Citrix Netscaler freezes

[Nataliya Shimko]

Good day, Citrix Netscaler VPX is used as a  web applications firewall and the citrix netscaler freezes periodically and web applications do not work, while the graphical interface works. Helps reboot. After reboot, it works for several days and then freezes again. Nothing is written in the logs. What could be the cause of freezes and how to solve it ?

[CarlStalhood]

What build are you running?

 

Have you opened a case with Citrix Support?

[Raman Kaushik]

Can you elaborate on what do you mean by freezing ? What are the symptoms?

 

also , is this running on VMware ?

do you have periodic backups or snapshots taken ?

[Nataliya Shimko]

we use CitrixNetScaler VPX (200) Platform: NetScaler Virtual Appliance 450010.

[CarlStalhood]

Login to NetScaler. On the top right, click your name. What version does it show?

 

For VPX, what hypervisor? If vSphere, is your NIC set to VMXNET 3?

[Nataliya Shimko]

the graphical interface works fine, that is, you can manage citrix without any problems, but web applications that protect the citrix netscaler do not work. I do a reboot through a graphical interface and applications are restored

[Raman Kaushik]

Okay it is little better,however can you now elaborate on applications do not work?

 

what is the error message you get ?

are you running HA or stand-alone ?

[Nataliya Shimko]

NS12.1 48.13.nc 

we use vSphere, NIC E1000

[Nataliya Shimko]

 

In the browser, this is displayed

[Nataliya Shimko]

we work in standalone mode

[Raman Kaushik]

2 hours ago, Nataliya Shimko said:

this doesn't look like NetScaler gateway hosted application.

 

It looks more of a load balanced application.

 

Would be hard to say what causes it without a packet capture.

I would start by confirming SNIP to backend server communication.

 

2 hours ago, Shimko said:

In the browser, this is displayed

 

[Nataliya Shimko]

can you tell me how to do that citrix did not delete the logs, because nothing is written in the logs after the reboot