictions.

In this post we'll be setting up a VIP with a backend pool of three nodes. We have details of backend node IP addresses, which are given by developer team, and VIP address is allocated/secured by us. In our last post, we looked at F5 BigIP Initial Setup and Configuration . First thing first, so lets create an A record in DNS for application FQDN pointing to Virtual Server IP address.

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NetworkGalaxy - by Prashant Sahu