ECS: Hur man lägger till eller tar bort en DNS-server

Summary: Den här artikeln visar hur du ändrar ECS DNS-konfigurationen.

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Instructions

Viktig information: ECS-funktionalitet är starkt beroende av korrekt DNS-matchning. Om DNS inte fungerar korrekt kan det leda till ett DU-tillstånd (Data Unavailable).

Innan du ändrar DNS-inställningar ska du alltid bekräfta med kunden.

Obs! En ny funktion släpps i xDoctor 4-8.104.0 och senare. Detta är nu automatiserat med xDoctor för att snabbt försöka upptäcka den potentiella orsaken till xDoctor RAP075-fel. Om skriptet inte kan korrigera xDoctor RAP075-felen ger det en detaljerad sammanfattning av resultaten.

Mer information finns i artikeln ECS: ObjectScale: Köra KB Automation-skript (autopilot) (inloggning som registrerad Dell-supportanvändare krävs för att visa den här artikeln). Om du inte kan uppgradera till xDoctor 4.8.104 eller senare, följ avsnittet Manuell i den här artikeln.

Process:

  1. Så här hittar du huvudnoden för racket:
Kommando: 
# ssh master.rack
Exempel: 
admin@ecsnode5:~>  ssh master.rack
admin@ecsnode1:~>
  1. Om du vill hitta NAN-IP-adressen kan du använda IP-adressen som identifieras i aviseringen eller från getclusterinfo -i för ditt mål med det här skriptet:
Kommando: 
# getclusterinfo -i
Exempel: 
admin@ecsnode1:~> getclusterinfo -i

Registered Racks
================

Ip Address        epoxy   seg mac             seg color    seg id    NAN Hostname
===============   =====   =================   ==========   =======   ============
169.254.1.1      False   00:00:00:00:00:00   red          1         provo-red.nanlocal
Node private      Node              Public                                BMC
Ip Address        Id       Status   Mac                 Ip Address        Mac                 Ip Address        Private.4(NAN)    Node Name
===============   ======   ======   =================   ===============   =================   ===============   ===============   =========
192.168.219.1     1        MA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.101   169.254.1.1       provo-red
192.168.219.2     2        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.102   169.254.1.2       sandy-red
192.168.219.3     3        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.103   169.254.1.3       orem-red
192.168.219.4     4        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.104   169.254.1.4       ogden-red
192.168.219.5     5        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.105   169.254.1.5       layton-red
192.168.219.6     6        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.106   169.254.1.6       logan-red
192.168.219.7     7        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.107   169.254.1.7       lehi-red
192.168.219.8     8        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.108   169.254.1.8       murray-red
Status:
M - Master, S - Slave
E - Epoxy
I - Initializing, U - Updating, A - Active
P - On, O - Off
! - Warning/Error list:
    1 -(W) Hostname set to default hostname set by installer


169.254.2.1      False   00:00:00:00:00:00   green        2         tucson-green.nanlocal
Node private      Node              Public                                BMC
Ip Address        Id       Status   Mac                 Ip Address        Mac                 Ip Address        Private.4(NAN)    Node Name
===============   ======   ======   =================   ===============   =================   ===============   ===============   =========
192.168.219.1     1        MA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.101   169.254.2.1       provo-green
192.168.219.2     2        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.102   169.254.2.2       sandy-green
192.168.219.3     3        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.103   169.254.2.3       orem-rgreen
192.168.219.4     4        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.104   169.254.2.4       ogden-green
192.168.219.5     5        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.105   169.254.2.5       layton-green
192.168.219.6     6        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.106   169.254.2.6       logan-green
192.168.219.7     7        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.107   169.254.2.7       lehi-green
192.168.219.8     8        SA       00:00:00:00:00      0.0.0.0           00:00:00:00:00      192.168.219.108   169.254.2.8       murray-green
Status:
M - Master, S - Slave
E - Epoxy
I - Initializing, U - Updating, A - Active
P - On, O - Off
! - Warning/Error list:
    1 -(W) Hostname set to default hostname set by installer

 

  1. Kör automatiseringskommandot från huvudnoden med xDoctor 4-8.104.0 och senare.  Den här automatiseringen är menystyrd med valideringssteg under hela körningen.

Obs! Följande valideringar sker innan du lägger till den nya IP-adressen för DNS-servern:

    • Verifiera DNS-sökning för vidarebefordran.
    • Verifiera omvänd DNS-sökning.
    • Validera och visa DNS-matchningsfel.

Kommando:

# sudo xdoctor autopilot --kb 19614 --target-rack <rack color>

Exempel: (I det här exemplet arbetar vi med rack 1)

admin@ecsnode1:~> sudo xdoctor autopilot --kb 19614 --target-rack red

Using /etc/ansible/ansible.cfg as config file
VERSION: 3.0
Playbook tasks: 66
Role tasks: 28
Total tasks: 94 across 1 host(s)

 

Alternativ för automatiseringsskript:

  1. Välj Alternativ som du vill göra Lägg till en DNS-server i konfigurationen eller Ta bort en DNS-server från konfigurationen.
TASK [Ask user if they want to change DNS IP configuration or DNS search configuration] **********************************************************************************************************************
[Ask user if they want to change DNS IP configuration or DNS search configuration]
******************************************************************************
Please select one of the following options to change DNS IP or DNS search configuration:
******************************************************************************
(1) Change DNS IP configuration.
(2) Change DNS search configuration.

(0) Exit
******************************************************************************"

 

  1. Ändring av DNS IP-konfiguration. 
TASK [Ask user if they want to add or remove a DNS server] ***************************************************************************************************************************************************
[Ask user if they want to add or remove a DNS server]
******************************************************************************
Please select one of the following options to add or remove an DNS server:
******************************************************************************
(1) Add an DNS server to the configuration.
(2) Remove an DNS server from the configuration.

(0) Exit
******************************************************************************
:
    1. Ändra DNS IP-konfiguration ->(1) Lägg till en DNS-server i konfigurationen.
TASK [Ask for DNS server IP if adding] ***********************************************************************************************************************************************************************
[Ask for DNS server IP if adding]
******************************************************************************
Enter the IP of the DNS server you want to add:
******************************************************************************
:
    1. Ändra DNS IP-konfiguration ->(2) Remove an DNS server from the configuration
TASK [Prompt user to select DNS server to remove] ************************************************************************************************************************************************************
[Prompt user to select DNS server to remove]
*******************************************************************************
Enter the letter of the DNS server you want to remove:
*******************************************************************************

(0) Exit
*******************************************************************************
:

 

  1. Ändra DNS-sökkonfiguration.
TASK [Ask user if they want to add or remove a DNS search domain] ********************************************************************************************************************************************
[Ask user if they want to add or remove a DNS search domain]
******************************************************************************
Please select one of the following options to add or remove an DNS search domain:
******************************************************************************
(1) Add a DNS search domain.
(2) Remove a DNS search domain.

(0) Exit
******************************************************************************
    1. Ändra DNS-sökkonfiguration. -> (1) Lägg till en DNS-sökdomän.
TASK [Ask for DNS search domain if adding] *******************************************************************************************************************************************************************
[Ask for DNS search domain if adding]
******************************************************************************
Please enter the DNS search domain you want to add:
******************************************************************************
:
    1. Ändra DNS-sökkonfiguration. -> (2) Ta bort en DNS-sökdomän
TASK [Prompt user to select DNS search domain to remove] *****************************************************************************************************************************************************
[Prompt user to select DNS search domain to remove]
******************************************************************************
Please select the DNS search domain you want to remove:
******************************************************************************
(a) xxxx.xxxx.com

(0) Exit
******************************************************************************
:

Avsnittet Manuell

Om skriptet misslyckas:

Så här lägger du till IP-adresser och DNSSearch i DNS-konfigurationen:

Använd setrackinfo -a för att konfigurera DNS-servern. Upprepa kommandot för varje DNS-server hos kunden (eller separera med blanksteg). 
# sudo setrackinfo -a DNSServer <DNS_Server_IP>

Example:
# sudo setrackinfo -a DNSServer x.x.x.x
# sudo setrackinfo -a DNSServer y.y.y.y
or
# sudo setrackinfo -a DNSServer x.x.x.x y.y.y.y
Använd setrackinfo -a för att konfigurera DNS-sökning. Vi måste köra kommandot en gång för varje specifikationsordning från mest specifika till minst specifika. 
# sudo setrackinfo -a DNSSearch <DNS_Search_Specification>

Example:
# sudo setrackinfo -a DNSSearch corp.dell.com
# sudo setrackinfo -a DNSSearch dell.com

Så här tar du bort IP-adresser från DNS-konfigurationen:

Använd setrackinfo -d för att ta bort en eller flera från en lista (gäller DNSServer eller DNSSearch) 
Example:
# sudo setrackinfo -d DNSServer x.x.x.x y.y.y.y

Additional Information

Information om NTP-konfiguration finns i KB ECS: Hur man lägger till eller tar bort en NTP-server.

Affected Products

ECS Appliance

Products

ECS Appliance, Elastic Cloud Storage
Article Properties
Article Number: 000019614
Article Type: How To
Last Modified: 24 July 2025
Version:  8
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