NetScaler VPX on Nutanix Acropolis Hypervisor - FAQs
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What is the minimum memory required for VPX on Nutanix?
A minimum of 4 GB of memory is required for VPX on Nutanix.
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Does VPX on Nutanix support disk expansion beyond 20 GB?
Yes. To increase disk space on NetScaler VPX deployed on Nutanix AHV, ensure that the required additional disk space is allocated during the initial provisioning stage. Nutanix AHV does not support increasing the disk size after the VM is provisioned.
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Is secondary disk supported on Nutanix?
No, secondary disk support is not currently available. Support is planned for future releases.
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Is sysctl for NetScaler variables supported on Nutanix?
No. It is recommended to use specific NSCLI commands to retrieve the same data. Instead of using
sysctl netscaler.version, use the NetScaler CLI commandshow version. -
How do I change the hostname of NetScaler on Nutanix?
The host name can be set using the
set hostname <hostName>command. -
Which disk partitions are persisted across reboots and upgrades/reinstalls in VPX Nutanix?
Only files in the following directories are persisted across reboots:
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/nsconfigthat points to the/flash/nsconfigdirectory -
/vardirectory
All other files are deleted across reboots.
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How do I restore accidentally deleted system files (e.g., binary files in /usr/sbin) in VPX Nutanix?
Reboot NetScaler and select “Re-install NetScaler firmware version 14.1 x.x” during boot. This action does not affect any saved configuration.
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How do I configure custom log rotation in VPX Nutanix?
On Nutanix, log rotation is managed using the log rotate Linux utility. The configuration file is located at:
/etc/logrotate.d/blx-syslog -
Is cloud-init supported on Nutanix?
Yes, but currently only custom scripts are supported. Guided scripts are not yet supported.
Examples for cloud-init scripts:
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Example 1: Empty
cloud-initscript. This triggers DHCP, and if a static or DHCP IP address is configured on the first interface, it is automatically configured as the NetScaler IP address.#cloud-config <!--NeedCopy--> -
Example 2: Sets the host name to “vpx-nutanix”
#cloud-config fqdn: vpx-nutanix <!--NeedCopy-->
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Can I auto-assign NSIP from the primary static/DHCP IP configured on the first interface in VPX Nutanix?
Yes, but you must specify a dummy
cloud-initconfiguration in the custom configuration while creating the instance. -
How do I configure domain name system (DNS) for NetScaler on Nutanix?
Use the
add dns nameservercommand to configure DNS. -
How do I debug DNS issues on VPX Nutanix?
DNS utilities such as dig, nslookup, and host are not currently available on NetScaler VPX for Nutanix. Use the
systemd-resolvecommand to verify DNS resolution.Example:
root@ns# systemd-resolve www.google.com www.google.com: 142.251.10.105 -- link: ns2 142.251.10.147 -- link: ns2 142.251.10.104 -- link: ns2 142.251.10.103 -- link: ns2 142.251.10.99 -- link: ns2 142.251.10.106 -- link: ns2 2404:6800:4003:c0f::63 -- link: ns2 <!--NeedCopy--> -
Which text editor is available in VPX on Nutanix?
Vim is available as the text editor. The “vi” command is a symbolic link to the vim binary.
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How do I copy lines to clipboard from a file opened in vim through an SSH session?
Hold down the Shift key, left-click, and drag to select the text you want to copy.
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How do I paste content in the vim editor?
Enter insert mode using “i” and paste using the “Shift + Insert” key combination.
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What’s the recommended way to configure IP addresses on Nutanix interfaces in an overlay subnet when using High Availability (HA) with NetScaler?
When using a Nutanix overlay subnet, you can assign both primary and secondary IP addresses to a network interface. However, these IPs are tied to the specific node’s interface and do not support HA failover if used as Virtual IP addresses (VIPs) or Subnet IP addresses (SNIPs).
To ensure proper HA behavior with NetScaler, follow these best practices:
- Assign only one (mandatory) IP address to each interface in the Nutanix overlay subnet.
- Do not use this IP address for any configuration that is shared across HA nodes (for example, VIP or SNIP).
- You can use this IP address as an NetScaler IP (NSIP), since NSIP is node-specific and does not require failover.
- Configure VIPs and SNIPs manually on the NetScaler appliance, not on the Nutanix interface.
- Make sure to configure the appropriate VLAN settings on NetScaler for correct routing and communication.
Using this approach avoids HA issues and ensures a clean separation between node-specific and shared IP configurations.
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Is the
nsapimgrcommand supported on Nutanix?Yes, except for the call option. The call option with
nsapimgris not currently supported. -
Is tagged VLAN supported with NetScaler VPX on Nutanix AHV?
Yes, NetScaler VPX supports tagged VLAN provided AHV hypervisor has the configurations mentioned in VLAN for Guest VMs.