Troubleshooting
Problem
You changed the name of the IBM Security QRadar SOAR App Host server and notice multiple entries for the same IP address when viewing via manageAppHost showconfig.
-bash-4.2$ sudo manageAppHost showconfig
Validity: [ From: Wed Mar 23 16:03:54 EDT 2022, To: Sat Mar 20 16:03:54 EDT 2032 ]
App Registry: quay.io
Proxy Settings: none
DNS Settings:
192.168.22.17 apphost.localdomain
Example:
Current hostname:
-bash-4.2$ sudo hostname
apphost.localdomain
Change hostname to test1 and restart k3s
-bash-4.2$ sudo hostnamectl set-hostname test1
-bash-4.2$ sudo systemctl restart k3s
-bash-4.2$ sudo hostnamectl set-hostname test2
-bash-4.2$ sudo systemctl restart k3s
Check config
-bash-4.2$ sudo manageAppHost showconfig
Validity: [ From: Wed Mar 23 16:03:54 EDT 2022, To: Sat Mar 20 16:03:54 EDT 2032 ]
App Registry: quay.io
Proxy Settings: none
DNS Settings:
192.168.22.17 apphost.localdomain
192.168.22.17 test1
192.168.22.17 test2
Resolving The Problem
First is to determine what is the top node being used in conjunction with the App Host hostname
-bash-4.2$ sudo kubectl top node
NAME CPU(cores) CPU% MEMORY(bytes) MEMORY%
test2 194m 9% 1920Mi 24%
test1 <unknown> <unknown> <unknown> <unknown>
apphost.localdomain <unknown> <unknown> <unknown> <unknown>
-bash-4.2$
Next is to remove the unwanted nodes displaying <unknown>, in this case test1 and apphost.localdomain
-bash-4.2$ sudo kubectl delete node test1
node "test1" deleted
-bash-4.2$ sudo kubectl delete node apphost.localdomain
node "apphost.localdomain" deleted
-bash-4.2$
Check config
Validity: [ From: Wed Mar 23 16:03:54 EDT 2022, To: Sat Mar 20 16:03:54 EDT 2032 ]
App Registry: quay.io
Proxy Settings: none
DNS Settings:
192.168.22.17 test2
-bash-4.2$
Document Location
Worldwide
[{"Type":"MASTER","Line of Business":{"code":"LOB24","label":"Security Software"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSA230","label":"IBM Security QRadar SOAR"},"ARM Category":[{"code":"a8m0z0000001jTpAAI","label":"Integrations-\u003EAppHost"}],"ARM Case Number":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Versions"}]
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Document Information
Modified date:
27 April 2022
UID
ibm16575517