RAC 11.2.0.3 SACN與DNS配置
本機是雙節點的RAC, SCAN IP為192.168.1.203
[root@node1 ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost
::1 localhost6.localdomain6 localhost6
#node1
192.168.1.191 node1.localdomain node1
192.168.1.193 node1-vip.localdomain node1-vip
172.168.1.11 node1-priv.localdomain node1-priv
#node2
192.168.1.192 node2.localdomain node2
192.168.1.194 node2-vip.localdomain node2-vip
172.168.1.12 node2-priv.localdomain node2-priv
#scan-ip
192.168.1.203 scan-cluster.localdomain scan-cluster
由於資源有限，用節點node1所在的伺服器作為DNS伺服器進行配置
步驟一，安裝bind rpm包
檢查是否安裝了bind包
[root@node1 ~]# rpm -qa | grep bind
bind-utils-9.3.6-16.P1.el5
ypbind-1.19-12.el5_6.1
bind-libs-9.3.6-16.P1.el5
透過yum來安裝bind
[root@node1 ~]# yum install bind
Loaded plugins: rhnplugin, security
This system is not registered with ULN.
ULN support will be disabled.
oel5 | 1.1 kB 00:00
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package bind.x86_64 30:9.3.6-16.P1.el5 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
============================================================================================
Package Arch Version Repository Size
============================================================================================
Installing:
bind x86_64 30:9.3.6-16.P1.el5 oel5 988 k
Transaction Summary
============================================================================================
Install 1 Package(s)
Upgrade 0 Package(s)
Total download size: 988 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : bind 1/1
Installed:
bind.x86_64 30:9.3.6-16.P1.el5
Complete!
[root@node1 ~]# yum install bind-chroot
Loaded plugins: rhnplugin, security
This system is not registered with ULN.
ULN support will be disabled.
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package bind-chroot.x86_64 30:9.3.6-16.P1.el5 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
============================================================================================
Package Arch Version Repository Size
============================================================================================
Installing:
bind-chroot x86_64 30:9.3.6-16.P1.el5 oel5 46 k
Transaction Summary
============================================================================================
Install 1 Package(s)
Upgrade 0 Package(s)
Total download size: 46 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : bind-chroot 1/1
Installed:
bind-chroot.x86_64 30:9.3.6-16.P1.el5
Complete!
[root@node1 ~]# yum install caching-nameserver
Loaded plugins: rhnplugin, security
This system is not registered with ULN.
ULN support will be disabled.
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package caching-nameserver.x86_64 30:9.3.6-16.P1.el5 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
============================================================================================
Package Arch Version Repository Size
============================================================================================
Installing:
caching-nameserver x86_64 30:9.3.6-16.P1.el5 oel5 62 k
Transaction Summary
============================================================================================
Install 1 Package(s)
Upgrade 0 Package(s)
Total download size: 62 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : caching-nameserver 1/1
Installed:
caching-nameserver.x86_64 30:9.3.6-16.P1.el5
Complete!
步驟二，配置named.conf
透過複製named.catching-nameserver.conf檔案來生成named.conf
注意cp命令後面的 -p引數用來確保許可權，生成的named.conf 組屬於為root named
[root@node1]# cp -p /var/named/chroot/etc/named.caching-nameserver.conf /var/named/chroot/etc/named.conf
將127.0.0.1 改成 any
:%s/127.0.0.1/any/g
將 localhost 改成 any
:%s/localhost/any/g
[root@node1 etc]# vi /var/named/chroot/etc/named.conf
//
// named.caching-nameserver.conf
//
// Provided by Red Hat caching-nameserver package to configure the
// ISC BIND named(8) DNS server as a caching only nameserver
// (as a any DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
// DO NOT EDIT THIS FILE - use system-config-bind or an editor
// to create named.conf - edits to this file will be lost on
// caching-nameserver package upgrade.
//
options {
listen-on port 53 { any; };
listen-on-v6 port 53 { ::1; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
// Those options should be used carefully because they disable port
// randomization
// query-source port 53;
// query-source-v6 port 53;
allow-query { any; };
allow-query-cache { any; };
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
view any_resolver {
match-clients { any; };
match-destinations { any; };
recursion yes;
include "/etc/named.rfc1912.zones";
};
步驟三, 建立域
[root@node1 etc]# vi /var/named/chroot/etc/named.rfc1912.zones
在檔案末尾追加下列資訊
zone "1.168.192.in-addr.arpa" IN {
type master;
file "1.168.192.in-addr.arpa";
allow-update { none; };
};
配置正、反解析資料庫檔案
[root@node1 named]# cp -p /var/named/chroot/var/named/named.local /var/named/chroot/var/named/1.168.192.in-addr.arpa
[root@node1 named]# ll
total 40
-rw-r----- 1 root named 426 Jan 14 2011 1.168.192.in-addr.arpa
drwxrwx--- 2 named named 4096 Aug 26 2004 data
-rw-r----- 1 root named 198 Jan 14 2011 localdomain.zone
-rw-r----- 1 root named 195 Jan 14 2011 localhost.zone
-rw-r----- 1 root named 427 Jan 14 2011 named.broadcast
-rw-r----- 1 root named 1892 Jan 14 2011 named.ca
-rw-r----- 1 root named 424 Jan 14 2011 named.ip6.local
-rw-r----- 1 root named 426 Jan 14 2011 named.local
-rw-r----- 1 root named 427 Jan 14 2011 named.zero
drwxrwx--- 2 named named 4096 Jul 27 2004 slaves
在正向解析資料庫檔案localdomain.zone末尾追加
echo "scan-cluster IN A 192.168.1.203" >> /var/named/chroot/var/named/localdomain.zone
[root@node1 ~]# vi /var/named/chroot/var/named/localdomain.zone
$TTL 86400
@ IN SOA localhost root (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
IN NS localhost
localhost IN A 127.0.0.1
scan-cluster IN A 192.168.1.203
配置反向解析資料檔案
[root@node1 ~]# echo “191 IN PTR scan-cluster.localdomain." >> /var/named/chroot/var/named/1.168.192.in-addr.arpa
[root@node1 ~]# vi /var/named/chroot/var/named/1.168.192.in-addr.arpa
$TTL 86400
@ IN SOA localhost. root.localhost. (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS localhost.
1 IN PTR localhost.
191 IN PTR scan-cluster.localdomain. <==191 為節點node1的IP地址地址 192.168.1.191最後一組數字
在節點node1，node2分別新增/etc/resolv.conf檔案
[root@node1 ~]# echo "search localdomain
> nameserver 192.168.1.181" >> /etc/resolv.conf
[root@node1 ~]# cat /etc/resolv.conf
search localdomain
nameserver 192.168.1.181
[root@node2 ~]# echo "search local domain
> nameserver 192.168.1.181" >> /etc/resolv.conf
[root@node2 ~]# cat /etc/resolv.conf
search localdomain
nameserver 192.168.1.181
步驟四，啟動DNS服務
在節點node1上啟動DNS服務
[root@node1 named]# /etc/init.d/named status
rndc: connect failed: 127.0.0.1#953: connection refused
named is stopped
[root@node1 named]# /etc/init.d/named start
Starting named: [ OK ]
[root@node1 named]# /etc/init.d/named status
number of zones: 7
debug level: 0
xfers running: 0
xfers deferred: 0
soa queries in progress: 0
query logging is OFF
recursive clients: 0/1000
tcp clients: 0/100
server is up and running
named (pid 8273) is running...
[root@node1 named]#
步驟五，測試DNS
[root@node1 ~]# nslookup 192.168.1.191
Server: 192.168.1.191
Address: 192.168.1.191#53
191.1.168.192.in-addr.arpa name = scan-cluster.localdomain.
[root@node1 ~]# nslookup scan-cluster.localdomain
Server: 192.168.1.191
Address: 192.168.1.191#53
Name: scan-cluster.localdomain
Address: 192.168.1.203
[root@node1 ~]# nslookup scan-cluster
Server: 192.168.1.191
Address: 192.168.1.191#53
Name: scan-cluster.localdomain
Address: 192.168.1.203
[root@node2 ~]# cat /etc/resolv.conf
search localdomain
nameserver 192.168.1.191
[root@node2 ~]# nslookup scan-cluster
Server: 192.168.1.191
Address: 192.168.1.191#53
Name: scan-cluster.localdomain
Address: 192.168.1.203
[root@node2 ~]#
[root@node2 ~]#
[root@node2 ~]# nslookup scan-cluster.localdomain
Server: 192.168.1.191
Address: 192.168.1.191#53
Name: scan-cluster.localdomain
Address: 192.168.1.203
[root@node1 ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost
::1 localhost6.localdomain6 localhost6
#node1
192.168.1.191 node1.localdomain node1
192.168.1.193 node1-vip.localdomain node1-vip
172.168.1.11 node1-priv.localdomain node1-priv
#node2
192.168.1.192 node2.localdomain node2
192.168.1.194 node2-vip.localdomain node2-vip
172.168.1.12 node2-priv.localdomain node2-priv
#scan-ip
192.168.1.203 scan-cluster.localdomain scan-cluster
由於資源有限，用節點node1所在的伺服器作為DNS伺服器進行配置
步驟一，安裝bind rpm包
檢查是否安裝了bind包
[root@node1 ~]# rpm -qa | grep bind
bind-utils-9.3.6-16.P1.el5
ypbind-1.19-12.el5_6.1
bind-libs-9.3.6-16.P1.el5
透過yum來安裝bind
[root@node1 ~]# yum install bind
Loaded plugins: rhnplugin, security
This system is not registered with ULN.
ULN support will be disabled.
oel5 | 1.1 kB 00:00
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package bind.x86_64 30:9.3.6-16.P1.el5 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
============================================================================================
Package Arch Version Repository Size
============================================================================================
Installing:
bind x86_64 30:9.3.6-16.P1.el5 oel5 988 k
Transaction Summary
============================================================================================
Install 1 Package(s)
Upgrade 0 Package(s)
Total download size: 988 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : bind 1/1
Installed:
bind.x86_64 30:9.3.6-16.P1.el5
Complete!
[root@node1 ~]# yum install bind-chroot
Loaded plugins: rhnplugin, security
This system is not registered with ULN.
ULN support will be disabled.
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package bind-chroot.x86_64 30:9.3.6-16.P1.el5 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
============================================================================================
Package Arch Version Repository Size
============================================================================================
Installing:
bind-chroot x86_64 30:9.3.6-16.P1.el5 oel5 46 k
Transaction Summary
============================================================================================
Install 1 Package(s)
Upgrade 0 Package(s)
Total download size: 46 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : bind-chroot 1/1
Installed:
bind-chroot.x86_64 30:9.3.6-16.P1.el5
Complete!
[root@node1 ~]# yum install caching-nameserver
Loaded plugins: rhnplugin, security
This system is not registered with ULN.
ULN support will be disabled.
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package caching-nameserver.x86_64 30:9.3.6-16.P1.el5 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
============================================================================================
Package Arch Version Repository Size
============================================================================================
Installing:
caching-nameserver x86_64 30:9.3.6-16.P1.el5 oel5 62 k
Transaction Summary
============================================================================================
Install 1 Package(s)
Upgrade 0 Package(s)
Total download size: 62 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : caching-nameserver 1/1
Installed:
caching-nameserver.x86_64 30:9.3.6-16.P1.el5
Complete!
步驟二，配置named.conf
透過複製named.catching-nameserver.conf檔案來生成named.conf
注意cp命令後面的 -p引數用來確保許可權，生成的named.conf 組屬於為root named
[root@node1]# cp -p /var/named/chroot/etc/named.caching-nameserver.conf /var/named/chroot/etc/named.conf
將127.0.0.1 改成 any
:%s/127.0.0.1/any/g
將 localhost 改成 any
:%s/localhost/any/g
[root@node1 etc]# vi /var/named/chroot/etc/named.conf
//
// named.caching-nameserver.conf
//
// Provided by Red Hat caching-nameserver package to configure the
// ISC BIND named(8) DNS server as a caching only nameserver
// (as a any DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
// DO NOT EDIT THIS FILE - use system-config-bind or an editor
// to create named.conf - edits to this file will be lost on
// caching-nameserver package upgrade.
//
options {
listen-on port 53 { any; };
listen-on-v6 port 53 { ::1; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
// Those options should be used carefully because they disable port
// randomization
// query-source port 53;
// query-source-v6 port 53;
allow-query { any; };
allow-query-cache { any; };
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
view any_resolver {
match-clients { any; };
match-destinations { any; };
recursion yes;
include "/etc/named.rfc1912.zones";
};
步驟三, 建立域
[root@node1 etc]# vi /var/named/chroot/etc/named.rfc1912.zones
在檔案末尾追加下列資訊
zone "1.168.192.in-addr.arpa" IN {
type master;
file "1.168.192.in-addr.arpa";
allow-update { none; };
};
配置正、反解析資料庫檔案
[root@node1 named]# cp -p /var/named/chroot/var/named/named.local /var/named/chroot/var/named/1.168.192.in-addr.arpa
[root@node1 named]# ll
total 40
-rw-r----- 1 root named 426 Jan 14 2011 1.168.192.in-addr.arpa
drwxrwx--- 2 named named 4096 Aug 26 2004 data
-rw-r----- 1 root named 198 Jan 14 2011 localdomain.zone
-rw-r----- 1 root named 195 Jan 14 2011 localhost.zone
-rw-r----- 1 root named 427 Jan 14 2011 named.broadcast
-rw-r----- 1 root named 1892 Jan 14 2011 named.ca
-rw-r----- 1 root named 424 Jan 14 2011 named.ip6.local
-rw-r----- 1 root named 426 Jan 14 2011 named.local
-rw-r----- 1 root named 427 Jan 14 2011 named.zero
drwxrwx--- 2 named named 4096 Jul 27 2004 slaves
在正向解析資料庫檔案localdomain.zone末尾追加
echo "scan-cluster IN A 192.168.1.203" >> /var/named/chroot/var/named/localdomain.zone
[root@node1 ~]# vi /var/named/chroot/var/named/localdomain.zone
$TTL 86400
@ IN SOA localhost root (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
IN NS localhost
localhost IN A 127.0.0.1
scan-cluster IN A 192.168.1.203
配置反向解析資料檔案
[root@node1 ~]# echo “191 IN PTR scan-cluster.localdomain." >> /var/named/chroot/var/named/1.168.192.in-addr.arpa
[root@node1 ~]# vi /var/named/chroot/var/named/1.168.192.in-addr.arpa
$TTL 86400
@ IN SOA localhost. root.localhost. (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS localhost.
1 IN PTR localhost.
191 IN PTR scan-cluster.localdomain. <==191 為節點node1的IP地址地址 192.168.1.191最後一組數字
在節點node1，node2分別新增/etc/resolv.conf檔案
[root@node1 ~]# echo "search localdomain
> nameserver 192.168.1.181" >> /etc/resolv.conf
[root@node1 ~]# cat /etc/resolv.conf
search localdomain
nameserver 192.168.1.181
[root@node2 ~]# echo "search local domain
> nameserver 192.168.1.181" >> /etc/resolv.conf
[root@node2 ~]# cat /etc/resolv.conf
search localdomain
nameserver 192.168.1.181
步驟四，啟動DNS服務
在節點node1上啟動DNS服務
[root@node1 named]# /etc/init.d/named status
rndc: connect failed: 127.0.0.1#953: connection refused
named is stopped
[root@node1 named]# /etc/init.d/named start
Starting named: [ OK ]
[root@node1 named]# /etc/init.d/named status
number of zones: 7
debug level: 0
xfers running: 0
xfers deferred: 0
soa queries in progress: 0
query logging is OFF
recursive clients: 0/1000
tcp clients: 0/100
server is up and running
named (pid 8273) is running...
[root@node1 named]#
步驟五，測試DNS
[root@node1 ~]# nslookup 192.168.1.191
Server: 192.168.1.191
Address: 192.168.1.191#53
191.1.168.192.in-addr.arpa name = scan-cluster.localdomain.
[root@node1 ~]# nslookup scan-cluster.localdomain
Server: 192.168.1.191
Address: 192.168.1.191#53
Name: scan-cluster.localdomain
Address: 192.168.1.203
[root@node1 ~]# nslookup scan-cluster
Server: 192.168.1.191
Address: 192.168.1.191#53
Name: scan-cluster.localdomain
Address: 192.168.1.203
[root@node2 ~]# cat /etc/resolv.conf
search localdomain
nameserver 192.168.1.191
[root@node2 ~]# nslookup scan-cluster
Server: 192.168.1.191
Address: 192.168.1.191#53
Name: scan-cluster.localdomain
Address: 192.168.1.203
[root@node2 ~]#
[root@node2 ~]#
[root@node2 ~]# nslookup scan-cluster.localdomain
Server: 192.168.1.191
Address: 192.168.1.191#53
Name: scan-cluster.localdomain
Address: 192.168.1.203
來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/29047826/viewspace-1223072/，如需轉載，請註明出處，否則將追究法律責任。
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