ECS: Hvordan legge til eller fjerne en DNS-server

摘要: Denne artikkelen viser hvordan du endrer ECS DNS-konfigurasjonen.

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说明

Viktig merknad: ECS-funksjonalitet er svært avhengig av riktig DNS-oppløsning. Hvis DNS ikke fungerer som den skal, kan det føre til at Data ikke er tilgjengelig (DU).

Før du endrer DNS-innstillingene, må du alltid bekrefte med kunden.

Merk: En ny funksjon er utgitt i xDoctor 4-8.104.0 og nyere. Dette er nå automatisert med xDoctor for raskt å forsøke å oppdage den potensielle årsaken til xDoctor RAP075 feil. Hvis skriptet ikke klarer å rette opp xDoctor RAP075-feilene, gir det en detaljert oppsummering av funnene.

Hvis du vil ha mer informasjon, kan du følge artikkelen ECS: ObjectScale: Slik kjører du KB-automatiseringsskript (autopilot) (du må logge på som registrert Dell-kundestøttebruker for å lese denne artikkelen). Hvis du ikke kan oppgradere til xDoctor 4.8.104 eller nyere, følg håndboken i denne artikkelen.

Prosess:

  1. Slik finner du hovednoden til racket:
Kommando: 
# ssh master.rack
Eksempel: 
admin@ecsnode5:~>  ssh master.rack
admin@ecsnode1:~>
  1. For å finne NAN IP, kan du bruke IP-adressen som er identifisert i varselet eller fra getclusterinfo -i for målet ditt med dette skriptet:
Kommando: 
# getclusterinfo -i
Eksempel: 
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. Kjør automatiseringskommandoen fra hovednoden med xDoctor 4-8.104.0 og nyere.  Denne automatiseringen er menydrevet med valideringstrinn gjennom hele utførelsen.

Merk: Følgende valideringer finner sted før du legger til den nye IP-adressen til DNS-serveren:

    • Valider videresendt DNS-oppslag.
    • Valider omvendt DNS-oppslag.
    • Valider og vis manglende samsvar mellom DNS-oppslag.

Kommando:

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

Eksempel: (I dette eksemplet jobber 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 for automatisering av skript:

  1. Velg alternativet du vil gjøre Legg til en DNS-server i konfigurasjonen eller Fjern en DNS-server fra konfigurasjonen.
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. Endring av DNS IP-konfigurasjon. 
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. Endre DNS IP-konfigurasjon ->(1) Legg til en DNS-server i konfigurasjonen.
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. Endre DNS IP-konfigurasjon ->(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. Endre konfigurasjon av DNS-søk.
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. Endre konfigurasjon av DNS-søk. -> (1) Legg til et DNS-søkedomene.
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. Endre konfigurasjon av DNS-søk. -> (2) Fjern et DNS-søkedomene
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
******************************************************************************
:

Manuell inndeling

I tilfelle skriptet mislykkes:

Slik legger du til IP-er og DNSSearch i DNS-konfigurasjonen:

Bruk setrackinfo -a for å konfigurere DNS-serveren. Gjenta kommandoen for hver DNS-server hos kunden (eller atskilt med mellomrom). 
# 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
Bruk setrackinfo -a for å konfigurere DNS-søk. Vi må kjøre kommandoen én gang for hver spesifikasjonsrekkefølge av mest spesifikk til minst spesifikk. 
# sudo setrackinfo -a DNSSearch <DNS_Search_Specification>

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

Slik fjerner du IP-adresser fra DNS-konfigurasjon:

Bruk setrackinfo -d for å fjerne én eller flere fra en liste (gjelder DNSServer eller DNSSearch) 
Example:
# sudo setrackinfo -d DNSServer x.x.x.x y.y.y.y

其他信息

Hvis du vil ha informasjon om NTP-konfigurasjon, kan du se KB ECS: Slik legger du til eller fjerner en NTP-server.

受影响的产品

ECS Appliance

产品

ECS Appliance, Elastic Cloud Storage
文章属性
文章编号: 000019614
文章类型: How To
上次修改时间: 24 7月 2025
版本:  8
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